낙동강 수변공원에 서식하는 식물 군집의 종 다양성 분석 : 조사 방법에 따른 차이 비교
Comparison of sampling methods in biodiversity analysis of plant communities living in a riparian park area of Nakdong river
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초록
식물 군집의 종다양성은 정량적으로 측정되며 이때 군집을 조사하는 방법이 결과에 영향을 미칠 수 있다. 본 연구는낙동강 수변 생태 공원 다섯지역에 서식하는 초본 군집을 대상으로, 세 가지 군집 조사 방법(modified Whittaker 법, modified Daubenmire 법, modified Point-line intercept transect 법)을 적용하였을 때 군집의 구조 및 다양성 양상이어떻게 다르게 나타나는지 실험적으로 살펴보았다. 연구 결과로 산출한 다양도 profile에 따르면, modified Whittaker 법으로 조사하였을 때 지역에 상관없이 종풍부도가 가장 높게 나타났으나, 지역에 따라 우점하는 종의 다양도가높은방법이 서로 달랐다. 지역들간 β다양성을 조사한 결과, modified Whittaker 법, modified Daubenmire 법은 다섯지역의식물군집의 구조가 유사함을 시사한 반면, Point-line intercept 법은 소수의 우점종을 공유함을 시사하였다.
Abstract
The species diversity of plant communities is quantitatively measured, and can be affected by plant monitoring methods. This study experimentally compared the structure and diversity of plant communities living in five waterfront park areas in Nak-dong River using three plant survey methods (modified Whittaker, modified Daubenmire, and modified point-line intercept method). According to the diversity profile, the modified Whittaker method produced the highest species richness regardless of the location, but which method makes the highest diversity of dominant species varies depending on the location. The Βeta diversity of the communites calculated from the modified Whittaker and the modified Daubenmire suggested that structures of plant communities in five locations were similar, while the Point-line interception method suggested that a small number of dominant species were shared between communities.
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