黄土高原植被覆盖变化对生态系统服务影响及其阈值
张琨, 吕一河, 傅伯杰, 尹礼唱, 于丹丹

The effects of vegetation coverage changes on ecosystem service and their threshold in the Loess Plateau
ZHANG Kun, LYU Yihe, FU Bojie, YIN Lichang, YU Dandan
图1 黄土高原区域概况及生物气候区分区
Fig. 1 The general situation of the Loess Plateau and the division of the bioclimatic zones