盐渍化改造区土地利用变化对地下水资源的影响——以河北省曲周县为例  

Effect of Land Use Change on Groundwater Resource in Salinity Transforming Region——A Case Study of Quzhou County in Hebei Province

作　　者：李新波[1] 郝晋珉[1] 丁忠义[1] 李宇[2] 路鹏[3] 

机构地区：[1]中国农业大学土地资源管理系,北京100094 [2]中国科学院地理科学与资源研究所,北京100101 [3]中国科学院水利部水土保持研究所,陕西杨陵712100

出　　处：《水土保持学报》2005年第5期152-154,200,共4页Journal of Soil and Water Conservation

基　　金：国家"十五"科技攻关课题"黄淮海平原高产区优质高效农业结构模式与技术研究"(2001BA50801)

摘　　要：运用GIS空间分析功能、柯布—道格拉斯生产函数以及曲周县统计资料和地下水资料,分析了近20年来土地利用变化及其对地下水资源的影响,研究结果表明,作为盐渍化改造区以农业为主的曲周县,土地利用变化速度不快且土地用途转移主要是耕地转变为农村居民点和城镇用地;耕地灌溉率、复种指数、耕地灌溉面积、粮食产量不断提高;粮食和蔬菜产量对地下水资源的高度依赖性,是引起地下水埋深变化的主要原因;依据河北省地下水超采区划分标准,曲周县浅层地下水开采区是基本平衡区,深层开采区属于中度超采区。为实现盐渍化改造区水土资源的可持续利用,必须调整种植业结构,适当降低土地利用集约度,大力发展节水农业。Based on the statistics data and groundwater information, we analyzed the land use change and its effect on groundwater, by geographic information systems （GIS） and the Cobb-Douglass production function. As a typical agricultural county in the salinity transforming region, the results showed that the speed of LUC was slow and the farm lands, which changed into rural resident lands and town lands, was the key change type of land use transfer. At the same time, the multiple cropping index, irrigation area, grain yield and the rate of irrigation had been improved increasingly. The high dependency of crop and vegetable yield on irrigation was the key cause of the change of groundwater embedded depth. The exploitation areas of shallow and deep groundwater were respectively the balance area and the moderate overdrawn area by the dividing criterion of groundwater overdrawn area. It is necessary to adjust the structure of crop production, reduce properly the intensity of land use, develop the saving water agriculture in order to realize the regional sustainable use and water in the salinity transforming region.

关 键 词：盐渍化改造区 土地利用变化 生产函数 地下水资源 地下水埋深 

分 类 号：F301.24[经济管理—产业经济] P641.8[天文地球—地质矿产勘探]