摘要
农业水分利用效率(WUE)是消耗单位水所获得的农产品产量,是农业水资源高效利用的核心问题。综合国内外研究成果,阐述农业水分利用效率的研究尺度、计算方法和影响因素,并讨论提高WUE的主要技术措施,其中引入基于ET的科学水管理理念;分析WUE与灌溉水量、有效降水量和有效灌溉面积的关系;讨论利用WUE进行水资源利用评估时存在的问题,以及今后的研究重点。
Agricultural water use efficiency （WIDE） is the ratio of output （in most cases using yield） to water consumption,which is the core issue of agricultural water high efficient use. This article synthesized the literature released home and ahroad, represented the researching scales of agricultural water use efficiency, as well as the calculation methods and influencing factors; also this synthesis summarized techniques of improving WUE; a water management concept based on ET was particularly introduced. Besides,the relation between WUE and irrigation water amount,effective precipitation and effective irrigation area was analyzed in detail. In conclusion, the main problems were discussed when using WUE to compare water use efficiency among different regions and different crops, and the major issues that need to be further studied were pointed out.
出处
《南水北调与水利科技》
CAS
CSCD
2010年第1期82-87,98,共7页
South-to-North Water Transfers and Water Science & Technology
基金
高等学校博士学科点专项科研基金资助课题(20060027018)
渭河水专项农业专题(2009ZX07212-002-003-002)
作者简介
王海龙（1984-），男，河北承德人，硕士研究生．主要从事水资源高效利用．环境科学等方面研究。
通讯作者：王会肖（1966-），女，河北石家庄人，教授，博士生导师，主要从事生态水文和农业水文研究。
