[1]LI Jia,ZHANG Xiao-yong,YANG Yan-zhao.SWAT Model of Runoff Study under Different Land Use Land Cover Scenarios in Source Region of the Yangtze River[J].Research of Soil and Water Conservation,2012,19(03):119-124,128.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 03
Page number:
119-124,128
Column:
Public date:
2012-06-20
- Title:
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SWAT Model of Runoff Study under Different Land Use Land Cover Scenarios in Source Region of the Yangtze River
- Author(s):
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LI Jia1,4, ZHANG Xiao-yong2,3, YANG Yan-zhao3
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1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. National Earthquake Response Support Service, CEA, Beijing 100049, China;
3. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
4. Graduate University of the Chinese Academy of Sciences, Beijing 100101, China
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- Keywords:
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SWAT; runoff simulation; land use and land cover scenario scenarios change
- CLC:
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P333.1
- DOI:
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- Abstract:
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Land use and land cover change play an important role in catchment hydrology cycle. In order to analyze the hydrology effect caused by land use and land cover change, runoff and depth of runoff in the source region of the Yangtze River basin was estimated based on land use and land cover scenarios and SWAT model. The result showed: runoff decreased 16.7% with 304.12 m3/s and depth of runoff decreased 14.02 mm under the situation of forest and grass land covering whole area of the basin; runoff increased 16.1% with 424.32 m3/s and depth of runoff increased 13.49 mm when the forest and grass land area changed into sand and bare land; runoff and depth of runoff increased most when there were no forest and grass land, the runoff reached to 469.67 m3/s, increased 28.4%, depth of runoff increased 23.88 mm; there was a little increase of forest and grass land growing perfectly, runoff and depth of runoff increased 5.6% and 4.72 mm. It is obvious that increase of forestland and grassland made the runoff decrease and the increase of sand and bare land led to rise of runoff.