Quantitative calculation of eco-tourist's landscape perception: Strength,and spatial variation within ecotourism destination

Landscape perception is usually described through questionnaires according to the visitors' response. So it is difficult to describe the spatial variation of landscape perception, and the landscape perception factor is rarely involved in the ecotourism planning. In this paper, the authors propose a calculation method for the eco-tourists' perception degree on ecotourism destination according to landscapes' quality and quantity based on raster and grid data, which is very different to the angle of the tourists. The method includes a series of impact factors such as the landscape resource type, landscape resource grade, landscape visual range and its best viewing distance and orientation, ecological perception sensitive area etc. This calculation method can quantitatively describe ecotourists' perception degree at any location in the ecotourism destination, so it can also be used to identify the spatial variation of visitors' perception on landscapes. A case study is done, which is in Qixiagu scenic region, Wu'an national geological park in China. Based on Digital Elevation Model (DEM) and high-resolution satellite images, the authors build the virtual 3D landscape for the region. Using the tools of view-shed analysis, spatial overlay analysis, buffer and other methods on the GIS platform, eco-tourists' perception degree is calculated. The result shows that the value of perception degree varied from one location to another. Regions with higher perception value will be the gathering areas of eco-tourists, so the spatial differences for landscape perceptions should be taken into full consideration during the process of ecotourism destination planning.