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The Security Assessment of Regional Land Ecosystem

Author: WangZeng
Tutor: FuMeiChen
School: Chinese Geology University (Beijing)
Course: Resource management projects
Keywords: Ecological Security Assessment Biodiversity Landscape Ecology Value of ecosystem services Muan
CLC: F301
Type: Master's thesis
Year: 2011
Downloads: 165
Quote: 0
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Abstract


Land ecosystems is land between the constituent elements and their inter-linkages between environment , interdependence and constraints posed by the open, dynamic , hierarchical and feedback system . With China's rapid social and economic development , population growth , the formation of the enormous pressure on land resources , resulting in a lot of land ecological security issues. Therefore, the regional land ecological security evaluation system , a reasonable regional land use is very necessary. Regional Ecological Security Assessment in many ways, but due to the different evaluation methods focus on different , so different evaluation method can reflect certain problems , but also has some shortcomings . How to be more scientific to regional land ecological security evaluation system is the current study was to investigate the problems of many experts . In this paper, Wu'an , for example, the assessment of ecological integrity \ways to build \Studies are as follows : ( 1 ) introduction of the \( 2 ) through the structural stability and ecosystem security association established to patch density , diversity index, fractal dimension , combined with the degree of index-based system architecture considerations index system , using the method of evaluation of landscape ecology landscape structure stability . ( 3 ) the value of ecosystem services was constructed based on ecosystem function index system to evaluate the degree of ecosystem outputs and to determine the value of ecosystem services evaluation unit security level . ( 4 ) \

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CLC: > Economic > Agricultural economy > Agricultural economic theory > Land Economics
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