Information from River-Corridor Surveys

A river-corridor survey (RCS), routinely undertaken on behalf of the National Rivers Authority (NRA), provides a consistent national approach to gathering and recording environmental information on 500-m stretches of river corridor. The development of RCS is reviewed and the methodology which is currently applied within the NRA is described. A research programme, sponsored by the NRA, to develop scientifically-valid methods for extracting quantitative information from RCS maps is outlined. The methodology allows for spatial distortions and operator variance in mapping the 500-m stretches. It is based on an abundance scale and therefore provides data which can be quantitatively combined and analysed (a) to highlight different properties of the river corridor and (b) to summarize those properties over different corridor lengths. The results of an example application of these methods of information extraction to a 14.5-km length of river corridor are presented.     

当前招标信息发布存在的问题及对策

招标信息在招投标活动中发挥着重要作用。发布媒介不规范的问题在招标信息发布中十分突出,从部委颁布的规章,结合实际情况,提出了针对性的解决办法。     

基于“3S”的历史文化资源普查与利用——以南京市为例

以"3S"等科学技术为先导,以数据库为平台,南京市构建了以"前期技术研究数字化、普查过程实施数字化、普查资源集成数字化、普查资源评价数字化、普查成果应用数字化"为核心的全过程的历史文化资源普查和利用数字方法体系,建立了覆盖全南京的历史文化资源"一张图"。实践证明,全过程的历史文化资源普查和利用数字技术是科学、先进、可行的,能够大大提高南京市历史文化资源普查的工作效率和工作质量。     

地理信息系统的现状和发展趋势

地理信息系统,英文简称为"GIS",它是一种计算机系统,具有对地球空间数据进行输入、存储、检索运算、分析、建模、显示、输出的功能;作为一门新型边缘学科,它集空间科学、测绘遥感学、现代地理学、信息科学、计算机科学、环境科学和管理科学为一体。     

对当前城建档案信息化建设的思考

理性地对当前城建档案信息化建设进行思考,分析当前城建档案信息化建设现状及产生原因,认真做好城建档案信息化建设的重点工作,整合资源优化服务,加快数字化建设是城建档案信息建设的必由之路。     

Methods Employed by Geographers in Regional Surveys

To each man, his own city; and for each city, a differing threat of demise. The most serious of these threats is the most subtle one: the prospect that in salvaging our own interests we abandon the common life and the ennobling search for the common good.     

The Use of Audit Surveys in River Maintenance

The use of river corridor surveys (RCS) prior to major river maintenance works is now widely accepted within the water industry as a means of integrating the requirements for nature conservation with river-management practices. This paper outlines the audit procedures introduced by the National Rivers Authority (NRA), Wessex Region.
The introduction of follow-up or audit surveys in 1988 allowed an assessment of the effectiveness of RCS in protecting and enhancing habitats. The method and results of the audit are discussed, confirming the usefulness of audit in ensuring success in the most cost-effective manner. The audit also identified training needs and failures in implementing enhancement recommendations. Audit has led to a more consistent standard of environmentally-sensitive maintenance work. A revised method for audit surveys is detailed.     

Characteristic Features of Geologic-Engineering Surveys for Arterial Pipelines

It is demonstrated that mechanical characteristics of soils can be adopted from familiar tables of Construction Rule and Regulation 2.02.01-83* as a function of their physical indicators determined for specimens and monoliths sampled along the route without detriment to the quality of design work and the reliability of the oil pipelines on the whole during subsequent service.__________Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 3, pp. 18–20, May–June, 2005.     

我国城市规划管理信息系统的现状及发展趋势

我国的科技发展迅速,城市发展也在不断进步,尤其是城市规划管理信息系统（UPMIS）。近几年,人们不断深入研究此系统,发现UPMIS 仍然存在很多的不足之处。我们应该根据这些不足之处,一一对其进行完善。