基于随机森林模型的内陆干旱区植被指数变化与驱动力分析: 以北天山北坡中段为例

张文强, 罗格平, 郑宏伟, 王浩, HAMDI Rafiq, 何惠丽, 蔡鹏, 陈春波

Analysis of vegetation index changes and driving forces in inland arid areas based on random forest model: a case study of the middle part of northern slope of the north Tianshan Mountains

ZHANG Wen-Qiang, LUO Ge-Ping, ZHENG Hong-Wei, WANG Hao, HAMDI Rafiq, HE Hui-Li, CAI Peng, CHEN Chun-Bo

表6 影响因子对归一化植被指数(NDVI)空间分布(静态)与变化(动态)的重要性统计

Table 6 Important statistics of the independent variables for spatial distribution (static) and change (dynamic) of normalized differential vegetation index (NDVI)

对静态NDVI的贡献率 Contribution to static NDVI 对NDVI变化的贡献率 Contribution to dynamic NDVI 2000 2005 2010 2015 2000-2005 2000-2010 2000-2015 气候因子 Climate factor 0.74 0.69 0.67 0.63 0.71 0.55 0.41 人类活动 Human activity 0.26 0.31 0.33 0.37 0.29 0.35 0.59