摘要
节水技术的应用是沙区植被快速、稳定恢复的保障。减少输水、田间配水及作物利用过程中的水分无效损失,最大限度地提高水分利用率和水分生产效率,是节水技术的核心。在无灌溉条件的流动沙丘和沙梁地,通过径流汇集利用,充分实现降雨的有效化,利用各种生物和工程措施来减少植被系统的无效蒸发散损失和深层渗漏,通过合理配置提高水资源的循环与转化是沙区发展免灌植被的主要途径。
Application of water-saving technologies ensures sandy plantation recovery quickly and stably. Reducing of water loss in the process of transporting, field allotting and absorbing by plants plays key role in water-saving technologies. The non-irrigation plantation in moving sand dune and sandy girder areas should adopt some biological and engineering measures such as runoff-collecting to improve effects of rainfall, reduce losses by evaporation and depth leaking, and improving circulation and transformation of water in sandy plantation ecology system by reasonable allocation.
出处
《世界林业研究》
CSCD
北大核心
2006年第3期22-26,共5页
World Forestry Research
基金
国家"863"项目"西北半干旱生态植被建设区节水综合技术体系集成与示范"(2002AA2Z4271)
关键词
沙区
植被恢复
节水技术
sandy area, vegetation recovery, water-saving technologies
