摘要
在大范围试验研究的基础上,提出了节水灌溉体系的基本概念和内容,对体系所包含的主要方面,包括有限水资源时空合理配置、涵养水源,在输、配、灌、耗各个环节减少无益水量损失,提高水的利用率和供水效益等方面,进行了全面、深入的研究,提出了系统的措施和实施技术。并在较大范围内推广应用,取得了显著的经济效益。
The basic concepts and contents of the water-saving irrigation system have been presented based on the large scale experiment study. The main aspects of the system, such as the reasonable allo- cation of the limited water resources in space and time, water resources preservation, decrease the use- less water losses in water transfering、distributing、irrigating and consuming and enhance water effi- ciency and water supply benefit have been totally and deeply studied in this paper. The measured and practice techniques have also been developed. The obvious economic benefits have been achieved by the application and popularization of the system in a large scale field.
关键词
节水灌溉
水资源
涵养水源
water--saving irrigation
water resources
water resources preservation
water use efficiency