怀来县水土资源高效利用模式与农业节水技术探讨

根据怀来县自然气候条件和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，分析了该县粮果生产和生态环境的矛盾，针对首都圈生态环境建设的整体需求，总结提出了适宜该县不同区域的水土资源高效利用的优化模式和农业节水技术。其宗旨是杜绝过度垦殖现象，调整农业结构布局，实施"退耕还林还草"工程和农业节水技术，提高该区水土资源的生产效率，建设稳产高效农业和林果业，增加当地群众的经济收入，形成环京津地区的天然绿色防线。

Discussion on Patterns and Techniques of Optimum Utilization of Water and Land in Huailai County

Based on Huailai’ s characteristics of climate and the resources use of water and soil, the conflicts were analyzed between environment and production of food and fruits. Different models were put forward for effectively using resources of water and land according to the requirement of re-establishing environment for Beijing. All the measures aim at improving the production efficiency of soil and water resources, increaseing local farmers’ income, resuming the environment for local and all around regions, and forming a "green defend barrier" to Beijing, to prohibit excessive reclamation, regulate agricultural structure, advocate water-saving techniques and develop vegetations instead of farming in the lands with low production and environmental degradation.