[1]XU Hai-li,PAN Yun,GONG Hui-li,et al.Analysis of the Climate Change and Hydrological Responses in Guishui River Basin from 1959 to 2000[J].Research of Soil and Water Conservation,2012,19(02):43-47.
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Analysis of the Climate Change and Hydrological Responses in Guishui River Basin from 1959 to 2000
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 02
Page number:
43-47
Column:
Public date:
2012-04-20
- Title:
- Analysis of the Climate Change and Hydrological Responses in Guishui River Basin from 1959 to 2000
- Keywords:
- Thornthwaite water—balance model; Mann—Kendall trend analysis; climate change; hydrological responses
- CLC:
- P333.1
- DOI:
- -
- Abstract:
- The lumped water balance of Guishui River Basin in Yanqing,Beijing was simulated with Thornthwaite model at a monthly interval from 1959 to 2000.The simulated hydrological components,including surface runoff,evapotranspiration and soil moisture,precipitation as well as air temperature were analyzed with the Mann—Kendall method for long-term trend and abrupt change investigation.The results showed that the study area had experienced an increase in air temperature and a decrease in precipitation since 1950s.Surface runoff,actual evapotranspiration and soil moisture were subsequently reduced.Compared with the period of 1959—1979,the air temperature had increased 2.45%,while the precipitation had decreased 8.57% from 1980 to 2000,resulting in the decrease in 8.86% for surface runoff,the decrease in 8.54% for evapotranspiration,and the decrease in 76.95% for soil moisture.The abrupt change of these hydrological components was observed to occur in 1975 and incdicated the drought trend.It can be concluded that the climate change has indeed impacted hydrological processes in this basin.
- References:
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