# Soil respiration associated with ectomycorrhizal mats in an old-growth stand along lower Lookout Creek, HJ Andrews Experimental Forest (2008-2009) ## Dataset - **Database Code:** SP033 - **Title:** Soil respiration associated with ectomycorrhizal mats in an old-growth stand along lower Lookout Creek, HJ Andrews Experimental Forest (2008-2009) - **Abstract:** Comparisons of respiration rate and environmental variables for mat and non-mat soil were conducted between July 2008 to Nov 2009 in a 0.1ha plot adjacent lower Lookout Creek, approximately 700m downstream from Lookout Camp (44 deg 13”25’N, 122 deg 15”30’W, 484m above sea level). The predominant overstory species are Psuedotsuga menziesii, Tsuga heterophylla, and Thuja Plicata. Associated ectomycorrhizal communities were measured over the 1.5 year period and data collection for the study is complete. Soil respiration was measured using LiCOR instrumentation, and analyses were performed computationally by correlating soil respiration with known environmental metrics (moisture, temperature, etc.) measured in other studies (TW006, MV001, etc.). - **Keywords:** populations; carbon cycling; soil; fungi; microbes; populations - **Temporal coverage:** 2008-07-01 to 2009-11-30 - **Principal Investigator:** Barbara J Bond ## Data Entities 1. SP03301 2. SP03302 3. SP03303 4. SP03304 ## Entity 1: SP03301 ### Attribute list - **DBCODE** — varchar, enum Database Code - **SP033** — FSDB Database code SP033 - **ENTITY** — numeric(1), range 1.0000 1.0000, number Entity number - **DATE** — datetime, freetext Date of measurement - **RESP_PLOT** — varchar, enum ID for mat and non-mat pair (longterm measurement plot) - **PAIR_01** — Mat/non-mat pair 1 - **PAIR_02** — Mat/non-mat pair 2 - **PAIR_03** — Mat/non-mat pair 3 - **PAIR_04** — Mat/non-mat pair 4 - **PAIR_05** — Mat/non-mat pair 5 - **PAIR_06** — Mat/non-mat pair 6 - **PAIR_07** — Mat/non-mat pair 7 - **PAIR_08** — Mat/non-mat pair 8 - **PAIR_09** — Mat/non-mat pair 9 - **PAIR_10** — Mat/non-mat pair 10 - **PAIR_11** — Mat/non-mat pair 11 - **PAIR_12** — Mat/non-mat pair 12 - **PAIR_07b** — Mat/non-mat pair 7 (new) - **PAIR_07a** — Mat/non-mat pair 7 (old) - **MAT_NON** — varchar, enum Mat or non-mat soil type - **M** — Mat soil type - **N** — Non-mat soil type - **EFFLUX_AVG** — numeric(0.001000), range 0.0000 15.0000, micromoles per square meter per second Average efflux from 2 or 3 measurements in immediate succession - **EFFLUX_SE** — numeric(0.001000), range 0.0000 2.0000, micromoles per square meter per second Standard error of mean - **CO2_AVG** — numeric(0.100000), range 370.0000 512.0000, parts per million Initial CO2 concentration in soil chamber - **TEMP_10CM** — numeric(0.100000), range -10.0000 40.0000, degrees Celsius Soil temperature at 10cm depth - **LOCATION_NOTES** — varchar, freetext Notes regarding relocation of measurement ## Entity 2: SP03302 ### Attribute list - **DBCODE** — varchar, enum Database Code - **SP033** — FSDB Database code SP033 - **ENTITY** — numeric(1), range 2.0000 2.0000, number Entity number - **GWC_AREA** — varchar, enum Coring field area - **AREA_1** — Core field area 1 - **AREA_2** — Core field area 2 - **AREA_3** — Core field area 3 - **AREA_4** — Core field area 4 - **AREA_5** — Core field area 5 - **DATE** — datetime, freetext Date of measurement - **GWC_LITTER** — numeric(1), range 19.4100 340.8400, grams per gram Gravimetric water content of Oi and Oe horizons (g water per g dry soil) - **GWC_5CM** — numeric(1), range 23.7600 98.6500, grams per gram Gravimetric water content 5cm below mineral soil surface (g water per g dry soil) - **GWC_15CM** — numeric(1), range 23.4200 52.0800, grams per gram Gravimetric water content 15cm below mineral soil surface (g water per g dry soil) - **PERC_WC_LITTER** — numeric(1), range 16.0000 77.0000, percent Litter water content expressed as a percent of total weight - **EST_VWC_5CM** — numeric(1), range 17.8200 73.9900, cubic meters per cubic meter Estimated volumetric water content at 5cm using a bulk density of 0.75 - **EST_VWC_15CM** — numeric(1), range 18.2700 143.7700, cubic meters per cubic meter Estimated volumetric water content at 15cm using a bulk density of 0.78 ## Entity 3: SP03303 ### Attribute list - **DBCODE** — varchar, enum Database Code - **SP033** — FSDB Database code SP033 - **ENTITY** — numeric(1), range 3.0000 3.0000, number Entity number - **RESP_PLOT** — varchar, enum ID for mat and non-mat pair (longterm measurement plot) - **PAIR_01** — Mat/non-mat pair 1 - **PAIR_02** — Mat/non-mat pair 2 - **PAIR_03** — Mat/non-mat pair 3 - **PAIR_04** — Mat/non-mat pair 4 - **PAIR_05** — Mat/non-mat pair 5 - **PAIR_06** — Mat/non-mat pair 6 - **PAIR_07** — Mat/non-mat pair 7 - **PAIR_08** — Mat/non-mat pair 8 - **PAIR_09** — Mat/non-mat pair 9 - **PAIR_10** — Mat/non-mat pair 10 - **PAIR_11** — Mat/non-mat pair 11 - **PAIR_12** — Mat/non-mat pair 12 - **PAIR_07b** — Mat/non-mat pair 7 (new) - **PAIR_07a** — Mat/non-mat pair 7 (old) - **GWC_AREA** — varchar, enum Coring field area - **AREA_1** — Core field area 1 - **AREA_2** — Core field area 2 - **AREA_3** — Core field area 3 - **AREA_4** — Core field area 4 - **AREA_5** — Core field area 5 ## Entity 4: SP03304 ### Attribute list - **DBCODE** — varchar, enum Database Code - **SP033** — FSDB Database code SP033 - **ENTITY** — numeric(1), range 4.0000 4.0000, number Entity number - **DATE** — datetime, freetext Date of measurement - **MAT_NON** — varchar, enum Mat or non-mat soil type - **M** — Mat soil type - **N** — Non-mat soil type - **CORE_ID** — varchar, enum ID for soil core (different from respiration plot) - **CORE_01** — Soil core 1 - **CORE_02** — Soil core 2 - **CORE_03** — Soil core 3 - **CORE_04** — Soil core 4 - **CORE_05** — Soil core 5 - **CORE_06** — Soil core 6 - **CORE_07** — Soil core 7 - **CORE_08** — Soil core 8 - **CORE_09** — Soil core 9 - **CORE_10** — Soil core 10 - **DEPTH** — varchar, enum Depth of core - **litter** — Oe,Oi, and Oa layers - **m00** — mineral soil surface to 10cm below - **m10** — 10-20cm below the mineral soil surface - **m20** — 20-35cm below the mineral soil surface - **LITTER_DEPTH** — numeric(0.100000), range 2.4000 17.5000, centimeters Total depth (cm) of Oi, Oe, and Oa layers. - **CORE_AREA** — numeric(0.010000), range 50.2000 78.5000, square centimeters Cross-sectional area of core (cm2) - **CORE_VOL** — numeric(0.010000), range 188.4000 1373.7500, cubic centimeters Total volume of core (cm3) - **SOIL_WET_MASS** — numeric(0.100000), range 20.0000 1170.0000, grams Total mass of field-moist core (g) - **PH** — numeric(0.010000), range 3.8100 6.2600, pH units pH - **GWC** — numeric(0.000100), range 0.3094 1.5659, grams per gram Gravimetric water content (g water/g dry soil) - **PERCENTN** — numeric(0.010000), range 0.1000 1.7300, percent Total nitrogen content, by mass - **PERCENTC** — numeric(0.010000), range 2.1500 48.4100, percent Total carbon content, by mass - **CTON_RATIO** — numeric(0.010000), range 19.5400 67.5900, number Carbon to nitrogen ratio - **FINE_ROOTS** — numeric(0.000100), range 0.1407 3.2688, grams per gram Mass of roots less than 2mm diameter (g water/g dry soil) - **THIN1_ROOTS** — numeric(0.000100), range 0.0000 1.9816, grams per gram Mass of roots 2-4 mm diameter (g water/g dry soil) - **THIN2_ROOTS** — numeric(0.000100), range 0.0000 1.9834, grams per gram Mass of roots 4-6mm diameter (g water/g dry soil) - **THIN3_ROOTS** — numeric(0.000100), range 0.0000 4.1700, grams per gram Mass of roots 6-8mm diameter (g water/g dry soil) - **COARSE_ROOTS** — numeric(0.000100), range 0.0000 21.9900, grams per gram Mass of roots >8mm diameter (g water/g dry soil) - **TOTAL_ROOTS** — numeric(0.000100), range 0.3266 25.2000, grams per gram Total root mass (g water/g dry soil) - **EFFLUX_AVG** — numeric(0.001000), range 2.1340 12.0300, micromoles per square meter per second Average efflux from 2 or 3 measurements in immediate succession - **EFFLUX_SE** — numeric(0.001000), range 0.0780 1.1000, micromoles per square meter per second Standard error of mean - **CO2_AVG** — numeric(0.100000), range 425.0000 546.5000, parts per million Initial CO2 concentration in soil chamber - **TEMP_10CM** — numeric(0.100000), range 12.9000 15.9000, degrees Celsius Soil temperature at 10cm depth ## Attribute Definitions **CO2_AVG** Initial CO2 concentration in soil chamber **COARSE_ROOTS** Mass of roots >8mm diameter (g water/g dry soil) **CORE_AREA** Cross-sectional area of core (cm2) **CORE_ID** ID for soil core (different from respiration plot) **CORE_VOL** Total volume of core (cm3) **CTON_RATIO** Carbon to nitrogen ratio **DATE** Date of measurement **DBCODE** Database Code **DEPTH** Depth of core **EFFLUX_AVG** Average efflux from 2 or 3 measurements in immediate succession **EFFLUX_SE** Standard error of mean **ENTITY** Entity number **EST_VWC_5CM** Estimated volumetric water content at 5cm using a bulk density of 0.75 **EST_VWC_15CM** Estimated volumetric water content at 15cm using a bulk density of 0.78 **FINE_ROOTS** Mass of roots less than 2mm diameter (g water/g dry soil) **GWC** Gravimetric water content (g water/g dry soil) **GWC_5CM** Gravimetric water content 5cm below mineral soil surface (g water per g dry soil) **GWC_15CM** Gravimetric water content 15cm below mineral soil surface (g water per g dry soil) **GWC_AREA** Coring field area **GWC_LITTER** Gravimetric water content of Oi and Oe horizons (g water per g dry soil) **LITTER_DEPTH** Total depth (cm) of Oi, Oe, and Oa layers. **LOCATION_NOTES** Notes regarding relocation of measurement **MAT_NON** Mat or non-mat soil type **PERCENTC** Total carbon content, by mass **PERCENTN** Total nitrogen content, by mass **PERC_WC_LITTER** Litter water content expressed as a percent of total weight **PH** pH **RESP_PLOT** ID for mat and non-mat pair (longterm measurement plot) **SOIL_WET_MASS** Total mass of field-moist core (g) **TEMP_10CM** Soil temperature at 10cm depth **THIN1_ROOTS** Mass of roots 2-4 mm diameter (g water/g dry soil) **THIN2_ROOTS** Mass of roots 4-6mm diameter (g water/g dry soil) **THIN3_ROOTS** Mass of roots 6-8mm diameter (g water/g dry soil) **TOTAL_ROOTS** Total root mass (g water/g dry soil) ## Enumerated Domains ### DBCODE - **SP033** — FSDB Database code SP033 ### RESP_PLOT - **PAIR_01** — Mat/non-mat pair 1 - **PAIR_02** — Mat/non-mat pair 2 - **PAIR_03** — Mat/non-mat pair 3 - **PAIR_04** — Mat/non-mat pair 4 - **PAIR_05** — Mat/non-mat pair 5 - **PAIR_06** — Mat/non-mat pair 6 - **PAIR_07** — Mat/non-mat pair 7 - **PAIR_08** — Mat/non-mat pair 8 - **PAIR_09** — Mat/non-mat pair 9 - **PAIR_10** — Mat/non-mat pair 10 - **PAIR_11** — Mat/non-mat pair 11 - **PAIR_12** — Mat/non-mat pair 12 - **PAIR_07b** — Mat/non-mat pair 7 (new) - **PAIR_07a** — Mat/non-mat pair 7 (old) ### MAT_NON - **M** — Mat soil type - **N** — Non-mat soil type ### GWC_AREA - **AREA_1** — Core field area 1 - **AREA_2** — Core field area 2 - **AREA_3** — Core field area 3 - **AREA_4** — Core field area 4 - **AREA_5** — Core field area 5 ### CORE_ID - **CORE_01** — Soil core 1 - **CORE_02** — Soil core 2 - **CORE_03** — Soil core 3 - **CORE_04** — Soil core 4 - **CORE_05** — Soil core 5 - **CORE_06** — Soil core 6 - **CORE_07** — Soil core 7 - **CORE_08** — Soil core 8 - **CORE_09** — Soil core 9 - **CORE_10** — Soil core 10 ### DEPTH - **litter** — Oe,Oi, and Oa layers - **m00** — mineral soil surface to 10cm below - **m10** — 10-20cm below the mineral soil surface - **m20** — 20-35cm below the mineral soil surface