京津风沙源治理工程区生态环境质量及驱动力
王卫国, 谢欢, 冯国庆, 家淑珍

Ecological environment quality and driving forces in the Beijing-Tianjin Sandstorm Source Control Project area
Weiguo Wang, Huan Xie, Guoqing Feng, Shuzhen Jia
图6 2020年基于OPGD的各影响因素的分级优化
Fig.6 Zonal scale optimization of each explanatory variable based on the OPGD model in 2020