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Water Distribution and transport in sandy soil under drip Irrigation

Chen Quchang Wu Zhongbo She Guoying Rong Hao (The Hydraulic Institute for Pastoral Areas, Huhehot 010010)  
By observing the transfer of wet front, the development of wetted soil body during a irrigation, as well as the final forms and sizes of wetted soil body under different dripping rates and duration, the water distribution and redistribution in sandy soil under drip irrigation were analyzed systematically. Based on a great deal of on the spot data, this paper reveals the water distribution and transport laws under drip irrigation in sandy soil. Field experimental results show that the optimal parameters of a drip irrigation system for corn in Inter Mongolia Autonomous Region can be set as: emitter space is about 50 cm, emitting rate per emitter is about 2.0 L/hr, and duration time is 2 ̄3 hr for a irrigation.
【Fund】: “九五”攻关项目
【CateGory Index】: S274
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