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排序方式: 共有185条查询结果,搜索用时 578 毫秒
41.
刘京臣 《重庆师范大学学报(哲学社会科学版)》2015,(6):21-26
作为新兴学科的文学地理学,在学科归属、理论建设、研究方法等领域取得一系列重要成果,但在依托信息技术进行实证研究等方面,尚有开拓空间.通过自动标注、提取与分析《万里荷戈集》中的相关信息,依托GIS,在数字地图中进行标注,可用技术手段还原部分历史场景. 相似文献
42.
无序扩张和环境质量恶化是城市发展所面临的重要挑战,研究城市绿地系统规划有助于提高城市生活品质,维持城市生态系统的稳定、健康发展。利用城市化水平较高的杭州湾滨海城市慈溪市为研究对象,并运用绿色基础设施理论及GIS技术,分析了城市绿地现状及其空间分布所存在的问题。提出优先保护城市生态的目标,规划了城市绿地连接通道,整合非线性绿地网络中心,全面提升了城市保障与生态环境维护的系统功能。 相似文献
43.
基于地理信息系统GIS技术构建数字高程模型,采用平面模拟方法参照120.89 m水位对哈尔滨市淹没风险预测,运用地理信息系统GIS与遥感RS技术相结合的方法获取了哈尔滨市区土地利用现状空间分布信息,并用其将社会经济信息进行空间展布,对淹没区产业类型分布图和淹没深度进行矢量叠加分析,并依据经济信息进行淹没经济损失风险评估。评估结果显示,淹没经济风险最高的区域主要分布在道里区和道外区,其次为松北区、呼兰区和香坊区。 相似文献
44.
以中国期刊全文数据库、中国优秀硕士学位论文全文数据库和中国博士学位论文全文数据库为文献检索来源,以生态脆弱性和GIS为检索词,对1980~2010年的文章进行了检索与分类统计,从数量、区域、内容、方法上对我国生态脆弱性研究进展进行分析。结果表明:期刊总论文259篇,其中核心期刊论文占44%;从1993年开始,相关期刊论文和硕博论文总体上呈逐渐上升趋势;2000年之后,我国生态脆弱性研究成为研究热点;从区域上分析,早期西南石灰岩山地生态脆弱区和华北平原生态脆弱区,北方半干旱-干旱生态脆弱区和西北半干旱生态脆弱区研究较多;后期南方丘陵生态脆弱区研究发展较快;从内容上分析,实证研究多于理论研究;从方法上分析,早期多以县域为数据单元,2000年之后开始出现栅格法地理信息系统技术,2005年起数量逐年增多。目前,从景观的角度探讨生态脆弱性的研究比较少,还没实现脆弱性的三维可视化表达。 相似文献
45.
Nuclear power is widely used throughout the world today. Functioning nuclear power plants produce large quantities of radioactive wastes needing to be transported to safe sites for proper management. With public emphasis on environmental protection and concern for safe transport of nuclear wastes, the problem of selecting an appropriate route for transporting nuclear wastes is a vitally important issue. The aforementioned route selection problem involves conflicting objectives among interested parties; therefore, we develop a multi-objective geographic information system (GIS) with ESRI ArcView GIS 3.x interface to practically support the involved parties for such a multi-objective route selection problem in engineering practices. 相似文献
46.
47.
Helen K. Liu Mei Jen Hung Lik Hang Tse Daniel Saggau 《The Australian journal of social issues》2020,55(2):182-200
It is increasingly common for urban planners and local policymakers to adopt interactive technologies, such as geographical information systems (GISs), to inform their decision making and to enhance performance. This paper aimed to assess the role that interactive technology can play in enhancing urban governance to meet social needs by improving local organisations’ capacities, client access, and service effectiveness and responsiveness, as well as community building. Using the previous research framework on mapping community capacity developed by Brudney et al. (Community Development Journal, 2016, 52, 354) and Çöltekin et al. (Cartography and Geographic Information Science, 2009, 36, 5–17), we examined a simulated online interactive map for service provision in Hong Kong and interviewed around 20 local community organisations and 100 local residents about their user experience, their willingness to support its long-term adoption and their challenges. Our findings reveal that local residents find the interactive map helpful, particularly in improving service access, whereas local organisations are more reluctant to adopt such technology due to high maintenance costs. The implications of our study include the need to develop incentives to encourage technology adoption, to improve the capacity of local organisations and to establish better links between community organisations and local residents to identify sustainable financing (through crowdsourcing) for GIS applications to improve urban community governance. 相似文献
48.
This article describes a GIS prototype designed to assist with the identification and evaluation of housing that is affordable, safe, and effective in supporting the educational goals and parental status of youth transitioning from foster care following emancipation. Spatial analysis was used to identify rental properties based on three inclusion criteria (affordability, proximity to public transportation, and proximity to grocery stores), three exclusion criteria (areas of high crime, prostitution, and sexual predator residence), and three suitability criteria (proximity to health care, mental health care, and youth serving organizations). The results were applied to four different scenarios to test the utility of the model. Of the 145 affordable rental properties, 27 met the criteria for safe and effective housing. Of these, 19 were located near bus routes with direct service to post-secondary education or vocational training programs. Only 6 were considered appropriate to meet the needs of youth who had children of their own. These outcomes highlight the complexities faced by youth when they attempt to find affordable and suitable housing following emancipation. The LEASE prototype demonstrates that spatial analysis can be a useful tool to assist with planning services for youth making the transition to independent living. 相似文献
49.
We estimated spatially lagged regression and spatial regime models to determine if the variation in total, on-premise, and off-premise alcohol outlet1 density is related to robbery density, while controlling for direct and moderating effects of social disorganization.2 Results suggest that the relationship between alcohol outlet density and robbery density is sensitive to the measurement of social disorganization levels. Total alcohol outlet density and off-premise alcohol outlet density were significantly associated with robbery density when social disorganization variables were included separately in the models. However, when social disorganization levels were captured as a four item index, only the association between off-premise alcohol outlets and robbery density remained significant. More work is warranted in identifying the role of off-premise alcohol outlets and their characteristics in robbery incidents. 相似文献
50.