大中型灌区设计灌水率影响因素研究  

Influencing Factors on Designed Irrigation Modulus of Large and Medium-sized Irrigation Districts in China

作　　者：罗翔 黄韬幸 林昱锜 LUO Xiang;HUANG Tao-xing;LIN Yu-qi(PowerChina Huadong Engineering CO.,LTD.,Hangzhou 311122,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《浙江水利水电学院学报》2021年第6期37-42,共6页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：国内大中型灌区设计灌水率影响因素复杂,包括灌溉面积、灌区规模、设计灌水率、主要种植作物比例、灌水延续时间、降雨有效利用系数、灌溉保证率和渗漏强度等。通过相关变量对灌水率的影响因素进行分析,结果表明:种植水稻为主的东北地区和华东地区灌水率较大,种植旱田作物为主的西北地区灌水率较小;中型和大型灌区随着灌溉面积增加,灌区灌水率随之增加;老区在修建之初灌区设计灌水率取值较大,后期新建灌区灌水率相对较低。该研究结果对合理确定灌区灌水率、老旧灌区配套改造、提高灌区运行管理水平等都具有参考意义。The basic data of irrigation area,irrigation area scale,designed irrigation rate,proportion of main crops planted,irrigation duration,effective utilization coefficient of rainfall,irrigation guarantee rate and leakage intensity of large and medium-sized irrigated areas in China are collected in this study,and the influence of relevant variables on irrigation modulus is analyzed.The results show that the irrigation modulus is higher in Northeast China and East China where rice is mainly planted,while the irrigation modulus is lower in Northwest China where dry field crops are mainly planted.The irrigation rate increases with the increase of irrigation area in medium and large irrigated areas.The value of designed irrigation modulus is larger in the old irrigated area,while the irrigation rate is relatively lower in the new irrigated area.The results of this study are of great significance to determine the irrigation modulus of the irrigated area reasonably,as well as to reconstruct the old irrigated area and improve the operation and management level of the irrigated area.

关 键 词：灌水率 影响因素 兴建年代 灌区改造 

分 类 号：S274[农业科学—农业水土工程]