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《Journal of Anhui Agricultural Sciences》 2009-18
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Calculating and Analyzing of Agricultural Irrigation Water-saving Potential

GAO Chuan-chang et al (North China University of Water Conservancy and Electric Power,Zhengzhou,Henan 450011)  
Henan belongs to the serious water shortage provinces in china,the water usage in agriculture accounts for about 80% of the total,while other industries have no sufficient water supply.The utilization rate of agriculture irrigation water was low and there was great potential of water-saving.From the crop-water requirement of irrigation agriculture in Yangqiao Irrigation Area,effective precipitation,groundwater replenishment,water transport losing,and losing in the field etc were considered to calculate the total need amount of water of irrigation agriculture in Yangqiao irrigation area.Average theoretical water-saving potential water was 1 972.88 ten thousand m3 when compared with the actual water usage from 2001 to 2003.It was concluded out that the average actual water saving potential in Yangqiao irrigation area agriculture from 2001 to 2003 was 1 815.05 ten thousand m3 by utilizing the actual regulating factors,which provides a theoretical foundation for water resources macro-regulation utilization and water-saving programming in Henan Province.
【CateGory Index】: S274
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