[1]WANG Lei,LIU Tingting,XIE Jianzhi.Study on the Effect of Different Land Use Scenarios on Runoff in Qingshuihe Basin of Zhangjiakou Based on SWAT Model[J].Research of Soil and Water Conservation,2019,26(04):245-251.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 04
Page number:
245-251
Column:
Public date:
2019-06-11
- Title:
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Study on the Effect of Different Land Use Scenarios on Runoff in Qingshuihe Basin of Zhangjiakou Based on SWAT Model
- Author(s):
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WANG Lei1,2, LIU Tingting2, XIE Jianzhi2
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1. Institute of Plant Nutrition and Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China;
2. College of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding, Hebei 071000, China
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- Keywords:
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SWAT model; land use scenarios change; Zhangjiakou Qingshuihe basin; runoff
- CLC:
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P333;F301.24
- DOI:
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- Abstract:
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Land use is an important factor affecting regional climate and environmental change. Based on 3S technology, we analyzed the characteristics of land use types change in Qingshuihe basin of Zhangjiakou over the past 25 years. The SWAT model was established and its applicability in the Qingshuihe basin of Zhangjiakou was evaluated. Five land use change scenarios were set up to quantitatively analyze the impact of main land use types on runoff in the Qingshuihe basin of Zhangjiakou. The results showed that SWAT model had good applicability in Zhangjiakou Qingshuihe basin. From 1990 to 2015, the main land use types of Qingshuihe basin in Zhangjiakou were woodland, grassland and cultivated land. In the meanwhile, the sum of the three types of land use area accounted for more than 96% of the total basin area. The influence coefficient of woodland on runoff was 1.908 m3/(km2·h), and the influence coefficient of grassland on runoff was 1.836 m3/(km2·h), showing that both woodland and grassland had the function of intercepting runoff, and the role of woodland was greater than that of grassland. The influence coefficient of cultivated land on runoff was 3.168 m3/(km2·h), indicating that cultivated land played an important role in increasing runoff. Therefore, reasonable development of cultivated land resources, protection of forestland and grassland resources are conducive to improving the ecological environment quality of Zhangjiakou Qingshui River basin.