Study on runoff and sediment transport under LUCC in typical watershed of Loess Plateau
Analysis of runoff and sediment transport change based on land use data from 1986 to 1994, and from 1995 to 2004, using statistical comparison and frequency distribution curves reveals the following. First, land use and forest vegetation had significant impact on annual runoff and sediment transport in the watershed of Loess Plateau. Runoff generation and annual sediment transport in the Iater period, in which vegetation cover was increased and area of slope land and bare land was decreased, was lower than that in the former period. On wet, normal, and dry years, runoff coefficients in the latter period were reduced by 51％, 85％, and 84％, respectively in comparison with the former period. Second, impact of land use and forest vegetation on watershed runoff sediment transport had seasonal characteristics. Under the same precipitation conditions, predictions for the latter period were reduced by 50％ to 100％ compared with that in the former period. Finally, peak discharge had positive response to land use and forest vegetation within the same frequent rainfall intensity, which showed a decreasing trend.
runoff sediment transport LUCC Loess Plateau
Guodong Jia Xinxiao Yu Zhongbao Xin Qingyun Li Jiangkun Zheng Yousheng Wang
School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China College of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, China College of Soil and Water Conservation,Beijing Forestrv Universitv,Beijing,100083,China
国际会议
西安
英文
667-672
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）