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正近日,国务院印发了《关于加强城市地下管线建设管理的指导意见》(以下简称《指导意见》),明确了今后一段时间我国城市地下管线建设管理的指导思想、基本原则、重点任务等。对此,国务院有关部门司局负责人及专家就相关问题进行了解答。问:为什么要制定出台《指导意见》?答:城市地下管线是指城市范围内供水、排水、燃气、热力、电力、通信、广播电视、工业等管线及其附属设施,是保障城市运行的重要基础设施和"生命线"。近年来,随着城市的快速发展,地下管线建设规模不足、 相似文献
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城市地下管线探测分析 总被引：1，自引：0，他引：1
本文阐述了地下管线探测对城市建设、规划管理和国民经济发展的重要性;分析了我国目前管线探测现状和方法;讨论了今后管线探测的新技术应用和发展方向。 相似文献
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基于Foxpro和AutoCAD环境的城市地下管线成图系统 总被引：2，自引：1，他引：1
依据现行《城市测量规范》和建设部《城市地下管线探测技术规程》中的有关规定,结合威海市地下管线普查实践,利用Foxpro的数据库管理功能和AutoCAD的图形编辑及二次开发功能,就城市地下管线成图系统开发进行了探讨。 相似文献
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近年来由于我国城市及工业建设的迅速发展,对地下管道、电缆的探测工作,已开始成为城市规划和城市勘查中的一项重要工作。我国城市规划法中有关款项已明确规定了地下管线分布图是城市规划的基本图件之一。工矿企业的改建、地下管线的故障检查和维修,都需要清楚了解地下管线的分布。一些发达国家的地下管线探测工作开展得早,我国起步晚,但近年来有些城市已感到该项工作已迫在眉睫。在城市或工厂内有各种干扰信号,如振动干扰、电磁场干扰、温度干扰等,加上各类管道纵横交错,有金属管、 相似文献
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快速获取精度高、标准统一、质量可靠、现势性高的地下管线数据,有利于保障服务地下管线数据库和信息管理系统的建设,能够满足城市规划、建设、运行和应急防灾的需要和促进动态更新机制的有效建立,实现地下管线信息管理系统与数字城市和智慧城市的融合,提高城市管理水平,保证城市可持续发展和人民群众的生命财产安全。通过达州市某区地下管线普查项目实施过程,多年从事项目生产管理的经验,就地下管线普查项目的实施过程和质量控制交流一些经验做法,为地下管线普查项目的顺利开展提供借鉴和参考。 相似文献
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S. O. Asamu 《GeoJournal》2004,61(2):183-189
There is a general shortage of potable water in Nigeria, partly through the lack of natural provision and partly because of
rapid urban growth that has largely been unplanned. The paper describes the recent redevelopment of a public water facility
in a run-down area of Ibadan which is part of the Sustainable Ibadan Project. Despite funding from national and international
bodies, the development is strongly based at community level. The local inhabitants feel they have control over their own
water supply through their representatives on the various planning and managing committees. This aims to reduce vandalism
and to increase pride and involvement in the community.
The project is a pilot for other projects around Ibadan, some of which have begun and others are being planned. This paper
describes the administrative structures and management principles that have been employed. It forcefully advocates community-based
planning and management which respects both the environment and the water-users, and involves a major “bottom-up” element.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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A number of local, regional, state, and federal programs are in place that strive to protect and restore coastal waters and habitats, and which specifically address eutrophication and nutrient over-enrichment. There are, however, no easily implemented and reliable methods or sources of data and information for citizens, coastal managers, elected officials, and agency staff who are responsible for managing a coastal area to determine sources of nutrients and potential impacts to coastal waters. Coordination among federal and local agencies remains inadequate. In the few examples of successful coastal nutrient management programs, effective nutrient management strategies are often partnerships of national, regional, and local efforts. The recent National Research Council (2000) examination of issues and management options calls for development of a National Coastal Nutrient Management Strategy, coordinated between national, state and local programs, academia, and the private sector. The proposed National Coastal Nutrient Management Strategy includes recommendations for local programs to consider in developing an effective nutrient management strategy, such as setting goals for restoration, determining nutrient reductions needed to meet goals, and monitoring results. The proposed strategy also identifies priority actions which federal programs should consider, including identifying gaps and overlaps in existing and proposed national programs for all aspects of nutrient over-enrichment; increasing accessibility to data, information and expertise on nutrient over-enrichment causes, effects, and management options; and setting clear guidelines for nutrient loads. A nationally consistent monitoring program and targeted research, specifically for atmospheric deposition, seasonal variability of nitrogen and phosphorus enrichment effects, the role of specific nutrients in the occurrence of harmful algal blooms, and economic impacts of nutrient over-enrichment were also identified as priority needs. 相似文献
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Freshwater inflow: Science, policy, management 总被引：1，自引：0，他引：1
Paul A. Montagna Merryl Alber Peter Doering Michael S. Connor 《Estuaries and Coasts》2002,25(6):1243-1245
The papers in this special issue were presented in a special session during the 2001 biennial conference of the Estuarine Research Federation held in St. Pete Beach, Florida. The session, “Freshwater inflow: Science, policy and management,” was focused on issues related to reduced freshwater inflow to estuaries. The session brought together scientists, managers, and regulators, and included presentations on the estimation of freshwater input to estuaries, development of ecological indicators to assess changes in inflow, management strategies used to set freshwater requirements, and experiences with the reintroduction of freshwater to restore inflow. 相似文献
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Pieter H. Nienhuis 《Estuaries and Coasts》1992,15(4):538-548
A number of major European rivers (especially the Rhine) have a prevailing influence on the nutrient cycling of most Dutch estuaries. Owing to the increased loading of the estuaries with nitrogen and phosphorus compounds, effects of eutrophication on the biological communities are most evident in the tidal Western Wadden Sea and in a nontidal brackish lagoon, Veerse Meer. Whether the relation between changed nutrient loadings and changed biomass and production of primary and secondary producers in the turbid tidal Dutch ecosystems should be considered as a causal relation is questionable. The very widespread practice of lagoon modification confuses the effects of nutrient loading. 相似文献
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William H. Herke 《Estuaries and Coasts》1995,18(1):10-17
Most of Louisiana’s economically important saltwater fishes and crustaceans spawn in the Gulf of Mexico, but their young must use the vast coastal marsh as their nursery. Marsh management in Louisiana usually consists of emplacement of levees and water-control structures in the marsh. These structures significantly reduce fisheries production and offshore recruitment. In addition, in 1987 private entities were authorized to use 32,380 ha of the marsh for experimental mariculture, which (if successful) will likewise lead to greatly reduced natural fisheries production and offshore recruitment. Private interests also nearly succeeded in legalizing entrapment and eventual harvest of the wild fisheries from 100,000 ha, and 20,000 ha, of the marsh in 1991 and 1992, respectively. The effects of all these threats to natural fisheries production are further complicated by Louisiana's confused legal situation regarding coastal land ownership. 相似文献