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Study On Evaluation And Optimal Allocation Of Agricultural Water Resources In Qital County

Posted on:2008-03-19Degree:MasterType:Thesis
Country:ChinaCandidate:C H ChangFull Text:PDF
GTID:2189360215982983Subject:Physical geography
Abstract/Summary:PDF Full Text Request
In the arid and semi-arid region, water is sensitivity and the important check factor of the social economic development. The agriculture water has the biggest weight in each profession. The agriculture water resources can keep on exploitation or not, that will have graveness influence to the water resources continuance. But because low level of the management in agriculture water and irrationally with the irrigation method, result in the agriculture water resources of valid make use of lower and wasted badly.This thesis analysis the water supply and demand balance to agriculture on the foundation of the theories continuously to use the agriculture water get the condition of the water supply and demand. On the foundation of water estimate to the agriculture, forecast the needing amount s in2010 and 2015 and analyze surplus and deficiency water degree. In Principle with the localization, suitable for quantification, scientific, dynamic and static etc, select evaluation index, apply misty mathematics thought and use the level in Xinjiang as a reference standard, compute subject degree. Then making use of the line type programming theories, calculate the allotment and the irrigation water to the main crops and analysis result. Put forward resolving counter plan.Here are the main conclusions of this thesis:(1) The amount of water of Agriculture in Qitai County have greatly weight, the amount of water in irrigation is greatly from1996 to 2005, The wool water demand difference quite is big every year, all is short of condition. But opposite to every year net water demand, all is smaller than the region to supply the water, has surplus water, and has space to save water. (2) 2010and 2015 needing amount of water with agriculture is more than 2005. Still be placed in the predicament of the water shortage. The agriculture water of missing will restrict seriously local the agricultural development.(3) In 2005 the supporting capacity agriculture water is at the saturated condition but 2010 and 2015 is arrived super saturation .In the agriculture development in future, not suit large-scale development agriculture plant area, should adjust plant structure and the exaltation utilization.(4) Through adjust the farm crop structure, five main farm crops change very greatly, the area of the wheat, corn and barley are reduce, the oil plant and beet are increment, particularly is beet area increment more. Want to make comprehensive performance of area to be biggest, have to adjust agriculture plant structure and reduce plant area under the situation that the quantity shortage of agriculture supply water makes the crop plant the superior allotment in the area and amount of water.
Keywords/Search Tags:Agriculture water resources, Balance of supply and demand, Agricultural water resources supporting capacity, optimized disposition
PDF Full Text Request
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