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SP014 – Simplified metadata

← Back to SP014 detail

Dataset

Database Code
SP014
Title
Seasonal soil respiration using permanent gas chambers in the Andrews Experimental Forest, 1994-1996
Abstract
The overall objective of this study is to model CO emissions from forest soils of the H. J. Andrews Experimental Forest. The data to develop this model was obtained by measuring forest floor respiration rates in permanent chambers located along transects at permanent gas flux study sites.
Keywords
meteorology; soil respiration; respiration; inorganic nutrients; organic matter; forest floor; old growth forests; Long-Term Ecological Research (LTER); inorganic nutrients; organic matter
Date begin
1994-11-01
Date end
1996-11-01
Principal Investigator
Robert P. Griffiths

Entities

  1. SP01401

1. SP01401 - Attribute list

SP01401 - attributes
Attribute Type Domain Minimum Maximum Unit
DBCODE varchar enum
ENTITY numeric(1.000000) range 1.0000 1.0000 number
SITE varchar enum
DATE datetime freetext
SAMPLE varchar freetext
RESP numeric(0.001000) range -36.7400 127.6100 grams per square meter per day
SOILTEMP numeric(0.100000) range 0.1000 25.3000 degrees Celsius
P_MOIST numeric(0.010000) range 11.0000 264.6000 percent
H2OVOLUM numeric(0.001000) range 0.0510 1.3270 milliliters per cubic centimeter
BULKDENS numeric(0.001000) range 0.1270 1.0330 grams per cubic centimeter
MOISOURC varchar enum

Attribute definitions

BULKDENS
Bulk density of soils at site-cores taken next to each incubatoin chamber
DATE
Date sample was colleted
DBCODE
FSDB Database code
ENTITY
Entity number
H2OVOLUM
Volume of water per volume of sample
MOISOURC
Method of measureing water volume in soils
P_MOIST
Percent moisture (wet-dry/dry)x100
RESP
Respiration rate-control (grams of C per square meter per day)
SAMPLE
Location along transect where sample was taken
SITE
Permanent trace gas sites
SOILTEMP
Mean of instantaneous soil temperatures taken at the start and end of field

Enumerated domains

Enumerated domain for attribute: DBCODE

Codes for DBCODE
Code Description
SP014 FSDB Database Code SP014

Enumerated domain for attribute: SITE

Codes for SITE
Code Description
10C Mid-elevation (south slope)
10V Low-elevation clear-cut; succession study site
11C Riparian area
11V Mid-elevation young stand
12C Mid-elevation clear-cut
12VC Mid-elevation old-growth control for 11v, 12c
1C 1v control + high hot dry mc
1V High hot dry microclimate (mc)
2C North facing
2V North facing clear cut (mid-elevation)
2VC Control for 2v and 3v
3C Valley site near stream (no slope)
3V 15-year-old doug-fir stand
4C Cool-wet high elevation (north slope), control for 6v
4V 35-year-old doug-fir stand
4VC Control for 4v
5C Site similar to 3c but higher
5V Big-leaf maple site
5VC Control for 5v
6C High-moisture site (north facing)
6V Sitka-alder veg site
7C Moisture mid-elevation (north facing veg site)
7V Mid-elevation, north slope, young stand
8C High dry hot site (south facing ridge top)
8V Low-elevation young stand at hq site (same as site ys)
9C Low elevation (north slope) cool moisture
9V Low-elevation clear-cut at hq site (same as site cc)
9VC Low-elevation old-growth at hq site (same as site og)
CC Clear-cut at hja headquarters site (same as site 9v)
OG Old-growth at hja headquarters site (same as site 9vc)
YS Young stand at hja headquarters site (same as site (8v)

Enumerated domain for attribute: MOISOURC

Codes for MOISOURC
Code Description
No method used to measure water volume
1 Water volume measured gravimetrically
2 Water volume measured with a time domain refractometer (tdr)