塔里木河流域水面蒸发折算系数分析  

Conversion Coefficient of Water Surface Evaporation in Tarim River Basin

作　　者：胡顺军[1] 田长彦[1] 宋郁东[1] 陈斌 王方[1] 

机构地区：[1]中国科学院新疆生态与地理研究所 [2]新疆阿瓦提县丰收三场,新疆阿瓦提830049

出　　处：《中国沙漠》2005年第5期649-651,共3页Journal of Desert Research

基　　金：国家自然科学基金项目(编号40471020);863计划(编号2002AA2Z4201);国家科技攻关计划(编号2002BA901A36);中国科学院"西部之光"项目共同资助

摘　　要：根据阿克苏上游水库1982-1987年,塔门镇2000-2002年同步观测的20 m2水面蒸发池和直径20 cm小型蒸发器水面蒸发资料,估算了直径20 cm小型蒸发器对20 m2水面蒸发池的水面蒸发折算系数,分析了其变化特征,并与北疆哈地坡及我国新蒙区年水面蒸发折算系数进行了对比.结果表明,塔里木盆地冻结期(4～10月)的水面蒸发虽然微弱,但不能忽略,水面蒸发折算系数在非冻结期逐月增大,年际变化较小,但呈现逐年下降的趋势.该结果可供塔里木河流域水量平衡研究、水资源评价、生态需水计算时参考.The paper evaluated the evaporation conversion coefficient from 20 cm pan to 20 m^2 pool based on the climate data synchronously observed in Shangyou reservoir from 1982 to 1987 and in Tamen town from 2000 to 2002 ; analyzed the coefficient s changing characteristics. The evaporation conversion coefficients of the above two regions are compared with that of Hadipo in north Xinjiang and that in Xinjiang-Mongolia region. The results showed that the water surface evaporation intensity is small during the freezing period, but can＇t be neglected. The conversion coefficient increases month by month during the freezing period, yearly change is small, but has a trend of decreasing year to year. The study results can provide references for water balance research, water resources evaluation, and ecological water demand calculation in Tarim river basin.

关 键 词：折算系数 小型蒸发器 20m^2水面蒸发池 水面蒸发 塔里木河流域 

分 类 号：P332.2[天文地球—水文科学]