干旱区研究2012，Vol.29Issue(6)：980-983,4.
宁夏平罗盐碱地泥质和砂质排水渠道能耗率变化研究
Study on Stream Power of Muddy and Sandy Drainage Channels in Saline-Alkaline Land in Pingluo County of Ningxia
摘要
Abstract
Irrigation and drainage channels play an important role in developing irrigation projects in farmland,and also an active role in controlling water logging and saline-alkaline disasters.In this study,a flume experiment was carried out to analyze the gross and specific stream power of the drainage channels,and two channels in Pingluo County of Ningxia Hui Autonomous Region were separately paved with saline soil and sand.The stability and erosion of these drainage channels were analyzed based on the characteristics of stream power.The results showed that,under the given conditions,the gross stream power of the muddy drainage channel was much lower than that of the sandy one,and it could be quickly reduced to achieve a balance of the channel.The experiment also revealed that the stability of muddy channel was higher than that of the sandy one.Therefore,it is suggested to take muddy channel in developing and improving saline soil in Pingluo County.关键词
泥质排水渠道/沙质排水渠道/能耗率/盐碱地/平罗县/宁夏Key words
muddy drainage channel/sandy drainage channel/gross stream power/saline soil/Pingluo County/Ningxia分类
农业科技引用本文复制引用
范小黎,王随继,杜俊,万书勤..宁夏平罗盐碱地泥质和砂质排水渠道能耗率变化研究[J].干旱区研究,2012,29(6):980-983,4.基金项目
中国科学院西部行动计划项目 （）
