Purpose of this facility |
Research on water movement and nutrient transport in the
unsaturated zone under arable land with natural cultivation;
hydrochemical analyses; isotopes studies; to calibrate water
and nutrient transport models; crop water requirement and
plant nutrition; climate change effects; comparison of organic
farming to conventional low input farming to determine groundwater
protective tillage |
Lysimeter type |
WEIGHABLE MONOLITHIC FIELD LYSIMETER/SOIL HYDROLOGY MEASURING
SITE |
Operating since |
2004 |
Number of lysimeters |
2 |
Size classification |
standard |
Exact size |
1 mē x 2 m depth, cylindrical |
Building material of container |
Stainless steel; mobile ring on top |
Material/feature of lysimeter bottom |
Filter gravel layer with suction cups |
Lysimeter cellar (material) |
Concrete |
suction-controlled lysimeter |
yes |
Weighing equipment |
Balances installed under lysimeters; precision 0.05 mm |
Seepage water determination |
Suction cups; Weighing |
Nutrients/nutrient balances |
N, NO3 balances |
Soil fraction(s) |
Loamy sand |
Soil type |
Dystric Cambisol |
Soil thickness in m |
0.7/1.1 |
Vegetation and cultivation |
Arable land/field |
Probes installed |
Tensiometers, gypsum blocks, suction cups, TDR, sensors
for soil temperature |
Data logger; server, data base |
yes |
Other details (data formats etc.) |
Probes installed in lysimeter vessels and in undisturbed
soil profile in 4 depths; in vessel: also geophysical probes |
Modelling |
Water balance, nutrient transport with: HYDRUS, STOTRASIM,
CANDY, COUPMODEL, CROPSYST |
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about this site (location, meteorological parameters, etc.) |