节点文献
污水灌溉对土壤持水能力的影响
Effects of Sewage Irrigation on Soil-holding Capacity
【Author】 Lan Mingju,Li Mingsi,Zhao Guojun,Lu Rui (College of Water Conservancy and Architecture Engineering,Shihezi University,Shihezi, Xinjiang 832000,China)
【机构】 石河子大学水利建筑工程学院;
【摘要】 污水灌溉后污水中的有机物会影响土壤结构,继而影响土壤的持水能力。本文对沙土和壤土进行室内污水灌溉试验,通过测定两种土壤的田间持水率和孔隙度,分析了污水灌溉对土壤持水能力的影响。试验表明:污水灌溉增加了土壤的黏性是使土壤持水能力增加的主要原因,污水灌溉对壤土的持水能力影响更大。
【Abstract】 Organic matter in sewage water can affect soil structure under irrigation; consequently affect the soil water holding capacity too.With observing soil field capacity and porosity,the experiments of irrigating sandy soil and loamy soil with sewage water were carried out to analyze the effect of sewage irrigation on the soil -holding capacity.The experiments results indicated that the primary cause of increasing soil -holding capacity was that sewage irrigation enhanced clayey of soil.Comparison with the sandy soil,the loamy soil was heavy impacted by the sewage water.
【Key words】 Sewage irrigation; Soil field capacity; Soil porosity; Soil-holding;
- 【会议录名称】 现代节水高效农业与生态灌区建设(下)
- 【会议时间】2010-08-01
- 【分类号】S273.5