首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 812 毫秒
1.
RELATIVESEALEVELRISEANDITSEFFECTSONENVIRONMENTANDRESOURCESINCHINASCOASTALAREAS¥YangGuishan(杨桂山)(NanjingInstituteofGeographyan...  相似文献   

2.
ASSESSMENTOFECONOMICDEVELOPMENTFORTHREEGORGESRESERVIORAREA①ChenGuojie(陈国阶)ChengduInstituteofMountainHazards&Environment,theCh...  相似文献   

3.
ENVIRONMENTGEOLOGICISSUESANDSTUDYCOUNTERMEASURESABOUTCITYCONSTRUCTIONOFCHINAWuHeng(GuangxiuniversityNanning)〔Abstract〕Thestud...  相似文献   

4.
EMISSIVENESSANDDESTINATIONCHOICEBEHAVIOROFSHANGHAINESEINTHEIRWEEKENDRECREATION¥WuBihu;FangFang;YinWendi(DepartmentofTourismSt...  相似文献   

5.
ECOLOGIC ENVIRONMENT OF TARIM RIVER AND ITS PROTECTIVE PROGRAMME ChengQichou(程其畴)XinjiangInstituteofGeography,theChineseAcade...  相似文献   

6.
(刘希林)DIFASTERSANDREGIONALRISKSOFDEBRISFLOWINZHAOTONGPREFECTURE,YUNNANPROVINCE,CHINA¥LiuXilin(InstituteofMountainDisasterandEn...  相似文献   

7.
GLACIER MELTWATER RUNOFF IN CHINA AND ITS NOURISHMENT TO RIVER   总被引:3,自引:0,他引:3  
GLACIERMELTWATERRUNOFFINCHINAANDITSNOURISHMENTTORIVER¥YangZhenniang(杨针娘)(LanzhouInstituteofGlaciologyandGeocryology,theChines...  相似文献   

8.
REGIONAL DIFFERENCES OF ECONOMIC DEVELOPMENT OF THE CHANGJIANG RIVER VALLEY ChenGuoJie(陈国阶)(ChengduInstituteofMountainDisaste...  相似文献   

9.
郭荣星THEECONOMICIMPACTOFSPATIALORGANZATIONALSTRUCTURESONTHEPROVINCIALBORDER-REGIONSOFCHINA¥GuoRongxing(SchoolofEconomicsandTrad...  相似文献   

10.
ON DEVELOPING ENVIRONMENT AND RESOURCE DEVELOPMENT OF PANZHIHUA HuangJing(黄静)(RegionalEconomicInstitute,People’sUniversityofC...  相似文献   

11.
The paper mainly applies multi-disciplinary theories, methods and geographic information system (GIS) technology to study the investment environment for coastal port cities. The methods of studying urban investment environment using GIS prompted. In this paper, it is mentioned that the study of investment environment with GIS can be divided into 3 layers of macro scope, medium scope and micro scope in the paper. A powerful user-friendly UIEIS (Urban Investment Environment Information System) has been designed to study the urban investment environment. A series of application analysis models (including investment environment assessment models, investment site selection models, documental data management models, statistical data graph display model, economic analysis and prediction models, network analysis models) are developed for investment environment studies in coastal port cities. Ningbo, a very important coastal port city, is chosen as a pilot study city.  相似文献   

12.
南海港口城市研究是南海资源环境监测的重要内容,目前对于南海港口城市空间结构特别是港口在城市空间结构中的地位缺乏研究。夜光遥感数据和POI数据均为城市空间结构研究的重要数据源,但对于2种数据的空间耦合关系与集成应用研究存在不足。针对上述问题,本文选取南海港口城市典型代表的三亚市为研究区,以研究区2016年NPP-VIIRS夜光遥感数据和POI数据为数据源,利用叠加分析将夜光遥感数据和POI核密度分析结果数据分别网格化。然后,利用双因素组合制图法对两种数据的空间耦合关系进行可视化,分析空间耦合关系相异区域和城市空间结构的关系,并在此基础上探讨港口在三亚城市结构中的地位。研究表明,三亚市夜光遥感和POI数据的空间分布总体趋势相一致,空间耦合关系相近的区域占比达85.6%;夜光遥感和POI数据空间耦合关系在三亚市内存在一定量的相异区域,如新城区、经济开发区、城市边缘区和乡镇中心等,结合2种数据的特点可以更显著地表征这些区域的城市空间结构特征;三亚市作为重要的南海港口城市,其城市的中心区域与港口密切关联。本研究为港口城市空间结构研究提供了新视角。  相似文献   

13.
重庆城市基础地理信息系统建设及应用   总被引:9,自引:0,他引:9  
重庆城市基础地理信息系统建设的内容主要包括:数据体系、运行平台、服务体系、安全体系和标准体系。基础地理信息系统的应用可以概括为3个层面,即政府、企业和社会化应用,主要表现在城市规划管理、救灾应急指挥、生态与环保、城市资源管理以及国民经济空间辅助决策支持等方面,指出了重庆城市基础地理信息系统的建设和应用发展方向—建设重庆市空间信息共享平台的初步构想。  相似文献   

14.
海岸带湿地研究中GIS应用的若干问题思考   总被引:3,自引:1,他引:2  
建立海岸带湿地资源与环境信息系统,是对海岸带湿地实施科学管理、确保可持续发展的有效方法。本文讨论它的构建体系及基本思路;并提出在数据获取上借助RS及GPS技术,在数据建库技术上融入面向对象的数据结构组织模式,在传统的GIS分析手段上扩展空间分析的方法等设想,以利于维持系统的稳定和功能的发挥,为今后海岸带湿地的开发利用提供决策参考.  相似文献   

15.
城市三维地质数据管理与服务系统框架研究   总被引:1,自引:0,他引:1  
城市地质数据的数字化管理与服务是“数字城市“工程的重要内容,3D GIS将在未来的城市数字化建设中扮演核心角色.介绍了3D GIS的发展现状及应用前景,详细讨论了基于3D GIS构建的城市地质数据管理与服务系统的设计思路和结构功能.三维数据结构的研究是3D GIS的核心问题并成为当前制约3D GIS深入发展与应用的瓶颈,由于缺乏对三维地质数据进行有效管理与可视化表达的三维数据模型,当前GIS的三维地质建模能力与三维空间分析能力都极为薄弱.在分析城市三维地质数据多种建模方法的基础上,采用一种基于TIN和TEN的混合数据结构来构建城市地质数据建模系统.针对城市三维地质数据的特点,探讨了城市三维地质海量数据的采集与管理、城市三维地质数据信息的Web发布等重要问题,力求为系统功能的最终实现提供完整的解决方案.  相似文献   

16.
古代城市结构复原的GIS分析与应用——以北宋东京城为例   总被引:2,自引:1,他引:1  
空间综合研究方法在社会科学研究中越来越受到重视,GIS正成为一种新的历史学研究工具。本文以北宋东京为例,讨论了运用GIS进行古代城市结构复原可行性。基于开封市考古发现和历史文献研究成果,运用地图学方法、GPS、GIS技术,探讨了古代城市空间结构复原的基本思路、方法和操作步骤。东京城GIS的初步实现表明:以现有考古发现和文献研究资料为基础,在GIS环境中重现古代城市空间,可以整合历史学研究成果,不仅实现历史研究成果的共享,而且为历史学研究提供一个新方法。  相似文献   

17.
董黎明,李向明,冯长春ASTUDYONREGIONALDIFFERENCEOFCHINA'SPAIDURBANLANDUSESYSTEMANDGRADING¥DongLiming;LiXiangming;FengChangchun(PekingUni...  相似文献   

18.
At present, paid urban landuse system is one of the most important economic reform in China. In the other words, landuse right can be transferred and land users must pay the rent to the state according to the quality of land. It is necessary to apply the theory of rent and location to the economic approaisal of urban land. China is vast in territory. Is’s geographical condition and economic development vary from place to place, so does the urban land value. In order to reveal the difference of land value between different cities, the following method is used. (1) Analysing the factors and elements that affect the quality of urban land. Six factors including 17 elements were selected in this paper: macrolocation of a city, benefit of urban aggregation, infrastructure investment, output value of urban land, potential of urban land, and investment intensity. (2) Deciding the weight andvalue of each factor. (3) Appraising each element separately. (4) Accounting the value of all factors and getting the total appraisal score of each city. (5) Grouping the 430 Chinese cities into sevencategories according to the appraisal values. The result shows that all the cities in the category with the highest land output values are in the coast belt, whereas most cities in the inland and outlying areas are belong to the category with low rank. For example, 87% of the cities in the outlying regions are belong to the lowest rank. Although there are some relationship between the size of cities and urban land rank, generally speaking, the larger the city, the higher the urban land rank. In fact, the locational condition is the most important factor which influences the rank of urban land.  相似文献   

19.
伴随新型城镇化进程的不断推进,城市群已经成为地区社会经济发展的重要核心。大数据时代的到来促使新兴时空大数据在城市/城市群建设与管理中发挥着重要作用,并成为当前学术界的研究热点。大数据挖掘技术与融合分析技术将成为未来研究城市群的重要方法。本研究总结归纳了时空大数据在城市群建设与管理中的应用研究进展,对常见城市群时空大数据类型、获取方法和分析技术进行分类整理,并对基于资源调查和多源时空数据分析的城市/城市群研究进展进行分析,特别是对时空大数据及其技术在城市群建设与管理中的主要研究展开归类分析,认为目前时空大数据在城市群建设与管理应用领域主要涉及5大方向:城市群空间界定与发展监测、交通网络监测、关联性分析与功能布局评价、产业协同分析和环境监测与评估。最后,本文分析了现阶段时空大数据在城市群建设与管理应用中的发展瓶颈,提出了相关对策建议,并对未来研究发展趋势提出了展望。  相似文献   

20.
Evolution and spatial patterns of spheres of urban influence in China   总被引:2,自引:1,他引:1  
This article presents the findings of a study of the spheres of urban influence with regard to all cities in China(not including Hong Kong,Macau and Taiwan Province of China)in the years 1990,2000 and 2009.An optimized gravity model with comprehensive time distance was used to carry out a detailed analysis of the spatial patterns of Chinese spheres of urban influence and the spatial characteristics of urban agglomerations.Such urban agglomerations are characterized by high density population and a developed economy,which are also considered as the national competition unit.This paper initially identifies four spatial patterns of urban agglomerations based on the spatial layout of city groups during their evolution.Some basic characteristics of urban agglomerations are outlined,including the number of cities,the size of cities and the functions of urban centers.These characteristics are examined by using statistical methods and Geographic Information System(GIS).The main findings from this research are that the development stages and structures of urban agglomerations in China vary significantly.It is also clear that the stages and evolution of spatial patterns are strongly affected and dominated by both policy and location factors.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号