甘肃渭河流域土地利用及覆被变化 对径流的影响研究

利用遥感图像、1980年和2000年Landsat TM影像数据,用分类统计方法、分段比重百分比指标法分析渭河流域土地利用及覆被变化空间分布和转移情况。以清源河小流域为研究实例,用分类水文模型对其进行了模拟。结果表明,黄土高原土地利用及覆被变化对流域年径流有显著影响,即: 对径流的影响表现为季节性特征明显;对暴雨形成的洪水过程有延时效应。     

5G-V2X辅助下基于站点区域类型的城市充电站规划方法

5G技术发展使用户能够通过车联网和V2X（vehicle to everything）技术快速获取周围物理环境的信息。车辆、电网运营商等也能根据路网信息进行更好的资源分配与调度,从而促进现代化智慧交通、智慧城市等发展战略的实现。考虑到现代化城市不同区域承担着不同功能,在车辆停靠、电网容量、土地约束、成本价格等方面具有不同特征,为优化充电站部署,建立了V2X辅助下城市区域特征差异充电站模型。考虑实际情况,引入M/M/S/K排队模型和用户充电决策模型对用户行为进行刻画。进一步建立优化模型,在用地面积、电网容量以及服务需求的约束下,通过充电站点选择和充电桩部署,最大化运营商收益。为求解该问题,设计了一种基于站点容量和用户充电行为的充电站网络规划方法,首先求解给定站点的最优充电桩部署数目,然后对候选站点进行筛选聚合实现充电站网络优化。仿真验证了所提优化方法的有效性,所提充电站网络优化方法能够有效提高站点内充电桩利用率,减少运营商建设成本,提升运营商整体盈利。     

Evaluation of Land-Use Efficiency Based on Regional Scale——A Case Study in Zhanjiang, Guangdong Province

Evaluating land use efficiency is critical to the revision of general land use planning. An assessment indicator system for regional land use efficiency was established in this paper from the aspects of society, economy, ecology and environment. The weight of each indicator was defined by an analytical hierarchy process (AHP) and the entropy method (EM). Then, a case study in Zhanjiang was carried out to analyze the regional land use efficiency from 1996 to 2004 and its development by using the method of multifactor composite evaluation and an analytical model of the degree of coordination. The results indicate that land use efficiency with respect to society and the economy improved, whereas the ecological and environmental efficiencies were found to decrease. The degree of coordination in Zhanjiang is still at the status of basic coordination. Finally, measures for enhancing the ecological and environmental establishment are suggested in order to improve the regulations of land use structure and patterns, establish ecological forests for the public good and green corridors and prevent the soil erosion.     

基于模糊神经网络的空间负荷预测小区用地分析

对配电网的空间负荷预测方法进行改进,重点研究小区用地分析的模糊推理模型,把人工神经网络技术与模糊推理系统相结合的方法应用于小区用地分析。该方法采用人工神经网络技术提取模糊规则,形成一类具有学习功能的模糊智能系统,具有自适应能力强、推理效率高及知识表达能力较强等特点。以实例验证了该方法的有效性。     

三峡库区城镇土地利用结构优化探析

三峡库区正处于快速城镇化的关键时期，城镇规模急剧膨胀，城镇建设占用大量土地，土地资源短缺与人们生存需要的矛盾日益突出，这已严重影响到库区城镇的经济、社会、生态环境的可持续发展目标的实现。针对三库区城镇化进程中出现的土地利用问题，提出了优化土地利用结构，走内涵集约型土地利用的途径，以期协调城镇建设与土地资源保护的关系，并进一步分析了优化土地利用结构的动力机制及对策措施。     

二元建设用地管理体制下的城乡空间发展问题——以广州为例

在总结"城区外拓"和"城镇蔓延"的用地发展特征基础上,分析了当前建设用地管制体制的内在矛盾;以广州市为例,指出:二元建设用地管理体制下的土地利用管制已经对大城市的空间增长形成了越来越多的约束,集中表现为相关主体对集体土地建设权的争夺;这不仅增加了城市规划编制和用地管理的成本,而且将进一步扭曲大城市的城乡空间发展;在制度检讨的基础上,提出了相关政策建议。     

The flora of selected urban land-use types in Berlin and Potsdam with regard to nature conservation in cities

Part of this investigation is the flora of three different urban land-use types which represent typical biotope characteristics of Berlin and Potsdam. The majority of these urban land-use types is located in the former GDR territory of East Berlin and Potsdam, which were almost unexplored and are therefore of special botanic interest. The focus lies on the inventory of wild-growing vascular plants, their diversity, richness, and value for nature conservation.The first investigated land-use type are the landscape parks of Potsdam with their plant communities of meadows and lawns which differ from many other grasslands of today in having unique plant species due to their historic garden design and the continuous way of extensive garden management. Second, the residential areas of the 20/30s in Berlin and their diversity of wild-growing vascular plants and planted trees which reflect the original garden management and the gardening traditions of this decade are presented. The third urban land-use type is the area of the Berlin wall with urban wasteland communities. It will be shown that also in the inner city with a high population density a special variety of species makes urban wastelands worthy for nature conservation.     

The future of domestic water law: trends and developments revisited,and where reform is headed

ABSTRACT

A re-visitation of trends and developments in water legislation in the light of experience and new legislation from selected countries confirms the findings of prior stocktaking, while bearing out advances in many areas: achieving adaptability of regulatory water-allocation mechanisms; blending efficiency and equity of allocation; ‘greening’ of water laws; bridging the land–water divide; and giving customary and de minimis water rights their due. The human right to water, and access to justice, are emerging new trends. These, and the advances listed earlier, show the likely direction of future water law reform.     

土地使用权作为出资成立项目公司分析及操作建议

对以土地使用权作为出资成立项目公司的相关法规进行分析,结合具体案例对以土地使用权作为出资成立项目公司的利弊进行综合分析,重点分析比较以土地使用权作为出资成立项目公司后转让土地使用权的利弊,最后根据以上分析对以土地使用权作为出资成立项目公司在实际工作中的具体应用提出操作建议。     

Effect of Floods on Village Spatial Structure and Hierarchy – Hahoe Village,Korea

The development of the spatial structure of a traditional Korean village and its social hierarchy is analysed using a river engineering approach to determine the relevance of river flooding and examine how floods have transformed the landscape around the village. The subject focuses on the village of Hahoe, which was registered as a World Heritage Site in August 2010 for its well-preserved traditional architecture and beautiful natural landscape. The village is located on a small plain surrounded by mountains and within a loop of the serpentine Nakdong River. As a riverside village surrounded by water on three sides, its development is assumed to have been influenced by flooding, but no study has previously investigated the correlation between village development and inundations.