【作者】 刘娜；

【导师】 谭瑛； 朱兴彤；

【作者基本信息】 东南大学 ， 风景园林（专业学位）， 2023， 硕士

【摘要】 国家深化改革中,把“山水林田湖草”当作统一的生命共同体,注重生态文明建设的完整性和系统性。然而,山地河谷地形的切割作用对城市空间形态产生了很大影响,导致在坪坝区发展的山地河谷型城市面临种种问题,主要表现为城市土地资源匮乏、城市空间格局散乱、交通不便、生态环境脆弱等。本文以山地河谷型城市为研究对象,充分考虑该类城市地形地貌的特殊性,从地理单元视角出发,充分挖掘城市中地形、地物(水体、植物、建筑等)要素的特征,以营造合理适宜的城市景观形态为目标,研究该类城市景观形态的边界、结构、区块等方面的内容,以期能够适应我国新阶段转型背景下的城市发展。本文主要从地理单元的视角出发,研究山地河谷型城市的景观形态,界定山地河谷型城市、景观形态的研究范畴,探讨综述山地河谷型城市景观形态的理论基础,分析现状此类城市规划建设情况,建构山地河谷型城市景观形态研究的数字化模型,以理论体系为主线,分步骤运用相应的数字化方法建构城市景观形态。以重庆市万州区作为研究案例,分析万州区城市景观形态,总结归纳现状城市景观形态规划建设存在的问题,提出相应的管控优化策略,以期为今后相关城市的规划建设提供依据。论文的主要内容及成果如下:(1)对山地河谷型城市的相关概念理论进行研究与探讨,对国内外的研究文献与实践项目进行梳理与总结。界定地理单元、山地河谷型城市、景观形态的概念,确定本文的研究范畴,分析该类城市现状基本概况与具体特征,明确该类城市研究理论基础。(2)形成了一套全流程、数字化的景观形态构建技术方法。通过边界构型—结构构型—区块构型的基本理论构建模式,结合对象界定识别—特征提取—模式划分—类型解释四个步骤,建构形成山地河谷型城市景观形态数字化研究模型。通过对象数字化界定识别,运用要素生成模块法,分别提取山地要素、水体要素、植物要素、城市要素;通过特征数字化提取,运用指标计算模块法,建构相应指标体系,分析各单一要素景观形态特征,明确不同要素边界构型;接着通过模式数字化划分,运用空间信息图形法确定结构构型;最后通过类型数字化解释,运用空间聚类分析法,明确城市景观形态区块构型。以理论框架为主导,依据数字化模型构建过程,总结归纳山地河谷型城市景观形态的结构构型类型与区块构型。(3)以重庆市万州区为例,将本研究搭建的景观形态数字化研究方法进行应用实践。通过对万州区进行边界构型—结构构型—区块构型,分析该城市景观形态特征,引入最小阻力模型,总结现状建设在结构构型和区块构型方面的问题,并提出相应的管控策略,以期对今后相关城市规划建设提供依据。更多还原

【Abstract】 In the deepening of reform,the state regards "landscapes,forests,lakes and grasses" as a unified community of life,and pays attention to the integrity and systematization of ecological civilization construction.However,the cutting effect of mountain valley topography has a great impact on the urban spatial form,resulting in various problems faced by mountainous valleytype cities developed in Pingba District,mainly manifested as lack of urban land resources,scattered urban spatial pattern,inconvenient transportation,and fragile ecological environment.This study focuses on mountainous and valley-type cities and takes into account the unique characteristics of their topography and geomorphology,fully explores the characteristics of topography and features(water,plants,buildings,etc.)in the city from the perspective of geographical units,and studies the boundaries,structures,blocks and other aspects of such urban landscape forms with the goal of creating a reasonable and suitable urban landscape form,so as to adapt to the urban development under the background of China’s new stage transformation.This paper mainly studies the landscape form of mountain valley city from the perspective of geographical unit,defines the research scope of mountain valley city and landscape form,This research examines and evaluates the theoretical foundations of the urban landscape form in mountainous and valley-type cities,while also conducting an analysis of the current status of urban planning and construction in such areas.constructing a digital model for the study of mountain valley urban landscape form,taking the theoretical system as the main line,and useing the corresponding digital methods to construct urban landscape form step by step.This study focuses on Wanzhou District in Chongqing as a case study to analyze the urban landscape form in the district.It identifies and summarizes the current issues and challenges in terms of urban planning and construction of the landscape form in Wanzhou District.Furthermore,it proposes relevant control and optimization strategies as potential solutions.The findings and strategies from this research can serve as a valuable reference for future planning and construction efforts in similar cities.The paper primarily focuses on the following key aspects and accomplishments:(1)This study delves into the concepts and theories related to mountain valley cities.It provides an analysis of existing research literature and practical projects conducted both domestically and internationally.The paper defines key terms such as geographical unit,mountainous valley-type city,and landscape form,establishing the research scope.It also examines the current situation of these cities,highlighting their unique characteristics.Additionally,the study clarifies the theoretical foundation underlying urban research in mountainous valley cities.(2)A set of full-process,digital landscape form construction technology methods have been formed.Through the basic theoretical construction mode of boundary configurationstructural configuration-block configuration,combined with the four steps of object definition recognition,feature extraction,pattern division,and type interpretation,a digital research model of mountain valley-type urban landscape form is constructed.Through the digital definition and identification of objects,the element generation module method is used to extract mountain features,water elements,plant elements and urban elements respectively.Through the digital extraction of features,the index calculation module method is used to construct the corresponding index system,analyze the morphological characteristics of each single element landscape,and clarify the boundary configuration of different elements.Then,through the digital division of patterns,the spatial information graphics method is used to determine the structural configuration.Finally,through the digital interpretation of types,the spatial cluster analysis method is used to clarify the block configuration of urban landscape morphology.Based on the theoretical framework,according to the construction process of digital model,the structural configuration types and block configurations of mountainous valley-type urban landscape forms are summarized.(3)Taking Wanzhou District of Chongqing as an example,the digital research method of landscape form constructed in this study was applied and practiced.This research focuses on Wanzhou District and conducts boundary configuration,structural configuration,and block configuration analysis to understand the morphological characteristics of the urban landscape.The study introduces the minimum resistance model and identifies the issues in the current construction related to structural and block configuration.Moreover,it proposes control strategies to address these issues.The findings of this research can serve as a foundation for future urban planning and construction efforts.更多还原