水文尺度转换研究进展  

Research progress on hydrological scaling

作　　者：刘建梅[1] 裴铁璠[1] 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016

出　　处：《应用生态学报》2003年第12期2305-2310,共6页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究发展规划项目 (2 0 0 2CB1115 0 3 );中国科学院知识创新工程重要方向资助项目(KZCX3 SW 42 5 )

摘　　要：介绍了水文尺度、尺度问题和尺度转换的概念 ,重点与难点在流域的空间异质性和水文通量的时空变异性 ;给出了进行尺度转换的 3种途径 ,即分布式水文模拟、分形理论和统计自相似性分析 ;最后在已有成果的基础上 ,提出了目前研究中存在的问题及未来的发展方向 .With the development of hydrology and the extending effect of mankind on environment, scale issue has become a great challenge to many hydrologists due to the stochasticism and complexity of hydrological phenomena and natural catchments. More and more concern has been given to the scaling issues to gain a large scale (or small scale) hydrological characteristic from a certain known catchments, but hasn't been solved successfully. The first part of this paper introduced some concepts about hydrological scale, scale issue and scaling. The key problem is the spatial heterogeneity of catchments and the temporal and spatial variability of hydrological fluxes. Three approaches to scale were put forward in the third part, which were distributed modeling, fractal theory and statistical self similarity analyses. Existing problems and future research directions were proposed in the last part.

关 键 词：水文尺度 尺度转换 

分 类 号：P332[天文地球—水文科学]