• 资源评价 •

### 基于下垫面遥感资料的海河流域水文类型分区划分

1. 天津大学 水利工程仿真与安全国家重点实验室, 天津 300072
• 收稿日期:2012-03-08 修回日期:2013-01-08 出版日期:2013-08-20 发布日期:2013-08-19
• 作者简介:冯平(1964- ),男,黑龙江密山人,教授,博士,主要从事水文学与水资源问题的研究。E-mail:fengping@tju.edu.cn
• 基金资助:
国家自然科学基金资助项目(51279123,51179117)。

### Hydrologic Type Regions Delineation of Haihe River Basin Based on Remote Sensing Data of Underlying Surface Cover

FENG Ping, WEI Zhao-zhen, LI Jian-zhu

1. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
• Received:2012-03-08 Revised:2013-01-08 Online:2013-08-20 Published:2013-08-19

Abstract: Taking the Haihe River Basin as the study area, based on the annual rainfall and water surface evaporation data of 1956-2005, digital elevation model and the remote sensing data of land use, soil and vegetation cover, the physical factors which reflect underlying surface conditions and climate characteristics were extracted in geographic information system(GIS), and then the underlying surface conditions and climate characteristics were taken as the regionalization indexes. Using GIS and multivariate statistical analyses, 1399 sub-basins of the Haihe River Basin were assigned to 7 hydrologic type regions(HTR) according to their similarities and differences of underlying surface conditions and climate factors. We also analyzed the spatial distribution and hydrological characteristics of each region. HTR1, HTR2 and HTR4 are located in plain area where the main land use type is cultivated land, and other HTRs are located in mountainous and hilly regions. The area proportion of agricultural land in HTR1 is the largest; the soil permeability of HTR2 is the worst and surface runoff over infiltration is easily generated; the soil permeability of HTR3 is the best, and subsurface runoff and interflow are more expected to happen; HTR4 has lager annual evaporation, smaller annual rainfall, and the driest climate; the main land use type of HTR5 and HTR6 is grassland and forestland respectively; HTR7 has smaller annual evaporation, larger annual rainfall, and the wettest climate. The result of hydrologic type regions delineation is very anastomotic with the landforms of watershed, explicitly reflects the underlying surface and climate factors, and reflects the distribution regularities of basin’s hydrologic characteristics. Then the result was verified to be accurate and rational by analyzing the underlying surface and climate factors of typical watersheds in hydrologic type regions, and it could provide fundamental basis for water resources assessment and study of hydrologic characteristics in the Haihe River Basin.

• P333.9