• 한국환경복원기술학회지
• /
• 제7권3호
• /
• pp.35-47
• /
• 2004

In order to study changes in vegetation pursuant to rooftop revegetation plantation methods, plantation methods for rooftop revegetation were divided into two types through an analysis of recent trends. Then, Planted plants and invasive plants on sites where the planting methods were introduced were monitored. Planting methods were divided into mono-layer meadow cover type and multi-layer planting cover type. They showed some differences in terms of the availability of wetland, the structure of vegetation layers, the planted species, and the material of mulching. According to the results of monitoring the two sample sites for different plantation methods, the number of invasive plants was higher in multi-layer planting cover type and the ratio of naturalized plants was higher by 30% in average in mono-layer meadow cover type. The main reason for such a result is that the natural soil used in the multi-layer planting cover type likely contained some seeds. Moreover, it's harder for invasive plant seeds to germinate in volcanic rocks than in natural soil. Also, it is attributable to wetlands available in multi-layer planting cover type and diverse living environments created by multi-layer planting. The reason of the ratio of naturalized plants being higher by at least 10% in mono-layer meadow cover type is the character of naturalized plants being stronger in unfavorable conditions than nature plants are. Accordingly, the germination rate in the volcanic rock mulching has likely contributed in raising the introduction and germination of naturalized plants. The results showed that multi-layer planting cover type using wetland creation and nature soil can increase the number of invasive plants and lower the ratio of naturalized plants. However, since seeds contained in the natural soil can affect the growth of planted plants, this needs to be clarified, It was judged that mono-layer meadow cover type may affect more greatly on the germination and growth of invasive plants than on those of planted plants, Its potential adoption in highly urbanized areas was examined. By complementing with the mutual benefits of each plantation method, it appeared possible to shift to a rooftop revegetation system suitable to the site.

• 생태와환경
• /
• 제54권4호
• /
• pp.327-333
• /
• 2021

외래식물이 새로운 환경에 성공적으로 정착할 수 있는 이유를 설명하는 주된 두 개의 가설은, 외래식물이 새로 정착할 지역 군집 구성원들과 충분히 달라 경쟁을 피할 수 있기 때문이라는 것, 그리고 이미 적응하고 있는 그 지역 군집의 구성원과 유사하여 새로운 환경에 잘 적응할 수 있기 때문이라는 것이다. 본 연구는 낙동강변에 인위적으로 조성된 습지공원지역을 대상으로 외래(귀화) 초본식물과 자생 초본식물의 기능 형질을 조사하여 상호 비교 분석하여 앞의 두 가설 중 어느 가설이 맞는지 확인하고자 하였다. 식물 잎 형질 중, 잎 면적, 잎 면적비, 잎 두께, 잎 건조 중량, 잎 질소량, 잎 탄소량을 이용하여 분석한 결과, 외래(귀화)식물과 자생식물이 서로 구분되었고, 이는 외래(귀화)식물이 자생식물보다 잎 질소량이 높기 때문인 것으로 생각되었다. 높은 잎 질소량은 높은 광합성률과 연관되고 이는 효과적인 자원 이용 및 빠른 생장과 관련있음을 고려할 때, 본 연구지역에 정착한 외래식물 역시 이러한 기능적 특징을 가지고 있는 것으로 생각되었다. 본 연구 결과는 앞의 두 가설 중 외래식물과 자생식물의 기능적 차이가 외래식물 정착 성공을 결정한다는 가설을 지지하는 것으로 보인다.

• 한국환경복원기술학회지
• /
• 제17권3호
• /
• pp.13-33
• /
• 2014

The purpose of this study is to offer the raw data for establishing the management and restoration plan by objective surveying and analysing the flora distributed in Seoak District, Gyeongju National Park, Korea. The flora summarized as 411 taxa including 92 families, 285 genera, 363 species, 2 subspecies, 41 varieties and 5 forms. The rare plants designated by Korea Forest Service were 2 taxa including Exochorda serratifolia and Potentilla discolor. The Korean endemic plants were 3 taxa including Philadelphus schrenkii, Lespedeza maritima and Weigela subsessilis. The specific plants by floristic region were 16 taxa including Asplenium sarelii, Pyrrosia petiolosa, Vitex negundo var. incisa and so forth. The target plants adaptable to climate change were 2 taxa including Lespedeza maritima and Carpesium macrocephalum, and the plants with approval for delivering oversea were 4 taxa including Exochorda serratifolia, Glycine soja, Lespedeza maritima and Weigela subsessilis. The naturalized plants were 51 taxa including Phytolacca americana, Viola papilionacea, Lamium purpureum and so forth. The invasive alien plants were 3 taxa including Ambrosia artemisiifolia, Aster pilosus and Lactuca scariola. NI(Naturalized Index) was 12.4% of all 411 taxa of surveyed flora in this study and UI(Urbanized Index) was 15.9% of all 321 taxa of naturalized plants in Korea. Potentilla discolor in rare plant, Philadelphus schrenkii in endemic plant and Dictamnus dasycarpus in specific plant were established the conservation plan. Whereas, invasive alien plants such as Ambrosia artemisiifolia, Aster pilosus and Lactuca scariola should be removed as soon as possible. The damaged sites in Seoak District were divided between wildfire area and farmland. To restore a forest fire site, we will have to apply a natural renewal and community planting. In case of farmland, we will have to do ecological planting using native species and constrcut a forest wetland.

• 한국환경복원기술학회지
• /
• 제24권1호
• /
• pp.81-96
• /
• 2021

The purpose of this study was conducted in order to provide the necessary basic data, to establish management solutions and to improve biodiversity by calculating similarity index, urbanization index (UI), and disturbed index (DI) to understand current status of naturalized and invasive alien plants in Eulsukdo, Maekdo and Samnak ecological parks in Busan, South Korea. The numbers of naturalized plants identified in these parks were 76 taxa; 20 families, 53 genera, and 76 species. As a result of the similarity index analysis, the most similarity level (83.0%) was obtained at Eulsukdo and Maekdo parks. The numbers of invasive plants identified in the two parks were 11 taxa; Rumex acetosella L., Sicyos angulatus L., Solanum carolinense L., Ambrosia artemisiifolia L., Ambrosia trifida L., Hypochaeris radicata L., Lactuca serriola L., Solidago altissima L., Symphyotrichum pilosum (Willd.) G.L.Nesom, Paspalum distichum L., and Humulus scandens (Lour.) Merr. Overall, UI and DI were 28.6% and 66.7%, respectively, indicating that the ecosystem disruption was serious.

• 한국조경학회지
• /
• 제38권4호
• /
• pp.96-105
• /
• 2010

본 연구는 창원시 내동천에 분포하는 귀화식물에 대한 연구를 통해 도시하천의 생태적 특성과 귀화식물의 관리방안에 대한 기초자료를 제공하는데 그 목적이 있다. 연구결과는 다음과 같다. 귀화식물의 수는 18과 38속 43종 2변종 등 45분류군으로 요약되었다. 생태계교란야생식물은 애기수영, 돼지풀, 가시박 등 3분류군이었다. 귀화식물의 생활형 분석 결과, 교목 2분류군, 관목 1분류군, 지표식물 3분류군, 반지중식물 7분류군, 지중식물 1분류군, 일년생식물 31분류군으로 나타났다. 내동천의 도시화지수와 귀화율은 16.6%, 25.1%였다. 종단구조별 분석 결과, 귀화식물은 상류 30분류군, 중류 42분류군, 하류 32분류군으로 나타났다. 도시화지수의 경우 상류 11.1%, 중류 15.5%, 하류 11.8%, 귀화율의 경우 상류 21.7%, 중류 33.3%, 하류 37.2%로 분석되었다. 횡단구조별 분석 결과, 귀화식물은 제방 39분류군, 둔치 30분류군, 수변 7분류군으로 나타났다. 도시화지수의 경우 제방 14.4%, 둔치 11.1%, 수변 2.6%였고, 귀화율의 경우 제방 30.5%, 둔치 30.6%, 수변 20.0%로 분석되었다. 귀화식물 관리방안의 경우 애기수영, 돼지풀, 가시박은 생태계를 교란시키고, 자생식물 생육에 악영향을 미치기 때문에 효율적인 방제가 필요하다.

• 한국환경복원기술학회지
• /
• 제13권5호
• /
• pp.12-27
• /
• 2010

The purpose of this study is carried out to present the raw data for restoring and maintaining an urban stream by objective surveying and analysing about flora in Changwon stream and Nam stream, Changwon-si, Gyeongsangnam-do, Korea. The results are as follows. The numbers of vascular plants were summarized as 248 taxa; 71 families, 184 genera, 220 species, 26 varieties and 2 forma. The numbers of vascular plants by streams were 202 taxa in Changwon stream and 206 taxa in Nam stream. The endemic plant was Salix pseudolasiogyne. The rare plants designated by Korea Foret Service were 2 taxa; Aristolochia contorta and Koelreuteria paniculata. The specific plants by floristic region were 12 taxa; Aphananthe aspera, Artemisia selengensis, Indigofera pseudotinctoria and so forth. The naturalized plants were 37 taxa; Ailanthus altissima, Amaranthus patulus, Amorpha fruticosa and so forth. The invasive alien plants designated by Ministry of Environment were 4 taxa; Ambrosia artemisiifolia var. elatior, Aster pilosus, Rumex acetocella and Solanum carolinense. The UI (Urbanized Index) and NI (Naturalized Index) were 13.6% and 18.3% in Changwon stream and 13.6% and 17.9% in Nam stream.

• 한국환경복원기술학회지
• /
• 제26권6호
• /
• pp.165-177
• /
• 2023

Field surveys were conducted at a total of 50 locations targeting naturalized plants on Ulleung-do. A total of 109 taxa were identified, including the list of naturalized plants in the preceding literature. The naturalized plants of Ulleung-do had a high proportion of Asteraceae, which appeared frequently in the habitat of the ruderal type. There were no naturalized plants that settled only on Ulleung-do, and all naturalized plants found on Ulleung-do first settled on the Korean Peninsula. This was proved by the high rates of epecophyten (90.8%) and the introduction period 2nd (70.6%). On the other hand, among ecosystem-disturbing species that have a great influence in the inland of the Korean Peninsula, Hypochaeris radicata and Rumex acetosella appeared in a limited area in Ulleung-do. On the other hand, Lapsana communis appeared in high density along the forest edge, requiring management of naturalized plants different from those in the Korean Peninsula. Naturalized plants on Ulleung-do showed a rapid increase in the 1990s after increased academic research, coastal road development, and other development projects. This highlights the necessity for continuous research on the pattern of naturalized plant occurrence after the completion of the Ulleung Airport, which is currently under construction.

• 한국자원식물학회지
• /
• 제24권5호
• /
• pp.489-498
• /
• 2011

본 조사는 2006년 3월부터 2008년 11월까지 전라남도 동부지역 7개 시 군 14개 지역의 귀화식물과 도시화지수를 분석하였다. 귀화식물은 총 22과 75속 118종 5변종 123종류가 조사되었다. 조사지역별로는 순천시 시가지가 83종으로 가장 많았고, 여수시 산업단지 66종, 여수시 시가지와 고흥군 도로변이 각각 52종이었다. 낮게 나타난 지역은 순천시 쓰레기매립장과 장흥군 농공단지가 각각 21종, 구례군 지리산국립공원 구례지역이 27종이었다. 도시화지수는 순천시가 30.31%로 가장 높았고, 구례군이 18.12%로 가장 낮았다. 과별 출현 종류는 국화과 37종류(30.1%)로 가장 많았고, 벼과 17종(13.8%), 콩과 14종(11.4%), 십자화과 8종(6.5%), 마디풀과 7종(5.7%), 메꽃과 5종(4.1%) 순이었다. 주요 귀화식물군락은 아까시나무군락, 족제비싸리군락, 원추천인국군락, 털물참새피군락, 서양민들레군락, 미국자리 공군락, 양미역취군락, 소리쟁이군락, 개망초군락, 망초군락, 달맞이꽃군락, 미국가막사리군락, 기생초군락, 돼지풀군락, 만수국아재비군락, 울산도깨비바늘군락, 노랑코스모스군락, 애기땅빈대군락, 미국개기장군락, 비짜루국화군락 등 총 20개 군락이 확인되었다. 생태계 위해 귀화식물은 돼지풀, 단풍잎돼지풀, 서양등골나물, 털물참새피, 물참새피 등 5종이었다. 생육지별 특성에 따라 시 군 읍 지역, 국립공원지역, 농공단지 지역, 강 및 하천지역, 쓰레기매립장 지역, 항만 및 산업단지 지역 등 6개 지역으로 구분하였으며, 각 분포지역의 생태적 특성을 비교한 후 관리방안을 제시하였다.

• 한국환경복원기술학회지
• /
• 제21권5호
• /
• pp.61-79
• /
• 2018

The purpose of this study is to investigate the flora of Sohyeoncheon which is planned for ecological restoration and river maintenance from upstream to downstream, and also to collect the ecological data to cope with the change of the ecosystem of Sohyeoncheon. The numbers of vascular plants were summarized as 336 taxa including 82 families, 233 genera, 298 species, 1 subspecies, 33 varieties and 4 forms. The rare plants were 3 taxa including Aristolochia contorta Bunge, Prunus yedoensis Matsum.(planting) and Koelreuteria paniculata Laxmann. The Korean endemic plants were 4 taxa including Populus tomentiglandulosa T.B.Lee(planting), Lespedeza maritima Nakai, Forsythia koreana (Rehder) Nakai(planting) and Weigela subsessilis (Nakai) L.H.Bailey. The specific plants by floristic region were 15 taxa including 1 taxon of grade V, grade IV and grade II each, 4 taxa of grade III and 8 taxa of grade I. The naturalized plants were 60 taxa and the invasive alien plants were 3 taxa. The results of analysis by vertical structures showed that naturalized plants included 31 taxa of upstream, 53 taxa of midstream and 38 taxa of downstream. An analysis of crossing structures showed that 2 taxa of water channel, 3 taxa of low waterside, 41 taxa of high waterside and 48 taxa of bank.

• 한국환경복원기술학회지
• /
• 제21권4호
• /
• pp.25-42
• /
• 2018

The purpose of this study is to present the basic data for management of ecologically restored stream by surveying and analysing the vascular plants distributed in Chunghyocheon stream, Gyeongju-si. The survey of vascular plants in this site was conducted before and after restoration. The number of vascular plants were summarized as 276 taxa including 68 families, 188 genera, 242 species, 1 subspecies, 29 varieties and 4 forms. The rare plants were 2 taxa including Prunus yedoensis Matsum. and Iris ensata var. spontanea (Makino) Nakai, and the Korean endemic plant was Lespedeza maritima Nakai. The specific plants by floristic region were 13 taxa including 1 taxa of grade V, 3 taxa of grade III, 1 taxa of grade II and 8 taxa of grade I. The naturalized plants were 62 taxa including Persicaria orientalis (L.) Spach, Lepidium virginicum L., Poa compressa L. and so forth. The invasive alien plants were 3 taxa including Ambrosia artemisiifolia L., Aster pilosus Willd. and Lactuca scariola L.. The hydrophytes were 34 taxa including 26 taxa of emergent plant, 1 taxa of floating-leaved plant, 2 taxa of free-floating plant and 5 taxa of submerged plant.