Li Shiji; Sun Zhigang; Tan Minghong; Li Xiubin
Source Publicationjournalofgeographicalsciences
AbstractDifferent 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.
Funding Project[Projects of International Cooperation and Exchanges NSFC] ; [Major Research Plan of the National Natural Science Foundation of China] ; [National Natural Science Foundation of China]
Document Type期刊论文
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Li Shiji,Sun Zhigang,Tan Minghong,et al. effectsofruralurbanmigrationonvegetationgreennessinfragileareasacasestudyofinnermongoliainchina[J]. journalofgeographicalsciences,2016,26(3):313.
APA Li Shiji,Sun Zhigang,Tan Minghong,&Li Xiubin.(2016).effectsofruralurbanmigrationonvegetationgreennessinfragileareasacasestudyofinnermongoliainchina.journalofgeographicalsciences,26(3),313.
MLA Li Shiji,et al."effectsofruralurbanmigrationonvegetationgreennessinfragileareasacasestudyofinnermongoliainchina".journalofgeographicalsciences 26.3(2016):313.
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