社会经济因素对中国西南喀斯特区植被恢复的贡献  

Contribution of socioeconomic factors to vegetation restoration in Karst areas of Southwest China

作　　者：袁二双 周秋文[2] 罗应忠 YUAN Ershuang;ZHOU Qiuwen;LUO Yingzhong(Center for Historical Geographical Studies,Fudan University,Shanghai 200433,China;School of Geography and Environment Science,Guizhou Normal University,Guiyang 550025,China)

机构地区：[1]复旦大学历史地理研究中心,上海200433 [2]贵州师范大学地理与环境科学学院,贵阳550025

出　　处：《生态学报》2024年第14期6265-6275,共11页Acta Ecologica Sinica

基　　金：教育部高校人文社会科学重点研究基地重大项目-复旦大学历史地理研究中心“十四五”规划项目(22JJD770020);国家自然科学基金委员会-贵州省人民政府喀斯特科学研究中心项目(U1812401)。

摘　　要：基于2000—2020年中国西南喀斯特地区的增强型植被指数(EVI)和植被净初级生产力(NPP)数据,将人口压力、农村经济和非农经济等社会经济因素进行细分,利用线性混合模型定量评估各社会经济因素对4和NPP的相对贡献率,探讨社会经济发展与植被恢复之间的关系。结果表明:(1)2000—2020年中国西南喀斯特区植被呈上升趋势。(2)整体社会经济因素对植被恢复的贡献大于自然因素,社会经济因素对EVI的贡献率为26.6%,对NPP的贡献率为41%。(3)在社会经济因素中,非农经济因素对植被恢复的相对贡献率最高,对EVI的贡献率为19.1%,对NPP的贡献率为14.7%。(4)在各细分社会经济因素中,第三产业对植被恢复的相对贡献率最高,其中对EVI和NPP的相对贡献率分别为11.8%和14.7%。综上所述,除了生态工程之外,其余社会经济因素对植被恢复的影响虽然具有间接性或者滞后性,但同样重要不可忽略。Based on the Enhanced Vegetation Index(EVI)and Net Primary Productivity(NPP)data of the Karst areas in Southwest China from 2000 to 2020,the socioeconomic factors such as population pressure,rural economy and non⁃farm economy were subdivided.A linear mixed model was used to quantitatively assess the relative contribution of each socio⁃economic factor to the EVI and NPP,and to explore the relationship between socio⁃economic development and vegetation restoration.The results showed that:(1)Vegetation in the Karst region of Southwest China presented an upward trend from 2000 to 2020.(2)Overall socio⁃economic factors contributed more to vegetation recovery than natural factors,and in this paper the contribution of socioeconomic factors to EVI was 26.6%and to NPP was 41%.(3)Among the socio⁃economic factors,the relative contribution of non⁃farm economic factors to vegetation restoration was the highest,with a contribution rate of 19.1%to EVI and 14.7%to NPP.(4)Among the subdivided socio⁃economic factors,the tertiary industry had the highest relative contribution to vegetation restoration,in which the relative contribution to EVI and NPP was 11.8%and 14.7%,respectively.In summary,except for ecological engineering,the influence of the remaining socioeconomic factors on vegetation restoration,although indirect or lagging,is equally important and cannot be ignored.

关 键 词：植被恢复 社会经济因素 贡献率 线性混合模型 喀斯特 

分 类 号：Q948[生物学—植物学]