Evaluation of Landscape Visual Sensitivity in Zhangjiajie National Forest Park Based on GIS
The 24 representative landscape nodes in Zhangjiajie National Forest Park are taken as research objects for landscape visual sensitivity evaluation.Selecting four sensitivity evaluation indexes,namely,relative slope,relative distance,visual probability and conspicuity,the objective level is based on ArcGIS spatial analysis method,and the subjective level was supplemented by the expert evaluation method,and constructing an evaluation system using the AHP hierarchical analysis method to classify the visual sensitivity levels of Ⅰ,Ⅱ,Ⅲ and Ⅳ.The results show that there are 6 attractions at Ⅰ level,8 attractions at Ⅱ level,6 attractions at Ⅲ level and 4 attractions at Ⅳ level of landscape visual sensitivity.Summarise the characteristics of Zhangjiajie National Forest Park's attractions in terms of high and low visual sensitivity ranking of landscapes:(1)by elevation,top of mountain＞bottom of mountain;(2)by spatial type,cliff＞waterfront＞humanities＞underwoods;(3)by scenic area,Yuan-jiajie＞Yangjiajie＞TianziMount＞Huangshizhai＞Golden Whip Creek＞Ten Mile Gallery.Through quantitative research to evaluate the landscape visual sensitivity of the attractions,and based on the evaluation results to put forward the corresponding recommendations for landscape protection and management of the study area,hoping to provide a basis and scientific guidance for the development and construction of forest parks and landscape planning.
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