# Respiration patterns of logs in the Pacific Northwest, 1986-1996 ## Dataset - **Database Code:** TD020 - **Title:** Respiration patterns of logs in the Pacific Northwest, 1986-1996 - **Abstract:** To examine the seasonal and successional patterns of respiration losses for four species (Abies amabilis, Pseudotsuga menziesii, Thuja plicata, Tsuga heterophylla), and two positions (top and side). Periodically this set of logs is examined for respirations rates. - **Keywords:** temporal properties; seasonality; respiration; decomposition; detritus; coarse woody debris; organic matter; Long-Term Ecological Research (LTER); organic matter - **Temporal coverage:** 1986-01-10 to 1996-09-30 - **Principal Investigator:** Mark E. Harmon ## Data Entities 1. TD02001 2. TD02002 3. TD02003 4. TD02004 ## Entity 1: TD02001 ### Attribute list - **DATACODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 1.0000 1.0000, number Entity number - **YEAR** — datetime, freetext Year that measurement was taken - **DAY** — datetime, freetext Day that measurement was taken expressed as a julian day - **SITE** — numeric(1.000000), range 1.0000 6.0000, number Site number (same sites as in database TD14) - **LOG** — numeric(1.000000), range 5.0000 505.0000, number Log that measurement was taken from refers to same logs as the log decay experiment - **POSITION** — varchar, enum Chamber position on logs; t=chamber on log top, s=chamber on log side - **T** — TOP OF LOG RESPERATION CHAMBER POSITION - **S** — SIDE OF LOG RESPERATION CHAMBER POSITION - **ENDVOL** — numeric(0.001000), range 0.0000 250.0000, milliliters Method change during study, see notes in TD20.abs - **STARTVOL** — numeric(0.001000), range 0.0000 250.0000, milliliters Method change during study, see notes in TD20.abs ## Entity 2: TD02002 ### Attribute list - **DATACODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 2.0000 2.0000, number Entity number - **SITE** — numeric(1.000000), range 1.0000 6.0000, number Site number (same sites as in database TD14) - **HOURSTAR** — numeric(1.000000), range 0.0000 1800.0000, time in military hours and minutes Hour and minutes that measurement started based on 24 hour clock hhmm - **YEARSTAR** — datetime, freetext Year that measurement started - **DAYSTART** — datetime, freetext Julian day that measurement started - **HOUREND** — numeric(1.000000), range 0.0000 1710.0000, time in military hours and minutes Hour and minutes that measurement ended 24 hour clock - **YEAREND** — datetime, freetext Year that measurement ended - **DAYEND** — datetime, freetext Julian day that measurement ended - **ENDVOL** — numeric(0.001000), range 0.0000 248.4350, milliliters Method change during study, see notes in TD20.abs - **STARTVOL** — numeric(0.001000), range 0.0000 248.3400, milliliters Method change during study, see notes in TD20.abs - **TEMP1** — numeric(0.100000), range -1.3000 24.9000, degrees Celsius Mean air temperature the day before the measurement was taken - **TEMP2** — numeric(0.100000), range -0.9000 25.6000, degrees Celsius Mean air temperature the day the measurement was taken - **TEMP3** — numeric(0.100000), range -0.9000 25.0000, degrees Celsius Mean air temperature the second day the measurement was taken ## Entity 3: TD02003 ### Attribute list - **DATACODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 3.0000 3.0000, number Entity number - **YEAR** — datetime, freetext Year that measurement was taken - **DAY** — datetime, freetext Day that measurement was taken expressed as a julian day - **SITE** — numeric(1.000000), range 1.0000 6.0000, number Site number (same sites as in database TD14) - **LOG** — numeric(1.000000), range 5.0000 505.0000, number Log that measurement was taken from refers to same logs as the log decay experiment - **POSITION** — varchar, enum Chamber position on logs; t=chamber on log top, s=chamber on log side - **T** — TOP OF LOG RESPERATION CHAMBER POSITION - **S** — SIDE OF LOG RESPERATION CHAMBER POSITION - **ENDWGHT** — numeric(0.001000), range 0.0000 248.2300, grams End dry weight of sodalime - **STRTWGHT** — numeric(0.001000), range 0.0000 248.0400, grams Starting dry weight of sodalime ## Entity 4: TD02004 ### Attribute list - **DATACODE** — varchar, freetext Database code - **FORMAT** — numeric(1.000000), range 4.0000 4.0000, number Entity number - **SITE** — numeric(1.000000), range 1.0000 6.0000, number Site number (same sites as in database TD14) - **HOURSTAR** — numeric(1.000000), range 544.0000 1702.0000, time in military hours and minutes Hour and minutes that measurement started based on 24 hour clock hhmm - **YEARSTAR** — datetime, freetext Year that measurement started - **DAYSTART** — datetime, freetext Julian day that measurement started - **HOUREND** — numeric(1.000000), range 545.0000 1640.0000, time in military hours and minutes Hour and minutes that measurement ended 24 hour clock - **YEAREND** — datetime, freetext Year that measurement ended - **DAYEND** — datetime, freetext Julian day that measurement ended - **ENDWGHT** — numeric(0.001000), range 238.1200 248.3050, grams End dry weight of sodalime - **STRTWGHT** — numeric(0.001000), range 237.9750 248.1650, grams Starting dry weight of sodalime ## Attribute Definitions **DATACODE** Database code **DAY** Day that measurement was taken expressed as a julian day **DAYEND** Julian day that measurement ended **DAYSTART** Julian day that measurement started **ENDVOL** Method change during study, see notes in TD20.abs **ENDWGHT** End dry weight of sodalime **FORMAT** Entity number **HOUREND** Hour and minutes that measurement ended 24 hour clock **HOURSTAR** Hour and minutes that measurement started based on 24 hour clock hhmm **LOG** Log that measurement was taken from refers to same logs as the log decay experiment **POSITION** Chamber position on logs; t=chamber on log top, s=chamber on log side **SITE** Site number (same sites as in database TD14) **STARTVOL** Method change during study, see notes in TD20.abs **STRTWGHT** Starting dry weight of sodalime **TEMP1** Mean air temperature the day before the measurement was taken **TEMP2** Mean air temperature the day the measurement was taken **TEMP3** Mean air temperature the second day the measurement was taken **YEAR** Year that measurement was taken **YEAREND** Year that measurement ended **YEARSTAR** Year that measurement started ## Enumerated Domains ### POSITION - **T** — TOP OF LOG RESPERATION CHAMBER POSITION - **S** — SIDE OF LOG RESPERATION CHAMBER POSITION