【作者】 孔圆圆；

【导师】 徐刚；

【作者基本信息】 西南大学 ， 自然地理学， 2007， 硕士

【摘要】 地貌环境是城市的基础和下垫面，也是城市规划的重要前提。城市地区由于人类经济技术活动活跃，是产生地貌环境问题最多的地方。地貌环境对山地丘陵区城市的发展建设制约大，不合理的地貌利用容易引起地貌灾害的发生；特别是在用地面积和地形坡度都受极大限制的山城重庆，地貌灾害常常由不合理的土地利用而发生。本文基于在城镇化与城市建设中，山地丘陵区由于地貌环境的限制，需要进行城市功能提升和空间节约利用的目的，选择具有典型山地特色的重庆蔡家组团为研究区，进行地貌环境质量综合评价，以此为山地城市规划服务。全文包括六个部分：第一部分为地貌环境质量研究综述。介绍了地貌环境质量研究的历史与现状；阐述了论文的选题背景、研究意义以及研究内容、方法和技术路线等。第二部分为研究区概况，概括了研究区自然状况、社会经济状况和研究区在重庆都市圈中的定位。第三部分主要分析了地貌环境质量的各组成因素。结合野外实地调研和大量的室内工作，详细介绍了研究区地貌环境质量各要素提取的技术路线；对地貌形态各要素进行空间分析；还重点分析了研究区地貌灾害的分布与成因。根据城市规划的需要对研究区的地貌要素进行等级的划分，并进行专题地图制图，为后续研究建立了空间数据库。第四部分探索了基于山地城市规划的地貌环境质量综合评价的方法。其评价过程如下：首先根据研究区地貌环境的根本特点选取地貌环境质量综合评价的指标和基本评价单元，通过层次分析法，确定各评价指标的权重，根据评价指标的权重，选取重要性的因子确定综合评价的指标体系；然后使用综合指数法，用每个评价单元的地貌环境质量权重乘以其等级的赋值，计算出每个评价单元的地貌环境质量综合指数；最后根据每个评价单元的质量指数进行分级，运用GIS技术自动生成研究区地貌环境质量综合评价图。在此基础上，对研究区地貌环境质量整体和各个不同侧面质量状况的空间分异规律进行分析和研究。其评价结果为：在研究区中部和东部片区是第一等级用地主要分布地块，是作为城市规划建设的主要用地，占研究区总面积的49.04％。第二等级的地块主要分布在研究区四周，且分布在西边的第二等级用地与第三等级的地块相间分布，根据实际情况，这些是需要进行一定的工程措施或者防护措施后才可以进行利用的地块，其中第二等级地块面积占研究区总面积的22.69％；第三等级面积占研究区总面积的27.05％。第四等级的地块是地貌灾害发生地和潜在发生地，不适宜用做城市建设，其面积占研究区总面积的1.22％。第五部分重点分析了山地丘陵区地貌环境与城市发展的关系。结合山地城市发展的需要，提出了山地城市地貌环境可持续发展的对策。第六部分为结论与存在问题的讨论。由于地貌环境研究具有地方性，通过山地丘陵区地貌环境质量综合评价，得到下列结论：1)地貌环境质量是由多层次、多因素相互联系而组成的复杂系统。对地貌环境质量评价时，其所处的地貌环境不同，选择的地貌要素也不同。在山地城市，需要侧重分析地貌条件对城市建设的限制以及滑坡、危岩、崩塌和泥石流等主要地貌灾害对城市建设的影响；2)地貌环境质量评价必须突出评价目的才能使评价结果具有实践意义。在城市规划的目的下，对山地丘陵区地貌环境质量进行评价，其评价结果为城市规划服务。3)山地丘陵区地貌环境质量由地表组成物质、地貌条件和地貌灾害三部分要素组成，三方面对城市规划和建设都起到重要的影响作用。通过层次分析法知道，在山地丘陵区地貌要素是综合评价最重要的因素。更多还原

【Abstract】 Geomorphical environment is the foundation and surface of a city, as well as theprecondition of the urban planning. Urban areas hold the most geomorphicalenvironment problems because of its positive economical and technical efforts.Geomorphical environment greatly restricts the development of the mountainous orhilly urban areas, and unreasonable geomorphical utilization easily causes geomorphicaldisasters. Chongqing, a mountainous city, enormously restricted by its usable areas andsloping topography, always experiences geomorphical disasters because of unreasonableland-use. In this paper, Chongqing Caijia group, a typical mountainous region isespecially researched for comprehensive evaluation of geomorphical environmentquality, on the purpose of promoting urban function, economizing land-use during thepractice of urbanization and urban construction and serving for the mountainous urbanplanning.Six major parts are included in this paper.The first part—a summary of geomorphical quality research, includes the historyand current condition of such researches, and research background, significance,contents, methods and techniques, etc.The second part—a general introduction of research region, generalizes its naturalcondition, social economy condition and its role in the metropolis circle of Chongqing.The third part covers an analysis of the distinctive factors of geomorphicalenvironment quality. Based on on-the-spot investigation and enormous lab experiments,the research techniques and directions on every factor of geomorphical environmentquality are precisely introduced. Then a space analysis about the factors is given. Andthe disparity and causes of geomorphical disasters in research region are speciallystressed. According to the need of urban planning, geomorphical factors are classified, followed by a diagram on special subject for database contribution to the followingresearches.The forth part shows the ways of comprehensive evaluation to geomorphicalenvironment quality bases on mountainous urban planning. Here comes the process ofevaluation: Firstly, the comprehensive evaluation quota and evaluation unit ofgeomorphical environment quality are chosen according to the geomorphicalenvironment characteristics of the research region. And by AHP, ensure the weight ofevaluating quotas and pick out the key factors to fix the quota system. Then, bycomposite index method, calculate geomorphical environment quality composite indexof each evaluating unit (the weight of each evaluating unit * the value of its grade). Atlast, classify each evaluating unit according to its quality index and make acomprehensive evaluation diagram of geomorphical environment quality in researchregion by GIS. After that, make an analysis and study on the whole geomorphicalenvironment quality as well as the space disparity regularity of its quality conditionfrom different aspects. The result of the evaluation indicates that the middle and easternareas, taking the proportion of 49.09% of the total size of the research region, mostlybelongs to the first grade, which can be used for urban planning and construction. Thesecond grade, with the proportion of 22.69%, mostly stretches around the researchregion. But the western part of the second grade happens to alternate with the thirdgrade land, which makes proper projects or protective measures are needed for land-use.The third grade land takes up 27.05%. The forth grade land, with the proportion of1.22% in total, is the area or potential area of geomorphical disasters, which certainlyshould be avoided for urban planning.The fifth part mainly analyzes the relationship between the mountainousgeomorphical environment and urban development. The countermeasures forsustainable development of the mountainous geomorphical environment are come uplater based on the necessity of the development of mountainous cities.The sixth part makes a conclusion and some existing problems are discussed, too.Researches of geomorphical environment are found inevitably in a particular place, soconclusions as the following are drawn under the evaluation: (1) geomorphicalenvironment quality is a complicated system consisted by many interacted factors. Eachgeomorphical environment should be matched distinctive factor during evaluation. It’sshould be stressed that the geomorphical condition makes restriction to urbanconstruction and the geomorphical disasters like landslides, dangerous rocks, debris flows, etc, impede the urban development. (2)The only way to make the evaluationresult practical used is to emphasize the purpose of evaluation. Take evaluation forgeomorphical environment quality of mountainous regions on the purpose of urbanplanning and naturally the evaluation result serves the urban planning at last. (3)Mountainous environment quality consists of the land surface foundation, geomorphicalcondition, and geomorphical disasters. These three aspects play important roles in bothurban planning and urban construction. It’s known from AHP, geomorphical factors arethe most essential factors for comprehensive evaluation in mountainous regions.更多还原