서식지 등가성 분석을 이용한 연안의 대체서식지규모 산정

Estimation of Replacement Habitat in Coastal Zone Using Habitat Equivalency Analysis

The preservation of the coastal resources and environment is emerging as a large concern worldwide since the coastal zone have been damaged from ongoing national land development and natural disaster lately. South Korea has very well developed coastal zone, which is a region where interaction of the sea and land processes occurs. Therefore, coast improvement projects, which aims to preserve domestic coastal health, including coast preservation project and waterfront renovation project are being enforced. However, the act on the restoration of the coastal habitat is absent. In the United States, Japan, and Europe, the act on the creation of the replacement habitat is enacted to prevent further loss of coastal habitats. This study introduces a way of determining the scale of replacement habitat creation for coastal habitat restoration by using the habitat equivalency analysis. This study also calculate the scale of the replacement habitat based on domestic site using Visual_HEA. As a result, creating replacement habitat of the eelgrass habitat in Koje Bay, where the eelgrass was damaged by road construction, depends on the types of restoration. In case of off-site restoration, 1.729 km² of replacement habitat is needed, which is about 106percent of the injured area. In case of on-site restoration, 0.075 km² of additional replacement habitat is needed, which is about 4.6percent of the injured area. These results can suggest quantitative restoration scale to prevent further loss of coastal habitats and also can be used as the basis to determine the policies for efficient use and preservation of the natural resources.