张北县水土资源高效利用的模式与技术探讨

根据张北县特殊的自然气候、地理位置、水土资源利用现状以及在沙漠化形成和防治过程中的重要地位,针对该县粮食生产和生态环境的矛盾以及首都圈生态环境建设的整体需求,总结并提出了不同区域水土资源高效利用的优化模式与主要优化模式配套的技术体系和农业节水技术。其宗旨是缩减耕地面积,调整农业结构布局,推广旱作节水技术,实施"退耕还林还草"工程,杜绝过垦过牧现象。提高该区水土资源的生产效率,建设稳产高效农业和高效畜牧业,增加当地群众的经济收入,恢复该县及周边地区良好的生态环境,形成保护京津地区的绿色北大门和防护线。

Discussion on Patterns and Techniques of Optimum Using Water and Land in Zhangbei County

Based on Zhangbei's special climate and topical environment, different models were put forward for effective utilizing resources of water and land, and the techniques that matched agro-saving water were summarized, according to the requirement of the food production and eco-environment improvment. All the measures were aimed to improve the production efficiency of water and land resources, construct high effective agriculture and stock raising, increase income and eco-environment for local residents, and form a "green gate" and defend barrier for Beijing and Tianjin, by decreasing the area of cropland, stopping excessive farming or grazing, regulating agricultural structure and developing agro-saving water techniques.