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The following topics are dealt with: environmental science and information technology applications; global environmental change and ecosystems management; sustainable exploitation and utilization of resources; graphics and image processing; spatial information system; remote sensing application.
A lake comprehensive function assessment index system was set up and the weight of each index was calculated by the analytic hierarchy process method, and also the grade of lake function comprehensive index was regulated. Based on the lake function comprehensive index, it can be decided that the lake comprehensive function is good or bad. Honghu lake function was assessed by this method and its result...
Based on the combination of RS and GIS technology, with the method of threshold and spatial analysis, we study the distribution of snails in Honghu City in the year of 2001. The result shows that there are 82.77% areas of snail distribution in ditch which distributes as linearity and network. It indicates that this kind of environmental condition is suitable for snails to breed. Through local investigation...
This paper studies the present state of water and soil loss in the Hubei province. Chinese scholars have analyzed the causes of water and soil loss, and pointed out that both natural factors and human activities are the root causes for these losses. The associated natural factors include the landscape, soil, groundwater and precipitation. Since the climate in this area is subtropical monsoon, heavy...
This article first elaborates the evolution of human-water relationship in the middle reaches of Yangtze River. In the ancient times, natural habitats of the human species were centered around large water and grass rich areas. People maintained an orderly and complete relationship with the water-environment, with the progression of time agricultural societies, begun to exploit the Two-Lake Plains...
The purpose of this document is to communicate an economic vision for Urban Economics. Solving the environmental problems associated with urbanization requires lateral thinking, or rather vertical thinking. Problems abound when considering the environmental challenges of an increasingly urban society. Among these are a decreasing vegetation cover of the soil, water absorption capacity, shade and temperature...
The wetland ecosystem is a special natural complex formed by reciprocity between land and water. In recent years, there have many studies about wetland ecosystem in China. The aim of this paper is to summarize the ldquohot research topicsrdquo in the wetland ecosystem researches of China, which include value evaluation of wetland ecosystem services; circulation of materials; evaluation of wetland...
This study aims to develop a methodology for analysis of physicochemical characteristics of municipal solid waste incineration (MSWI) fly ash. In this work, microstructure, particulate size distribution and components of fly ash were investigated using SEM, laser particulate description analyzer, ICP, XRF, IR and XRD. It is found that content of chemical components follows sequence of CaO > SiO...
In this paper, the old simple Municipal solid waste (MSW) landfill pollution risk in China were analyzed. In order to control environment pollution, some countermeasures, such as constructing landfill cover, subsurface vertical barrier, installing bio-filter to reduce CH4 emission, pumping and treating the contaminated water, were working out and analyzed in detail.
Extensive research has been done to find the effect of enhanced UV-B (280-320 nm) radiation on ecosystem, however, the available information related to the effect of UV-A (320-400 nm) on ecosystem is limited. It merits further studies due to the facts that UV-A constitutes a major portion of the solar radiation and passes through the stratospheric ozone layer almost unattenuated. To investigate the...
In this paper, the author taking the geological problem of environment and occurred geological disasters evaluating objects, apply GIS HAP to evaluate three subsystems of rock environment, environmental soil, water environment which affect the quality of geological environment of Wuhan megalopolis. By analyzing the main factors which affect the subsystems, the author establishes subsystem hierarchy...
Snow drifting is a typical disaster which blocks traffic lines in cold regions. The occurrence of snow drifting disaster is frequently influenced by topography, but the original topography is transformed to some extent owing to the construction of railway, and the wind flow field of this region thus changed, moreover, the accumulated region of drifting snow and the characteristics of its distribution...
In order to settle the problem of blindness before installations of PV arrays, a methodology for precisely estimating the generation capacity of standalone photovoltaic (SPV) systems is investigated. The proposed model for the calculation process is based on the local solar radiation data and the system characteristics and thus has a better precision. A case study of a photovoltaic system by using...
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