# Coarse woody debris density and nutrient data across western USA, including HJ Andrews Experimental Forest, North Carolina, USA, Mexico and Russia 1982-2001

## Dataset

- **Database Code:** TD022

- **Title:** Coarse woody debris density and nutrient data across western USA, including HJ Andrews Experimental Forest, North Carolina, USA, Mexico and Russia 1982-2001

- **Abstract:**

This data set is used to document the changes in external characteristics, density, nutrient content, and form of carbon associated with various decay classes and ages of logs and snags. The pieces that have been dated form the basis for a chronosequence. All the pieces sampled are used to define the characteristics of decay classes. These classes are used in turn to convert the external dimension data in TD012 to estimates of mass and nutrient stores.


- **Keywords:** decay rates; decomposition; inorganic nutrients; nutrients; coarse woody debris; organic matter; logs; inorganic nutrients; organic matter

- **Temporal coverage:** 1982-09-01 to 2001-06-11

- **Principal Investigator:** Mark E. Harmon


## Data Entities

1. TD02201
2. TD02202
3. TD02203
4. TD02204
5. TD02206
6. TD02207
7. TD02208

## Entity 1: TD02201

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  1.0000  1.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1980.0000  2001.0000, year (yyyy)

Year the sample collection took place


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **SPECIES** — varchar, enum

Code for speciesof the log, snag or stump

  - **ABCO** — Abies concolor
  - **ABLA** — Abies lasiocarpa
  - **ABMA** — Abies magnifica
  - **CADE** — Calocedrus decurrens
  - **KRFE** — Krugiodendron ferreum
  - **PIEN** — Picea engelmannii
  - **PICO** — Pinus contorta
  - **PIJE** — Pinus jeffreyi
  - **PILA** — Pinus lambertiana
  - **PIPO** — Pinus ponderosa
  - **PSME** — Pseudotsuga menziesii
  - **SASA** — Sapindus saponaria
  - **TARO** — Tabebuia rosea
  - **BRAL** — Brosimum alicastrum
  - **BUSI** — Bursera simaruba
  - **MYFR** — Myrcianthes fragrans
  - **CEAE** — Ceiba aesculifolia
  - **MAZA** — Manilkara zapota
  - **TAOL** — Talisia olivaeformis
  - **BEPL** — Beaucarnea pliabilis
  - **UNKN** — unknown


- **POSITION** — varchar, enum

Position of the log, snag, or stump.

  - **L** — Log; indicates piece was horizonatal
  - **S** — Snag; indicates piece was standing dead
  - **P** — Stump; indicates a lower portion of a tree left after tree was harvested


- **DECAY** — varchar, enum

Decay class of sample

  - **** — Green tree with no decay
  - **1** — Freshly killed; sound log with fine twigs present
  - **2** — Beginning to decompose; twigs falling off; bark cover intact
  - **3** — Partially decayed;bark and sapwood sloughing off; many brnaches have fallen Off
  - **4** — Very decayed; unable to support itself; branch stubs can be moved by hand id Icating Wood Decayed To Center.
  - **5** — Extremely decayed; cross-section elliptical; embedded in forest floor; wood Structure Largely Gone


- **AGE** — numeric(1.000000), range  0.0000  500.0000, number of years

Residence time of the cwd piece; the time it has been dead


- **METHOD** — varchar, enum

Method of determining the residence time

  - **F** — Decomposition time estimate is based on visual foliage appearance: Freshly Killed Needles Still Green Or Red-brown
  - **K** — Decomposition time is known
  - **L** — Dated from a living stump
  - **N** — Dated from a seedling on a nurse log.
  - **P** — Palm, by counting annual rings since hit by a log
  - **R** — Dated from a record in a permanent plot.
  - **S** — Dated from a fall scar on a living or recently killed tree.
  - **U** — Decomposition time is undetermined.


- **CAUSE** — varchar, enum

Cause of death; this is very general

  - **BK** — Beetle kill
  - **C** — Tree was cut down as in a thinning operation
  - **F** — Fire; could be based on record or fire scar (latter is less reliable)
  - **O** — Other form of mortality including unknown causes
  - **RB** — Road building
  - **RT** — Root throw
  - **S** — Standing
  - **WB** — Wind break, wind broke stem
  - **WS** — Windsnap; bole is broken off
  - **WT** — Wind throw with the root system tore out of ground


- **DBH** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diameter at breast height of the cwd piece. in cases of very decayed piece this is estimated. used to calculate the original volume and mass


- **BD** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diameter at base of the cwd piece. this is the current measurement and does not correct for fragmentation. used to claculate the current volume& mass


- **TD** — numeric(1.000000), range  1.0000  100.0000, centimeters

Diameter at top of the cwd piece. this is the current measurement and does not correct for fragmentation. used to claculate the current volume& mass


- **LENGTH** — numeric(0.100000), range  0.1000  60.0000, meters

Length of the cwd piece. this includes zones that have decayed away but not spaces caused when the piece fell to the forest floor.


- **BCOVER** — numeric(1.000000), range  0.0000  100.0000, percent

Bark cover on the bole of the cwd piece.


- **VOLMISS** — numeric(0.005000), range  0.0000  0.8200, cubic centimeters

Volume missing. accounts for parts that have decayed away and do not co ntribute to the current volume (except parts missing to non-decay process).


- **DS1** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diamter at first sample point.


- **HS1** — numeric(0.100000), range  0.1000  50.0000, meters

Height at first sample point.


- **DS2** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diameter at second sample point.


- **HS2** — numeric(0.100000), range  0.1000  50.0000, meters

Height at second sample point.


- **DS3** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diameter at third sample point.


- **HS3** — numeric(0.100000), range  0.1000  50.0000, meters

Height at third sample point.


- **DS4** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diameter at fourth sample point.


- **HS4** — numeric(0.100000), range  0.1000  50.0000, meters

Height at fourth sample point.


- **DS5** — numeric(1.000000), range  1.0000  200.0000, centimeters

Diameter at fifth sample point.


- **HS5** — numeric(0.100000), range  0.1000  50.0000, meters

Height at fifth sample point.


- **CURVOL** — numeric(0.000000), range  0.0100  50.0000, cubic centimeters

Current volume of the CWD piece


- **ORIGVOL** — numeric(0.000000), range  0.0100  50.0000, cubic centimeters

Initial volume of the cwd piece


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Entity 2: TD02202

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  2.0000  2.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1980.0000  2001.0000, year (yyyy)

Year the sample collection took place


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **SECTION** — varchar, freetext

Cross-section number or letter of sample; often more than one is taken to give replication


- **OBT** — numeric(1.000000), range  0.0000  67.4000, millimeters

Current radial thickness of outerbark


- **IBT** — numeric(1.000000), range  0.0000  18.0000, millimeters

Current radial thickness of inner bark


- **SWT** — numeric(1.000000), range  0.0000  428.0000, millimeters

Current radial thickness of sapwood


- **HWT** — numeric(1.000000), range  0.0000  546.0000, millimeters

Current radial thickness of heartwood


- **FOB** — numeric(0.100000), range  0.0000  100.0000, percent

Current fraction of crosssection in outer bark


- **FIB** — numeric(0.100000), range  0.0000  46.5000, percent

Current fraction of cross-section in inner bark


- **FSW** — numeric(0.100000), range  0.0000  100.0000, percent

Current fraction of cross-section in sapwood


- **FHW** — numeric(0.100000), range  0.0000  100.0000, percent

Current fraction of cross-section in heartwood


- **DKRAD** — numeric(1.000000), range  0.0000  1000.0000, millimeters

Radial depth of rot; depth to which the rot progrssed from outside inward


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Entity 3: TD02203

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  3.0000  3.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1980.0000  2001.0000, year (yyyy)

Year the sample collection took place


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **SECTION** — varchar, freetext

Cross-section number or letter of sample; often more than one is taken to give replication


- **TISSUE** — varchar, enum

Tissue type of the sample

  - **W** — Wood
  - **S** — Sapwood
  - **H** — Heartwood
  - **B** — Bark; indicates inner and outer bark were measured together
  - **I** — Inner bark
  - **O** — Outer bark


- **THICKNESS** — numeric(0.500000), range  11.0000  281.7000, millimeters

Thickness of the sample, may not be recorded if water displacement used to measure the volume.


- **AREA** — numeric(1.000000), range  0.3000  10496.0000, square centimeters

Area of the sample, may not be recorded if water displacement used to measure the volume.


- **VOLUME** — numeric(0.500000), range  0.7000  98357.8000, cubic centimeters

Volume of the sample, if based on water displacement then thickness and area will be missing. samples soaked 24-48 hrs before displacement measurement


- **DRYWT** — numeric(0.020000), range  0.3000  4057.0000, grams

Usually dry weight of subsample (a wedge), usually after 4-7 days at 55 C.


- **WETWT** — numeric(0.020000), range  0.4800  6453.5000, grams

Usually wet weight of subsample (a wedge), may be missing if water displacement used to measure the volume


- **DENSITY** — numeric(0.010000), range  0.0000  1.4400, grams per cubic centimeter

Density of sample; calculated from dry weight divided by fresh volume. usually total dry weight divided by the volume of a cross-section


- **MOISTURE** — numeric(0.500000), range  0.2000  3641.0000, percent

Moisture content of subsample; calculated as water weight lost during drying divided by the dry weight.


- **TOTWETWT** — numeric(0.010000), range  0.5000  42189.0000, grams

Total wet weight of the sample (entire cross-section) measured in the field


- **TOTDRYWT** — numeric(0.001000), range  0.0000  12532.6152, grams

Total dry weight of the sample (entire cross-section) calc-ted from total wet weight and ratio between subsample dry and wet wghts


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Entity 4: TD02204

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  4.0000  4.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1982.0000  1993.0000, year (yyyy)

Year the sample collection took place


- **SAMPLE_NO** — numeric(1), range  1.0000  6.0000, number

Unique sample number


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **N** — numeric(0.010000), range  0.0100  1.6300, percent

Nitrogen concentration (micro kjeldahl n)


- **TISSUE** — varchar, enum

Tissue type of the sample

  - **W** — Wood
  - **S** — Sapwood
  - **H** — Heartwood
  - **B** — Bark; indicates inner and outer bark were measured together
  - **I** — Inner bark
  - **O** — Outer bark


- **AL** — numeric(0.100000), range  1.0000  2500.0000, parts per million

Aluminum concentration (icap inductively coupled argon spectrophotometry)


- **B** — numeric(0.100000), range  0.5000  195.0000, parts per million

Boron concentration (icap inductively coupled argon spectrophotometry)


- **CA** — numeric(0.100000), range  225.0000  75000.0000, parts per million

Calcium concentration (icap inductively coupled argon spectrophotometry)


- **CU** — numeric(0.100000), range  0.0000  1200.0000, parts per million

Copper concentration (icap inductively coupled argon spectrophotometry)


- **FE** — numeric(0.100000), range  2.0000  5776.8000, parts per million

Iron concentration (icap inductively coupled argon spectrophotometry)


- **K** — numeric(1.000000), range  66.0000  37400.0000, parts per million

Potassium concentration (icap inductively coupled argon spectrophotometry)


- **MG** — numeric(0.100000), range  13.0000  5000.0000, parts per million

Magnesium concentration (icap inductively coupled argon spectrophotometry)


- **MN** — numeric(0.100000), range  0.0000  1400.7000, parts per million

Manganese concentration (icap inductively coupled argon spectrophotometry)


- **P** — numeric(0.100000), range  3.3000  5058.7002, parts per million

Phosphorus concentration (icap inductively coupled argon spectrophotometry)


- **S** — numeric(0.100000), range  0.0000  0.0000, parts per million

Sulfur concentration (icap inductively coupled argon spectrophotometry)


- **ZN** — numeric(0.100000), range  1.0000  650.9000, parts per million

Zinc concentration (icap inductively coupled argon spectrophotometry)


- **NA** — numeric(0.100000), range  0.0000  4800.0000, parts per million

Sodium concentration (icap inductively coupled argon spectrophotometry)


- **LAB** — varchar, enum

Analyzing laboratory

  - **CAL** — Lab where analysis was performed (CAL, Michigan, or UPN)
  - **MMI** — Lab where analysis was performed (CAL, Michigan, or UPN)
  - **UPN** — Lab where analysis was performed (CAL, Michigan, or UPN)


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Entity 5: TD02206

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  6.0000  6.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1980.0000  2001.0000, year (yyyy)

Year the sample collection took place


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **SECTION** — varchar, freetext

Cross-section number or letter of sample; often more than one is taken to give replication


- **DKRAD** — numeric(1.000000), range  0.0000  743.5000, millimeters

Radial depth of rot; depth to which the rot progrssed from outside inward


- **TOTRAD** — numeric(1.000000), range  0.0000  566.0000, centimeters

Total radius of wooden tissues in a cross-section


- **PDKRAD** — numeric(1.000000), range  0.0000  394.0000, percent

Percent of radius decayed


- **PDKVOL** — numeric(1.000000), range  0.0000  357.0000, cubic centimeters

Percent of volume decayed


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Entity 6: TD02207

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  7.0000  7.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1980.0000  2001.0000, year (yyyy)

Year the sample collection took place


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **SECTION** — varchar, freetext

Cross-section number or letter of sample; often more than one is taken to give replication


- **IOBT** — numeric(1.000000), range  -0.5000  67.4000, millimeters

Initial radial thickness of outerbark


- **IIBT** — numeric(1.000000), range  0.0000  18.0000, millimeters

Initial radial thickness of inner bark


- **ISWT** — numeric(1.000000), range  0.0000  428.0000, millimeters

Initial radial thickness of sapwood


- **IHWT** — numeric(1.000000), range  0.0000  546.0000, millimeters

Initial radial thickness of heartwood


- **IFOB** — numeric(0.100000), range  -20.5000  100.0000, percent

Initial fraction of cross-section in outer bark


- **IFIB** — numeric(0.100000), range  0.0000  25.0000, percent

Initial fraction of cross-section in inner bark


- **IFSW** — numeric(0.100000), range  0.0000  100.0000, percent

Initial fraction of cross-section in sapwood


- **IFHW** — numeric(0.100000), range  0.0000  100.0000, percent

Initial fraction of cross-section in heartwood


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Entity 7: TD02208

### Attribute list

- **DBCODE** — varchar, enum

FSDB Database Code

  - **TD022** — FSDB Database Code TD022 (terrestrial decomposition)


- **ENTITY** — numeric(1.000000), range  8.0000  8.0000, number

Entity number


- **STUDYID** — varchar, enum

Study Id, matches those in TD12 and TV010 whenever possible

  - **EUS** — Eastern United States
  - **INTM** — Intermountain United States
  - **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk
  - **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia
  - **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia
  - **MEX** — Mexico
  - **MOSK** — Moscow region, Russia
  - **NNOV** — Nizhnii novgorod; Russia
  - **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia
  - **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia
  - **PNW** — Pacific Northwest, United States
  - **PSW** — Pacific Southwest, United States
  - **STAR** — EPA star project headed by Dr. Beverly Law
  - **STPB** — St.-Petersburg; Russia
  - **WINE** — Winema National Forest
  - **WRE** — Wind River Xxperimental Forest


- **STAND** — varchar, enum

Code for stand

  - **ME** — Metolius RNA
  - **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo
  - **THUN** — WIND RIVER R.D. CUT UNIT, THUN
  - **BONE** — WIND RIVER R.D. CUT UNIT, BONE
  - **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1
  - **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2
  - **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4
  - **COUG** — WIND RIVER R.D. CUT UNIT, COUG
  - **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR
  - **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2
  - **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF
  - **CHEF** — Cascade Head Experimental Forest OR (TD027)
  - **NCB** — North Carolina Botanical Garden, Chapel Hill, NC
  - **PFEF** — Pringle Falls Experimental Forest Oregon
  - **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
  - **YUC** — Noh Bec, Quintana Roo, Mexico
  - **OHJA** — Andrews Forest and vicinity Reference Stands
  - **PPGY** — Ponderosa Pine Growth and Yield Study
  - **RMRS** — Rocky Mountain Reference Stands
  - **SQNP** — Sequoia National Park Reference Stands
  - **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station
  - **NZUD** — Nizhneudinsk, Russia
  - **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo
  - **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)
  - **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)
  - **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo
  - **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo
  - **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo
  - **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia
  - **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo
  - **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)
  - **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)
  - **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)
  - **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)
  - **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo
  - **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo
  - **PZMA** — Pizhma village, Russia
  - **BERD** — Berdskii leskhoz (forest management enterprise)
  - **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo
  - **NSIB** — Novosibirsk, Russia
  - **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)
  - **KART** — Kartashevka, Russia
  - **KOBN** — Korbona, Russia
  - **LYSI** — Lysino, Russia
  - **NOVG** — Novgorod, Russia
  - **VRZA** — Viritza, Russia
  - **KRD** — Kalamath r.d., Winema National Forest


- **PLOT** — varchar, freetext

Arbitrary site number associated with cwd piece.


- **YEAR** — numeric(1.000000), range  1982.0000  2001.0000, year (yyyy)

Year the sample collection took place


- **NUMBER** — varchar, freetext

Identifying code/number of CWD piece


- **NEEDLES** — varchar, enum

Is foliage (leaves or needles) present? y=yes n=no

  - **Y** — Yes
  - **N** — No


- **TWIGS** — varchar, enum

Are twigs present?

  - **Y** — Yes
  - **N** — No


- **BRANCHES** — varchar, enum

Are branches present?

  - **Y** — Yes
  - **N** — No


- **BARKBR** — varchar, enum

Is bark still on the branches?

  - **Y** — Yes
  - **N** — No


- **BARKBOLE** — varchar, enum

Is bark still on the bole?

  - **Y** — Yes
  - **N** — No


- **SAPSLOUGH** — varchar, enum

Is sapwood sloughing off the bole?

  - **Y** — Yes
  - **N** — No


- **COLLAPSE** — varchar, enum

Is the log collasping and unable to support its own weight?

  - **Y** — Yes
  - **N** — No


- **SCATTER** — varchar, enum

Is the log scattered over surface and ellpitical in cross-section?

  - **Y** — Yes
  - **N** — No


- **CONKS** — varchar, enum

Are there fungal conks present?

  - **Y** — Yes
  - **N** — No


- **MOSS** — varchar, enum

Is there moss cover present?

  - **Y** — Yes
  - **N** — No


- **LICHENS** — varchar, enum

Is there lichen cover present?

  - **Y** — Yes
  - **N** — No


- **ANTS** — varchar, enum

Is there evidence of carpenter ants present? best evidence is from cutting into the log

  - **Y** — Yes
  - **N** — No


- **TERMITES** — varchar, enum

Is there evidence of termites present? best evidence is from cutting into the log

  - **Y** — Yes
  - **N** — No


- **BEETLES** — varchar, enum

Is there evidence of bark beetles present? best evidence is from underside of bark or wood surface of the log

  - **Y** — Yes
  - **N** — No


- **BEARS** — varchar, enum

Is there evidence of bears have been ripping open logs?

  - **Y** — Yes
  - **N** — No


- **BROWNROT** — varchar, enum

Is there cubical brown rot present?

  - **Y** — Yes
  - **N** — No


- **WHITEROT** — varchar, enum

Is there white rot present?

  - **Y** — Yes
  - **N** — No


- **SAPFRIAB** — varchar, enum

Is the sapwood friable? crushed by hand?

  - **Y** — Yes
  - **N** — No


- **HWFRIAB** — varchar, enum

Is the heartwood friable? crushed by hand?

  - **Y** — Yes
  - **N** — No


- **CASEHARD** — varchar, enum

Is there casehardening of the outer wood? wood takes on a bleached look and is solid

  - **Y** — Yes
  - **N** — No


- **STUBSMOV** — varchar, enum

Can you move the branch subs sticking out of the log by hand? this indicates wood is rotten to the center

  - **Y** — Yes
  - **N** — No


- **WOODBORER** — varchar, enum

Woodborers present?

  - **Y** — Yes
  - **N** — No


- **SAMPLEDATE** — datetime, freetext

Date the sample collection took place


## Attribute Definitions

**AGE**

Residence time of the cwd piece; the time it has been dead


**AL**

Aluminum concentration (icap inductively coupled argon spectrophotometry)


**ANTS**

Is there evidence of carpenter ants present? best evidence is from cutting into the log


**AREA**

Area of the sample, may not be recorded if water displacement used to measure the volume.


**B**

Boron concentration (icap inductively coupled argon spectrophotometry)


**BARKBOLE**

Is bark still on the bole?


**BARKBR**

Is bark still on the branches?


**BCOVER**

Bark cover on the bole of the cwd piece.


**BD**

Diameter at base of the cwd piece. this is the current measurement and does not correct for fragmentation. used to claculate the current volume& mass


**BEARS**

Is there evidence of bears have been ripping open logs?


**BEETLES**

Is there evidence of bark beetles present? best evidence is from underside of bark or wood surface of the log


**BRANCHES**

Are branches present?


**BROWNROT**

Is there cubical brown rot present?


**CA**

Calcium concentration (icap inductively coupled argon spectrophotometry)


**CASEHARD**

Is there casehardening of the outer wood? wood takes on a bleached look and is solid


**CAUSE**

Cause of death; this is very general


**COLLAPSE**

Is the log collasping and unable to support its own weight?


**CONKS**

Are there fungal conks present?


**CU**

Copper concentration (icap inductively coupled argon spectrophotometry)


**CURVOL**

Current volume of the CWD piece


**DBCODE**

FSDB Database Code


**DBH**

Diameter at breast height of the cwd piece. in cases of very decayed piece this is estimated. used to calculate the original volume and mass


**DECAY**

Decay class of sample


**DENSITY**

Density of sample; calculated from dry weight divided by fresh volume. usually total dry weight divided by the volume of a cross-section


**DKRAD**

Radial depth of rot; depth to which the rot progrssed from outside inward


**DRYWT**

Usually dry weight of subsample (a wedge), usually after 4-7 days at 55 C.


**DS1**

Diamter at first sample point.


**DS2**

Diameter at second sample point.


**DS3**

Diameter at third sample point.


**DS4**

Diameter at fourth sample point.


**DS5**

Diameter at fifth sample point.


**ENTITY**

Entity number


**FE**

Iron concentration (icap inductively coupled argon spectrophotometry)


**FHW**

Current fraction of cross-section in heartwood


**FIB**

Current fraction of cross-section in inner bark


**FOB**

Current fraction of crosssection in outer bark


**FSW**

Current fraction of cross-section in sapwood


**HS1**

Height at first sample point.


**HS2**

Height at second sample point.


**HS3**

Height at third sample point.


**HS4**

Height at fourth sample point.


**HS5**

Height at fifth sample point.


**HWFRIAB**

Is the heartwood friable? crushed by hand?


**HWT**

Current radial thickness of heartwood


**IBT**

Current radial thickness of inner bark


**IFHW**

Initial fraction of cross-section in heartwood


**IFIB**

Initial fraction of cross-section in inner bark


**IFOB**

Initial fraction of cross-section in outer bark


**IFSW**

Initial fraction of cross-section in sapwood


**IHWT**

Initial radial thickness of heartwood


**IIBT**

Initial radial thickness of inner bark


**IOBT**

Initial radial thickness of outerbark


**ISWT**

Initial radial thickness of sapwood


**K**

Potassium concentration (icap inductively coupled argon spectrophotometry)


**LAB**

Analyzing laboratory


**LENGTH**

Length of the cwd piece. this includes zones that have decayed away but not spaces caused when the piece fell to the forest floor.


**LICHENS**

Is there lichen cover present?


**METHOD**

Method of determining the residence time


**MG**

Magnesium concentration (icap inductively coupled argon spectrophotometry)


**MN**

Manganese concentration (icap inductively coupled argon spectrophotometry)


**MOISTURE**

Moisture content of subsample; calculated as water weight lost during drying divided by the dry weight.


**MOSS**

Is there moss cover present?


**N**

Nitrogen concentration (micro kjeldahl n)


**NA**

Sodium concentration (icap inductively coupled argon spectrophotometry)


**NEEDLES**

Is foliage (leaves or needles) present? y=yes n=no


**NUMBER**

Identifying code/number of CWD piece


**OBT**

Current radial thickness of outerbark


**ORIGVOL**

Initial volume of the cwd piece


**P**

Phosphorus concentration (icap inductively coupled argon spectrophotometry)


**PDKRAD**

Percent of radius decayed


**PDKVOL**

Percent of volume decayed


**PLOT**

Arbitrary site number associated with cwd piece.


**POSITION**

Position of the log, snag, or stump.


**S**

Sulfur concentration (icap inductively coupled argon spectrophotometry)


**SAMPLEDATE**

Date the sample collection took place


**SAMPLE_NO**

Unique sample number


**SAPFRIAB**

Is the sapwood friable? crushed by hand?


**SAPSLOUGH**

Is sapwood sloughing off the bole?


**SCATTER**

Is the log scattered over surface and ellpitical in cross-section?


**SECTION**

Cross-section number or letter of sample; often more than one is taken to give replication


**SPECIES**

Code for speciesof the log, snag or stump


**STAND**

Code for stand


**STUBSMOV**

Can you move the branch subs sticking out of the log by hand? this indicates wood is rotten to the center


**STUDYID**

Study Id, matches those in TD12 and TV010 whenever possible


**SWT**

Current radial thickness of sapwood


**TD**

Diameter at top of the cwd piece. this is the current measurement and does not correct for fragmentation. used to claculate the current volume& mass


**TERMITES**

Is there evidence of termites present? best evidence is from cutting into the log


**THICKNESS**

Thickness of the sample, may not be recorded if water displacement used to measure the volume.


**TISSUE**

Tissue type of the sample


**TOTDRYWT**

Total dry weight of the sample (entire cross-section) calc-ted from total wet weight and ratio between subsample dry and wet wghts


**TOTRAD**

Total radius of wooden tissues in a cross-section


**TOTWETWT**

Total wet weight of the sample (entire cross-section) measured in the field


**TWIGS**

Are twigs present?


**VOLMISS**

Volume missing. accounts for parts that have decayed away and do not co ntribute to the current volume (except parts missing to non-decay process).


**VOLUME**

Volume of the sample, if based on water displacement then thickness and area will be missing. samples soaked 24-48 hrs before displacement measurement


**WETWT**

Usually wet weight of subsample (a wedge), may be missing if water displacement used to measure the volume


**WHITEROT**

Is there white rot present?


**WOODBORER**

Woodborers present?


**YEAR**

Year the sample collection took place


**ZN**

Zinc concentration (icap inductively coupled argon spectrophotometry)


## Enumerated Domains

### DBCODE

- **TD022** — FSDB Database Code TD022 (terrestrial decomposition)

### STUDYID

- **EUS** — Eastern United States

- **INTM** — Intermountain United States

- **IRIR** — Russia; 1-st pair of letters describes the forest inventory enterprise, Ir=Irkutsk; 2-nd Pair Of Letters Describes The Region-"oblast'", Ir=Irkutsk

- **KHKH** — KH=Kabarovsk inventory enterprise; kH=Khabarovs region-"oblast"; russia

- **KRKR** — KR=Krasnoyarsk inventory enterprise; KR=Krasnoyarsk region-"oblast"; russia

- **MEX** — Mexico

- **MOSK** — Moscow region, Russia

- **NNOV** — Nizhnii novgorod; Russia

- **NSNS** — NS=NNvosibirsk inventory enterprise; NS=Novosibirsk region-"oblast"; Russia

- **NSTM** — NS=Novosibirsk inventory enterprise; TM=Tiumenskaya "oblast"-region; Russia

- **PNW** — Pacific Northwest, United States

- **PSW** — Pacific Southwest, United States

- **STAR** — EPA star project headed by Dr. Beverly Law

- **STPB** — St.-Petersburg; Russia

- **WINE** — Winema National Forest

- **WRE** — Wind River Xxperimental Forest

### STAND

- **ME** — Metolius RNA

- **RSF** — Rancho San Felipe, Puerto Morelos, Quintana Roo

- **THUN** — WIND RIVER R.D. CUT UNIT, THUN

- **BONE** — WIND RIVER R.D. CUT UNIT, BONE

- **TCH1** — WIND RIVER R.D. CUT UNIT, TCH1

- **VIM2** — WIND RIVER R.D. CUT UNIT, VIM2

- **SEC4** — WIND RIVER R.D. CUT UNIT, SEC4

- **COUG** — WIND RIVER R.D. CUT UNIT, COUG

- **PCR2** — WIND RIVER R.D. CUT UNIT, PLCR

- **TCH2** — WIND RIVER R.D. CUT UNIT, TCH2

- **SOSF** — WIND RIVER R.D. CUT UNIT, SOSF

- **CHEF** — Cascade Head Experimental Forest OR (TD027)

- **NCB** — North Carolina Botanical Garden, Chapel Hill, NC

- **PFEF** — Pringle Falls Experimental Forest Oregon

- **TUX** — Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico

- **YUC** — Noh Bec, Quintana Roo, Mexico

- **OHJA** — Andrews Forest and vicinity Reference Stands

- **PPGY** — Ponderosa Pine Growth and Yield Study

- **RMRS** — Rocky Mountain Reference Stands

- **SQNP** — Sequoia National Park Reference Stands

- **BABA** — BA=Bayandaiskii lekhoz (forest management enterprise); BA=Bayandaevskoe Lesnichestvo (ranger station

- **NZUD** — Nizhneudinsk, Russia

- **OLKO** — OL=Ol'khonskii leskhoz; KO=Kosostepskoe lesnichestvo

- **STIL** — ST=Shestakovskii leskhoz (forest management entermprise); IL=Ilimskoe Lesnichestvo (ranger station)

- **BTKL** — BT=Bystrinskii leskhoz (fme); KL=Kliuchevskoe lesnichestvo (ranger station)

- **KHKF** — KH=Khorskii leskhoz; KF=Kafenskoe lesnichestvo

- **KHKT** — KH=Khorskii leskhoz; KT=Katenskoe lesnichestvo

- **KHLA** — Kh=khorskii leskhoz; LA=Lazovskoe lesnichestvo

- **KHLZ** — Khabarovskii leskhoz (forest management enterprise), Russia

- **ULBR** — UL=Ul'chskii leskhoz; BR=Bogorodskoe lesnichestvo

- **BGKB** — BG=Boguchanskii leskhoz (fme); karabul'skoe lesnichestvo (ranger station)

- **CHCH** — CH=Chunskii leskhoz (forest management enterprise); CH=Chunoyarskoe Lesnichestvo (ranger station)

- **CHKH** — CH=Chunskii leskhoz (fme); khozhenskoe lesnichestvo (ranger station)

- **CHTA** — CH=Chunskii leskhoz (fme); takuchetskoe lesnichestvo (ranger station)

- **EMKE** — EM=Emel'yanovskii leskhoz (fme); ke=kemchugskoe lesnichestvo

- **POPO** — PO=Podol'skii leskhoz; podol'skoe lesnichestvo

- **PZMA** — Pizhma village, Russia

- **BERD** — Berdskii leskhoz (forest management enterprise)

- **MIMI** — MI=Mirnovskii leskhoz; MI=Mirnovskoe lesnichestvo

- **NSIB** — Novosibirsk, Russia

- **BEKZ** — BE=Beloyarskii leskhoz (forest management enterprise); KZ= Kazymskoe Lesnichestvo (ranger station)

- **KART** — Kartashevka, Russia

- **KOBN** — Korbona, Russia

- **LYSI** — Lysino, Russia

- **NOVG** — Novgorod, Russia

- **VRZA** — Viritza, Russia

- **KRD** — Kalamath r.d., Winema National Forest

### SPECIES

- **ABCO** — Abies concolor

- **ABLA** — Abies lasiocarpa

- **ABMA** — Abies magnifica

- **CADE** — Calocedrus decurrens

- **KRFE** — Krugiodendron ferreum

- **PIEN** — Picea engelmannii

- **PICO** — Pinus contorta

- **PIJE** — Pinus jeffreyi

- **PILA** — Pinus lambertiana

- **PIPO** — Pinus ponderosa

- **PSME** — Pseudotsuga menziesii

- **SASA** — Sapindus saponaria

- **TARO** — Tabebuia rosea

- **BRAL** — Brosimum alicastrum

- **BUSI** — Bursera simaruba

- **MYFR** — Myrcianthes fragrans

- **CEAE** — Ceiba aesculifolia

- **MAZA** — Manilkara zapota

- **TAOL** — Talisia olivaeformis

- **BEPL** — Beaucarnea pliabilis

- **UNKN** — unknown

### POSITION

- **L** — Log; indicates piece was horizonatal

- **S** — Snag; indicates piece was standing dead

- **P** — Stump; indicates a lower portion of a tree left after tree was harvested

### DECAY

- **** — Green tree with no decay

- **1** — Freshly killed; sound log with fine twigs present

- **2** — Beginning to decompose; twigs falling off; bark cover intact

- **3** — Partially decayed;bark and sapwood sloughing off; many brnaches have fallen Off

- **4** — Very decayed; unable to support itself; branch stubs can be moved by hand id Icating Wood Decayed To Center.

- **5** — Extremely decayed; cross-section elliptical; embedded in forest floor; wood Structure Largely Gone

### METHOD

- **F** — Decomposition time estimate is based on visual foliage appearance: Freshly Killed Needles Still Green Or Red-brown

- **K** — Decomposition time is known

- **L** — Dated from a living stump

- **N** — Dated from a seedling on a nurse log.

- **P** — Palm, by counting annual rings since hit by a log

- **R** — Dated from a record in a permanent plot.

- **S** — Dated from a fall scar on a living or recently killed tree.

- **U** — Decomposition time is undetermined.

### CAUSE

- **BK** — Beetle kill

- **C** — Tree was cut down as in a thinning operation

- **F** — Fire; could be based on record or fire scar (latter is less reliable)

- **O** — Other form of mortality including unknown causes

- **RB** — Road building

- **RT** — Root throw

- **S** — Standing

- **WB** — Wind break, wind broke stem

- **WS** — Windsnap; bole is broken off

- **WT** — Wind throw with the root system tore out of ground

### TISSUE

- **W** — Wood

- **S** — Sapwood

- **H** — Heartwood

- **B** — Bark; indicates inner and outer bark were measured together

- **I** — Inner bark

- **O** — Outer bark

### LAB

- **CAL** — Lab where analysis was performed (CAL, Michigan, or UPN)

- **MMI** — Lab where analysis was performed (CAL, Michigan, or UPN)

- **UPN** — Lab where analysis was performed (CAL, Michigan, or UPN)

### NEEDLES

- **Y** — Yes

- **N** — No

### TWIGS

- **Y** — Yes

- **N** — No

### BRANCHES

- **Y** — Yes

- **N** — No

### BARKBR

- **Y** — Yes

- **N** — No

### BARKBOLE

- **Y** — Yes

- **N** — No

### SAPSLOUGH

- **Y** — Yes

- **N** — No

### COLLAPSE

- **Y** — Yes

- **N** — No

### SCATTER

- **Y** — Yes

- **N** — No

### CONKS

- **Y** — Yes

- **N** — No

### MOSS

- **Y** — Yes

- **N** — No

### LICHENS

- **Y** — Yes

- **N** — No

### ANTS

- **Y** — Yes

- **N** — No

### TERMITES

- **Y** — Yes

- **N** — No

### BEETLES

- **Y** — Yes

- **N** — No

### BEARS

- **Y** — Yes

- **N** — No

### BROWNROT

- **Y** — Yes

- **N** — No

### WHITEROT

- **Y** — Yes

- **N** — No

### SAPFRIAB

- **Y** — Yes

- **N** — No

### HWFRIAB

- **Y** — Yes

- **N** — No

### CASEHARD

- **Y** — Yes

- **N** — No

### STUBSMOV

- **Y** — Yes

- **N** — No

### WOODBORER

- **Y** — Yes

- **N** — No