Solutions for 4D cadastre – with a case study on utility networks

The increasing complexity and flexibility of modern land use requires that cadastres need to manage information on the third and temporal (fourth) dimension. This article considers the registration of legal space of utility networks in cadastre in this 3D + time (=4D) context. A requirement analysis in three countries that have methods to register utility networks complying with their legal, organizational and technical structure (Turkey, the Netherlands and Queensland, Australia) is the basis for three alternatives for 4D cadastre to register utility networks. The three alternatives are analysed with respect to legal, organizational and technical cadastral requirements. This article presents a case study and a prototype from the Netherlands. In this country by law utilities are considered to be real estate objects with obligatory registration of ownership and geometry. This study shows that the 3D space and separate temporal attributes approach (state-based model) is a very promising solution to maintain temporal changes of utility networks and that this approach is to be preferred above the current practice, where the 3D and temporal aspects are not considered when registering a network.     

基于GIS技术的青海湖流域综合整治类型区划分及整治方向

根据青海湖流域自然环境和生态系统特征,以2009年青海湖流域植被分布图为底图,结合DEM高程数据、青海湖流域草场类型图以及青海湖流域行政区划图,综合考虑青海湖流域海拔、植被分布以及社会经济等因素,采用ArcGIS软件对青海湖流域进行3级划分,在分区的基础上提出各类型区生态与环境治理的基本思路与方向,提出各类型区综合治理土地沙漠化、湿地萎缩和草地退化等生态与环境问题的途径与对策。     

基于空侧货物运输系统的中国民用机场可达性评价

基于机场连接的航线网络,把某机场到其他机场的年可用货运吨位加权之和作为测度指标,分析2001~2013年间中国民用机场空侧货运可达性在时间和空间上的变化。研究结果表明：机场空侧货运可达性逐年提高,机场间可达性绝对差异变大,相对差异减小;北京、上海、广州和深圳机场的空侧货运可达性排名稳居前四;机场空侧货运可达性从大到小按指数规律迅速下降;华北区机场空侧可达性最高,新疆区机场可达性最低,东西部机场可达性差距缩小;七大区域机场可达性总体呈上升趋势,但上升幅度各异。     

跨区域湖泊管理权分割及其对管理行为的影响——以太湖为例

以太湖例，运用参与式评估方法和问卷调查获得资料，对跨区域湖泊管理权分割问题进行了探讨，分析了太湖管理权在不同行政区域之间以及部门之间的配置情况。在此基础上，就湖泊管理权分割对涉湖泊管理组织（包括地方政府和各级管理部门）管理行为的影响进行了分析，结果表明：湖泊管理权的分割导致不同行政区域间、部门之间管理行为不协调，这些不协调的管理行为制约了跨区域湖泊管理目标的实现。最后，结合研究结论，提出了完善管理政策建议，即建立综合管理体制和创新湖泊管理机制等措施。     

浅谈监理咨询公司开展建筑工程项目管理业务的模式及优缺点

随着建筑投资主体多元化格局的逐步形成,再加之项目规模日趋庞大和管理过程日益复杂化,业主希望寻求直接代理人以实现业主方的全过程建筑项目咨询管理.因此,新型的项目咨询管理公司就成为市场需求的必然产物.根据目前行业内企业的业务特点,建设监理咨询公司最有条件向建筑工程项目管理企业"变身".     

基于WebGIS的县市级海洋管理信息网的构建

充分利用网络资源,实现县市级海洋管理部门“电子政务”工程,进一步提高海洋渔政部门处理事务效率,加强政府部门与公众的交流和沟通,改善部门管理内外部环境,是“政府工程”的最终目标,其中间过程是构建县市级海洋管理信息网.以MapXtreme为基础平台,利用计算机网络技术,提出了基于WebGIS的县市级海洋管理信息网的构建方案和实现方法.     

Pastoralism within the cadastral system: Seasonal interactions and access agreements between pastoralists and non-pastoralists in Northern Kenya

The imposition of exclusive statutory real property rights in or near pastoralists’ areas and their migration corridors permanently excludes and extinguishes pastoralist rights to mobility and access to required resources. Seasonal interactions with non-pastoralist land use actors often occur during pastoralist migrations between rangelands and highlands or dry season grazing areas. In an embedded case study in Northern Kenya, in which interviews based on semi-structured questionnaires were held with pastoralists and non-pastoralists, we investigated how non-pastoralist land use actors manage encounters with migrating pastoralists within the context of the Land Administration system. We found that the majority of non-pastoralist land use actors encounter migrating pastoralists during distinct periods. Most never allow herders access to privately owned land. A small proportion allow access and make temporary verbal or written access agreements containing provisions on grazing fees, grazing regulations and rules to protect private property. The majority of non-pastoralists are unwilling to have access arrangements formalized. We argue that land rights adjudication should identify and confer all existing land rights to all users to avoid obstruction or renegotiation for access, and recommend the inclusion of pastoralists’ access rights as real property rights in the Land Administration system.     

虚拟现实系统在柳州市城市规划管理中的应用

随着城市的快速发展,对城市规划建设科学管理的要求越来越高,虚拟现实这一最新的空间技术迅速应用于城市规划建设领域。本文将虚拟现实技术与城市规划管理相结合提出了应用思路和开发经验。     

地质公园发展与管理

地质遗迹是最重要的自然遗产,是追索地球演化历史,了解自然环境现状,预测天人和谐愿景的对象,地质遗产的保护是不可忽视的要务,地质公园建立则是达成这一人类共同责任的最佳选择.随着中国和欧洲地质公园的迅速发展,亚洲各国、澳洲、南美洲也正步入地质公园的快速发展期.推动地质公园建设作为全球人类与自然协调发展,和谐共存的重要方式之一,已成为人们广泛接受的共认.