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我国城镇可持续发展的水资源问题与对策 总被引:8,自引:1,他引:7
本文简述了甸水资源的现状,指出水短缺和水污染是制约我国城镇可持续发展的两个主要问题,并探讨了解决问题的对策,强调工农业及城市用水的节水,实施污水间和海水利用等方法开发新水源,进行科学的水资源管理。 相似文献
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高效液相色谱法在水质监测中获得较为广泛的应用,可检测水和废水中的多环芳烃,农药,酚类,烷基苯,苯胺,梁料,酞酸酯,金属类等化合物。1989年我国首次将高效液相色谱法列为《水和废水监测分析方法》,从而表明了我国的环境监测技术已提高到了一个新的水平。 相似文献
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一、概论 铜矿随着矿石的开采,矿石大量地暴露在空气中。在水、微生物和酸的作用下,矿石中的硫化物被氧化产生硫酸。硫酸溶解矿石中铜、铁和其它金属的氧化物,形成含铜、铁离子的酸性水。这个过程就是“自然浸出”过程。目前我国许多铜矿都有不同程 相似文献
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中国流域水环境保护规划体系设计 总被引:1,自引:0,他引:1
现行与流域水环境保护相关的规划很多,但是由于各地区、各部门协调不足,规划间没有明确的关系,缺乏接口和控制,规划内容不统一,致使流域水环境保护规划没有形成体系。基于流域水环境保护相关规划存在的问题和当前的政府管理体制,提出了由国家流域水环境保护总体规划、小流域水环境保护规划、城市水环境保护规划和大点源水污染物减排规划构成的流域水环境保护规划体系。明确了该体系内,上级规划通过审批和评估实现对下级规划的指导与控制,规划之间的衔接关系体现为指标的联结。同时,提出了制定流域水环境保护规划法规、制定规划编制规范和指南、建立信息共享平台等建议。 相似文献
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The Pearl River Delta Economic Zone is the most dynamic economic area in South China. One of the major problems in the region is the sustainable utilization of the water resources. On the basis of analysis of the water environment status and pollution sources, it is suggested that domestic sewage is the primary cause of pollution. Two new concepts "degradation coefficient" and "degradation volume" of water resources, due to pollution, which may be used to assess macroscopically the carrying capacity of the water resources and sustainability of the water environment, are proposed by the authors. The results calculated indicate that the volumes of degraded water resources will be up to 204, 352, and 537 million m3 in 2002, 2010, and 2020. It is suggested that water for daily consumption and domestic sewage must be controlled more effectively and there should be cross-regional coordination in tackling problems of water environment. 相似文献
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Since China has the largest population in the world, the available water resources per capita in China are very limited. With
the rapid economic development that is currently occurring, the shortage of water resources at the national level has become
extremely critical. How to solve the problems due to water scarcity and water pollution has received increasing attention
from the Chinese government and various communities. In order to provide a sustainable development environment for 1.6 billion
people in the future, the whole country has started to reform urban water resources management systems in terms of related
policies, regulations, methodologies, and technologies focusing on improving the efficiency and effectiveness in water use.
Urban water quota management has now become a core strategy in developing a water resources governance model for water demand
management aiming at establishing a water-saving society. This paper introduces the main stages and the processes of implementing
water quota management in China, analyzes the basic principles, and expounds the elements, information foundation, core module
and operational model of the urban water quota management system. It has been demonstrated that urban water quota management
has made some remarkable contribution not only in transforming the pattern of water mode and strengthening water management
enforcement but also in integrating various management methods in saving water and preventing pollution. 相似文献
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本文详细论述了中国和世界的水资源状况,并论述了中国的水资源短缺状况、中国用水的优劣势,以及如何解决中国水资源短缺的措施和基本战略。 相似文献
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Vasilis Kanakoudis Stavroula Tsitsifli Anastasia Papadopoulou Barbara Cencur Curk Barbara Karleusa 《Environmental science and pollution research international》2017,24(25):20173-20186
Cross-border water resources management and protection is a complicated task to achieve, lacking a common methodological framework. Especially in the Adriatic region, water used for drinking water supply purposes pass from many different countries, turning its management into a hard task to achieve. During the DRINKADRIA project, a common methodological framework has been developed, for efficient and effective cross-border water supply and resources management, taking into consideration different resources types (surface and groundwater) emphasizing in drinking water supply intake. The common methodology for water resources management is based on four pillars: climate characteristics and climate change, water resources availability, quality, and security. The present paper assesses both present and future vulnerability of water resources in the Adriatic region, with special focus on Corfu Island, Greece. The results showed that climate change is expected to impact negatively on water resources availability while at the same time, water demand is expected to increase. Water quality problems will be intensified especially due to land use changes and salt water intrusion. The analysis identified areas where water resources are more vulnerable, allowing decision makers develop management strategies. 相似文献
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Li WW Sheng GP Zeng RJ Liu XW Yu HQ 《Environmental science and pollution research international》2012,19(5):1422-1431
Background and purpose
China's environmental problems and pollution control have global implications. China??s water pollution has been increasing with its urbanization and industrialization. Although great efforts have been taken to keep its wastewater discharge standards in pace with the water pollution development and technological advances, many challenges remain. A summary of the past achievements and lessons as well as the current problems in water pollution may provide a basis for future improvements in China and a reference for other countries.Methods
Statistical data are summarized to reveal the evolution of China??s population, wastewater discharge and corresponding discharge standards over the past four decades. In particular, the specific control indexes and number of controlled items are discussed in details. The present water pollution situation is clearly illustrated by the water pollution map and the water quality distribution diagram. A comparison between China??s present wastewater discharge standards and those in the USA and the EU are also presented to find the possibilities for future improvement.Results
The historical origins, major challenges and future perspectives of China??s wastewater discharge standards are overviewed. The barriers and ongoing efforts for standards formulation and implementation are highlighted. Some suggestions for future endeavors are given.Conclusions
China??s wastewater discharge standard system has seen significant improvement over the past decades, but it still has many defects and limitations. Nonetheless, unprecedented great efforts are underway to address all these challenges. More stringent standards and subsequently a cleaner water environment in China can be expected in the near future. 相似文献18.
Meng Xiangmei Wu Lifeng 《Environmental science and pollution research international》2021,28(23):29253-29264
Environmental Science and Pollution Research - Considering the shortage of per capita water resources in China, the paper established a fractional order accumulated grey prediction model (FGM(1,1))... 相似文献
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Wagner W Gawel J Furuma H De Souza MP Teixeira D Rios L Ohgaki S Zehnder AJ Hemond HF 《Ambio》2002,31(1):2-13
Global freshwater resources are being increasingly polluted and depleted, threatening sustainable development and human and ecosystem health. Utilizing case studies from 4 different watersheds in the United States, Japan, Switzerland, and Brazil, this paper identifies the most relevant sustainability deficits and derives general vectors for more sustainable water management. As a consequence of the demographic and economic developments experienced in the last few decades, each watershed has suffered declines in water quality, streamflow and biotic resources. However, the extent and the cultural perception of these water-related problems vary substantially in the different watersheds, leading to specific water-management strategies. In industrialized countries, exemplified by the US, Switzerland, and Japan, these strategies have primarily consisted of finance- and energy-intensive technologies, allowing these countries to meet water requirements while minimizing human health risks. But, from a sustainability point of view, such strategies, relying on limited natural resources, are not long-term solutions. For newly industrialized countries such as Brazil, expensive technologies for water management are often not economically feasible, thus limiting the extent to which newly industrialized and developing countries can utilize the expertise offered by the industrialized world. Sustainable water management has to be achieved by a common learning process involving industrialized, newly industrialized, and developing countries, following general sustainability guidelines as exemplified in this paper. 相似文献
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Huang Kuei-Ying Chiu Yung-ho Chang Tzu-Han Lin Tai-Yu 《Environmental science and pollution research international》2023,30(8):19958-19979
Environmental Science and Pollution Research - The purpose of this paper is to strengthen research concerning the impact of climate change on China’s water resources, in order to avoid... 相似文献