• CONSERVING OF THE RESOURCES

    SOIL WATER MANAGEMENT IN THE SIBERIAN KULUNDA- DRY STEPPE

    Mechanization in Agriculture, Vol. 63 (2017), Issue 5, pg(s) 197-201

    From 1954 to 1963, approximately 42 million ha of the Southern Russian steppe, of which 6.2 million ha are located in Western Siberia, were converted into large-scale intensive agricultural area. The affected areas are highly vulnerable to wind erosion and the presently ongoing climate change effect. The establishment of sustainable land management practices is essential to secure agricultural production and the further economic development of the region. The assessment and management of the soil water is of great importance for crop yield potentials and protection against wind erosion. The paper presents a meteorological and soil hydrological measuring network. The results showed that the No-Tillage technology gradually formed soil conditions close to the natural dry steppe background. Furthermore, the installed techniques can be used to measure the parameter “actual evapotranspiration” which is a key factor to evaluate climate change impacts.

  • CONSERVING OF THE RESOURCES

    USE OF SOPHISTICATED LYSIMETER TYPES TO MEASURE SOIL WATER BALANCE PARAMETERS WITH HIGH ACCURACY

    Mechanization in Agriculture, Vol. 62 (2016), Issue 4, pg(s) 15-18

    Intensive cultivation has resulted in an accumulation of nutrients and hazardous substances in the soil. These solutes represent a potential risk to the quality of both surface and groundwater. It is of vital interest to know the quantity and quality of seepage water which leaves the root zone, then enters the aquifer and finally the surface water system. To solve the problem we carried out trials at different scales to get information on how different land management methods influence the amount and quality of seepage water. We used direct lysimetry methods for measuring water and solute fluxes in soils. The combination of lysimeter studies with field experiments at different scales opens new possibilities for modelling and management of watersheds. The paper informs about advances in lysimeter techniques and technology and gives a practical application of this technique to measure the amount of dew. Based on an example the combination of lysimeter measuring results with the WebGIS based model STOFFBILANZ for calculating nutrient balances at catchment scale will be shown.