In order to meet the requirements for representativity and homogeneity, both in soil structure and vegetation, lysimeters should not be too small in size (surface >3 m 2 , depth > 1 m ) . Thus, lysimeters require rather a high capital input upon installation and further, to obtain valid research results, important maintenance efforts as well. (Suppliers: AC) Potential Evaporation Evaporation from a free water surface Potential Evapotranspiration: Maximum water loss from ab bsurface covered with vegetation, when water supply to the
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