Impact of land-cover and climate changes on runoff of the source regions of the Yellow River |
| |
| Authors: | LI Daofeng TIAN Ying LIU Changming HAO Fanghua |
| |
| Institution: | 1. State Key Joint Laboratory of Environmental Simulation and Pollution Control, Key Laboratory for Water and Sediment Sciences of Ministry of Education, Institute of Water Sciences, Beijing Normal University, Beijing 100875, China|
2. Dept. of Civil Engineering, The University of Hong Kong, Hong Kong, China|
3. Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China |
| |
| Abstract: | After dividing the source regions of the Yellow River into 38 sub-basins, the paper made use of the SWAT model to simulate streamflow with validation and calibration of the observed yearly and monthly runoff data from the Tangnag hydrological station, and simulation results are satisfactory. Five land-cover scenario models and 24 sets of temperature and precipitation combinations were established to simulate annual runoff and runoff depth under different scenarios. The simulation shows that with the increasing of vegetation coverage annual runoff increases and evapotranspiration decreases in the basin. When temperature decreases by 2oC and precipitation increases by 20%, catchment runoff will increase by 39.69%, which is the largest situation among all scenarios. |
| |
| Keywords: | distributed hydrological model source regions of the Yellow River scenario simulation changing environment |
|
| 点击此处可从《地理学报》浏览原始摘要信息 |
| 点击此处可从《地理学报》下载免费的PDF全文 |
|
