1
Contact person |
|
1.1
Name |
n
Hab.dr. B. Jankauskas |
|
1.2
Address |
Kaltinenai
Research Station, LT 5926, Kaltinenai. Distr. Silale, Lithuania |
|
1.3
Tel |
+370
69 57254 |
|
1.4
Fax |
+370
69 57242 |
|
1.5
Email |
|
|
1.6
Other researchers involved: |
G
Jankauskiene |
|
2
Survey Details |
|
2.1
Dates of erosion monitoring survey: |
monitoring
survey:1982-1988, 1995-2000 |
|
2.1
Water/wind erosion? |
Water |
|
2.3
Area monitored: |
Western
Lithuania, Upland -emai-iai, Distr. Silale, Village Gineikiai. |
|
2.4
Character of area: |
Downy
(hilly-rolling) relief; eroded soddy-podzolic sandy loam soil,
arable land. Uniform slopes of: A - 2-5; B - 5-10 and C - 10-14
degrees. Cool - humid temperate oceanic - continental climate. |
|
2.5
Frequency of monitoring: |
a)
soil moved is determined every spring and in summer depending
on rainfall (downpour) frequency, b) agrophysical and agrochemical
features are determined every six year period. |
|
2.6
What fraction of fields in the monitored area were included
in the survey? |
Only
slopes: 2-5, 5-10 and 10-14 degrees. |
|
2.7
How were estimates of erosion made? |
a)
by measurement of volume of rills, b) by analysis of soil samples. |
|
2.8
Were air photographs used? |
Not
available. |
|
2.9
For each erosion site, information recorded: |
Location:
A - West slope (down), B - South slope (down), C - North (24
sites) and South(8 sites) slopes. Contributing area: A - 1.15
ha (32 sites at 0.036 ha each), B - 0.58 ha (32 sites at 0.018
ha each), C - 1.01 ha (24 sites at 0.036 ha each and 8 sites
at 0.018 ha each).
Slope length: A - 100 m, B - 50 m, C - 24 sites at 100 m and
8 sites at 50 m.
Gradient: A - 2-5, B - 5-10, C - 10-14 degrees.
Slope shape - convex form at all sites.
Erosion form - water erosion from slopes. Volume - m3
Crop type: 16 sites under field crop rotation*, 24 sites under
grain - grass crop rotation*, 24 sites under grass - grain I
(with Clover - Timothy - C+T) crop rotation* 24 sites under
grass - grain II (with Orchard grass - red fescue grass - O+F)
crop rotation*, and 8 sites under long-term grass stand*.
Soil type - soddy podzolic.
Management factor - usual management for each of crops. |
|
2.10
Data obtained from elsewhere: |
Rainfall
and water of snow thawing responsible for erosion. Some soil
samples taken and analysed. |
|
2.11
Data calculated from above information: |
Erosion
rate (m3/ha and t/ha according to dry bulk density
of soil |
|
2.12
Meterological station density and type: |
Post
of measurement of volume of precipitations (rain gauge) c. 1
km from area and Meteorological station c. 15 km from area. |
|
2.13
Length of record of meterological data: |
Rain
gauge post from 1976. Meteorological station from 1925. |
|
3.
Associated Work |
|
3.1
Associated experimental or plot-based work: |
None |
|
3.2
Associated modelling work: |
None |
|
4.
Documentation |
|
4.1
Published reports of the monitoring survey and/or results: |
|
Jankauskas,
B. and Jankauskiene, G. (1990). Erosion - preventative crop
rotations on hilly sandy loam soils of -emai-iai upland. The
report of research work 1982-1988. Kaltinenai, 1-87. (In Lithuanian).
Jankauskas,
B. (1990). Soil protection from erosion. Vilnius. 1-85. (In
Lithuanian).
Jankauskas,
B., Jankauskiene, G. (1993). The erosion - preventative crop
rotations in hilly upland of Western Lithuania. Baltic region:
Agriculture in acid soils. Vilnius. 232-235. (In English).
Jankausjas,
B., Jankauskiene, G. (1995). Perennial grasses in composition
of different erosion - preventative crop rotations. Proceedings
of NJF seminar no. 245: "The use of catch or cover crops
to reduce leaching and erosion". Knivsta, Sweden. 219-224.
(In English).
Jankauskas,
B. (1994). Soil erosion and agrarian erosion control measures.
The work of doctor habilitatis. Dotnuva. 1-116. (In Lithuanian).
Summary in English (80-102) and in Russian (102-106).
|
|
|
4.2
Other relevant publications: |
|
Jankauskas,
B. and Jankauskiene, G. (1988). To make more exact the projects
of crop rotations. Journal "Agriculture" no. 9. 11-12
(In Lithuanian).
Jankauskas,
B. and Jankauskiene, G. (1990). The erosion - preventative
crop rotations for hilly fields of -emai-iai upland. Proceedings
of scientific works conference of Agriculture Institute,.
Vilnius. 11-13. (In Lithuanian).
Jankauskas,
B. and Jankauskiene, G. (1992). Farming mode and soil erosion.
Scientific - technical information. April-June, 3-4. (In Lithuanian).
Jankauskas,
B. and Jankauskiene, G. (1989). Influence on degree of erosion
of soil to fertilizing of crops. Intensification of agriculture
and her influence to ecology. Minsk. 30-32. (In Russian).
Jankauskas,
B. (1990). Steepness of slopes - degree of erosion - fertilizing
of crops. Dissection of relief and problems of crops fertility.
Vilnius. 68-70. (In Russian).
|
|
5.
Availability |
|
5.1
Erosion/land use data: |
On
request subject to GCTE policy. |
|
5.2
Meterological data: |
On
request. |
6.
Other Information |
|
6.1
Is the monitoring survey ongoing? |
No |
|
6.2
Funding agency for the survey: |
Lithuanian
Agricultural Institute. |
|
6.3
Any other details: |
*
Crop rotations |
|
Field: |
Grain-grass: |
Grass-grin
I: |
Grass-grain
II: |
1.
Rye |
1.
Rye |
1.
Rye |
1.
Rye |
2.
Potatoes |
2.
Barley |
2.
Barley |
2.
Barley |
3.
Barley |
3.
Barley |
3.
C+T, I y.u.** |
3.
O+F, I y.u.** |
4.
Barley |
4.
Barley |
4.
C+T, II y.u. |
4.
O+F, II y.u. |
5.
C+T, Iy.u.** |
5.
C+T, I y.u.** |
5.
C+T, III y.u. . |
5.
O+F, III y.u |
6.
C+T, II y.u. |
6.
C+T, II y.u. |
6.
C+T, IV y.u. |
6.
O+F, IV y.u. |
Instead
of field crop rotation long-term grass stand was grown on
slope of 10-14 degrees (8 sites). ** year's use.
|