产权分割对森林生态系统完整性的影响机制研究  

Research on the impact mechanism of property right division on the integrity of forest ecosystem

作　　者：曾贤刚[1] 段存儒 ZENG Xian-gang;DUAN Cun-ru(School of Environment and Natural Resources,Renmin University of China,Beijing 10872)

机构地区：[1]中国人民大学环境学院,北京100872

出　　处：《中国环境科学》2023年第9期5011-5019,共9页China Environmental Science

基　　金：中国人民大学2021年度“中央高校建设世界一流大学(学科)和特色发展引导专项资金”(21XNL006)。

摘　　要：过度的产权分割会导致“围栏效应”而降低森林生态系统完整性.基于第6、7、8三次国家森林资源清查数据,以山西省、吉林省和江西省作为研究对象,使用广义渐进双重差分方法分析产权分割对森林生态系统完整性的影响机制.结果表明:各省森林生态系统完整性水平不高,且地区间差异明显.产权分割对森林生态系统完整性有负面作用,会导致群落组成与结构指数的显著下降,但对景观格局则会产生正面影响.生物多样性在产权分割与森林生态系统完整性之间起到中介作用,产权分割对生物多样性有负面影响,并通过改变生物多样性对生态系统完整性产生负面作用.本研究为推动自然资源产权制度的进一步创新提供了现实参考.Excessive property right division leads to fragmentation of forest ecosystem,resulting in"fence effect"and reducing the integrity of forest ecosystem.Based on the data of the 6th,7th and 8th national forest resources inventory,this study takes Shanxi Province,Jilin Province and Jiangxi Province as the research objects,and uses the generalized progressive DID method to analyze the impact mechanism of property right division on forest ecosystem integrity.The level of forest ecosystem integrity in each province is not high,and the regional difference is obvious.The property right division has a negative effect on the forest ecosystem integrity,which leads to a significant decline in the community composition and structure index,but will have a positive impact on the landscape pattern.Biodiversity plays an intermediary role between property right division and forest ecosystem integrity.Property right division has a negative impact on biodiversity,and has a negative impact on ecosystem integrity by changing biodiversity.This study provides a practical reference for further innovation of the property rights system of natural resources.

关 键 词：产权分割 森林 生态系统完整性 双重差分 

分 类 号：X32[环境科学与工程—环境工程] X171