标题: Effects of population spatial redistribution on vegetation greenness: A case study of Chongqing, China

作者: Lu, D (Lu, Dan); Wang, YH (Wang, Yahui); Yang, QY (Yang, Qingyuan); Wang, ZP (Wang, Zhanpeng); Lin, AW (Lin, Aiwen); Tang, YX (Tang, Yuxue); Li, YQ (Li, Yuanqing)

来源出版物: ECOLOGICAL INDICATORS 卷: 138 文献号: 108803 DOI: 10.1016/j.ecolind.2022.108803  出版年: MAY 2022

摘要: With the continuous increase in urbanization and non-farm wages, many rural labor forces have transferred to urban areas, significantly changing the population distribution and affecting vegetation restoration and ecological environment improvement. This study analyzed the spatiotemporal patterns of vegetation in Chongqing from 2000 to 2018 based on the MODIS EVI dataset, and 862 samples were randomly selected to quantitatively analyze the contribution degree of population emigration to vegetation greenness by using the multivariate linear regression model under the conditions of controlling climate, topography, and policy factors. The results showed that the vegetation in Chongqing presented a significant improvement trend. Human ac-tivities played a dominant role in the vegetation restoration in Chongqing from 2000 to 2018. The contribution of population spatial redistribution to vegetation changes was 62.47%, and the contributions gradually decreased with increasing elevation, which were 73.90%, 45.02%, and 17.87% in the low, medium, and high altitude areas, respectively. Furthermore, the Grain-for-Green program significantly affected vegetation variation, and the project had the greatest ecological benefits in medium-altitude areas.

作者关键词: Population spatial redistribution; Enhanced vegetation index; Human activities; Vegetation variation

地址: [Lu, Dan; Lin, Aiwen] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Lu, Dan; Wang, Yahui; Yang, Qingyuan; Li, Yuanqing] Southwest Univ, Sch Geog Sci, Chongqing 400715, Peoples R China.

[Wang, Zhanpeng] Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China.

[Tang, Yuxue] Chongqing Meteorol Sci Inst, Chongqing 401147, Peoples R China.

通讯作者地址: Yang, QY (通讯作者)，Southwest Univ, Sch Geog Sci, Chongqing 400715, Peoples R China.

电子邮件地址: yizyang@swu.edu.cn

影响因子：4.958