Assessing the Habitat Suitability of Dam Reservoirs: A Quantitative Model and Case Study of the Hantan River Dam, South Korea

The main objective of this study was to investigate ecologically healthy regions near a dam reservoir. This study developed a model for assessing habitat suitability as a proxy for the ecological value of reservoirs. Three main factors comprising nine assessment variables were selected and classifie...

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Bibliographic Details
Published in:Sustainability 2016-11, Vol.8 (11), p.1117-1117
Main Authors: Kang, Hyeongsik, Um, Myoung-Jin, Park, Daeryong
Format: Article
Language:English
Subjects:
Case studies
Construction
Dams
Ecosystems
Environmental protection
Environmental restoration
Geographic information systems
Habitats
National parks
River ecology
Spatial analysis
Sustainability
Variables
Vegetation
Wildlife conservation
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Summary:The main objective of this study was to investigate ecologically healthy regions near a dam reservoir. This study developed a model for assessing habitat suitability as a proxy for the ecological value of reservoirs. Three main factors comprising nine assessment variables were selected and classified as having a habitat suitability (HS) between 0 and 1: (1) geomorphic factors of altitude, slope steepness, and slope aspect; (2) vegetation factors of forest physiognomy, vegetation type, and tree age; and (3) ecological factors of land cover, ecological quality index, and environmental conservation value assessment. The spatial distribution of the nine HS indices was determined using geographic information systems and combined into one HS index value to determine ecologically healthy regions. The assessment model was applied to areas surrounding the Hantan River Dam, South Korea. To verify the model, wildlife location data from the national ecosystem survey of the Ministry of Environment were used. Areas with an HS index between 0.73 and 1 were found to contain 72% of observed wildlife locations. Ecologically healthy areas were identified by adding the indices of each variable. The methods shown here will be useful for establishing ecological restoration plans for dam reservoirs in South Korea.
ISSN:2071-1050
2071-1050
DOI:10.3390/su8111117