摘要
我国是农业大国,农业灌溉用水量占比大,应在灌区内合理布置量水计量点,降低量水成本,减少水头损失,研究出计算简单、实用性强的测算方法﹐用于指导灌区准确计量水非常必要。本文以温瑞灌区为例,采用“以点带面”推算法获取多水源和涉及范围广的多尺度灌区毛灌溉用水量。结果表明:该方法具有一定的代表性和可信度,且该方法原理清晰易懂,可操作性较强,可用于测算多尺度灌区的毛灌溉用水量,也可为其他地区统计农田灌溉用水量提供参考。
China is a large agricultural country with a large proportion of agricultural irrigation water consumption.It is necessary to rationally arrange water metering points in irrigation districts,reduce water metering cost and head loss,and study a simple and practical calculation method to guide irrigation districts to accurately measure water.Taking Wenrui Irrigation District as an example,the“point-to-area”algorithm is used to obtain the gross irrigation water consumption of multi-water source and multi-scale irrigation districts.The results show that this method has certain representativeness and credibility,and its principle is clear and easy to understand,and it can be used to calculate the gross irrigation water consumption of multi-scale irrigation districts.It can provide technical support for statistics of irrigation water consumption in other areas.
作者
余学芳
竺一帆
谢林聪
YU Xuefang;ZHU Yifan;XIE Lincong(Zhejiang University of Water Resources and Electric Power,Hangzhou 310018,China)
出处
《水资源开发与管理》
2021年第10期12-14,25,共4页
Water Resources Development and Management
基金
浙江省自然基金资助项目(LQ21E090003)。
关键词
温瑞灌区
以点带面
毛灌溉用水量
Wenrui irrigation district
take points with areas
gross irrigation water consumption
