Sinkhole distribution in a rapidly developing urban environment: Hillsborough County, Tampa Bay area, Florida   总被引：4，自引：1，他引：3  

R. Brinkmann  M. Parise  D. Dye 《Engineering Geology》2008,99(3-4):169

Sinkhole formation in Florida is a common event. The Florida karst plain is significantly altered by human development and sinkholes cause considerable property damage throughout much of the state. We present in this paper a morphometric analysis of karst depressions in the Tampa Bay area, and the relation with the known distribution of sinkholes. We selected the Tampa Bay area because it is particularly susceptible to the evolution of karst depressions in relation with development of the built-up environment. Karst depressions were mapped from the 1:24,000 USGS topographic maps and a morphometric analysis was performed by using parameters such as shape, circularity index, perimeter, area, length, width, and orientation. Maps showing the distribution of depression density, and the sectors with greatest areas of karst depression were produced using a GIS. These results were compared with data compiled from the database of sinkhole occurrences in Florida maintained by the Florida Geological Survey. Our analysis demonstrates that the distribution of new sinkhole occurrences differs from the distribution of existing sinkholes, indicating that there are processes acting today that are influencing karst landscape formation that are different from those acting in the past.  相似文献   

面向服务的信息化测绘关键问题探讨   总被引：1，自引：1，他引：0  

冯学兵  顾学明  范文革 《北京测绘》2008,(3):1-4

首先对信息化测绘的内涵进行了分析,提出了信息化测绘的服务本质,加强地理信息资源建设的关键任务,提出以数据库作为地理信息载体的观点;提出了信息化测绘建设的技术思路,总结了地理数据库的逻辑结构;对信息化测绘的组织运行方式提出了建议.  相似文献   

虚拟现实技术在城市规划方面的应用研究   总被引：1，自引：0，他引：1  

刘增良  张保钢 《北京测绘》2008,(4)

介绍了计算机虚拟现实技术概念,探讨了虚拟现实技术应用于城市规划的优势和特点,给出了虚拟现实技术在城市规划设计和规划审批辅助决策中的两个应用研究实例。  相似文献   

Exploring marine spatial planning education: Challenges in structuring transdisciplinarity     

《Marine Policy》2016

Marine Spatial Planning (MSP) has experienced vigorous growth on the international scale in recent years, and several practices has emerged from different countries. The demand for specific training in the preparation and implementation of marine planning has therefore already shown itself to be quite relevant on a global scale. Educational initiatives related to MSP have to respond to the increased complexity of MSP, which integrates environmental and economic perspectives on marine resources and maritime sectors, considering governance framework as well as maritime affairs and legislation.This paper aims at addressing the educational and training needs for the development of both academic education and professional training in MSP. Learning skills, contents and methods of an ‘ideal’ MSP course are depicted from widely accepted operative guides on MSP and from the EU Framework Directive on MSP (2014/89/EU). They are considered for the analysis of the current educational offer around MSP, performed in a sample of countries that have already undergone a process of implementation of MSP by Law. As result, beside the great variety of courses, it emerges that MSP education seems to be often regarded from an environmental perspective – in continuity with Integrated Coastal Management education – while planning theory and experiences in MSP are the least represented contents. Results are discussed in relation to three major challenges: i) how educational offer reflects on transdisciplinarity, ii) the role of theory in MSP courses, and iii) the enforceability of Plans as major concern in MSP.  相似文献   

丹霞地貌度假区景观保护利用规划——以江西叫岩度假区为例     

陈存友  胡希军  洪文艺  刘玉桥 《热带地理》2009,29(6)

度假区共有旅游资源8个主类,共118处资源单体,其中优良级单体18处,资源品位适中。在47个空气负离子含量测点中,浓度在700个/cm~3以上的占51.1%;空气细菌平均数仅为县城的6.2%,显示了度假区环境的优越。在评价测定的基础上,提出了景观保护利用规划的三大原则:生态化、自然化和乡土化原则;确定了四种利用方式:作为观景对象、文化熏陶、活动平台、休憩场所加以利用;阐述了综合评价的四大内容:风景质量、阀值、敏感度以及特殊价值评价;进行了三级分区保护:重点保护区、景观恢复区和适度发展区。  相似文献   

西南岩溶区岩溶水有效开发利用规划分区   总被引：8，自引：3，他引：5  

张卫  覃小群  易连兴  凌泽民 《中国岩溶》2001,20(1):27-34

我国西南岩溶地区由于自然地理、地质构造背景特征,造成了岩溶水补给、径流、排泄及动态的差异,以及在开发利用岩溶水资源的方式和途径上的不同。本文以岩溶水赋存条件及其地质环境条件为基础,依据岩溶水的富水性、开发意义、开发的紧迫性以及开发方式和社会效益,进行岩溶水有效开发利用规划分区,为该地区的岩溶水有效开发提供参考。   相似文献   

林带冬季相立木疏透度及其设计方法的研究   总被引：13，自引：2，他引：11  

王志刚  杨东慧 《中国沙漠》1998,18(1):87-90

研究林带冬季相结构设计方法是针对我国北方干旱沙区气候和风沙活动特点,为沙区新垦绿洲防护林体系建设服务的。用随机概率法推导曹新孙立木疏透度与疏透度之间的近似数值关系,得知立木疏透度最佳值为3.3;根据生物器官间生长量的相关性提出林带冬季相结构设计方法,测算了新疆杨、沙枣等六个常用防护林树种的设计参数。  相似文献   

柬埔寨海洋空间规划研究与实践          下载免费PDF全文

滕欣  赵奇威  董月娥  张盼盼  胡恒  王双  岳奇  曹东 《海洋技术学报》2019,38(4):108-113

海洋空间规划是协调用海活动和保护生态环境的海洋综合治理机制,也是提升海洋资源可持续利用和发展蓝色经济的有效工具。《柬埔寨海洋空间规划(2018-2023年)》运用实地调查、综合评价、GIS空间数据分析和专家咨询等技术方法,构建了柬埔寨海洋功能区分类体系,划分了9类33个功能区,制定了功能区管理要求、行动计划和用途管控清单,提出了"发展目标+功能分区+用途管控+实施引导+决策系统"的空间规划编制和实施模式。  相似文献   

“It’s a gestalt experience”: Landscape values and development pressure in Hawke’s Bay, New Zealand     

Damian Collins  Robin Kearns 《Geoforum》2010,41(3):435-446

Demand for both primary residences and second homes in high-amenity areas has led to escalating property values and widespread development pressure in coastal New Zealand. We focus on a major development proposal at Ocean Beach, a greenfield coastal site in the Hawke’s Bay region, and seek to explain the opposition it has provoked. In so doing, we address three questions: first, what landscape values are articulated within the planning process; second, what is the anticipated impact of 1000 new dwellings on those values; and third, how does place attachment figure in the ensuing debates. We address these questions though a thematic analysis of data derived from official reports and proposals, planning submissions, and key informant interviews. We find Ocean Beach to be a place that offers a quintessential coastal experience, often linked to youthful memories. Additionally, the site is valued for its accessibility and wilderness qualities - perceptions heightened by awareness that areas of undeveloped coastline relatively close to population centres are increasingly scarce. We contend that such sites are doubly valuable: in a formal sense, as natural landscapes whose processes and forms receive regulatory protection; and in an informal sense, as sites that generate human meaning, including emotions such as nostalgia, freedom and belonging.  相似文献   

2010′中国地理信息系统协会金奖工程简介 南京市数字规划信息平台建设     

《测绘软科学研究》2011,9(2):80-82

一、项目概述 “数字规划”是“数字城市”的一个重要组成部分。我国城市规划信息系统从其发展历史及其相应的社会认识水平、行业应用水平进行划分,已经大致经历了两代产品历程。这两代产品的不断完善和成熟,记录着我国城市规划信息化的探索脚步,印证着规划人对新技术应用的孜孜追求,代表着新技术在规划行业的应用成就,标志着新技术在城市规划应用中的美好前景。  相似文献