• 제목/요약/키워드: Natural habitats

검색결과 535건 처리시간 0.03초

남산도시자연공원내 생물서식공간 조성에 관한 연구 (A Study of Creating a Biotope in Namsan Urban Natural Park)

  • 강현경;이수동
    • 한국환경복원기술학회지
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    • 제9권2호
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    • pp.45-58
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    • 2006
  • This study was aimed to propose the plan of creating a biotope reflecting an ecological education as well as its function as the habitats of amphibian in Namsan Urban Natural Park in Seoul. There were Cheonil mineral spring area which was located on the southern side of Namsan, wetlands which was already created on the east valley(800$m^2$) and a buffer area of the circumference(1,100$m^2$) as the biotope sites. Major fields of this study include a survey of the staus, a basic plan, a master plan; a survey of this site was focused on topography, water system, existing vegetation, wildbird, amphibian, trail; a detailed plan was focused on flow plan, planting plan, facility plan. Existing vegetation was classified into 8 types; Pinus densiflora forest, Pinus densiflora planted area, Prunus sargentii-Quercus spp. forest, Pinus rigida forest, Robinia pseudoacacia forest, artificial green space, wetlands, south beltway. There were Pinus densiflora planted area and Prunus sargentii-Quercus spp. forest as major vegetations of this site. 14 species and 33 individuals of wildbirds appeared, Rana temporaria ornativentris and Hynobius leechi were investigated in the wetlands.In particular, habitats of amphibian were divided eco-zone, buffer-zone and restore-zone, and habitats and facilities which would be suitable for the characteristics of each space were planned. As a result, environment elements of good habitats including spawn wetlands of amphibian, harbor of amphibian, water plant of wetland, wild shrubs forest, ecological landscape forest, wetland observation trail, fence of wetland protection and ramp by pebble and log were created at the site. The amphibian biotope of Namsan is rated high as an important space for conserving biodiversity. Accordingly, continuous monitoring of this biotope as a urban habitat is required as the environment changes.

춘천지역의 참취 및 삼지구엽초의 자생지 식생 및 환경특성 (Vegetation and Environment in Natural Habitats of Aster scaber and Epimedium koreanum around Chunchon)

  • 박병재
    • 한국자원식물학회지
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    • 제10권4호
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    • pp.422-427
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    • 1997
  • 유용자원식물의 자생지 재배기술의 확립을 위한 기초자료를 얻고저 참취와 삼지구엽초의 자생지 식생 및 환경(생태 및 토양화학성분) 조사를 실시한 결과는 다음과 같다. 1. 참취자생지인 춘천 A. 연엽산 A 그리고 연엽산 B에서의 종수는 20, 26, 25종이었고 삼지구엽초 자생지인 춘천 B, 북방면 그리고 대룡산에서는 15, 32, 26종이었다. 참취 자생지의 우점종은 춘천 A, 연엽산 A, 연엽산 B에서 맑은대쑥, 애기나리, 실새풀 등이었으며 삼지구엽초의 자생지인 춘천 B, 북방면, 대룡산에서는 고사리, 맑은대쑥, 애기나리 등이 우점하였다. 2. 자생지의 토양산도는 4.5-5.3 범위였으며 유기물 함량은 1.59(춘천A)$\sim$5.5(연엽산 B)이었다. 암모니아태 질소 및 질산태 질소함량은 참취 자생지와 삼지구엽초 자생지 토양에서 평균 각각 0.0043mg/kg, 0.0025mg/kg이었다. 3. 자생지 토양의 $NH_4-N$의 성분은 참취의 자생지의 토양성분이 삼지구엽초의 자생지 토양성분보다 약간 높은 수치를 보였다. 그밖의 성분의 차이는 크게 나타나지 않았다.

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한국에 자생하는 달래속 4종의 고도별 분포 특성 (Distribution Characteristics of the Four Species of Genus Allium at Different Altitudes in South Korea)

  • 김경민;김창길;오중열
    • 한국농림기상학회지
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    • 제11권4호
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    • pp.252-255
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    • 2009
  • 한국에 자생하는 Allium속 식물 중에서 개발가치가 있는 산달래, 달래, 야생부추 및 산파를 대상으로 표고 및 지역별 자생지의 특성을 조사하여 육종 및 재배의 기초자료를 얻고자 수행하였다. 산달래와 달래는 모두 300m 이하의 지대에 주로 자생하고, 그 한계는 산달래는 1,000m, 달래는 800m였다. 야생부추는 100m 이하의 저지대에서부터 1,000m 이상의 고지대에 이르기까지 보다 광범위하게 자생하였고, 산파는 900m 이상의 고지대에서만 자생하였다. 산달래가 달래보다 넓고 광범위하게 자생하였고, 자생지의 수도 산달래가 달래에 비하여 많았다. 산달래는 경기도, 강원도, 전라도와 경상도 지역에서, 달래는 충청도와 제주지역에서 비교적 많이 자생하였다. 산달래는 내륙지방이나 해안지방에서도 자생하나, 달래는 해안지방보다는 내륙지역에 주로 자생하였다.

Effects of habitat conditions in created wetlands on sustaining wintering waterfowl in riverine plains, Nakdong River, South Korea

  • Choi, Jong-Yun;Jang, Ji-Deok;Jeong, Kwang-Seuk;Joo, Gea-Jae
    • Journal of Ecology and Environment
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    • 제38권3호
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    • pp.343-352
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    • 2015
  • The landscape setting of a habitat strongly influences the distribution, abundance, and species composition of waterfowl. Thus, habitat assessment is very important to understand the habitat characteristics that sustain waterfowl assemblages. In this study, we hypothesized that the excessive use of artificial materials when new wetlands are constructed negatively influences wintering waterfowl. To test this hypothesis, we measured environmental factors, assessed habitat, and investigated waterfowl at 13 artificial wetlands in the Nakdong River Basin. There were greater numbers of waterfowl species and individuals in artificial wetlands with high habitat assessment scores. In contrast, environmental factors did not affect waterfowl distribution. In particular, features of natural habitats, such as macrophytes and sandbars, and the surrounding land-use patterns were important factors for sustaining waterfowl assemblages in each created wetland. Our results show that promoting naturalness in wetlands and surrounding areas would increase the species diversity and abundance of waterfowl. Further, complex habitats, such as wetlands and some terrestrial habitats, support both aquatic and terrestrial species because mixed habitats feature a larger array of food sources than more limited habitats do.

연복초(Adoxa moschatellina L.)의 분포와 자생지 입지환경 -강원도를 중심으로- (Distribution and Habitats Environmental Characteristics of Adoxa moschatellina L. -Focus on Prov. Gangwon-do-)

  • 옥길환;천경식;장진환;유기억
    • 한국자원식물학회지
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    • 제25권2호
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    • pp.246-256
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    • 2012
  • 강원도 연복초 자생지 입지환경을 알아보기 위하여 분포지를 밝히고 9개 지역의 22 지점을 대상으로 환경요인, 식생 및 토양분석을 실시하였다. 연복초는 강원도 동해시, 속초시, 고성군과 양구군을 제외한 14개 시군의 총 44개 지역에 분포하는 것으로 확인되었다. 자생지는 해발 99-1,084 m의 범위에 위치하였으며, 경사는 $0-25^{\circ}$로 비교적 완만하였다. 식생조사 결과 방형구 내에 출현한 관속식물은 총 215분류군이었다. 초본층의 중요치는 연복초가 32.8%로 가장 높았으며 다음으로는 벌깨덩굴(7.5%), 미나리냉이(5.1%), 미치광이풀(3.8%), 현호색(3.3%) 등의 순으로 나타나 이 종류들이 연복초와 친화도가 높은 것으로 생각된다. 식생의 양적지수를 산출한 결과 종다양도는 0.4870-0.9848, 균등도와 우점도는 각각 0.4525-0.7601과 0.1335-0.4191의 범위로 나타났다. 각 방형구내에 조사된 종류들의 중요치에 기초한 군집분석 결과에서는 우점종의 상이성에 의해 유집되는 경향을 보였다. 토양 분석결과 포장용수량, pH 그리고 유기물함량은 각각 4.29-38.45%, 4.61-5.98, 2.44-20.21%의 범위로 조사되었다.

동강할미꽃 자생지의 환경 및 생태적 특성 (Environmental and Ecological Characteristics of Pulsatilla tongkangensis Habitats)

  • 유기억;천경식;장수길
    • 한국환경생태학회지
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    • 제23권5호
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    • pp.439-446
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    • 2009
  • 동강할미꽃 자생지(백운산, 마하리, 귤암리와 덕항산)의 환경특성을 파악하기 위하여 환경요인, 식생 및 토양분석을 실시하였다. 동강할미꽃 자생지는 해발 220-772 m에 위치하고, 경사는 $41-85^{\circ}$로 다양하였으며, 주로 북서사면에 분포하였다. 식생분석결과 10개 방형구내에서 조사된 분류군은 총 27종류였다. 중요치는 동강할미꽃이 9.65%였으며, 산거울(28.93%), 돌양지꽃(16.55%), 돌단풍(7.09%), 기름나물과 그령(4.55%), 큰네잎갈퀴(3.90%) 등 6종류는 중요치가 높게 나타나 이 분류군들은 동강할미꽃과 친화도가 높은 것으로 생각된다. 종다양도는 평균 0.75이었고 우점도와 균등도는 각각 0.24와 0.85로 나타났다. 토양의 포장용수량은 평균 19.05%이었으며, 유기물 함량은 10.51%로 나타났고, pH는 7.43으로 자생지간에 비슷하게 나타났다.

Using habitat suitability model for the wild boar (Sus scrofa Linnaeus) to select wildlife passage sites in extensively disturbed temperate forests

  • Rho, Paikho
    • Journal of Ecology and Environment
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    • 제38권2호
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    • pp.163-173
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    • 2015
  • The occurrence of wild boars (Sus scrofa Linnaeus) and reports of wildlife-vehicle conflicts (i.e., road-kill) involving them have increased in natural forest regions of Korea. In the past few decades, many wildlife passages have been constructed to reduce vehicle collisions involving wildlife species. However, few studies have assessed the habitat suitability of target wildlife species when locating the construction sites of wildlife passages. Target species rarely use wildlife passages if built in an inappropriate location. Therefore, a quantitative habitat model is required to find suitable sites for wildlife passages that can connect the fragmented forest patches of wildlife habitats in Korea. In this study, the wild boar was selected as the target species, and six environmental variables (percentage of Quercus forest, slope aspect, distance to roads, water accessibility, forest stand age and density) were measured. The habitat model for wild boars was developed with a Delphi survey, and habitat suitability maps were delineated for the provinces of Gangwon-do and Jeollanam-do. In this study, 298 and 64 boars were observed in Gangwon-do and Jeollanam-do, respectively. Observations of wild boars derived from the second nationwide natural environmental survey were used to evaluate the habitat model. Habitat suitability maps that superimposed existing road networks suggested that wild boar habitats were severely fragmented in both provinces, particularly in Gangwon-do. To connect the fragmented habitats and prevent wildlife-vehicle collisions, this study proposes 11 and 5 wildlife passage sites in Gangwon-do and Jeollanam-do, respectively.

Traditional Agricultural Landscape as ail Important Model of Ecological Restoration in Japan

  • Toshihiko, Nakamura
    • The Korean Journal of Ecology
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    • 제25권1호
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    • pp.19-24
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    • 2002
  • The traditional Japanese agricultural landscape, In which a set of varied land-use patches functions as a sustainable ecosystem landscape unit, not only provides the local people tilth a stable food supply, but also offers a variety of habitats to many species of wildlife. Therefore, remaining natural habitats including those in the traditional agricultural landscape should be maintained whenever possible. In addition, restoration work should be implemented in areas where the natural habitat has been destroyed or severely degraded by human activities. This basic approach to the natural environment is a combination of maintenance and restoration. Types of maintenance and restoration can be classified into three categories according to the countermeasures employed: preservation, conservation and protection types of maintenance, and improvement, reconstruction and creation types of restoration. Four steps are proposed for ecological restoration and maintenance of a target area: exploration, diagnosis, prescription and care. In this process, a model for approaching the goal is important. One of the most important models should center on the traditional agricultural landscape involving a sustainable farming ecosystem. It is necessary to protect traditional landscapes and ecosystems from the degrading impact of urbanization and industrialization, as well as to enhance efforts at restoration.

멸종 위기종 한국사향노루의 서식지 조사 (Investigation of natural habitats for Korean Musk deer (Moschus Moschiferus))

  • 김종택;김건중;김현철
    • 한국동물위생학회지
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    • 제30권3호
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    • pp.459-466
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    • 2007
  • The Korean Musk deer (Moschus Moschiferus) is endangered due to heavy hunting and Massive destructions of natural habitat. They are included in CITES appendix II. In addition they are designated as a precious natural product in 1968 and listed as endangered species by the Government and Cultural Heritage Administration. At present, the number of musk deer in Korea is smaller than minimum viable population. Without increment of the population size, natural restoration is impossible. It is necessary to develop the artificial growth and re-enforcement methods in order to conservation Korean musk deer. Furthermore, It is necessary to ensure that we have an adequate individual group for artificial growth and re-enforcement. To ensure that we have an adequate individual group, it is necessary to know ecology of musk deer. This study is conducted to confirm and investigate of habitat of musk deer in order to capture individual musk deer. we investigated, confirmed habitats, found traces and captured using trap and decoy. Captured musk deer is male and 5.5 kg, this have canine tooth of 1.5cm, is estimated 15 months old. After capture, we measured each parts of body and tested to research of parasite infection. Strongyloides papillous was founded in the feces. It is essential to get healthy individual and establish of artificial growth technique.

안정동위원소 분석을 이용한 이식된 지네지누아리의 생태학적 기능 평가 (Isotopic Assessment of Ecological Function of a Transplanted Macroalgal Habitat (Grateloupia asiatica))

  • 전찬길;김형근;박현제
    • 한국환경과학회지
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    • 제29권11호
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    • pp.1089-1098
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    • 2020
  • To assess the trophic function of an artificial macroalgal habitat, we compared the stable carbon and nitrogen isotope ratios of two amphipods (Caprella sp. and Ampithoe sp.) and their potential food sources in a transplanted macroalgal habitat (Grateloupia asiatica) with those in a natural habitat. There were no significant differences in the isotopic values of both consumers and their potential food sources between the transplanted and natural habitats. Such isotopic similarities between the two sites indicate a comparable resource consumer relationship. Additionally, our results showed similar isotopic niche areas and high dietary overlap (>65%) of the two amphipods between the transplanted and natural sites, suggesting that the transplanted habitat plays ecological roles similar to the natural habitat. Overall, isotopic assessment can provide information on the trophic function of diverse transplanted macroalgal habitats and improve post-monitoring efforts in the management of artificial ecosystems.