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Taking Second Songhua River as the study area, established the SQL Server-based spatial data warehouse. On this basis, using GIS, statistical data mining, visualized data mining and BP neural network to finish data preprocessing, build water quality assessment forecast model, and analyze spatial distributing of water quality. The results show that it is adapted to manage and analyze the spatial data...
A case study on the impact of land use/cover change on shallow groundwater quality in the oasis over the Sangong River Basin, Xinjiang, China, is carried out by applying RS, GIS and geostatistical analysis. The data used in this study include the TM images in 1987, ETM images in 2004 and test data of groundwater quality sampled from 77 wells in 2004. Results indicate that the hydrochemical characteristics...
Through investigating different types of Mining, guiding by principles of science, integrity, practicality, lead and level, this study established a scientific and practical evaluation system of the mine environment quality which can provide a theoretical basis for evaluating the quality of mine environment objectively. Using expert experience evaluation method, the subsystems of mine environment...
By utilizing TM/ETM+ remote sensing images from 1984 to 2004 as the major data sources, combining with the field survey to get the rule of dynamic process of Beijing wetland ecosystem, this paper systematic analyzed the hydrology, soil, plant condition of the typical wetland area- Widgeon Lake Wetland Natural Reserve in Beijing. And the results are as follows: In recent years, wetland areas were sharply...
The village of Wum, located in the Northwest province of Cameroon, West Africa, is home to over 30,000 people, most of whom gather water from local, contaminated streams and are vulnerable to many water-borne and water-related illnesses. Not only is their water ridden with bacteria, but they are also unable to collect sufficient amounts of water due to low supply in the streams and the distance they...
Sustainable development is widely practiced by many engineers, academicians and policy makers for making the industries environmental friendly, to obtain sustainability in any industry there are many methods. Resources utilized in an industry should be identified properly in various processes and its utilization is to be optimized to increase the environmental performance of the industry. Ecomapping...
It can serve for the city planning scientifically and improve the people's knowledge about the detailed surroundings by evaluation of urban environment status from high resolution satellite images. Environmental factors such as vegetation type and coverage, water area and water pollution can be known from the images directly, the population density can be calculated from the building structure, the...
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