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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...
Submerged aquatic vegetation (SAV) is a potent water-purifying agent enhancing integrity of lake ecosystems. Therefore, mapping the distribution of SAV in lakes is very important for managing the water quality and serves to conservation purposes. Current method for mapping SAV, i.e. collecting plant samples from shore, is not applicable to mapping wide areas. Here we report the novel method for mapping...
Bosten Lake, which locates in arid and desert zone, is the largest lake in Xinjiang, and is the largest inland freshwater lake in China. It has giant value in environment, ecology and economy. The water level of Bosten Lake has taken place tremendously in the recent 50 years, the water level descended from 1048m above sea level in 1958 to that of 1045m in 1987, and ascended from 1045m to 1048.9m during...
Growing population and rapid economic development lead to increasing pollution loading and lowering water quality. Protection of water environments is our glory target; The key strategy is: combining management of the land-water system in catchment and realizing the quasi-non-pollution release in an as small as possible catchment area.”; developing the high technology for realizing this target in...
Seasonal characteristics of the total nitrogen TN), total phosphorus (TP) and other factors in the sediment and water in the Yuyuantan Lake were analyzed. Correlation among all forms of P was estimated considering the seasonal variations of TP. The result showed that the concentrations of TN and TP are lower in summer and higher in autumn. All nutritional indexes are much higher in the west of lake...
The contents and characteristics of ten heavy metals in surface sediments from Yangzonghai Lake in Yunnan, China were analyzed. Ecological risk index presented by Håkanson to assess the potential ecological risk of Yangzonghai Lake was utilized. The results showed that the average concentrations of titanium(Ti), manganese(Mn), zinc(Zn), vanadium(V), chromium(Cr), copper(Cu), nickel(Ni), cobalt(Co),...
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...
So far many toxicologic studies are made earlier; we studied the acute toxicity estimation related to some specific identified freshwater zooplanktons of Paradip (Harbour City) area of Jagatsingpur District, Orissa, India which is situated on the bank of Mahanadi River. The study area is prone to heavy metal pollution because mineral based industries in relation to zinc, lead and cadmium are common...
A system of wetland monitoring and Eco-health assessment has been set up based on 3S. The system is be made up of information management subsystem, assessment subsystem, prewarn subsystem, other management subsystem. Taken Huixian wetland of Guilin as the object of study, the system made to operating, the result show that the wetland state of health is bad, CEI=0.364. The building of the system is...
Invasive polycheate tubeworms of the reef-building species Ficopomatus enigmatus have taken advantage of reduced water levels and increasing salinities since 2007 to become established in the Lower Murray Lakes of the South Australia. Methods to remotely detect and map reef formations using digital aerial imagery in a contextual approach utilizing both image analysis and GIS processing with bathymetric...
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,...
According to climate, vegetation, geomorphology, the degree of the Kaschin-Beck disease and geology, hydrogeology, soil, the degree of original environmental transform as well as the difference of the disease, etc., the authors divided the east of Jilin province into three ecological environmental zones (A,B,C), compares the situation among three zones, then draws conclusions as follows: Kaschin-Beck...
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...
The papers depict application of Rapid Impact Assessment Matrix (RIAM), in evaluating the impacts of construction of new marina and enhance the beaching area. In order to have an integrated approach for the impact assessment, the methodology of RIAM was used. RIAM is ideally suited to all EIA where a multi-disciplinary team approach is used, as it allows for data from different sectors to be analyzed...
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...
In this paper, the measured date of air environment quality, water environment quality, acoustic environment quality and solid wastes in the Kanas National Natural Heritage Site of China during different periods were compared, the main factors resulting in the tourist environment pollution were evaluated, and corresponding ecological design approach for controlling tourist environment pollution was...
The national water quality monitoring in the Lithuanian Baltic Sea waters has started fifty years ago. Consistently implemented long-term monitoring programs are critical for detecting changes in water environment in frame of rapidly changing climate and increasing anthropogenic activity on coastal waters. Nevertheless, conventional sampling methods cannot produce enough data about spatial and temporal...
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...
Wetlands are being degraded or lost because their ecological functions were not paid much attention. The restoration of degraded wetland ecosystems has become a focused issue in the world. Based on foreign and domestic research achievements, the effects of artificial restoration of degraded wetlands on plant communities, soil microbial communities and biogeochemical cycles of carbon and nitrogen are...
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