Impact Assessment Model of Bird Species for Land Developments

개발사업에 따른 조류종 영향평가모형 개발 및 적용

  • Lee, Dong-Kun (Dept. of Landscape Architecture and Rural System Engineering, Seoul National University) ;
  • Kim, Eun-Young (Research Institute for Agriculture and Science, Seoul National University) ;
  • Lee, Eun-Jae (Dept. of Forest Science, Seoul National University) ;
  • Song, Won-Kyong (Dept. of Landscape Architecture and Rural System Engineering, Seoul National University)
  • 이동근 (서울대학교 조경.지역시스템공학부) ;
  • 김은영 (서울대학교 농업생명과학연구원) ;
  • 이은재 (서울대학교 산림과학부) ;
  • 송원경 (서울대학교 조경.지역시스템공학부)
  • Received : 2010.02.02
  • Accepted : 2010.06.11
  • Published : 2010.06.30

Abstract

Forests are being seriously fragmented as a result of land development. Land development with disregard to its subsequent environmental impacts is a primary threat to biodiversity by incurring massive habitat losses and changes in structure and composition of forests. The purpose of this study was to develop the impact assessment model for quantitative distance or degree of disturbance by land developments. This study conducted a survey about structure and composition of forest species to determine degree of impact from land development. The edge effect of forest fragmentation on the number of bird species, population size, and bird diversity was obvious. In particular, the bird diversity sharply declines around the forest edge where intensive land development projects take place. To assess the disturbance of forest species, the factors selected were the bird diversity and the rate of edge species. The impact assessment model about bird diversity was explained by type of forest fragmentation and type of vegetation ($R^2$=0.23, p<0.005). The other model about edge species explained by a distance, type of forest fragmentation, type of vegetation, and width of road ($R^2$=0.34, p<0.001). In order to test the applicability of the model developed in this study, the models was applied to the Samsong housing development in Goyang-si, Gyunggi-do. The impacts of land development on the bird species were reasonably quantified to suggest effective mitigation measure. The impact assessment model developed in this study is useful to assess the magnitude of disturbance of bird species. Particularly, the model could be applied to the current Environmental Impact Assessment practices to predict and quantify the impacts of land developments projects on forest bird species.

Keywords

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