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中国的山地面积十分广阔,山地城市的建设与发展具有重要的研究价值.重庆市是中国典型的山地城市,山地在城市建设中,既是城市发展的重要限制条件,也是城市形态的重要塑造条件.而南岸区中由长江水域至南山东山脊线这一区域则具有很强的山地城市代表性,具有地形地貌复杂、生态环境脆弱、历史文化悠久等诸多特征.近年来研究区的城市建设优化与山水环境的联系愈加紧密,但由于山地城市的特殊环境,海拔与地形地貌条件成为城市进一步发展的关键影响条件.故本文以此区域为例,以遥感数据与实地踏勘数据为主,结合政府数据与学者研究,通过GIS、ENVI等软件进行相关探究.首先,从景观梯度与城市建设两个方面出发,对城市景观梯度特征进行梳理,并分析各城市地段的发展状况.进而分析各梯度景观特征与各城市地段的耦合关系.最后针对分析结果,提出了维护山地生态和谐、重建山地特色文化、打造独特山地美学三项主要优化措施,希望能为研究区及相似的山地城市的未来发展提供一些帮助.“,”China has a vast area of mountains that are of great research interest. Chongqing is a typical mountain city in China. In urban construction, a mountain is not only an important limiting condition for urban development, but also an important condition for shaping the urban form. The area from the Yangtze River to the eastern ridge line of Nan Mountain in Nanan District is strongly representative of mountain cities with a complex landform, fragile ecological environment and a long history and culture. In recent years, the construction and optimization of this area are increasingly closely related to the landscape environment. However, due to the special environments of mountain cities, altitude and landform conditions become the key influencing conditions for further development of the cities. Therefore, this paper takes this region as an example, focuses on remote sensing and field measurement data, combines government data with that from scholarly research, and conducts relevant exploration through GIS, ENVI and some chart processing software. At first, from the perspective of the landscape gradient and urban con-struction, the characteristics of the urban landscape gradient are sorted out, and the developmental status of each urban area is analyzed. Then, the coupling relationships between the landscape features of each gradient and each urban area are analyzed. Finally, based on the analysis results, three major optimization measures are proposed to maintain ecological harmony in the mountainous area, reconstruct the mountain characteristic culture, and create unique mountain aesthetics, all with the hope of providing some guidance for the future development of the study area and similar mountain cities.