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This study was undertaken in Danjiangkou reservoir and the upper reaches, where the SWAT model was used to analyze the space distribution of non-point source pollution. The land-use pattern was interpreted by Environment for Visualizing Images Software (ENVI). The runoff and the sediment data series from 2001 to 2006 were collected to calibrate the parameters and validate the model. The calculated...
As a unique natural region unit and the "buffer zone" which connects reservoirs and its peripheral region, the reservoir shore zone not only provides geographical space and resources-environmental supporting conditions for the local socio-economic development, but also plays a "barrier" role in maintaining reservoir ecosystem services function and protecting the environmental security...
Water pollution in Taihu Lake has become one of the most serious environmental problems that draws public attention and needs to be solved as soon as possible. It was well known that forest could play an important role to control soil & water erosion, uptake extra soil nutrients as well. However forest coverage is rather low and woodlands are extensively managed in the headwaters region. Thus...
The paper investigated the effects of irrigation of poultry waste water on soil fertility and biomass production of cabbage in accordance with the standard of Environmental Technical Terms for Green Food Production Area (NY/T391-2000). The results showed that irrigation of 46.88m3 per hectare every 10 days resulted in the highest production of biomass of cabbage as well best soil fertility index....
In this article, a series of ecological environment problems of Liaocheng city, such as the exploitation of groundwater, water-pollution, air pollution, noise, land salinization, and forest cover rate are discussed in details. Taking these problems into consideration, the author puts forward some feasible strategies and suggestions which can direct the development of eco-environment in a right way...
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...
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...
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