[1]DU Shixun,GUO Xinya,RONG Yuejing.Study on the Water Conservation Function Based on Budyko Hypothesis and SCS-CN Method in the Headstream Area of the Qinhe Basin[J].Research of Soil and Water Conservation,2018,25(01):147-152.
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Study on the Water Conservation Function Based on Budyko Hypothesis and SCS-CN Method in the Headstream Area of the Qinhe Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 01
Page number:
147-152
Column:
Public date:
2018-02-28
- Title:
- Study on the Water Conservation Function Based on Budyko Hypothesis and SCS-CN Method in the Headstream Area of the Qinhe Basin
- Keywords:
- headstream area; water conservation; Budyko hypothesis; SCS-CN method
- CLC:
- P333
- DOI:
- -
- Abstract:
- The headstream area, as an important ecological function area, has important ecosystem services. The spatial distribution characteristics of water conservation function and water conservation capacity of different land use types, elevation and slope in the headstream area of the Qinhe basin were analyzed using Budyko hypothesis and SCS-CN method. The results indicated that:(1) the 306.48 millimeters of water depth and the 419 million cubic meters of water were conserved in the study area; (2) water conservation functions of different land use types were different; the deciduous broadleaf and evergreen coniferous forests conserving 330.41 mm and 364.53 mm of mean water were the main contributors to water conservation, of which contribution rates were 43.99% and 42.00%, respectively; (3) water conservation differred with attitudes; the areas with the elevation of 1 000～1 500 m were the main parts of water conservation function and the areas with the elevations of 1 000～1 500 m provided the largest water conservation which was 401.71 mm; (4) the different slopes also had different effects on water conservation; the mean values of water conservation on steep slopes, abrupt slopes and risk slopes were 373.62 mm, 368.32 mm and 363.94 mm, respectively.
- References:
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1900-01-01