长沙市人居环境与经济协调发展的不确定性评价(英文)

The coordinated development of human settlement environment and economy is of vital significance to urban sustainable development and urban ecosystem health. Urban human settlement and economic systems exist in urban ecosystems, which are a structural complexity. Therefore the research is being challenged by some uncertain factors between human settlements and economic systems. However most of the researches were focused on its determinate objective aspects and qualitative analyses while less concern on the quantitative evaluation of coordinated development of urban human settlement environment and economy, especially little on its uncertain aspect. At present, the urgent task is to study the coordinated development of urban settlement environment and economy in terms of the effect of uncertainty. This study analyzed the uncertain characteristics, which would be confronted at different stages, such as confirming the index categories, their bound values, and their construction rate, etc. According to the actual urban conditions, many construction principles based on uncertainties are put forward and an indicating system for human settlement and economic evaluation is established. Moreover, the application of fuzzy mathematics presents a new method and a calculation model for the comprehensive assessment of the coordinated development of urban human settlement environment and economy. The application of the method and model in Changsha city of China showed that the assessment results can reflect not only the overall coordination degree of the city, but also the mode of interactive mechanism between urban economic system and human settlement environment.     

城市规划CA模型及其应用

基于CA模型,从城市规划角度,通过引入控制性详细规划层,将整个城市空间划分为不同组团片区,构建了自下而上和自上而下相结合的城市规划CA模型(UPCA),并以长沙市为例进行实证研究。结果表明:该模型简化了传统CA城市模拟模型的数据量,提高了模型的模拟精度,并增强了模型的规划决策功能,使模型具备一定的社会经济分析能力。     

长沙市区地价的空间分布特征及其影响因素

利用长沙市2003～2009年上半年的土地交易资料,采用GIS空间分析和计量经济学相结合的方法,得出长沙市区商业、住宅和工业出让地价分布的空间结构图,分析三类用地地价的空间分布特征及其影响因素。结果表明：（1）土地用途不同,其地价的空间分布也不同,商业地价对商服繁华度要求较高,高值区集聚在市中心（以五一广场为中心）;住...     

基于动力体系的长沙会展旅游发展研究

通过文献回顾和德尔菲法,最终确定了会展旅游动力体系一级指标7个,二级指标25个,并对各动力要素进行了分析,然后运用层次分析法确定了各动力要素指标的权重。在此基础上,通过专家打分计算了长沙会展旅游动力体系各要素现状分值和发展动力值,得出以下结论：（1）长沙区位优势明显;（2）长沙会展旅游业属于潜导型城市;（3）服务质量和经济实力需要加强;（4）动力体系中各要素对会展旅游发展缺一不可。最后试图依据结果探讨有利于长沙会展旅游发展的对策。     

城市化对长沙市两气象站气温记录的影响

为深入认识城市对其附近气象站气温的影响,采用位于长沙市区东部和西部两个气象观测站的2007-2009年的逐日气温、风向和风速资料,结合地表覆盖特征数据,对比分析了两站气象记录差异,并通过改进的城市影响指数模型估算了气温资料中的城市影响偏差。分析显示：（1）2007-2009年东、西气象站逐月平均气温（T_mean）、最高气温（T_max）和最低气温（T_min）差异很大,最大差异分别可达0.90℃、0.83℃和1.34℃;（2）受城市及风向的影响,两气象站的逐月城市影响指数（K）差异较大,东、西站平均K值分别为2.01和1.50,年内同一台站的K值存在季节变化规律;（3）两站逐月△K与△T之间存在极显著正相关关系;（4）东、西两站2007年T_mean中的城市增温最大,分别达0.63℃和0.45℃。城市附近气象站气温记录受城市规模、风向和风速等因素影响明显,在分析长历时气候变化特征和利用站点记录数据进行空间分析时,有必要对气温数据进行订正。     

The influencing factors of urban land expansion in Changsha

This research systematically analyses land-use map of Changsha city in different periods of time. The spatial form and structural evolution was analysed by studying indices such as city land-use structure proportion, expansion intensity, economic flexibility, population flexibility, changing compactness index and so on. The dynamic mechanism of urban land expansion has been discussed by integrating the regional social economy development situation and many aspects such as the physiographical surrounding, population and eco-nomic development, traffic infrastructure, planning and regional development tactic and system innovation. The research indicates that the urban land expansion speed and intensity have steadily increased in Changsha from 1949 to 2004. The expansion form has been from a single external expansion to a combination form of external and internal expansion, from a circular or linear continuous form to a blocky or agglomeration shape. Overall, the urban land expansion of Changsha city is a phasic, diversified and complex process. And no matter what the stage is, it is an organic system containing multiple speed, pattern and shape, which are driven by multiple impetuses. The dominant feature at different stages was highlighted be-cause of the balance and fluctuation between different forces, and the existing urban land border and shape have resulted from the joint efforts of these phasic forces.     

高压摆喷注浆在长沙市堤防建设中的应用

为防止长沙市21.8km重点堤防的管涌、涌漏等隐患，提高堤防的抗洪能力,采用高压摆喷浆施工对其进行了整修、加固。较详细地介绍了设备的选择、孔间距及工艺参数的调整、工序安排和工程质量及检测方法。堤防中摆喷连结心墙的围井检测表明，高喷注浆是处理长沙市防洪堤防第四系松散地基的一项设备简便、噪音小、施工快、成本低、防渗效果好的工艺。     

汉初南越国北界及有关问题

本文讨论了汉初南越国与长沙国的分界，指出该界线位于五岭之南；根据马王堆汉墓出土的古地图和有关历史记载，结合现代地理资料，着重研究了苗渚岭段的边界位置；论述了汉平南越五路大军的路线，以及南越国北界形成的地理与历史背景。     

长沙市城市居民宅基地转入意愿及影响因素

研究宅基地转入方的需求意愿及影响因素可为构建科学合理的宅基地流转制度提供参考。从需求的角度出发,构建城市居民宅基地转入意愿影响因素分析模型,以长沙市为例,运用Logistic回归模型分析了城市居民宅基地转入意愿的影响因素。结果表明:影响城市居民宅基地转入意愿的因素主要有宅基地形状、城市居民年龄、城市居民家庭住房使用年限、宅基地产权、宅基地与中心城区的距离和宅基地基础设施状况。宅基地流转应以城中村和城郊村为试点范围,加快宅基地确权颁证,完善宅基地基础设施。     

制度对城市都市区制造业空间演变的影响——以长沙市为例

改革开放以来,伴随中国制度变革的不断深化,长沙市制造业实现了快速发展,其制造业空间也在转型中得到重构。论文以长沙市都市区为例,基于长沙市工业用地矢量数据,采用空间分析、测度指标评估等研究方法,将制度变迁纳入城市制造业空间动态分析,深入探讨改革开放以来,制度变迁对制造业空间演变的影响作用。基于此,构建了制度体系作用下的制造业空间演变解析框架。研究发现,长沙都市区制造业空间郊区化迁移明显,并在开发区内形成集聚,整体呈现出“大分散、小集聚”的空间格局特征;长沙制造业空间演变很大程度上受到土地制度、开发区制度、环境保护制度和产业制度等的综合影响。其中,土地制度加速了制造业空间郊区化;开发区制度吸引了制造业园区集聚;环境保护制度约束了制造业发展规模;产业制度影响了制造业产业组织结构。