民勤红崖山灌区渠系水面蒸发量计算方法研究  

Research on Surface Water Evaporation of Canal System in Minqin Hongyashan Irrigation Area

作　　者：雒天峰[1] 李元红[1] 王治军[1] 陈小红[2] 

机构地区：[1]甘肃省水利科学研究院,甘肃兰州730000 [2]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《人民黄河》2013年第8期81-83,98,共4页Yellow River

基　　金：国家自然科学基金资助项目(51169001;41201560);国家科技支撑计划项目(2011BAD29B04)

摘　　要：水面蒸发是流域水资源规划、优化调度与管理及水资源评价等必须考虑的水文要素。针对石羊河流域水面蒸发特点,利用气象资料,对国内外水面蒸发量典型计算模型进行了对比分析,Hofner湖模型、晋阳湖模型2、闵骞模型计算结果与E-601型蒸发皿实测值比较接近,相对误差分别为-4.91%、-6.93%、-2.02%,因此可以利用闵骞模型计算民勤红崖山灌区水面蒸发量;探讨了动水水面蒸发量计算方法,结合闵骞模型,分别计算了红崖山灌区不同灌溉期的水面日均蒸发量;根据红崖山灌区干渠、支渠、斗渠、农渠、机井沟在2010年不同灌水期的灌水时间、水面宽度、输水长度、日蒸发量,分别计算了各级渠道的水面蒸发量。Evaporation of water surface is river basin water resources planning, optimizing the operation and management of water resources evalua- tion and must be considered, such as the water features. Aiming to the water surface evaporation characteristics the Shiyang River basin, the paper conducted the contrast analysis by using meteorological data and the water evaporation of domestic and foreign typical calculation models. It was concluded that the calculation results of Hofner Lake model, Jinyang Lake model 2 and Minqian model were closer to the observed data of E -601 and the relative eiTors were -4.91%, -6.93% and -2.02% respectively. Therefore, the use of Minqian model could calculate Minqin Hong- yashan irrigation water surface evaporation. Discussing the dynamic water surface evaporation capacity calculation method and combining with Min- qian model, we calculated Hongyashan irrigation area during different irrigation water daily evaporation. Hongyashan irrigation area were developed according to the main irrigation canal, lateral, lateral canal, irrigation ditch, shaft groove in 2010 different irrigation times, surface width, length and the water evaporation to calculate the water surface evaporation at all levels of the channel respectively.

关 键 词：水面蒸发 计算模型 渠系水面蒸发量 民勤绿洲 

分 类 号：TV93[水利工程—水利水电工程]