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In recent years, researchers pay increasingly attention on river ecological restoration at home and abroad. According to the practical situation of Tianjin Airport Economic Park river water environment and inter-external experiences, several ecological techniques, such as phytoremediation, artificial aeration and ecological riverbank, were adopted to river ecological restoration. And related operation...
On the base of character of quality and quantity of mine water, ant colony algorithm is applied to optimize the site of purification plant. Aiming to industry, irrigation of agriculture, water supply of ecologic and living rural and urban residents, setting the maximum of net yield water supply, environment efficiency and society overall efficiency as object functions, using the capacity of water...
In view of there's no generally accepted ecological compensation standard and method, it might induct the negotiations in the process of ecological compensation of water source, government in water source and in downstream of the basin according to the respective rights and obligations, and distinctive nature of water characteristics, through negotia- tions to establish their compensation standard,...
Payment for watersheds services (PWS) is an important instrument of watersheds protection and management, which can transform fortune and reduce the inequity of environment and development between the upper reach and lower reach. Both government and market play a key role in the course. Based on case study of Jinhua River, the analysis on the payment mechanism and modes of environmental services and...
Using the data on land use and land cover change (LUCC) compiled from Landsat images of 1987 and 2002 and field survey in the arid inland river basin, water resource changes induced by land use were studied. The results reveal that significant changes in land use occur within the whole basin over the study period and cause such decline of groundwater table and degeneration of surface water and groundwater...
Water quality is an important global issue, requiring effective management, which needs good predictive tools. While good methods for lake water quality prediction have previously been developed, accurate prediction of river water quality has hitherto been difficult. This project combines process-model and data mining approaches through evolutionary methods, resulting in tools for more effective water...
A risk assessment for water shortage is constructed to analyze the carrying capacity of water resources in Sheshui River watershed, China. It is based on the information of present economic development. There are several serious environmental problems which might cripple the development potential in Sheshui River watershed. Risk assessment results are used to analyze the carrying capacity of water...
The utilization of rainwater is essential to improve ecological environment of sub-district, and is one of main approaches to achieve sustainable water resources.Taking rainwater collection and utilization of Beifang Garden district as an example in Fuxin city of northeast China, water quality analysis and water quantity balance calculations are completed, also the feasibility and necessity of rainwater...
Due to the increasingly serious ecological degradation of offshore systems, the study on offshore water quality health has attracted more and more attention of the researchers and decision-makers. In this paper, water quality health assessment of offshore area in north branch of the Yangtze River Estuary from July 2006 to January 2007 was studied by fuzzy comprehensive evaluation method. The water...
Wetland is a kind of land resources and also a kind of ecological environment, it play more important role in people daily lives. Wetland has the vital role in the ecosystem such as storage of water, transformation of nutrients, especially its water purification function, which has important economy and ecological value. The wetlands water purifies mainly aims at nitrogen and phosphorus which causes...
A water environment security assessing system is constructed to respect the water environment security situation on pollution source, water quality, and ecology along Luan River to Tianjin Diversion Project. The model for assessment is proposed based on multi-hierarchy fuzzy theory. The corresponding assessment indexes, quantitative standards and weight functions are established. The system and method...
Baiyangdian is the largest wetland in north China, and plays an important role in many aspects such as climate regulation, biodiversity protection, flood control, and local fishery production etc. the research of this paper include the following four aspects: 1) The composition, current situation, and changing tendency of sub-systems that constructed the whole system. 2) Building up the system model...
Water resource is a crucial factor in social and economic development and ecological protection in arid and semi-arid areas. The unbridled development and use of water resources in the lower reaches of the Tarim River over the last 50 years have led to a serious ecological degradation: (1) groundwater level drop. (2) water quality deterioration. (3) land desertification and frequent natural disasters...
A water balance model is established in this paper. The relationship between water requirement and lake ecosystem is built and reflected by the appropriate water level to protect lakes and wetlands. And some measures of controlling human management action with water limit are put forward by the example of the Baiyangdian Lake.
The research covered in the suggested article is meant for ecological monitoring in the broad sense. The express-method of water solution quality level estimation and the technique of fast response to the quality level of industrial, agricultural and domestic wastewaters along with food products are proposed. The novelty of the proposed technique roots in the implementation of suggested methods and...
This work addressed the integrated project management of water resources in a costal city, Haihou City in China. Based on investigation of renewable water resources distribution, an underground water storage project was carried out for water safety utility and seawater intrusion prevention in the new planned city area. Methods for surface water reuse and seawater intrusion prevention were integrated...
Getting an objective, scientific and general ecosystem health assessment is the precondition and foundation of watershed management. This paper reviewed the concept and content of the NWA assessment system (natural constraint factor-watershed health indicator factor-anthropogenic disturbance factor" assessment system), and selected twelve indicators and constructed the model based on the character...
Against the background of conspicuous problem of river pollution in Chinapsilas water resources affairs, we made a case study on the Ji River of Gansu Province to apply the principle that water can be naturally purified by plant communities to the functional division and tackling plan of the urban rivers in northwest China. The district section of the Ji River is mainly divided into three parts: (1)...
Study on eco-environmental water requirement was of great significance in the planning and regulation of ecological water system, and the regional optimization of water resources. The river ecological water requirement is the core of the study. In this paper the meaning of eco-environmental water requirement and ecological status of lake are discussed. Based on the environmental flow of natural ecosystem,...
It is obvious fact that water resource is very important for eco-environment and sustainable development of arid area. Climate change threatens water resource availability through affecting components of hydrological cycle. It also has an impact on the safety and quality of social and natural environment through an increase of floods, droughts and erosions, and a decrease of water quality and ecosystem...
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