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Study On Landscape Ecology And Press-state-response For Ecological Environment Evaluation Of Country

Posted on:2012-05-02Degree:MasterType:Thesis
Country:ChinaCandidate:M M TanFull Text:PDF
GTID:2211330362956775Subject:Environmental Engineering
Abstract/Summary:PDF Full Text Request
China is a truly ancient agricultural country, which has the vast rural regions and large rural population of about 54%. To protect and improve ecological environment in rural areas is an important content to realize construct"well-off society". But, the rural ecological environment has been a huge impact now, the traditional rural landscape ecological is in danger of extinction. Human activity is a significant impact on rural environment as the most direct factor, the irrational development and utilization of rural resources, the irrational land use planning, unreasonable allocation of rural landscape resources, all make the ecosystem began to appear serious ecological crisis, which not only affects the human production and life, but also brought great pressure to the rural economy and agricultural development. So it is very important to research how to evaluate the rural ecological environment in rural areas.The paper made research on the following aspects, based on National Science and Technology Support Program participated in:(1) Analyzed and evaluated the rural landscape. Classified the general type of rural patch type, and selected the landscape pattern index from patch level and landscape level, and then used spatial pattern evaluation method of"Patch-Corridor-Matrix"model to evaluate the rural landscape pattern and analyze the stability of rural landscape.(2) Set up P-S-R model of the rural ecological environment evaluation. After clearly defining the characteristics of the rural ecological environment, the paper selected pressure-state-response model (PSR) to establish evaluation index system of rural ecological environment, and then summarized the general process of PSR evaluation.(3) Established the LE-PSR evaluation model of the comprehensive rural ecological environment evaluation. In accordance with the method of AHP, designed LE-PSR ecological evaluation index system, and proposed evaluation criteria and evaluation methods.Finally, Used Yanhe village in Gucheng as the main research object, verified the feasibility of the evaluation model.
Keywords/Search Tags:Country, Ecological Environment, Landscape Ecology, LE-PSR, Yanhe Village, Assessment
PDF Full Text Request
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