摘要
在干旱区 ,定量计算灌溉蒸发量 ,对合理配置水资源有十分重要的意义。然而 ,如何计算灌溉蒸发量 ,特别是建立灌区蒸发量计算模型 ,一直是干旱水文学界关注的问题。本文从水文系统特性出发 ,采用系统识别方法 ,针对干旱区水文系统具体特点 ,建立了灌区水量模型 ,从而计算灌溉蒸发量。
In arid land, proper calculation of irrigation evaporation plays an important role in water resources optimum distribution. However, how to estimate irrigation evaporation, especially establish a irrigation evaporation model, is a key problem in Arid-Hydrology. This paper, based on the hydrological system characteristics, adopts system identification method to establish water model of irrigation and then gets irrigation evaporation.
出处
《西北水资源与水工程》
2001年第2期5-9,共5页
Northwest Water Resources & Water Engineering
基金
国家重点基础研究发展规划项目 (编号 :G1 9990 4 350 8)资助
关键词
干旱区
蒸发量
水文系统识别
灌溉
arid land
irrigation evaporation
hydrological system identification
