林业生态效率:时空特征与影响因素--基于我国31个省份数据的实证分析

Forestry Ecological Efficiency:Temporal and Spatial Characteristics and Influencing Factors:Empirical Analysis based on the Data of 31 Provinces in China

利用2007—2018年我国31省份的面板数据,使用三阶段DEA模型和多元线性回归模型探析我国林业生态效率的时空特征与影响因素。实证结果表明:我国林业生态效率呈现明显的时间波动趋势,先下降后上升;东北部地区林业生态效率值最高,其次是东部地区、西部地区和中部地区;林业用地面积、营林固定资产投资、林业从业人数和林业能耗对林业生态效率产生显著影响。

Based on the panel data of 31 provinces in China from 2007 to 2018,three-stage DEA model and multiple linear regression model were used to analyze the temporal and spatial characteristics and influencing factors of forestry ecological efficiency in China.The empirical results show that:China’s forestry ecological efficiency presents an obvious time fluctuation trend,which first decreases and then increases;the northeast region has the highest value of forestry ecological efficiency,followed by the eastern region,the western region and the central region;the area of forestry land,the investment in forestry fixed assets,the number of forestry employees and forestry energy consumption have a significant impact on forestry ecological efficiency.