야생동물 이용빈도 및 종다양도를 활용한 생태통로 효율성 평가
Evaluation of Wildlife Crossings Eeffectiveness on Use Frequency and Diversity Indicators of Wildlife
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초록
본 연구는 백두대간 등 주요 생태축에 위치한 생태통로 49개소를 대상으로 야생동물 일평균 이용빈도 지표와 주변 서식지와 출현종의 수를 비교한 종다양도 지표를 활용하여 생태통로 효율성을 평가하였다. 분석 결과, 전체 생태통로 일평균 이용빈도는 1.4회였으며, 평균을 상회하는 생태통로는 17개로 전체의 34.7%로 확인되었다. 주변 서식종의 수와 출현종의 수가 동일한 종다양도 1.0 이상인 생태통로는 18개로 전체의 36.7%으로 나타났다. 일평균 이용빈도와 종다양도 모두 양호한 생태통로는 10개로 전체의 20.4%로 분석되었다. 효율성이 양호한 생태통로 중 4개소의 생태통로 지침 준수율 등에 대한 현장조사 결과를 검토한 결과, 위치선정·규격·식재 및 토양·유도울타리 등에서 덕산재 육교형 생태통로의 지침 준수율이 가장 양호했다. 본 연구결과는 신규 생태통로 및 기설치된 생태통로의 기능개선 등 생태통로 효율성 연구의 기초자료로 활용될 수 있을것으로 판단된다.
Abstract
In this study, 49 major WCS(Wildlife Crossing Structure), including Baekdu-daegan, were evaluated for the effectiveness of WCS on using the daily average frequency index and diversity Index comparing the number of species that appear with the surrounding habitats. According to the analysis, the average use frequency of the entire WCS was 1.4 times, and the average number of WCS exceeded the average was 17 and 34.7 percent of the total. There were 18 WCS with the same number of habitats and species that appeared in the same area, or 36.7 percent of the total. The daily average use frequency and variety were all analyzed at 10 efficient WCS, accounting for 20.4 percent of the total. According to the results of an site survey on the compliance rate of 4 efficient WCS, the compliance rate of the Deoksanjae overpass was the best in location selection, specifications, vegetation cover and soil, fence. The results of this research will be used as basic data for the study of WCS effectiveness, including the improvement of functions of new and installed WCS.
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