农田荒漠过渡带包气带土壤水盐运移规律研究  

Law of Soil Water and Salt Transport in Vadose Zone of Transition Zone between Farmland and Desert

作　　者：崔尚进 刘鹏飞[1,2] 聂振龙 朱谱成[1,2] CUI Shang-jin;LIU Peng-fei;NIE Zhen-long;ZHU Pu-cheng(Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China;Key Laboratory of Groundwater Science and Engineering,Ministry of Natural Resources,Shijiazhuang 050061,China)

机构地区：[1]中国地质科学院水文地质环境地质研究所,石家庄050061 [2]自然资源部地下水科学与工程重点实验室,石家庄050061

出　　处：《科学技术与工程》2022年第20期8640-8645,共6页Science Technology and Engineering

基　　金：河北省青年科学基金(D2021504040);海河流域等重点地区水文地质与水资源调查评价项目(DD20221752);中国地质调查局基本科研业务项目(SK202215)。

摘　　要：为实现农田区作物和农田荒漠过渡带保护区植被协同发展,通过石羊河流域下游某试验场原位试验研究灌溉后农田荒漠过渡带包气带土壤水盐运移规律。结果表明:农田荒漠过渡带上,荒漠区土壤包气带水盐运移与农田区灌溉息息相关。灌溉后,农田区土壤盐分随灌溉水进入地下水中,继而流向荒漠区,引起荒漠区表层土壤盐分大幅升高。水位调控后,灌溉对农田区表层土壤脱盐效果更好,盐分随灌溉水向下运移更深。同时,农田区侧向流入荒漠区盐分减少,而且减少了浅层咸水进入荒漠区包气带土壤中的盐分,有效缓解了荒漠区表层土壤聚盐效应。In order to realize the coordinated development of crops in farmland area and vegetation in farmland desert transition zone,the law of soil water and salt transport in the aeration zone of farmland desert transition zone after irrigation was studied through in-situ experiment at a test site in the lower reaches of Shiyang River Basin.The results show that water and salt transport in soil aeration zone in desert area is affected by farmland irrigation.After irrigation,soil salt in farmland area enters groundwater with irrigation water,and then flows to desert area.Resulting the salt content of surface soil in desert area to increases greatly.After water level regulation,irrigation in farmland has a better effect on surface soil desalination,and salt moves deeper downward with irrigation water.After the regulation of the desert area,not only the salt flowing into the desert area from the farmland area is reduced.but also the salt in the groundwater entering the aeration zone soil is reduced,which effectively alleviate the salt accumulation effect of the surface soil in the desert area.

关 键 词：农田荒漠过渡带 包气带 土壤水盐运移 水位调控 

分 类 号：S275[农业科学—农业水土工程]