乡村人口迁出对生态脆弱地区植被覆被的影响——以内蒙古自治区为例（英文）

编号 zgly0001584376

文献类型 期刊论文

文献题名 乡村人口迁出对生态脆弱地区植被覆被的影响——以内蒙古自治区为例（英文）

作者 李仕冀  孙志刚  谈明洪  李秀彬 

作者单位 KeyLaboratoryofEcosystemNetworkObservationandModeling  InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  UniversityofChineseAcademyofSciences  KeyLaboratoryofLandSurfacePatternandSimulation  InstituteofGeographicS 

母体文献 Journal of Geographical Sciences 

年卷期 2016年03期

年份 2016 

分类号 Q948 

关键词 rural-urbanmigration  agriculturallabor  vegetationgreenness  NDVI  InnerMongolia 

文摘内容 Different government departments and researchers have paid considerable attention at various levels to improving the eco-environment in ecologically fragile areas. Over the past decade, large numbers of people have emigrated from rural areas as a result of the rapid urbanization in Chinese society. The question then remains: to what extent does this migration affect the regional vegetation greenness in the areas that people have moved from Based on normalized difference vegetation index(NDVI) data with a resolution of 1 km, as well as meteorological data and socio-economic data from 2000 to 2010 in Inner Mongolia, the spatio-temporal variation of vegetation greenness in the study area was analyzed via trend analysis and significance test methods. The contributions of human activities and natural factors to the variation of vegetation conditions during this period were also quantitatively tested and verified, using a multi-regression analysis method. We found that:(1) the vegetation greenness of the study area increased by 10.1% during 2000–2010. More than 28% of the vegetation greenness increased significantly, and only about 2% decreased evidently during the study period.(2) The area with significant degradation showed a banded distribution at the northern edge of the agro-pastoral ecotone in central Inner Mongolia. This indicates that the eco-environment is still fragile in this area, which should be paid close attention. The area where vegetation greenness significantly improved showed a concentrated distribution in the southeast and west of Inner Mongolia.(3) The effect of agricultural labor on vegetation greenness exceeded those due to natural factors(i.e. precipitation and temperature). The emigration of agricultural labor improved the regional vegetation greenness significantly.