黑河流域2001~2017年植被变化特征及其可延续性评价

谭美宝,冉有华,苏阳,李新,杜得彦,廉耀康

Characteristics and Sustainability Evaluation of Vegetation Change in Heihe River Basin during 2001 to 2017

Meibao Tan,Youhua Ran,Yang Su,Xin Li,Deyan Du,Yaokang Lian

表1 2001~2017年黑河流域上、中、下游植被覆盖分级变化趋势的面积百分比

Tabel 1 Area percent of different vegetation change trend levels in the upper, middle, lower reaches of the Heihe river basin during 2001~2017

变化趋势 上游区/% 中游绿洲区/% 中游非绿洲区/% 下游绿洲区/% 下游非绿洲区/% 明显减少(k<-0.005) 0.36 1.84 0.16 1.23 0.10 轻微减少(-0.005≤k<-0.001) 4.26 4.66 4.57 4.99 4.86 稳定不变(-0.001≤k<0.001) 13.02 6.87 16.03 12.66 57.76 轻微增加(0.001≤k<0.005) 62.69 38.55 74.20 45.24 35.24 明显增加(k≥0.005) 19.67 48.08 5.04 35.88 2.04