基于30 m×30 m分辨率陆地卫星(Landsat)遥感数据分析1987—2018年岔巴沟流域植被覆盖度的时空演变特征并生成流域土壤面蚀等级图，分析其对流域产流产沙的影响。结果表明:岔巴沟流域植被覆盖度整体呈现快速增长趋势，从1987年的24.7%增加至2018年的53.1%；流域植被覆盖度构成发生很大转变，2002年以后中、高覆盖度区域比例大幅上升，增长主要集中在丘陵沟壑地区；随着植被覆盖度的增长，流域产流产沙呈现减少趋势，地表面蚀有所减少，植被对产沙影响大于对产流影响。
Based on the 30 m×30 m resolution Landsat remote sensing data, the temporal and spatial evolution characteristics of vegetation coverage in Chabagou Watershed from 1987 to 2018 were analyzed, and the soil surface erosion level map of the watershed was generated to analyze its impact on runoff generation and sediment yield in the watershed. The results show that the vegetation coverage of Chabagou Watershed was increasing rapidly, from 24. 7% in 1987 to 53. 1% in 2018. The composition of vegetation coverage in the watershed had changed a lot. Since 2002, the proportion of medium and high coverage areas increased significantly, and the growth was mainly concentrated in hilly and gully areas. With the increase of vegetation coverage in the watershed, the runoff generation and sediment yield decreased, and the surface erosion decreased. The impact of vegetation on sediment yield was greater than that on runoff generation.
吴志勇,侍恒,何海,等.岔巴沟流域植被变化特征及其对水沙的影响[J].水资源保护,2020,36(1):31-37.(WU Zhiyong, SHI Heng, HE Hai, et al. Characteristics of vegetation change and impact on runoff and sediment in Chabagou Watershed[J]. Water Resources Protection,2020,36(1):31-37.(in Chinese))复制