【摘要】 森林承载力是区域森林可持续发展的重要研究内容，本文通过PSR模型，选取代表性指标构建模型，用极差法以及主成分分析法确定指标权重，以综合指数法确定2011-2017京津冀三地的森林承载力变化.结果表明，三地森林承载力存在一定差异，整体呈上升趋势，河北省森林承载能力最高，北京市次之，天津市最差.更多还原

【Abstract】 Forest carrying capacity is an important research content of regional forest sustainable development. In this paper, through the PSR model, representative indicators were selected to build a model, index weights were determined by range method and principal component analysis method, and changes of forest carrying capacity in Beijing, Tianjin and Hebei regions from 2011 to 2017 were determined by comprehensive index method. The results show that the forest carrying capacity of the three places has some differences, and the overall bearing capacity is on the rise. The forest carrying capacity of Hebei province is the highest, that of Beijing city is the second, and that of Tianjin city is the worst.更多还原