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Citation:

Vegetation Change Monitoring for the Natural Forest Protection Based on Spatial Analysis Techniques

  • Received Date: 2012-12-15
  • The number and spatiotemporal change characters of the vegetation in natural forest protection area of Qingshui County, Gansu Province, were investigated and the external and internal differences during the period of 1996 to 2004 were compared with two indicators: the vegetation area which came from the land-use classification map by the maximum likelihood classification (MLC) and the vegetation fraction by the NDVI dimidiate pixel model based on two Thematic Mapper (TM) images, by using spatial analysis and statistical techniques. The results indicated that the forest area and the vegetation fraction improved more evidently in the natural forest protection area than in the other area during the period of 1996 to 2004 in the study area. In addition, the degree of the vegetation change differed among different types of the natural forest protection area, the key ecological reserve area of the natural forest protection showed the most remarkable improvement. The results of the study suggest that this method is feasible and ecosystem conditions of the natural forest protection area have been improved as the result of the implementation of classified management policies.
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Vegetation Change Monitoring for the Natural Forest Protection Based on Spatial Analysis Techniques

  • 1. Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China

Abstract: The number and spatiotemporal change characters of the vegetation in natural forest protection area of Qingshui County, Gansu Province, were investigated and the external and internal differences during the period of 1996 to 2004 were compared with two indicators: the vegetation area which came from the land-use classification map by the maximum likelihood classification (MLC) and the vegetation fraction by the NDVI dimidiate pixel model based on two Thematic Mapper (TM) images, by using spatial analysis and statistical techniques. The results indicated that the forest area and the vegetation fraction improved more evidently in the natural forest protection area than in the other area during the period of 1996 to 2004 in the study area. In addition, the degree of the vegetation change differed among different types of the natural forest protection area, the key ecological reserve area of the natural forest protection showed the most remarkable improvement. The results of the study suggest that this method is feasible and ecosystem conditions of the natural forest protection area have been improved as the result of the implementation of classified management policies.

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