Effects of Landuse on Ecological Restoring Force in Qinling Mountainous Region
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    Abstract:

    Shangluo City is a typical area of Qinling mountainous region, which is an ecologically sensitive area where ecological protection is of great significance, using ETM+ images and NDVI of MODIS, the study investigated the different influence of land use degree on vegetation coverage. The influences of human activi-ties on lands were analyzed throughout and locally. Statistical analysis was conducted on the "cells", which was the towns and districts of the city. The land use degrees were then calculated globally over the whole study area and locally on the cells. After the spatial autocorrelation being computed, the land use degrees were found closely correlated with the cumulative percentages of NDVI. A formula was proposed using both the land use degrees and NDVIs, and was then applied to analyze the impacts of land use change on the envi-ronment during the past 9 years. The results show that in most of the region, the ecological environment was improving faster than or nearly equal to the land use degradation. This is a remarkable achievement made by ecological restoration efforts in study area. The ecological restoring forces were strong in most towns during the 9 years, which means that the related policies were enforced well in both economic development and envi-ronmental protection. However, the land use degrees in some towns still need to be improved, and more at-tention should be paid to the regional ecological environment.

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杨海娟,温晓金,刘焱序,文雯.秦岭土石山区土地利用程度对生态恢复力的影响评价[J].水土保持通报英文版,2012,(4):261-266

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History
  • Received:November 11,2011
  • Revised:
  • Adopted:
  • Online: November 25,2014
  • Published: