# Moisture content of logs from the Andrews Experimental Forest, 1985-1988 ## Dataset - **Database Code:** TD026 - **Title:** Moisture content of logs from the Andrews Experimental Forest, 1985-1988 - **Abstract:** The purpose of this study is to test the effect of log species and decomposition on the moisture content and water stores in logs. - **Keywords:** water content; bulk density; coarse woody debris; organic matter; water; logs; Long-Term Ecological Research (LTER); organic matter - **Temporal coverage:** 1985-01-09 to 1988-11-30 - **Principal Investigator:** Mark E. Harmon ## Data Entities 1. TD02601 2. TD02602 3. TD02603 4. TD02604 ## Entity 1: TD02601 ### Attribute list - **STCODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 1.0000 1.0000, number Entity number - **DAY** — datetime, freetext Day sample was taken - **MONTH** — datetime, freetext Month sample was taken - **YEAR** — datetime, freetext Year sample was taken - **SITE** — numeric(1.000000), range 1.0000 6.0000, number Site of log - **LOGNUM** — numeric(1.000000), range 1.0000 9999.0000, number Log number - **SPECIES** — varchar, enum Species of log - **ABAM** — Abies amabilis - **PSME** — Pseudotsuga menziesii - **THPL** — Thuja plicata - **TSHE** — Tsuga heterophylla - **EXC** — varchar, enum Indicates if log was under an insect exclosure - **E** — INSIDE EXCLOSURE - **O** — OUTSIDE EXCLOSURE - **TYPE** — varchar, enum Tissue type - **H** — HEARTWOOD - **I** — INNER BARK - **O** — HEARTWOOD - **S** — SAPWOOD - **WETWT** — numeric(0.001000), range 0.0050 99.0000, grams Wet weight of the sample - **DRYWT** — numeric(0.001000), range 0.0050 99.0000, grams Dry weight of sample. determined after 4 days at 55 c - **MOIST** — numeric(0.001000), range 5.0000 600.0000, percent Field moisture content, water weight/dry weight basis - **EST** — varchar, enum Moisture content was estimated. used in cases where sample could not be taken or was obviously wrong - **E** — VALUE ESTIMATED ## Entity 2: TD02602 ### Attribute list - **STCODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 2.0000 2.0000, number Entity number - **STID** — varchar, enum Study area where density was determined - **HJA** — H. J. ANDREWS EXPERIMENTAL FOREST, OREGON - **DAY** — datetime, freetext Day sample was taken - **MONTH** — datetime, freetext Month sample was taken - **YEAR** — datetime, freetext Year sample was taken - **SITE** — numeric(1.000000), range 1.0000 6.0000, number Site of log - **LOGNUM** — numeric(1.000000), range 1.0000 9999.0000, number Log number - **SPECIES** — varchar, enum Species of log - **ABAM** — Abies amabilis - **PSME** — Pseudotsuga menziesii - **THPL** — Thuja plicata - **TSHE** — Tsuga heterophylla - **OBWATER** — numeric(0.001000), range 0.0000 200.0000, kilograms Mass of water stored in outer bark - **IBWATER** — numeric(0.001000), range 0.0000 200.0000, kilograms Mass of water stored in inner bark - **SAPWATER** — numeric(0.001000), range 0.0000 1000.0000, kilograms Mass of water stored in sapwood - **HWATER** — numeric(0.001000), range 0.0000 500.0000, kilograms Mass of water stored in heartwood - **TWATER** — numeric(0.001000), range 0.0000 2000.0000, kilograms Mass of water stored in entire log-all tissues combined - **TMOIST** — numeric(0.100000), range 0.0000 500.0000, percent Overall moisture content of log - **OBMASS** — numeric(0.001000), range 0.0000 500.0000, kilograms Dry mass of outer bark for log - **IBMASS** — numeric(0.001000), range 0.0000 500.0000, kilograms Dry mass of inner bark for the log - **SAPMASS** — numeric(0.001000), range 0.0000 500.0000, kilograms Dry mass of sapwood for the log - **HMASS** — numeric(0.001000), range 0.0000 500.0000, kilograms Dry mass of heartwood for the log - **TMASS** — numeric(0.001000), range 0.0000 700.0000, kilograms Dry mass of entire log ## Entity 3: TD02603 ### Attribute list - **STCODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 3.0000 3.0000, number Entity number - **STID** — varchar, enum Study area where density was determined - **HJA** — H. J. ANDREWS EXPERIMENTAL FOREST, OREGON - **TIME_D** — numeric(1.000000), range 0.0000 3000.0000, number of days Number of days that tissues were exposed to decay - **TYPE** — varchar, enum Tissue type - **H** — HEARTWOOD - **I** — INNER BARK - **O** — HEARTWOOD - **S** — SAPWOOD - **SPECIES** — varchar, enum Species of log - **ABAM** — Abies amabilis - **PSME** — Pseudotsuga menziesii - **THPL** — Thuja plicata - **TSHE** — Tsuga heterophylla - **DENSITY** — numeric(0.001000), range 0.0500 0.6000, grams per square centimeter Density of tissue; oven dry weight/green volume basis ## Entity 4: TD02604 ### Attribute list - **STCODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 4.0000 4.0000, number Entity number - **SPECIES** — varchar, enum Species of log - **ABAM** — Abies amabilis - **PSME** — Pseudotsuga menziesii - **THPL** — Thuja plicata - **TSHE** — Tsuga heterophylla - **TYPE** — varchar, enum Tissue type - **H** — HEARTWOOD - **I** — INNER BARK - **O** — HEARTWOOD - **S** — SAPWOOD - **DECAY** — varchar, enum Type of decay in sample - **B** — BROWN ROT - **D** — DECAYED - **F** — FRESH; FROM A LIVE TREE - **S** — SOUND; UNDECAYED - **W** — WHITE ROT - **TIME** — numeric(1.000000), range 0.0000 10.0000, number Number of years the tissue has been exposed to decay - **DRYWT7** — numeric(0.001000), range 0.3000 50.0000, grams Dry weight after being in 55c oven for 7 days or until mass is stable - **MAXWETWT** — numeric(0.001000), range 1.5000 100.0000, grams Maximum wet weight of water soaked sample - **MAXMOIST** — numeric(0.100000), range 50.0000 900.0000, percent Maximum moisture content, water weight/dry weight basis - **DENSITY** — numeric(0.001000), range 0.0500 0.6000, grams per square centimeter Density of tissue; oven dry weight/green volume basis ## Attribute Definitions **DAY** Day sample was taken **DECAY** Type of decay in sample **DENSITY** Density of tissue; oven dry weight/green volume basis **DRYWT** Dry weight of sample. determined after 4 days at 55 c **DRYWT7** Dry weight after being in 55c oven for 7 days or until mass is stable **EST** Moisture content was estimated. used in cases where sample could not be taken or was obviously wrong **EXC** Indicates if log was under an insect exclosure **FORMAT** Entity number **HMASS** Dry mass of heartwood for the log **HWATER** Mass of water stored in heartwood **IBMASS** Dry mass of inner bark for the log **IBWATER** Mass of water stored in inner bark **LOGNUM** Log number **MAXMOIST** Maximum moisture content, water weight/dry weight basis **MAXWETWT** Maximum wet weight of water soaked sample **MOIST** Field moisture content, water weight/dry weight basis **MONTH** Month sample was taken **OBMASS** Dry mass of outer bark for log **OBWATER** Mass of water stored in outer bark **SAPMASS** Dry mass of sapwood for the log **SAPWATER** Mass of water stored in sapwood **SITE** Site of log **SPECIES** Species of log **STCODE** Database code **STID** Study area where density was determined **TIME** Number of years the tissue has been exposed to decay **TIME_D** Number of days that tissues were exposed to decay **TMASS** Dry mass of entire log **TMOIST** Overall moisture content of log **TWATER** Mass of water stored in entire log-all tissues combined **TYPE** Tissue type **WETWT** Wet weight of the sample **YEAR** Year sample was taken ## Enumerated Domains ### SPECIES - **ABAM** — Abies amabilis - **PSME** — Pseudotsuga menziesii - **THPL** — Thuja plicata - **TSHE** — Tsuga heterophylla ### EXC - **E** — INSIDE EXCLOSURE - **O** — OUTSIDE EXCLOSURE ### TYPE - **H** — HEARTWOOD - **I** — INNER BARK - **O** — HEARTWOOD - **S** — SAPWOOD ### EST - **E** — VALUE ESTIMATED ### STID - **HJA** — H. J. ANDREWS EXPERIMENTAL FOREST, OREGON ### DECAY - **B** — BROWN ROT - **D** — DECAYED - **F** — FRESH; FROM A LIVE TREE - **S** — SOUND; UNDECAYED - **W** — WHITE ROT