拒马河流域水循环过程的多时空尺度特征  

Multi Temporal-Spatial Scale Characteristics of Water Cycle Process in Jumahe River Basin

作　　者：徐飞 贾仰文[4] 牛存稳[4] 刘佳嘉[4] XU Fei;JIA Yang-wen;NIU Cun-wen;LIU Jia-jia(Guangzhou Institute of Geography,Guangdong Academy of Scienccs,Guangzhou 510070,China;Guangdong Key Laboratory of Remote Sensing and GIS Application,Guangzhou 510070,China;Guangdong Open Laboratory of Geospatial Information Technology and Application,Guangzhou 510070,China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources Hydropower Research,Beijing 100038,China)

机构地区：[1]广东省科学院广州地理研究所,广东广州510070 [2]广东省遥感与地理信息系统应用重点实验室,广东广州510070 [3]广东省地理空间信息技术与应用公共实验室,广东广州510070 [4]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038

出　　处：《水电能源科学》2022年第1期18-20,167,共4页Water Resources and Power

基　　金：广东省科学院发展专项资金(2020GDASYL-20200103008);中国水利水电科学研究院流域水循环模拟与调控国家重点实验室开放研究基金(IWHR-SKL-KF202018);国家重点研发计划(2015CB452701)。

摘　　要：为明晰崇陵小流域和拒马河流域水循环过程的多时空尺度特征,分别构建崇陵小流域和拒马河流域WEP-L分布式水文模型,模拟流域水循环过程,在模型验证效果较好的基础上,利用模型计算结果分析水循环要素时空尺度变化特征。结果表明,年、季、月尺度降水、蒸散发、入渗、径流深的变差系数、极值比、偏差系数空间变化,均呈现崇陵小流域最大,而三个大尺度的相互关系呈现出随流域空间尺度增大而增大的变化趋势。水循环要素特征值崇陵小流域相对三个大尺度反映出空间尺度效应,小流域相对大尺度变化更为剧烈,三个大尺度间的空间尺度关系呈现出随流域面积增大特征值变大的现象。研究结果有助于全面细致地理解水循环过程,可为山区水资源高效利用提供理论依据。In order to clarify the multi temporal and spatial scale characteristics of water cycle,the WEP-L distributed hydrological models of the Chongling small watershed and the Jumahe River basin were constructed to simulate the water cycle process of the two basins.Based on the model calibration and verification,the results calculated by the models were used to analyze the temporal and spatial scale variation characteristics of the water cycle elements.It shows that the spatial variation of coefficient of variation,extreme value ratio,and deviation coefficient of annual,seasonal,and monthly scales of precipitation,evapotranspiration,infiltration,and runoff depth were the largest in the Chongling small watershed.Compared with the three large scales,the characteristic values of water cycle elements in Chongling small watershed reflect the spatial scale effect,while the spatial scale relationship among the three large scales shows the phenomenon that the eigenvalue increases with the increase of basin area.The results provide a theoretical basis for comprehensive and detailed understanding of water cycle process and efficient utilization of water resources in mountainous areas.

关 键 词：水循环 多尺度 分布式水文模型WEP-L 拒马河流域 崇陵小流域 

分 类 号：TV124[水利工程—水文学及水资源] P339[天文地球—水文科学]