沙漠化逆转过程中榆林市植被净初级生产力时空格局及其影响因素
冯筱, 屈建军, 丁新辉, 田琴, 范庆斌

Temporal and spatial pattern of NPP in Yulin and its influencing factors during the desertification reversal
Xiao Feng, Jianjun Qu, Xinhui Ding, Qin Tian, Qingbin Fan
图2 2000—2020年榆林市植被NPP年际变化
Fig.2 Interannual variations of NPP in Yulin from 2000 to 2020