【摘要】 从集雨绿化系统的原理及其发展历史、设计技术参数出发,综述了国内外集雨绿化的经验和研究现状,通过兰州皋兰农业生态站的近几年的试验结果,详细讨论了集雨绿化系统的技术方法,改进集雨绿化系统各个组成部分的措施和开展集雨造林技术要点。同时,针对目前在干旱半干旱地区进行生态环境建设,建议采用微型集雨绿化系统,提高雨水利用效益,并指出今后需要开展的研究和在推广应用中需要解决的主要问题。更多还原

【Abstract】 The area of arid and semiarid regions occupies 52.5% of the total land area of China,in which the area of the regions where the annual precipitation varies in a range of 200～25 mm and there is no agriculture if there are no irrigation works occupies 30.8% of the total land area of China,and the area of the semiarid regions where the annual precipitation varies in a range of 250～600 mm and the agricultural production and the ecological environment are unstable occupies 21.7%.This paper summarizes briefly the history and actuality of the domestic and foreign researches on afforestation by rainwater-gathering systems,and discusses the theory and techniques of the afforestation in details.The main research content of afforestation by rainwater-gathering systems is discussed based on the various component parts of integrated rainwater-gathering systems.In view of the existing problems in regenerating the ecological environment by rainwater-gathering systems in arid and semiarid regions,it is suggested to apply subminiature rainwater-gathering systems so as to increase the utilization efficiency of gathered rainwater,and the techniques and the main problems to be solved in future research and application are also discussed.更多还原