| Analysis on models of efficient rainwater use in the hilly region of southern Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2005.05.27 |
| Key Words: rainwater resources efficient use model southern Ningxia |
| Author Name | Affiliation | | YANG Yong-hui | Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China；Graduate School of the Chinese Academy of Sciences,Beijing 100039,China | | ZHAO Shi-wei | Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China | | LIU Na-na | College of Resources and Environment,Northwest A＆F University,Yangling, Shaanxi 712100,China | | YIN Zhen-jiang | Xianyang Bureau of Soil and Fertilizer,Xianyang,Shaanxi 712000,China | | ZHANG Fang-qin | Xianyang Bureau of Agricultural Technology Extension,Xianyang,Shaanxi 712000,China |
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| Abstract: |
| In “the comprehensive demonstration area of rainwater harvesting and complementing water-saving irrigation” in Pengyang County of southern Ningxia, the rainfall, soil moisture, models of rainwater harvesting, and yield and water use of crops were investigated and analyzed. The results showed that the five integrated models of rainwater harvesting and utilization were effective in preventing or reducing of soil and water erosion, and in rational distribution and use of rainwater. Water in reservoirs, pools, dams and cellars was used for complementing irrigation that was an effective way to relieve water deficiency during critical period of crops. The handy use and overlapped use of rainwater could promote the growth of crops, trees and grasses, and improve the economic and ecological function of rainwater. |
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