【摘要】 运用数字地形分析技术对DEM进行处理分析以获取地形地貌信息,是对复杂山区景观资源和地质环境调查的重要手段.以湖北恩施腾龙洞大峡谷地质公园为例,基于ASTER GDEM数据对岩溶地区的坡度、坡向、地形起伏度和地表切割深度等地形地貌特征因子进行提取和全面分析.结果显示研究区地上和地下岩溶地貌形态如岩溶峡谷和岩溶洞穴等广泛发育且品位很高,地质景观旅游资源开发潜力巨大;同时研究区地形破碎,地表坡度、起伏度、切割深度均较大,生态环境极为脆弱,应注意加强环境治理和景观保护工作.更多还原

【Abstract】 It is an important technology for investigating the landscape resources and geological environment to grasp the data and characteristics of the regional topography by using digital terrain analysis.Taking Tenglongdong and Grand Canyon Geopark in Enshi,Hubei province as an example,we extracted and analyzed the topography of slope,aspect,surface rolling and surface incision of the Karst area on the basis of ASTER GDEM.The results showed that the ground and underground karst landforms such as karst valleys and karst caves had developed widely and been of high quality in the study area,with great potential of being developed as tourist resources.Meanwhile,the study area is a typical area of carbonate rocks with broken surface and larger slope,surface rolling and surface incision.Therefore,the ecological environment of this area is very vulnerable and great attention should be paid to the environmental management and landscape protection.更多还原