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Application Of Landscape Ecology Research On Highway Construction On The Impact Of The Ecological Environment

Posted on:2009-04-07Degree:MasterType:Thesis
Country:ChinaCandidate:J D YangFull Text:PDF
GTID:2132360248451668Subject:Resources and Environmental Information Engineering
Abstract/Summary:
As China's economy sustained and rapid development to the main highway for the rapid transportation network has made rapid development. Along the highway to the development of natural resources, tourism resources, the development of local economies, promote regional exchanges, improve the investment environment, strengthen national defense construction, and other aspects of great significance, but it also brought some serious ecological problems. Therefore, in highway construction on the ecological environment impact assessment of highway construction and realization of social, economic and environmental benefits of mutual coordination and promotion of road transport for sustainable development is of strategic importance.In this paper, with the Suiyuezhong highway as an example, try to use methods of landscape ecology principle, landscape from the spatial structure and stability both on the highway along the 500 m buffer zone on each side of the ecological environment for the conduct of the ecological environment impact assessment and evaluation results Fuzzy comprehensive evaluation method used for testing and comparison methods to explore the use of landscape ecology at the regional environmental impact assessment of the role and characteristics, while the mountain landscape along the highway in the ecological construction guidance and suggestions.Through analysis and comparison: Landscape Ecology is more concerned about road ecology before and after the completion of the details on the structure and functions of landscape whether or not match, pay attention to the internal structure of space, roads between the ecological environment of the logistics system, energy flow in exchange cycle Impact and therefore a more accurate reflection of the overall ecological environment. Use of landscape ecology in ways that the mountain highway construction on the ecological environment affect the conclusions:1 With the Suiyuezhong highway in the buffer zone along the 500 m before and after the construction of its superintendent, block evenness index (E) The results are before the construction of the 0.88 decreased to 0.82, in line with construction projects serious interference to reduce heterogeneity.2 On both sides along the highway before and after the completion of the 500 m buffer zone for the forest to die, before the suffix building block diversity and uniformity index in the lower edge of the forest land dropped to 49.85 percent from 45.09 percent, the advantages of building land has increased. 3 With the mountain roads in the region in the high-grade biomass, but the impact of the construction of roads and highways along the lower biomass, because at this time along the lower biomass, it tends to be tampered with after the resumption of faster speed.4 With the completion of highway in the mountain eco-level from grade iii level dropped to iii that of the mountain highway when completed, the quality of its ecological environment from the general good, but the ecological quality in the EQ on the line, the impact on the ecological environment is not Large.
Keywords/Search Tags:Highway Construction, Landscape Ecology Method, Ecological Environmental Impact Assessment
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