旅游开发影响下景观特征变化研究——以芦芽山自然保护区为例

基于不同年份的卫星像片,利用景观生态学的有关指数,对芦芽山自然保护区旅游开发影响下景观要素的基本特征和多样性进行了分析。结果表明:(1)从景观要素的基本特征看,在斑块总数、斑块总周长及其所占的比例、斑块总面积及其所占的比例上,在不同时期变化幅度不大。近期耕地的斑块数最多,草地的斑块总周长及其比例最大,灌木林地的斑块总面积及其比例最大。(2)景观要素的丰富度指数、均匀度指数、多样性指数和优势度指数在不同年份间变化都很小。结果说明芦芽山自然保护措施得力,植被景观得到比较有效的保护。居民用地和耕地的斑块数和总面积的变化,说明人为干扰对景观有一定的影响。

Change of Landscapes Characteristics with tourism development——A Case Study of Luya Mountain Nature Reserve

Based on the interpretation of landsat photo in different years, the characteristics and diversity of land scapes elements for Luya Mountain nature reserve with tourism development was analyzed by some ecological indi ces. It showed that:(1) for the basic characteristics of landscapes elements, all kinds of landscapes for Luya Mountain nature reserve in different years did not change obviously on the total number, perimeter and its proportion, area and its proportion of patch. In the recent years,the total number of farmland patch is the most, the total perimeter and proportion of grassland patch is the most, and the total area and proportion of shrub land patch is the most. (2) there are no little changes for the richness index, evenness index, diversity index and dominance index of landscape elements in different years. These results indicated that vegetation landscapes were protected effectively in Luya Mountain, which were benefit from better measures. However, the changes on the number and area of residential area and farmland patches showed that the artificial disturbance had certain impact on landscapes.