2001—2020年贺兰山东麓荒漠草原植被覆盖度演变

沈爱红, 佘洁, 石云, 吴涛, 梁咏亮, 董军, 马益婷

Changes in vegetation coverage of desert grasslands in the eastern foothills of Helan Mountains in 2001-2020

Aihong Shen, Jie She, Yun Shi, Tao Wu, Yongliang Liang, Jun Dong, Yiting Ma

表3 植被覆盖度变化趋势分析分级及面积占比

Table 3 FVC change trend analysis classification and area ratio

SFVC U值 FVC趋势 面积/km2 比例/% ≥0.0005 ≥1.96 明显改善 49.14 22.40 ≥0.0005 -1.96<U<1.96 轻微改善 155.41 70.84 -0.0005~0.0005 -1.96<U<1.96 稳定不变 4.33 1.97 <-0.0005 -1.96<U<1.96 轻微下降 9.82 4.48 <-0.0005 U<-1.96 明显下降 0.68 0.31