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TD021 – Simplified metadata

← Back to TD021 detail

Dataset

Database Code
TD021
Title
Fine wood decay studies across western USA, North Carolina, USA, Mexico and Russia, 1989 to 2015
Abstract
This study was established to examine the loss of mass and changes in nutrient content of fine woody debris in various ecosystems. Also examined was the effect of piece size, position (aboveground, belowground, or suspended), and species on loss of mass over time.
Keywords
decomposition; nutrient cycling; detritus; inorganic nutrients; nutrients; wood; woody debris; organic matter; fine woody debris; inorganic nutrients; organic matter
Date begin
1985-10-15
Date end
2015-10-29
Principal Investigator
Mark E. Harmon

Entities

  1. TD02101
  2. TD02102
  3. TD02103
  4. TD02104
  5. TD02105

1. TD02101 - Attribute list

TD02101 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 1.0000 1.0000 number
SITE varchar enum
TIMEOUT numeric(0.010000) range 0.4700 30.0400 number of years
SPECIES varchar enum
SIZE varchar enum
SOURCE varchar enum
POSITION varchar enum
REP varchar enum
SAMPLE_NO numeric(1.000000) range 1.0000 2.0000 number
NIR_NUM numeric(1.000000) range 20.0000 70500.0000 number
DATEOUT datetime freetext
DIAM numeric(1.000000) range 1.8000 183.0000 centimeters
ILENGTH numeric(1.000000) range 7.7000 100.0000 centimeters
IWW numeric(0.010000) range 0.0000 7584.0000 grams
MCF numeric(0.001000) range 0.0000 2.0000 number
IODW numeric(0.010000) range 0.0000 5000.0000 grams
IDENS numeric(0.001000) range 0.0000 2.5000 grams per cubic centimeter
DATEIN datetime freetext
FWW numeric(0.010000) range 0.0000 6550.0000 grams
FOW numeric(0.010000) range 0.0000 3625.0000 grams
PRM numeric(0.001000) range 0.0000 170.0000 percent
IDENTITY_NR numeric(1.000000) range 1.0000 70490.0000 number
LOCATION varchar freetext
STAND_COND varchar enum
COMMENT varchar enum
OSU_NO numeric(1.000000) range 901.0000 4352.0000 number
OUTLIER varchar enum

2. TD02102 - Attribute list

TD02102 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 2.0000 2.0000 number
SITE varchar enum
TIME numeric(1.000000) range 0.0000 0.0000 number of years
SPECIES varchar enum
SIZE varchar enum
SOURCE varchar enum
SAMPLE_NO numeric(1.000000) range 1.0000 4.0000 number
DATE datetime freetext
NIR_NUM numeric(1.000000) range 90046.0000 94457.0000 number
CRWT numeric(0.000100) range 16.1500 20.2600 grams
CRSWT numeric(0.000100) range 17.2416 21.2800 grams
CRASH numeric(0.000100) range 16.1600 20.2672 grams
IASH numeric(0.001000) range 0.4300 2.0700 percent
ASHFREE numeric(0.000100) range 0.9438 0.9957 number
EST varchar enum
LAB varchar enum

3. TD02103 - Attribute list

TD02103 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 3.0000 3.0000 number
SITE varchar enum
TIME numeric(1.000000) range 0.0000 0.0000 number of years
SPECIES varchar enum
SIZE varchar enum
SOURCE varchar enum
SAMPLE_NO numeric(1.000000) range 1.0000 8.0000 number
DATE datetime freetext
NIR_NUM numeric(1.000000) range 90046.0000 94457.0000 number
ASH numeric(0.010000) range 0.4300 2.0700 percent
NPE numeric(0.010000) range 0.4500 9.8800 percent
WS numeric(0.010000) range 4.0600 13.2900 percent
ACIDSOL numeric(0.010000) range 34.7100 65.3800 percent
LIGNIN numeric(0.010000) range 28.2800 57.2800 percent
TANNIN numeric(0.010000) range 0.1200 4.3200 percent
WSCARB numeric(0.010000) range 0.7200 3.6200 percent
ASCARB numeric(0.010000) range 4.5500 37.0100 percent
NITROGEN numeric(0.010000) range 0.0300 0.2300 percent
LAB varchar enum

4. TD02104 - Attribute list

TD02104 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 4.0000 4.0000 number
SITE varchar enum
TIME numeric(1.000000) range 0.0000 10.0000 number of years
SPECIES varchar enum
SIZE varchar enum
SAMPLE_NO numeric(1.000000) range 1.0000 6.0000 number
DATE datetime freetext
N numeric(1) range 0.2000 2.2700 number
AL numeric(1) range 3.0000 2157.0000 parts per million
B numeric(1) range 2.0000 95.0000 parts per million
CA numeric(1) range 1000.0000 100000.0000 parts per million
CU numeric(1) range 1.0000 8.9000 parts per million
FE numeric(1) range 5.0000 2000.0000 parts per million
K numeric(1) range 400.0000 45900.0000 parts per million
MG numeric(1) range 300.0000 17000.0000 parts per million
MN numeric(1) range 1.0000 140.0000 parts per million
P numeric(1) range 30.0000 3430.0000 parts per million
ZN numeric(1) range 1.0000 101.0000 parts per million
NA numeric(1) range 88.0000 1472.0000 parts per million
OSU_NO numeric(1.000000) range 1.0000 4459.0000 number

5. TD02105 - Attribute list

TD02105 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 5.0000 5.0000 number
SITE varchar enum
SPECIES varchar enum
SIZE varchar enum
SOURCE varchar enum
POSITION varchar enum
EQN_FORM varchar enum
N_OBS numeric(1) range 1.0000 15.0000 number
DECAY_RATE numeric(1) range 0.0000 1.8500 number
DECAY_RATE_SE numeric(1) range 0.0000 1.0000 number
INTERCEPT numeric(1) range 0.0000 2.3100 number
INTERCEPT_SE numeric(1) range 0.0000 2.0000 number
INTERCEPT_FORCED varchar enum
DECAY_RATE_PV numeric(1) range 0.0000 1.0000 number
INTERCEPT_PV numeric(1) range 0.0000 1.0000 number
LAG numeric(1) range 0.0000 20.0000 number
LAG_SE numeric(1) range 0.0000 20.0000 number
LAG_PV numeric(1) range 0.0000 1.0000 number
R_SQUARED numeric(1) range -30.9200 1.0000 number
OVERALL_PV varchar enum
DECAY_LAG_CORR numeric(1) range 0.0000 1.0000 number
DECAY_INTERCEPT_CORR numeric(1) range -0.8600 1.0000 number
P1T0 numeric(1) range 0.0000 1.0000 number
P1T0_SE numeric(1) range 0.0000 1317560.0000 number
DECAY_RATE_K1 numeric(1) range 0.0000 1.0000 number
DECAY_RATE_K1_SE numeric(1) range 0.0000 1850.0000 number
DECAY_RATE_K2 numeric(1) range 0.0000 1.0000 number
DECAY_RATE_K2_SE numeric(1) range 0.0000 27020.0000 number
K1_K2_CORR numeric(1) range 0.0000 1.0000 number
K1_P1T0_CORR numeric(1) range -1.0000 1.0000 number

Attribute definitions

ACIDSOL
Acid soluble carbohydrates
AL
Aluminum concentration
ASCARB
Percent acid soluble carbohydrates as measured by Ryan et. al. method
ASH
Percent of sample that was composed of ash
ASHFREE
Proportion of sample that was ash free
B
Boron concentration
CA
Calcium concentration
COMMENT
Comments
CRASH
Weight of crucible and ash. ashing was at 400 deg C for 4 hours
CRSWT
Weight of the crucible and sample
CRWT
Crucible weight prior to adding sample
CU
Copper concentration
DATE
Date samples were run
DATEIN
Date of sample harvest from field
DATEOUT
Date the branches were placed in the field.
DBCODE
FSBD study code
DECAY_INTERCEPT_CORR
Correlation between k and intercept parameters used for single exponential model only
DECAY_LAG_CORR
Correlation between k and lag parameters, used for lag model only
DECAY_RATE
Decomposition rate-constant (k) estimated parameter
DECAY_RATE_K1
Decomposition rate-constant for part 1 (k1) estimated parameter for dual exponential
DECAY_RATE_K1_SE
Standard error of the k1 estimated parameter
DECAY_RATE_K2
Decomposition rate-constnat for part 2 (k2) estimated parameter for dual exponential
DECAY_RATE_K2_SE
Standard error of the k2 estimated parameter
DECAY_RATE_PV
p-value of k parameter
DECAY_RATE_SE
Standard error of decomposition rate-constant estimated parameter
DIAM
Diameter of sample
ENTITY
FSDB entity number
EQN_FORM
Defines the model equation used to estimate parameters
EST
Indicates if a pooled sample was used to est. the ashfree content. All weights are blank for this condition
FE
Iron concentration
FOW
Final oven dry weight (55 deg C)
FWW
Final wet weight
IASH
Percent initial ash
IDENS
Initial density of sample
IDENTITY_NR
Unique database number
ILENGTH
Measured initial length of branch sample
INTERCEPT
Intercept estimated parameter
INTERCEPT_FORCED
Intercept forced to be between 0.95 and 1.05 for linear and equal to 1 for lag and dual-exponential equations at time 0 (Y,N)
INTERCEPT_PV
p-value of intercept parameter
INTERCEPT_SE
Standard error of intercept estimated parameter
IODW
Initial oven dry weight
IWW
Initial wet weight
K
Potassium concentration
K1_K2_CORR
Correlation between k1 and k2, used for dual exponential model only
K1_P1T0_CORR
Correlation between k1 and proportion of mass for k1 used for dual exponential model only
LAB
Code to indicate lab which performed the analysis
LAG
Lag estimated parameter
LAG_PV
p-value of lag parameter
LAG_SE
Standard error of lag estimated parameter
LIGNIN
Lignin as measured by Ryan et. al. method
LOCATION
Full name of site
MCF
Moisture correction factor used to obtain initial dry weight
MG
Magnesium concentration
MN
Magnesium concentration
N
Nitrogen concentation (micro Kjeldahl nitrogen)
NA
Sodium concentration
NIR_NUM
Unique number for individual or pooled samples
NITROGEN
Total nitrogen as measured by kjeldahl method
NPE
Non-polar extractives
N_OBS
Number of observations used to estimate model parameters
OSU_NO
Unique number assigned for chemical analysis
OUTLIER
Flagged as outlier
OVERALL_PV
Significance of the p-value of overall equation
P
Phosphorus concentration
P1T0
Initial proportion of mass applied to k1 in dual exponential equation
P1T0_SE
Standard error of the P1t0 estimated parameter
POSITION
Placement of sample relative to the ground
PRM
Percent remaining mass
REP
Replication number
R_SQUARED
r-squared of overall equation
SAMPLE_NO
Indicates if sample is repeated 1 is first, 2 is duplicate
SITE
Site where samples were incubated in field
SIZE
Diameter class of branch sample
SOURCE
Part of tree from which sample was cut
SPECIES
Species code of sample
STAND_COND
Stand condition
TANNIN
Tannin measured against tannic acid standard using denis-folin reagent
TIME
Proposed time interval to collect samples in the field; interval is typically 1 year, but at the Mexico sites (tropical) it is half a year; refer to TIMEOUT for field incubation time
TIMEOUT
Time in years that sample spent in field (actual time of decomposition)
WS
Water soluble extractives
WSCARB
Percent water soluble carbohydrates as measured by Ryan et. al. method
ZN
Zinc concentration

Enumerated domains

Enumerated domain for attribute: DBCODE

Codes for DBCODE
Code Description
TD021 FSDB study code TD021

Enumerated domain for attribute: SITE

Codes for SITE
Code Description
MTR Mt. Rainier National Park
ASH Ashland RNA
BDC Boques de Cancun, Quintana Roo
CXC Chuny Xche Site, S. Of Tulum, Quintana Roo
RSF Rancho San Felipe, Puerto Morelos, Quintana Roo
VRC Vallarta Road Control, Puerto Morelos, Quintana Roo
TCH Torrey-Charlton RNA
AND H.J. Andrews Experimental Forest Oregon, Post-1996
CHE Cascade Head Experimental Forest OR (TD027)
HJA H.J. Andrews Experimental Forest Oregon, Pre-1996
NCB North Carolina Botanical Garden, Chapel Hill, NC
PFE Pringle Falls Experimental Forest Oregon
WRE Wind River Experimental Forest Washington
RUS RUSSIAN SITES
TUX Los Tuxtlas Experimental Forest, UNAM, Veracruz, Mexico
WYM Medicine Bow National Forest, Wyoming
YUC Noh Bec, Quintana Roo, Mexico

Enumerated domain for attribute: SPECIES

Codes for SPECIES
Code Description
ABAM Abies amabilis
ABLA Abies lasiocarpa
ACMA Acer macrophyllum
ALIN Alnus incana
ALRU Alnus rubra
ALTE Alnus tenuifolia
BEPE Betula pendula
CADE Calocedrus decurrens
JUVI Juniperus virginiana
PIEN Picea engelmannii
PISI Picea sitchensis
PICO Pinus contorta
PIFL Pinus flexilis
PIPO Pinus ponderosa
POTR Populus tremuloides
PSME Pseudotsuga menziesii
QUGA Quercus garryana
SASP Salix
SASC Salix scouleriana
SOAU Sorbus aucuparia
THPL Thuja plicata
TSHE Tsuga heterophylla
SASA Sapindus saponaria
ABSI Abies sibirica
BRAL Brosimum alicastrum
BUSI Bursera simaruba
CEOB Cecropia obtusifolia
DEAR Dendropanax arboreus
FAGR Fagus grandifolia
FIYO Ficus yoponensis
HEAP Heliocarpus appendiculatus
LASI Larix sibirica
LIST Liquidambar styraciflua
LITU Liriodendron tulipifera
NEAM Nectandra ambigens
PIAB Picea abies
PIEC Pinus echinata
PISY Pinus sylvestris
PITA Pinus taeda
QUAL Quercus alba
SAAL Sassafras albidum
SWMA Swietenia macrophylla
TICO Tilia cordata
QURO Quercus robur
QURU Quercus rubra
GYLU Gymnanthes lucida
GOBA Gonystylus bancanus
CATO Carya tomentosa
OROB Orthion oblanceolatum
PSEL Pseudobombax ellipticum
CORE Coccothrinax readii
CEPE Cecropia peltata
ACRU Acer rubrum
CAPA Carica papaya
SCCU Scwartzia cubensis
SIGL Simaruba glauca
STDO Stemmadenia donnell-smithii
PSOX Pseudolmedia oxyphyllaria
MAZA Manilkara zapota
TAOL Talisia olivaeformis
BEPL Beaucarnea pliabilis
DTRS woody detritus

Enumerated domain for attribute: SIZE

Codes for SIZE
Code Description
08 Diam greater than 6.5 cm, less than 9.5 cm
01 Diam greater than 0.5 cm, less than 1.5 cm
02 Diam greater than 1.5 cm, less than 2.5 cm
04 Diam greater than 3.0 cm, less than 5.0 cm
15 Diam greater than 12 cm, less than 18 cm
.5 Diam less than 0.5 cm
C Composite sample
DW Manufactured dowel

Enumerated domain for attribute: SOURCE

Codes for SOURCE
Code Description
BO Wood sample from bole of tree
BR Wood sample from branch of tree
DW Wood sample is from a manufactured dowel
NN Source of wood sample not noted
AL Bark and Wood not separated

Enumerated domain for attribute: POSITION

Codes for POSITION
Code Description
A Placed on forest floor surface
B Buried below forest floor
S Suspended above forest floor (approx. 1 meter)

Enumerated domain for attribute: REP

Codes for REP
Code Description
M sample for moisture content only
1 first replicate sample
2 second replicate sample
3 third replicate sample
4 fourth replicate sample
5 fifth replicate sample
6 sixth replicate sample
7 seventh replicate sample
8 eighth replicate sample
P pooled sample

Enumerated domain for attribute: STAND_COND

Codes for STAND_COND
Code Description
C Stand 100% CONSUMED by fire in August 1996
P Stand 30% CONSUMED, 60% SCORCHED, 10% UNBURNED by fire in August 1996
S Stand 70% CONSUMED, 25% SCORCHED, 5% UNBURNED by fire in August 1996
U Stand 100% UNBURNED by fire
N Stand condition not noted

Enumerated domain for attribute: COMMENT

Codes for COMMENT
Code Description
Z Weight is truly zero
Q Questionable sample identification
B Broken; possible loss
BF Broken and fragmented
BP Broken and position change
CIW Initial wet weight adjusted
CMC Calculated moisture content
CW Wet weight calculated
DWC Dry weight calculated
F Fragmentation or bark sloughing
X Sample completely decomposed
M Sample missing
O Drying oven fire
P Position alteration
PA Position alteration; aboveground sample
PB Position alteration; belowground sample
PS Position alteration; suspended sample
PTE Position alteration unknown
SS Sub-sampled for dry weight
T Termites
TE Termites entire
U Tag disconnected; id questionable
UP Dowel upright
  No Comment

Enumerated domain for attribute: OUTLIER

Codes for OUTLIER
Code Description
Y Yes, record is flagged as an outlier
N Record is good

Enumerated domain for attribute: EST

Codes for EST
Code Description
N Not estimated
Y Estimated

Enumerated domain for attribute: LAB

Codes for LAB
Code Description
OSU Oregon State University
UNK No Lab

Enumerated domain for attribute: EQN_FORM

Codes for EQN_FORM
Code Description
LAG Modified Chapman-Richards to include lag term: PMR= 1-(1-exp(-k*t])^Lag where PRM is proportion of mass remaining, t is time in years, and k and Lag are the model parameters
SINGLE Single negative exponential: PMR=Int*exp(-k*t) where PMR is proportion of mass remaining, t is time in years, and k is the model parameter
DUAL Dual negative exponential: PMR= P1t0*exp(-k1*t) + (1-P1t0)*exp(-k2*t) where PMR is proportion of mass remaining, P1to is the proportion of part 1 at time zero, t is time in years, and k1 and k2 are the decomposition ra

Enumerated domain for attribute: INTERCEPT_FORCED

Codes for INTERCEPT_FORCED
Code Description
Y Yes, intercept forced
N No, intercept not forced

Enumerated domain for attribute: OVERALL_PV

Codes for OVERALL_PV
Code Description
N P-value not significant (> 0.1)
M P-value moderately significant (0.05-0.1)
S P-value significant (<0.05)
H P-value highly significant (<0.01)