基于地理探测器的科尔沁沙地植被NDVI时空变化特征及其驱动因素

陈雪萍, 赵学勇, 张晶, 王瑞雄, 卢建男

Variation of NDVI spatio-temporal characteristics and its driving factors based on geodetector model in Horqin Sandy Land, China

CHEN Xue-Ping, ZHAO Xue-Yong, ZHANG Jing, WANG Rui-Xiong, LU Jian-Nan

表4 科尔沁沙地2001-2020年归一化植被指数(NDVI)动态变化

Table 4 Dynamic changes of Normalized Difference Vegetation Index (NDVI) in Horqin Sandy Land during 2001-2020

NDVI分级 NDVI class 2001 2010 2020 面积 Area (km2) 比例 Proportion (%) 面积 Area (km2) 比例 Proportion (%) 面积 Area (km2) 比例 Proportion (%) <0.2 4 696 2.79 6 905 4.10 7 265 4.31 0.2-0.4 114 900 68.20 116 634 69.22 85 884 50.97 0.4-0.6 48 028 28.50 44 176 26.22 70 181 41.66 ≥0.6 866 0.51 775 0.46 5 160 3.06