Journal of the Korean Institute of Landscape Architecture (한국조경학회지)

The Korean Institute of Landscape Architecture (한국조경학회)
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Management Plan and Analysis of the Characteristics of Naturalized Plants by Ecological Restoration of Gaeumjeong Stream, Changwon-si

창원시 가음정천의 생태복원에 따른 귀화식물 특성 분석과 관리방안

  • You, Ju-Han (Dept. of Landscape Architecture, Dongguk University-Gyeongju) ;
  • Park, Kyung-Hun (Dept. of Environmental Engineering, Changwon National University) ;
  • Choi, Jin-Hwan (Dept. of Environmental Engineering, Graduate School, Changwon National University)
  • 유주한 (동국대학교 경주캠퍼스 조경학과) ;
  • 박경훈 (창원대학교 환경공학과) ;
  • 최진환 (창원대학교 대학원 환경공학과)
  • Received : 2014.04.21
  • Accepted : 2014.08.04
  • Published : 2014.08.31
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Abstract

This study was carried out to present raw data on managing the restored urban stream by studying the naturalized plants distributed in Gaeumjeong Stream, Changwon-si, Gyeongsangnam-do, Korea. The results were as follows. The numbers of naturalized plants were summarized as 45 taxa including 17 families, 36 genera, 43 species and 2 varieties. The invasive alien plants were 2 taxa including Ambrosia artemisiifolia and Lactuca sativa. The following summarizes the attributes of the naturalized plants. Most of the plants commonly originated from Europe and North America. The 5 naturalized degree that was widely distributed and had many individual was the most common. Until 1921, after the opening of 1 period was the most common in the introduced period. Section 12 had the highest NI at 41.9%, and the lowest, at 20.5%, in sections 9 and 19 were analyzed. Section 1 had the highest UI at 6.2%, whereas, the lowest, at 2.5%, was calculated in sections 19 and 20. Section 2 showed the highest DI at 16.7%. The first results of the analysis of the causes for the invasion of naturalized plants on the riverside and waterways, and physical factors and maintenance are directly affected. Second, sewage, muddy water and sediment deposits this naturalized plant caused by a chemical factor. Third, it is thought that invasive alien plants are irregular as it happens in biological factor. The proposed management plan naturalized plants, the first, disturbance caused by species management is a young object is removed immediately before flowering scape to eliminate or suppress the propagation of physical methods will be needed. Second, the fact that the national spread of native plant species and planting management does not provide space for the growth is very important. Third, agricultural land is disturbed by agricultural practices by interfering with the action of naturalized plants because the source of the river should be prohibited in agriculture. In the future, if we studied the naturalized plants distributed in restored streams located in Changwon-si, the characteristics of change in the ecosystem impact is expected to be beneficial.

본 연구는 경상남도 창원시의 가음정천에 분포하는 귀화식물을 연구함으로써 복원된 도시하천을 관리하기 위한 기초 자료를 제공하기 위해 수행하였다. 연구결과를 요약하면 다음과 같다. 귀화식물은 17과 36속 43종 2변종 등 총 45분류군으로 요약되었으며, 생태계교란야생식물은 돼지풀과 가시상추 등 2분류군으로 나타났다. 귀화식물의 속성정보를 요약하면, 원산지의 경우, 유럽과 북아메리카가 가장 많았다. 광범위하게 분포하고 개체수가 많은 5등급이 가장 많았으며, 이입시기의 경우, 개항 이후~1921년까지인 1기의 귀화식물이 가장 많았다. 12구간의 경우 귀화율이 41.9%로 가장 높았으며, 9구간 및 19구간은 20.5%로 가장 낮았다. 도시화지수의 경우, 1구간이 가장 높은 6.2%인 반면, 19구간 및 20구간이 가장 낮은 2.5%로 나타났다. 교란율의 경우, 2구간이 가장 높은 16.7%로 나타났다. 귀화식물의 침입원인에 대한 분석 결과, 첫 번째, 물리적 요인은 둔치 및 수로 정비가 직접적으로 영향을 미쳤다고 생각된다. 두 번째, 화학적 요인은 오수 및 탁수 유입, 토사퇴적에 의한 것으로 생각된다. 세 번째, 생물학적 요인은 생태계교란야생식물의 불규칙적인 발생으로 생각되나, 복원과의 상관성을 낮다고 판단된다. 귀화식물의 관리방안을 제시하면, 첫 번째, 교란종 관리는 어린 개체가 발생하는 즉시 제거하거나, 개화 전 화경을 제거하여 번식을 억제하는 물리적 방법이 필요할 것이다. 두 번째, 전국 확산종 관리는 자생식물을 식재하여 생육공간을 제공하지 않는 것이 중요하다. 세 번째, 농경지는 농경행위에 의한 교란과 간섭에 의해 귀화식물의 발생원으로 작용하기 때문에, 하천 내 농경행위를 금지해야 할 것이다. 향후, 창원시의 모든 복원하천에 분포하는 귀화식물을 연구한다면 생태계 변화 특성에 미치는 영향을 예측하는데 유리할 것이다.

Keywords

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