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SP002 – Simplified metadata

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Dataset

Database Code
SP002
Title
Soil Moisture and vegetation cover patterns after logging and burning an old-growth Douglas-fir forest in the Andrews Experimental Forest, 1960-1983
Abstract
This soil moisture study was initiated in 1960 to investigate the effects of patch clearcut logging and slash burning (1962-63) in an old-growth Douglas-fir forest in the Oregon Cascade Range. Since soil moisture and vegetation sampling continued regularly until 1980, this is a unique data set that represents nearly two decades of post-treatment information. Plant cover exerts a profound influence on soil moisture levels through its effects on interception, infiltration, evaporation, and transpiration. In the Douglas-fir forests of the Pacific Northwest, clearcut logging and slash burning are common practices that can dramatically alter plant cover and soil moisture. Logging can increase soil moisture by temporarily reducing cover and associated water use, and burning may further augment soil moisture levels by suppressing the survival and regrowth of vegetation. Indeed, part of the rationale for slash burning in the region is to control shrubs and other vegetation that would otherwise compete with conifer seedlings for available moisture, light, and nutrients. Within a few years after burning, however, invading vegetation may deplete soil moisture to levels comparable to forested areas. Such observations point to the value of long-term information to better understand dynamic soil moisture and plant cover responses to forest practices.
Keywords
interception; water content; trophic structure; soil moisture; water balance; analytical tools; neutron probe; disturbance; evapotranspiration; clearcutting; inorganic nutrients; vegetation; Long-Term Ecological Research (LTER); gavimetric sampling; moisture stress; disturbance; inorganic nutrients
Date begin
1960-04-18
Date end
1983-11-21
Principal Investigator
Alfred B. Levno

Entities

  1. SP00201
  2. SP00202
  3. SP00203
  4. SP00204
  5. SP00205
  6. SP00206

1. SP00201 - Attribute list

SP00201 - attributes
Attribute Type Domain Minimum Maximum Unit
STCODE varchar enum
FORMAT numeric(1.000000) range 1.0000 1.0000 number
SITECODE varchar enum
DATE datetime freetext
DEPTH numeric(0.100000) range 0.5000 3.0000 feet
PLOT1 numeric(0.100000) range 9.6000 63.7000 percent
PLOT2 numeric(0.100000) range 9.4000 66.7000 percent
PLOT3 numeric(0.100000) range 7.7000 61.7000 percent
PLOT4 numeric(0.100000) range 8.6000 62.4000 percent
PLOT5 numeric(0.100000) range 9.9000 50.8000 percent
PLOT6 numeric(0.100000) range 6.9000 48.6000 percent
PLOT8 numeric(0.100000) range 6.9000 57.4000 percent
PLOT9 numeric(0.100000) range 7.8000 66.7000 percent
PLOT10 numeric(0.100000) range 8.6000 61.7000 percent
PLOT11 numeric(0.100000) range 6.6000 52.8000 percent
PLOT12 numeric(0.100000) range 5.7000 48.8000 percent

2. SP00202 - Attribute list

SP00202 - attributes
Attribute Type Domain Minimum Maximum Unit
STCODE varchar enum
FORMAT numeric(1.000000) range 2.0000 2.0000 number
PLOTCODE varchar enum
DATE datetime freetext
STEMP061 numeric(1.000000) range 31.0000 68.0000 degrees Fahrenheit
STEMP062 numeric(1.000000) range 30.0000 67.0000 degrees Fahrenheit
STEMP063 numeric(1.000000) range 30.0000 73.0000 degrees Fahrenheit
STEMP064 numeric(1.000000) range 29.0000 69.0000 degrees Fahrenheit
STEMP065 numeric(1.000000) range 28.0000 64.0000 degrees Fahrenheit
STEMP181 numeric(1.000000) range 31.0000 69.0000 degrees Fahrenheit
STEMP182 numeric(1.000000) range 30.0000 68.0000 degrees Fahrenheit
STEMP183 numeric(1.000000) range 31.0000 72.0000 degrees Fahrenheit
STEMP184 numeric(1.000000) range 30.0000 66.0000 degrees Fahrenheit
STEMP185 numeric(1.000000) range 31.0000 70.0000 degrees Fahrenheit
STEMP361 numeric(1.000000) range 29.0000 65.0000 degrees Fahrenheit
STEMP362 numeric(1.000000) range 29.0000 63.0000 degrees Fahrenheit
STEMP363 numeric(1.000000) range 28.0000 64.0000 degrees Fahrenheit
STEMP364 numeric(1.000000) range 29.0000 61.0000 degrees Fahrenheit
STEMP365 numeric(1.000000) range 34.0000 64.0000 degrees Fahrenheit

3. SP00203 - Attribute list

SP00203 - attributes
Attribute Type Domain Minimum Maximum Unit
STCODE varchar enum
FORMAT numeric(1.000000) range 3.0000 3.0000 number
DATE datetime freetext
TRANS1A numeric(0.010000) range 0.0000 20.8200 inches
TRANS1B numeric(0.010000) range 0.0000 14.3800 inches
TRANS1C numeric(0.010000) range 0.0000 8.4800 inches
TRANS1D numeric(0.010000) range 0.0000 10.5000 inches
TRANS1E numeric(0.010000) range 0.0000 5.9400 inches
TRANS2A numeric(0.010000) range 0.0000 14.9300 inches
TRANS2B numeric(0.010000) range 0.0000 14.8200 inches
TRANS2C numeric(0.010000) range 0.0000 8.8200 inches
TRANS2D numeric(0.010000) range 0.0000 6.9700 inches
TRANS2E numeric(0.010000) range 0.0000 5.6700 inches
CLIMATE2 numeric(0.010000) range 0.0200 144.0000 inches
FORKS numeric(0.010000) range 0.0200 16.6000 inches
MGAGE numeric(0.010000) range 0.0300 16.4000 inches
SITESRG numeric(0.010000) range 0.0000 8.8000 inches

4. SP00204 - Attribute list

SP00204 - attributes
Attribute Type Domain Minimum Maximum Unit
STCODE varchar enum
FORMAT numeric(1.000000) range 4.0000 4.0000 number
YEAR datetime freetext
VEGTYPE varchar enum
SPECIES varchar enum
COVER_8 numeric(0.010000) range 0.0000 41.2800 percent
COVER_9 numeric(0.010000) range 0.0000 72.5000 percent
COVER_10 numeric(0.010000) range 0.0000 66.5000 percent
COVER_11 numeric(0.010000) range 0.0000 45.0000 percent
COVER_12 numeric(0.010000) range 0.0000 75.0000 percent

5. SP00205 - Attribute list

SP00205 - attributes
Attribute Type Domain Minimum Maximum Unit
STCODE varchar enum
FORMAT numeric(1.000000) range 5.0000 5.0000 number
YEAR datetime freetext
PLOT numeric(1.000000) range 8.0000 12.0000 number
PLOTQUAD varchar enum
COVERTYPE varchar enum
COVER1 numeric(1.000000) range 0.0000 100.0000 percent
COVER2 numeric(1.000000) range 0.0000 100.0000 percent
COVER3 numeric(1.000000) range 0.0000 100.0000 percent
COVER4 numeric(1.000000) range 0.0000 100.0000 percent
COVER5 numeric(1.000000) range 0.0000 100.0000 percent
COVER6 numeric(1.000000) range 0.0000 100.0000 percent
COVER7 numeric(1.000000) range 0.0000 100.0000 percent
COVER8 numeric(1.000000) range 0.0000 100.0000 percent
COVER9 numeric(1.000000) range 0.0000 100.0000 percent

6. SP00206 - Attribute list

SP00206 - attributes
Attribute Type Domain Minimum Maximum Unit
STCODE varchar enum
FORMAT numeric(1.000000) range 6.0000 6.0000 number
YEAR datetime freetext
COVERTYPE varchar enum
COVTYPE_8 numeric(0.100000) range 0.0000 99.9000 percent
COVTYPE_9 numeric(0.100000) range 0.0000 100.0000 percent
COVTYPE_10 numeric(0.100000) range 0.0000 94.9000 percent
COVTYPE_11 numeric(0.100000) range 0.0000 99.4000 percent
COVTYPE_12 numeric(0.100000) range 0.0000 95.0000 percent

Attribute definitions

CLIMATE2
Climatic Station #2 raingage
COVER1
Percent cover in microplot 1
COVER2
Percent cover in microplot 2
COVER3
Percent cover in microplot 3
COVER4
Percent cover in microplot 4
COVER5
Percent cover in microplot 5
COVER6
Percent cover in microplot 6
COVER7
Percent cover in microplot 7
COVER8
Percent cover in microplot 8
COVER9
Percent cover in microplot 9
COVERTYPE
Cover type
COVER_8
Percent vegetation cover by species on plot 8
COVER_9
Percent vegetation cover by species on plot 9
COVER_10
Percent vegetation cover by species on plot 10
COVER_11
Percent vegetation cover by species on plot 11
COVER_12
Percent vegetation cover by species on plot 12
COVTYPE_8
Percent cover type in plot 8
COVTYPE_9
Percent cover type in plot 9
COVTYPE_10
Percent cover type in plot 10
COVTYPE_11
Percent cover type in plot 11
COVTYPE_12
Percent cover type in plot 12
DATE
Date of measurement
DEPTH
Soil depth
FORKS
Forks raingage
FORMAT
Entity number
MGAGE
M3 raingage (on M-road as part of early ws 1, 2, 3 rain network)
PLOT
Macro plot number
PLOT1
Moisture content of soil at plot 1
PLOT2
Moisture content of soil at plot 2
PLOT3
Moisture content of soil at plot 3
PLOT4
Moisture content of soil at plot 4
PLOT5
Moisture content of soil at plot 5
PLOT6
Moisture content of soil at plot 6
PLOT8
Moisture content of soil at plot 8
PLOT9
Moisture content of soil at plot 9
PLOT10
Moisture content of soil at plot 10
PLOT11
Moisture content of soil at plot 11
PLOT12
Moisture content of soil at plot 12
PLOTCODE
Specifies if sample from plots 2-6 (forest) or plots 8-12 (clearcut)
PLOTQUAD
Plot quadrant (ne, nw, se, sw)
SITECODE
Site code
SITESRG
On site standard raingage (in plot 11) serves as standard for all soil moist ure plots
SPECIES
Vegetation genus, species acronym according to Garrison et all., 1972
STCODE
Study code
STEMP061
Soil temperature at plot 2 or 8, depth=.5 ft
STEMP062
Soil temperature at plot 3 or 9, depth=.5 ft
STEMP063
Soil temperature at plot 4 or 10, depth=.5 ft
STEMP064
Soil temperature at plot 5 or 11, depth=.5 ft
STEMP065
Soil temperature at plot 6 or 12, depth=.5 ft
STEMP181
Soil temperature at plot 2 or 8, depth=1.5 ft
STEMP182
Soil temperature at plot 3 or 9, depth=1.5 ft
STEMP183
Soil temperature at plot 4 or 10, deplth=1.5 ft
STEMP184
Soil temperature at plot 5 or 11, depth=1.5 ft
STEMP185
Soil temperature at plot 6 or 12, depth=1.5 ft
STEMP361
Soil temperature at plot 2 or 8, depth=3.0 ft
STEMP362
Soil temperature at plot 3 or 9, depth=3.0 ft
STEMP363
Soil temperature at plot 4 or 10, depth=3.0 ft
STEMP364
Soil temperature at plot 5 or 11, depth=3.0 ft
STEMP365
Soil temperature at plot 6 or 12, depth=3.0 ft
TRANS1A
Forest raingage A
TRANS1B
Forest raingage B
TRANS1C
Forest raingage C
TRANS1D
Forest raingage D
TRANS1E
Forest raingage E
TRANS2A
Clearcut raingage A
TRANS2B
Clearcut raingage B
TRANS2C
Clearcut raingage C
TRANS2D
Clearcut raingage D
TRANS2E
Clearcut raingage E
VEGTYPE
Vegetation type
YEAR
Year of survey

Enumerated domains

Enumerated domain for attribute: STCODE

Codes for STCODE
Code Description
SP002 FSDB Database Study Code

Enumerated domain for attribute: SITECODE

Codes for SITECODE
Code Description
WS03 Andrews watershed 3: clearcut L141, forest NW of L141

Enumerated domain for attribute: PLOTCODE

Codes for PLOTCODE
Code Description
1 Plots 2-6, in forest
2 Plots 8-12, in clearcut

Enumerated domain for attribute: VEGTYPE

Codes for VEGTYPE
Code Description
1 Herbaceous
2 Woody

Enumerated domain for attribute: SPECIES

Codes for SPECIES
Code Description
ACCI Acer circinatum
ANMA Anaphalis margaritacea
ANDE Anemone deltoidea
BENE Berberis nervosa
CESA Ceanothus sanguineus
CEVE Ceanothus velutinus
CIRSI Cirsium
CIAR Cirsium arvense
CIBR Cirsium brevifolium
CIVU Cirsium vulgare
COLA Coptis laciniata
COCA Cornus canadensis
CONU Cornus nuttallii
COCO Cotula coronopifolia
DIFO Dicentra formosa
EPILO Epilobium
EPMI Epilobium minutum
EPPA Epilobium paniculatum
EPWA Epilobium watsonii
FEOC Festuca occidentalis
FRSP Frasera speciosa
GATR Galium triflorum
GASH Gaultheria shallon
HIAL Hieracium albiflorum
HODI Holodiscus discolor
HYPE Hypericum perforatum
LIBO Listera borealis
LOMI Lotus micranthus
LUCO Luzula comosa
MAMA Madia madioides
POMU Polystichum munitum
PSME Pseudotsuga menziesii
RHPU Rhamnus purshiana
RHMA Rhododendron macrophyllum
RISA Ribes sanguineum
RULE Rubus leucodermis
RUPA Rubus parviflorus
RUUR Rubus ursinus
SAMBU Sambucus
SESY Senecio sylvaticus
TABR Taxus brevifolia
TRLA Trifolium latifolium
TROV Trillium ovatum
TSHE Tsuga heterophylla
VAPA Vaccinium parvifolium
WHMO Whipplea modesta
CACH Castanopsis chrysophylla
EPAN Epilobium angustifolium
GNMI Gnaphalium microcephalum
GRAMIN Gramin

Enumerated domain for attribute: PLOTQUAD

Codes for PLOTQUAD
Code Description
NE Northeast quadrant of plot
NW Northwest quadrant of plot
SE Southeast quadrant of plot
SW Southwest quadrant of plot

Enumerated domain for attribute: COVERTYPE

Codes for COVERTYPE
Code Description
BG Bare ground
LI Litter
LO Logs
MO Moss
SL Slash
SO Stones
SU Stumps
UN Unknown = % cover of herbaceous and some woody species on microplot (1964 - 1967 only) - probably best to recategorize as 'litter'.