Modeling of the land management influence on soil water budget for the case of heavy soils in depression

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Title:Modeling of the land management influence on soil water budget for the case of heavy soils in depression
Creators:
Zaradny, Henryk; H dot Zaradny at ibwpan dot gda dot pl; Institute of Hydro-Engineering of the Polish Academy of Sciences, ul. Kościerska 7, 80-953 Gdańsk, Poland; Tel.: +48-58-552-20-11; fax: +48-58-552-42-11
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 54, 1, pp. 26-42
Uncontrolled Keywords:Water Flow, Water Uptake by Plants, Farmers' Activities, Two-Dimensional Mathematical Model

Abstract

In the paper the results of measurements and two dimensional mathematical simulation for polder in the depression for 1996 are presented. The mathematical model takes into account hydraulics conductivity of soils in form of tensors, water uptake by plants and elastic capacity of soils. In the last decade in Poland many hectares of field culture changed not only ownership, but also the manner in which it was farmed. It also refers to polders with compound soil profiles and complex water conditions. Often in such areas, alluvial soils and relatively high water tables occur. These conditions are preferred in grassland as opposed to arable land farming. Very often these rules are forgotten by new farmers or they stop farming or they use their land for other activities due to bad crop yield; turning it to – for example –grasses and weeds from mowed ditches and dikes store. This causes conflicts between farmers and the holder of the melioration system or the water reservoir in the vicinity. An example of such a situation is a small polder where soil water conditions are influenced by the reservoir with retained water levels between about 0 – 1.5 m above the surface of the surrounding land. It is concluded that if the beginning of the vegetation season (April) is wet, the moisture conditions are unfavourable for crop production. But if April is dry, then even if the rest of the season is wet, the moisture conditions will be satisfactory. This conclusion was derived from presented results of simulation. It is true only if farmers’ activities are responsible and rational for such soil and water conditions.

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Title:Modeling of the land management influence on soil water budget for the case of heavy soils in depression
Translated title:Modelovanie vplyvu hospodárenia na vodnú bilanciu ťažkých pôd v pôdnych depresiách
Creators:
Zaradny, Henryk; H dot Zaradny at ibwpan dot gda dot pl; Institute of Hydro-Engineering of the Polish Academy of Sciences, ul. Kościerska 7, 80-953 Gdańsk, Poland; Tel.: +48-58-552-20-11; fax: +48-58-552-42-11
Uncontrolled Keywords:Water Flow, Water Uptake by Plants, Farmers' Activities, Two-Dimensional Mathematical Model
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:54
Number:1
Page Range:pp. 26-42
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:5903
Item Type:Article
Deposited On:08 Jun 2010 16:48
Last Modified:08 Jun 2010 14:48

Citation

Zaradny, Henryk (2006) Modeling of the land management influence on soil water budget for the case of heavy soils in depression. Journal of Hydrology and Hydromechanics, 54 (1). pp. 26-42. ISSN 0042-790X

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