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Study on Problems of Soil and Water Conservation in Land Development and Consolidation Project ——th
It is very important for land development and consolidation project to control soil and water loss.Usually,the
projects of land development and consolidation concerning soil and water loss are located in mountain or hilly area and sand area,and mostly in hilly area.Taking a hilly land consolidation project in Tanghe county of Henan Province as study area,problems of soil and water conservation in the process of land consolidation are probed from two aspects of project plan and design.Gradient is an important factor causing soil and water loss in hilly area.Therefore,it is necessary to plan feasible land use mode in the process of land consolidation in study area: (1) Area with gradient of 0～3°is planned as farmland,so as to increase area of cultivated land.(2) Area with gradient of 3～6°is planned as orchard intercropping grain.(3) Area with gradient above 6°is planned as forests,so as to control soil and water loss and ensure agricultural development.Furthermore,the design of terrace should be paid more attention to according to local physical conditions,in order to control soil and water loss.
Published: December 30, 2005
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