| 1
CONTACT PERSON |
|
|
1.1
Name |
Douwe
S. Vanderwel |
|
1.2
Address |
Alberta
Agriculture, Food and Rural Development, Conservation and Development
Branch, 206, 7000-113 St., Edmonton, Alberta, T6H 5T6, Canada |
|
1.3
Tel |
+1
403 427 3629 |
|
1.4
Fax |
+1
403 422 0474 |
|
1.5
E-mail |
vanderw@agric.gov.ab.ca |
|
1.6
List other researchers involved: |
Ralph
Wright Andrzej (Andy) Jedrych |
|
|
| 2
WATER EROSION |
|
|
2.1
mm2 - cm2: |
Dynamics
of soil aggregation |
|
2.2
m2: |
soil
surface dynamics:Correlation of tc and WEPP Kr,
Ki values to over 20 soil physical and chemical properties;
physical degradation (surface sealing, crusting) and its impact
on surface roughness, infiltration and runoff |
|
2.3
100m2 - 10 000 m2: |
2
runoff plots < 200 m2. 2 catchment field plots
< 1 ha. Measurement of both Spring snowmelt and Summer rainstorm
driven erosion events. |
|
2.6
other scale or processes investigated: |
Nested
catchment monitoring proposed in boreal forest. |
|
|
| 3
WIND EROSION |
|
|
|
| 4
MASS MOVEMENTS |
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|
|
| 5
TILLAGE EROSION |
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|
|
| 6
TEMPORAL SCALE OF EXPERIMENTS |
|
|
6.1
events: |
Yes |
|
6.2
days: |
Yes |
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6.3
weeks: |
Yes |
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6.4
months: |
Yes |
|
6.5
years: |
Yes |
|
6.6
remarks: |
Precipitation/climate
(1 minute), runoff (10 minutes), sediment (event total). |
|
|
| 7
DESCRIPTION OF EROSION FACTORS STUDIED |
|
|
7.1
Climate: |
Wind,
solar radiation, precipitation (rainfall intensity, snow), humidity,
temperature. |
|
7.2
Topography: |
Complete
topography. |
|
7.3
Soils: |
Soil
moisture (continuous TDR 12 mo.), frost depth (continuous),
soil temperature, bulk density. |
|
7.4
Vegetation: |
Crop,
crop yield biomass, canopy cover, crop residue. |
|
7.5
Management: |
Crop
rotation, cultivation, surface disturbance, tillage equipment. |
|
| 8
FIELD EXPERIMENTS Description of the field site and
of the type of experiments and equipment involved for each of
the erosion processes being studied: |
|
8.1
Erosion process: |
Rill
erosion: introduced flowing water along constructed rills. Hydraulic
and soil parameters measured. Soil detachment due to hydraulic
shear, critical hydraulic shear measured. |
|
8.2
Location (town, state, country): |
25
sites throughout the Province of Alberta. |
|
8.3
Equipment involved: |
Flow
meter, water supply, pumps, rill meters, scales, bottles, survey
equipment. |
|
8.4
Remarks: |
A
comprehensive and extensive field study with excellent results
to date. Measurement of WEPP Kt and tc
parameters. |
|
| 9
LABORATORY EXPERIMENTS Description of the laboratory
and the type of experiments and equipment involved for each
of the erosion processes studied: |
|
Interrill
erosion: 25 soils are tested in a laboratory environment with
a rainfall simulator.
Soil loss is measured. Measurement of the WEPP Ki
parameter. |
|
|
| 10
REMARKS |
|
|
Interrill
erosion is measured in conjunction with rill erosion for soils
throughout the Province of Alberta. |
|
|
| 11
LIST RELEVANT PUBLICATIONS |
|
|
1.
Measuring WEPP rill erodibility parameters (Kr and
tc) in Alberta. C. R. Wright and D. S. Vanderwel,
34th Annual Alberta Soil Science Workshop, Calgary, Alberta.
February 1997.
2. A method
for determining WEPP rill erodibility parameters for use in
water erosion modelling. C. R. Wright and D. S. Vanderwel.
IRMD Applied Research Rep. 1995.
|
