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Application of habitat evaluation procedure with quantifying the eco-corridor in the process of environmental impact assessment

Title
Application of habitat evaluation procedure with quantifying the eco-corridor in the process of environmental impact assessment
Authors
Choi J.Lee S.
Ewha Authors
이상돈
SCOPUS Author ID
이상돈scopus
Issue Date
2019
Journal Title
International Journal of Environmental Research and Public Health
ISSN
1661-7827JCR Link
Citation
International Journal of Environmental Research and Public Health vol. 16, no. 8
Keywords
Eco-corridorEcological evaluationHabitat evaluation procedureRoad constructionRoadkill
Publisher
MDPI AG
Indexed
SCOPUS scopus
Document Type
Article
Abstract
In contrast to other fields, environmental protection (e.g., habitat protection) often fails to include quantitative evaluation as part of the existing environmental impact assessment (EIA) process, and therefore the EIA is often a poor forecasting tool, which makes selecting a reasonable plan of action difficult. In this study, we used the Habitat Evaluation Procedure (HEP) to quantify the long-term effects of a road construction project on an ecosystem. The water deer (Hydropotes inermis) was selected as the species of study since it uses an optimum habitat; water deer habitat data were collected on vegetation cover, stream water density, geographic contour, land use class, and road networks. The Habitat Suitability Index (HSI) and Cumulative Habitat Unit (CHU) values for the water deer were estimated to investigate the major land cover classes, the national river systems, and vegetation cover. Results showed that the environmental impact in the road construction project area would result in a net ecological loss value of 1211 without installation of an eco-corridor, which reduced to 662 with an eco-corridor, providing a 55% increase in the net value after 50 years of the mitigation plan. Comparing the 13 proposed ecological mitigation corridors, the corridor that would result in the highest net increase (with an increase of 69.5), was corridor #4, which was regarded as the most appropriate corridor to properly connect water deer habitat. In sum, the study derived the net increase in quantitative values corresponding with different mitigation methods over time for a road construction project; this procedure can be effectively utilized in the future to select the location of ecological corridors while considering the costs of constructing them. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
DOI
10.3390/ijerph16081437
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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