半干旱区降水资源高效利用技术研究

Study oh Technique of High-efficiency Utilization of Rainfall Resources in Semi-arid Area

在半干旱区地形坡度为１０°的区域，以开发降水资源的生产潜力为目的而设计的农业集流贮水补灌系统，集流面以混凝土处理为好，贮水部分以混凝土薄壳水窖为宜。春小麦播种后采取覆盖措施，并在开花期利用补灌系统进行有限补灌，可使小麦产量大幅度提高。

In the semi-arid area with slope of 10°, a runoff collection, storage and supplementary irrigation system for agriculture is designed to exploit the production potential of rainfall resources, the runoff-collecting surface should be dealt with concrete, and storage part should be dealt with thin concrete shell. After winter wheat was planted, and covered, the peasants irrigated wheat through supplememtary system in flowering season, thus the unit yield of wheat can be increased obviously.