Application Of RS And GIS In Vulnerability Research And Tourism Resources Evaluation

For a long time, people recklessly developed and extracted forest resources in Da Fu'an scenic spot, which resulted in air pollution, water pollution, soil pollution, habitat destruction, forest resources loss, productivity and ecological function reduction, biodiversity loss and soil erosion. In this study, we collected TM image (30m×30m), 1:50000 land use map in 2002 , 1:10000 topographic map in 2004 and other data.Based on RS and GIS, data were processed, and database of Da Fu'an scenic spot was established, and NDVI, topographical factors as well as landscape information were extracted. Then suitable evaluation unit and evaluation factors were chosen, and evaluation factors were quantitatively classified, and vulnerability evaluation was done. At last, we analyzed the relationship of vulnerability evaluation and tourism resources assessment, and we supported environmental protection planning and ecotourism development solution. Based on the analysis, the following conclusions:(1)Serious fragile area and middle fragile area account for 4.65% and 28.77%, and they are in the southeastern Da Fu'an scenic spot which is the entrance and developed early, light fragile area accounts for 46.97%, and it is the most part of five parts in the west of Da Fu'an scenic spot, and this past is mainly forest land; slight fragile area accounts for 18.24%, and they are in the north of Da Fu'an scenic spot, where is higher elevation and steep slope; potential fragile area accounts for 0.3%, and it is the least part of five parts in the north of Da Fu'an Scenic Spot.(2) Most of tourism resources are in middle fragile area and account for 63%. Excellent tourism resources (the third and forth tourism resources) are mainly in the light fragile and middle fragile area. Common tourism resources (the first and the second tourism resources) are mainly in the light fragile area and account for nearly 60%. Except serious fragile area, the number of tourism resources and excellent tourism resources increase with the increase of vulnerability.