检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]河北工程大学,河北邯郸056021 [2]北京水利水电学校,北京100038
出 处:《中国农村水利水电》2009年第2期49-52,共4页China Rural Water and Hydropower
摘 要:国内外对于灌溉节水量研究,已由传统节水量向真实节水量发展。首先阐述了真实节水基本概念和计算方法,在此基础上,提出渠井结合灌区真实节水量由直接节水量、间接节水量、袭夺潜水蒸发量等3部分构成,并对黑河中游友联灌区真实节水量及参数的敏感性进行了计算,最后对各种措施的节水效果、方法的适用条件及存在的问题进行了分析。The study for irrigation water saving have converted from traditional to true water saving quantity by foreign and national Scholars. This paper, at first, analyzes the based concept of true water saving quantity and the calculating method. And on this basis, the paper suggests that true water saving quantity for the irrigation area of outlet combining wells is composed of direct quantity of water saving, indirect quantity of water saving and seize diving evaporation and so on. Then, the author calculates the true water saving quantity and the sensitivity of parameters for You-lian irrigation area in intermedinate of Hei he. At last, the paper analyzes the saving effect of various measures, the applicable conditions of this method and the existed problems.
分 类 号:TV93[水利工程—水利水电工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15