Cel The project aims to investigate experimentally and theoretically by the means of numerical simulation the mechanisms of preferential water flow in soil with heterogeneous pore space structure. The experimental studies will be carry out on four type of irrigated soils: on chernozem in Ukraine near Kharkov, on sirtisoil in Russia near Saratov, on brunisoil in Russia near Rostov Don, in solontchak in Uzbekistan near Tashkent.The modelling studies will focus on coupling water flow simulating and unsaturated soil hydraulic property estimating. The main specific objectives are:- to carry out a complex of field and laboratory experiments enhancing the understanding of water flow in four types of soil with heterogeneous pore space structure;- to develop and evaluate a set of comprehensive models simulating water flow in soil with heterogeneous pore space structure and estimating hydraulic properties of such soils;- to assess a risk of impact to subsurface water from preferential water flow through soil with heterogeneous pore space structure.The work programme consists of two major parts: an experimental part (T1) and a modelling part (T2 and T3)Experimental part is consisting of field and laboratory experiments. Field experiments investigating the preferential flow process will be made in small-scale plot to provide datasets for the calibration of water flow models. These experiments will be carried out on a variety soils having a heterogeneous pore space structure and representing a challenge for preferential flow modelling.Modelling part of the project is subdivided into two parts. First (T 2) is aimed to verify and evaluate for four soils both set of models simulating preferential flow using a datasets of small-scale field experiments and estimating unsaturated soil hydraulic properties using a datasets of laboratory analyses & experiments. Second (T 3) is aimed to validate the set of both models simulating preferential flow and estimating unsaturated soil hydraulic properties by computing experiments of sensitivity & uncertainty analyses and to assess the risk of impact to subsurface water in different circumstances.The expected results will be important for understanding and parametrizing the preferential water flow process in soil with heterogeneous pore space structure. The expected outcomes of the validated models are numerous. In particular, the results can be used to assess the risk of impact to subsurface water, obtain the soil unsaturated hydraulic parameters by indirect method using soil physical properties. The results of field and laboratory experiments will give the unique information on the preferential water flow in four widely used in agriculture soils. The progress in understanding of both preferential water flow dynamics and their parameterisation will enable the development of more adequate models for their description. The indirect method of water flow parameterisation could be used for remote sensing investigations in the large-scale. Program(-y) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Temat(-y) 5 - Earth Sciences, Environment, Energy FOOD - Food quality and safety Zaproszenie do składania wniosków Data not available System finansowania Data not available Koordynator Ministry of Agriculture, Nature Management and Fisheries Wkład UE Brak danych Adres Droevendaalsesteeg 3 6700 AA Wageningen Niderlandy Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (6) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko Association Waterproject Uzbekistan Wkład UE Brak danych Adres Malyasova 3 700000 Tashkent Zobacz na mapie Koszt całkowity Brak danych Ben-Gurion University of the Negev Izrael Wkład UE Brak danych Adres 84990 Sede Boker Campus Zobacz na mapie Koszt całkowity Brak danych Institute for Soil Science and Agrochemistry Research Ukraina Wkład UE Brak danych Adres Chaikovsky str. 4 310024 Kharkov Zobacz na mapie Koszt całkowity Brak danych Moscow State University of Environmental Engineering Rosja Wkład UE Brak danych Adres Prjanishnikov street 19 127550 Moscow Zobacz na mapie Koszt całkowity Brak danych Russian Soil Science Dokutchaev's Institute Rosja Wkład UE Brak danych Adres Pigevsky pereulok, 7 109017 Moscow Zobacz na mapie Koszt całkowity Brak danych Saratov State Agrarian University Rosja Wkład UE Brak danych Adres Volskay, 49/51-154 410600 Saratov Zobacz na mapie Koszt całkowity Brak danych
