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| Analysis on potentiality and benefits of soil moisture conservative irrigation technique in China |
| Wang Youke1,2, Zhang Huili2,Xu Fuli1,2, Yun Xuefeng2 |
| 1.Institute of Soil and Water Conservation of Chinese Academy of Sciences and Ministry of Water Resources; 2.College of Irrigation and Architecture Engineering, Northwest Sci-Tech University of Agriculture and Forestry: 712100, Yangling, Shaanxi, China |
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Abstract To be aimed of the problems of water shortage in agriculture, severe pollution of farmland and decreasing of safe agricultural products as well as that the modern effective water saving technologies are too expensive to extending in a large scale in China, the concept of technological system of soil moisture conservation and irrigation (SMCI) was set up firstly in this study which is a new technological system of water saving formed by combination of soil moisture conservation coverage in the dry farming and water saving irrigation in irrigated agriculture. At the same time, systematic analysis suitability of the saving water, saving fertilizer, ecological and economica benefits of technical system of soil moisture conservation and irrigation. With the extension of technical system of soil moisture conservation and irrigation in half of farmland in China, 19.998 billion m3 of water may be saved.
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Received: 08 May 2005
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