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NTIS 바로가기생태와 환경 = Korean journal of ecology and environment, v.50 no.2, 2017년, pp.195 - 206
임정철 (국립환경과학원 국립습지센터) , 정현기 (국립환경과학원 한강물환경연구소) , 이철호 (동의대학교) , 최병기 (동의대학교)
We described a spatial distribution pattern and floral diversity on the Paspalum distichum community occurring at the ecological parks of Hwamyeong, Daejeo, Samnak, and Maekdo in the Nakdong river estuary. A total distribution area of P. distichum community was
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핵심어 | 질문 | 논문에서 추출한 답변 |
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물참새피가 어느 지역까지 그 분포가 확장되었는가? | 또한 다양한 초식동물의 중요 먹이원이며, 소나 말을 포함한 가축 들의 사료용 작물로도 유용하게 활용되어 왔다(Middleton, 1998; DiTomaso and Healy, 2003). 그러나 인위적 도입에 의해 자생지를 벗어나 그 분포가 크게 확장되었으며, 도입 목적과 관계없이 주변 환경으로 탈출, 야생화되면서 유럽 전역과 동부 지중해, 북부 및 열대의 아프리카, 온대 및 열대의 아시아, 대서양, 인도양, 태평양의 섬들에 이르기까지 전 세계적으로 확산되었으며, 다양한 피해를 발생시키고 있는 것으로 보고되고 있다(Weber, 2003). 특히 남부 유럽과 오스트레일리아에서는 자연지역 내에까지 침투하여 생태계 교란을 유발하는 일차식생귀화종(agrionphytes)으로 알려져 있다(Campbell, 1999; Aguiar et al. | |
물참새피군락 분포에 영향을 주는 요인(긍정적, 부정적, 독립젹)은 어떤것들이 파악되었는가? | 대부분의 군락이 피도 4 또는 5의 단순우점군락을 형성하고 있었으며, 수변부 식생경관과 환경에 있어 다양한 변화를 가져온 것으로 확인되었다. 연구지역 내 물참새피군락 분포에 영향을 주는 요인들로 긍정적 요인(종 출현, 식생교란, 부영양화, 식토, 낚시행위)과 부정적 요인(물 흐름, 범람, 키 큰 식생, 수심, 사질토, 초식동물, 인위적 관리) 그리고 독립적 요인(염도, 토심, 경작, 생태관광)들이 파악되었다. 물참새피군락 내 출현식물의 다양성은 총 73 분류군이었으며, 다수의 자생식물이 물참새피와 경쟁관계를 형성하고 있는 것으로 확인되었다. | |
물참새피는 어디에 서식하는가? | 벼과 식물인 물참새피 (Paspalum distichum L.)는 정수 습지의 수변부 및 수면에 서식하는 다년생 초본이다. 자생지는 열대 아메리카지역으로 원산지에서는 하천의 제방 부, 수로, 해변, 습지대 등에 서식하며, 지반의 침식을 방지 하고 고유 생태계의 구조와 기능을 유지하는 데 중요한 식생 요소로 고려된다(DiTomaso and Healy, 2003). |
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