GIS与地理教学课件的整合

GIS作为一个功能强大的工具,将其作为一种教学手段应用到地理教学,将会收到理想的教学效果.将GIS嵌入到PowerPoint课件,通过VBA开发方式,在PowerPoint中与MapObjects进行整合,实现GIS的基本功能,并对GIS功能进行扩展.     

GIS支持下的旅游线路分析——以河南省为例

以GIS为辅助手段,对河南省的旅游景点间路径进行分析,通过建立网络拓扑关系以及各路线长度权值的赋予,进行空间分析得到最佳路径,使游客走最少的路看最多的景点。     

Study on RS- and GIS-based ecological capital assessment in arid areas

Ecological capital assessment is currently one of the important research contents in the interdisciplinary field of ecology, resources economics, environmental economics and ecological economics. To scientifically assess ecological capital redounds to decision-makers to consider the ecological cost in economic development, and is also necessary for sustainable economic development in arid areas. Based on the theory of landscape ecology in this paper the per unit area ecological capital values in arid areas are researched by using the Landsat TM data, CBERS satellite data, meteorological data, MODIS satellite data and other ecological data, and the RS- and GIS-based models of assessing ecological capital values in arid areas are developed. Moreover, based on the field-measured data, a case study on ecological capital assessment in the Manas River basin, Xinjiang in 2003 is carried out. The basin is divided into 4 ecological capital areas so as to quantitatively calculate the ecological capital values of the ecosystems, analyze the spatial distribution of ecological capital, and chart the maps of spatial distribution of ecological capital. The results show that the total ecological capital value of the ecosystems in the Manas River basin in 2003 was 1.49454×10^11 yuan RMB. In spatial distribution, the ecological capital decreases from the alpine zones to the plains and from the oases to the deserts, which accords with the distribution of vegetation zonality in this arid area. The assessed results can objectively reflect the ecological capital and its spatial distribution in the aridbasin, and can also provide reference for roundly carrying out the assessment of ecological capital in arid areas.     

基于GIS的龙海市海域使用现状分析

在地理信息系统技术支持下,分析了龙海市资源海域使用的类型、面积、空间分布及其结构现状。结果表明,该区域海域使用现状基本符合海洋功能区划要求,并且与经济和资源条件匹配度高,但是用海过于集中近岸海域,类型较少,尤其是新兴海洋经济产业比重偏小,开发潜力大。     

基于GIS的土地适宜性评价方法研究——以重庆市城口县为例

为了进行土地适宜性评价,首先利用MAPGIS和ARCVIEW进行图层信息采集(数字化),建立区域图形库的同时,建立土地适宜性评价指标体系,采用特尔菲法确定因素权重,并建立GIS系统管理下的各图层(评价因素)空间属性信息数据库,接着利用GIS叠加分析功能,确定土地适宜性评价的最小评价单元,最后利用累加求和模型计算评价单元的分值并划分适宜等级。对城口县土地适宜性评价结果表明,利用GIS对土地适宜性进行评价,其方法切实可行,具有传统的评价不可比拟的优越性。     

A comparison on urbanization of two mega polises in western China in recent 20 yearsversity,

Based on a comparison of the spatial extension modulus and speed of the two megapolis cities in western China, Chongqing and Chengdu, the differences of urbanization characteristics of the two cities were analyzed. The results show that the two cities have different spatial extension modulus and extension speed. The extension speed of Chongqing, the largest mountainous city of China, was slow and its extension direction was along the Yangtze River valley and the Jialing River valley. Chengdu, the largest plain city of western China, had a faster extension speed than Chongqing and a concentric circles extent modulus. The spatial extent modulus and speed were controlled by the natural condition, especially the topography, the policies, the economic development level and the investment of the state central government.     

基于RS与GIS的密云县集水区土壤侵蚀风险评价

采用水利部2008年一月颁布水利行业标准《土壤侵蚀分类分级标准》(SL190-2007)中的面蚀(片蚀)分级指标,同时结合密云县地理概况,通过对数字高程模型和遥感影像两个数据源对土壤侵蚀分布与强度的动态变化进行快速监测,进一步分析得出坡度,植被覆盖度和土地利用分类三个因子,建立土壤侵蚀交叉表,运用GIS栅格模块的空间分析功能对土壤侵蚀风险进行评价.分析了该区土壤侵蚀现状,明确了土壤侵蚀的强度和空间分布规律,为水土保持决策提供了依据,并提出了相关对策,具有重要的理论意义和实践意义.     

GIS变电站安装时应注意的问题

进入21世纪,随着人类对环境可持续发展和电力系统可靠性的要求,GIS电气设备不断普及。但是,由于GIS设备的特殊性,在GIS变电站的安装过程中,应该注意清洁度、密封性、含水量等问题,只有严格注意这些问题,才能保证GIS变电站的安全稳定运行。     

土地利用规划综合业务信息一体化关键技术与应用

从土地利用规划业务的内容和特点分析出发,探讨了土地利用规划业务涉及的多源
数据管理、动态流程定制、空间历史回溯、规划预警、统计分析等关键技术,提出了基于工作
流、MIS 和GIS 有机集成的一体化解决方案,设计和实现了规划数据动态更新和业务信息一
体化的平台,并应用于天津市土地规划实施工作. 实践表明该方案有效,设计的平台功能完备
且性能较强,对促进土地规划业务的自动化、规范化以及提高工作效率有明显的作用.     

特高压GIS设备的VFTO测量

操作过电压（VFTO）的研究是随着特高压的发展才进行深入研究的,由于国内没有测量的设备,一直只是在理论方面进行研究。国家电网公司要求在首条特高压示范线路上装设带有VFTO测量探头的盆式绝缘子,在条件许可的时候进行VFTO的测量,为开关的带电操作提供依据。