考虑土地利用类型的黑河中游水量平衡模型  

Monthly Water Balance Model in Middle Reaches of Heihe River Basin Considering Land Use Types

作　　者：李英[1] 王中根[1] 桑燕芳[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101

出　　处：《人民黄河》2014年第10期68-71,共4页Yellow River

基　　金：国家"973"计划项目(2009CB421305)

摘　　要：根据黑河中游土地利用方式，划分6种主要的土地利用类型，针对每种类型进行水量平衡分析与概化处理，构建考虑不同土地利用类型的黑河中游月水量平衡模型。利用正义峡1980-2009年月径流数据对模型进行率定和验证，效率系数高于0.65，相对误差小于10%，能够满足水资源管理的需要。基于所构建的模型，模拟了黑河中游不同土地利用类型水平衡各分量的变化，发现黑河中游耕地若采用最优灌溉定额进行灌溉，较现状可节水5.27亿-6.56亿m3，不仅能保证中游的用水需求，还能改善下游绿洲生态环境。According to Heihe River land use patterns,six land use types were divided. Water balance relationship was analyzed and generalized for each land use type,and finally built Heihe River monthly water balance model. Using Zhengyixia runoff data from 1980 to 2009,model parame-ters were calibrated and validated. The results show that the efficiency coefficient is higher than 0. 65 and the relative error are less than 10% ;the water balance model could meet the needs of water management in Heihe River. Based on the established model,the water balance and each com-ponent of different land use types were simulated. The study found that optimal irrigation in the middle reaches of Heihe River could save water 0. 527 - 0. 656 billion m3 ,which could not only ensure the needs of the middle reaches,but also improve the ecological environment of the lower rea-ches of Heihe River.

关 键 词：月水量平衡模型 土地利用类型 内陆干旱区 黑河中游 

分 类 号：P333[天文地球—水文科学]