• 제목/요약/키워드: Coniferous species

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멸종위기 고산지역 침엽수종 보전가치 평가 (Preservation Value of Endangered Alpine Coniferous Species)

  • 이상현;이동형;변준기
    • 한국산림과학회지
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    • 제112권3호
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    • pp.322-330
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    • 2023
  • 최근 기후변화의 심화가 지속되는 가운데 아고산 침엽수종의 쇠퇴 현상이 뚜렷하게 나타나고 있다. 이에 산림청에서는 고산지역 침엽수 7종에 대해 보전 대책을 수립하고 쇠퇴원인을 파악하고 보전전략 수립방안에 대한 연구가 진행되고 있다. 본 연구는 멸종위기 고산지역 침엽수종 보전전략 수립방안 중 멸종위기 고산지역 침엽수종에 대한 인식과 보전가치 평가를 통해 멸종위기 침엽수종에 대한 보전의 필요성과 가치를 알리기 위한 객관적인 자료를 제시하고자 경제적 가치평가방법인 조건부가치법(CVM, contingent valuation method)을 적용하였다. 멸종위기 침엽수종에 대한 인식과 보전가치 평가를 하기 위해 성별, 연령, 거주지에 대한 인구비례 할당을 통해 2,151명에 대한 설문조사의 결과를 분석하였다. 그 결과, 멸종위기 고산지역 침엽수종 1가구당 보전가치는 49,181원으로 추정되었다.

Development of the forest type classification technique for the mixed forest with coniferous and broad-leaved species using the high resolution satellite data

  • Sasakawa, Hiroshi;Tsuyuki, Satoshi
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.467-469
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    • 2003
  • This research aimed to develop forest type classification technique for the mixed forest with coniferous and broad-leaved species using the high resolution satellite data. QuickBird data was used as satellite data. The method of this research was to extract satellite data for every single tree crown using image segmentation technique, then to evaluate the accuracy of classification by changing grouping criteria such as tree species, families, coniferous or broad-leaved species, and timber prices. As a result, the classification of tree species and families level was inaccurate, on the other hand, coniferous or broad-leaved species and timber price level was high accurate.

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Antioxidant Characteristics in the Leaves of 14 Coniferous Trees under Field Conditions

  • Han, Sim-Hee;Lee, Jae-Cheon;Lee, Wi Young;Park, YoungKi;Oh, Chang-Young
    • 한국산림과학회지
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    • 제95권2호
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    • pp.209-215
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    • 2006
  • We investigated antioxidant capacity in leaves of 14 coniferous trees under field conditions. We focused on understanding the species characteristics on antioxidant systems and screening the coniferous tree species with the best antioxidant systems using their characteristics. The antioxidant capacity of 14 coniferous trees was divided into three groups. First group was Thuja orientalis and Chamaecyparis obtusa and those species had the highest content of ${\beta}$-carotene and xanthophyll. Second group, C. obtusa and Juniperus chinensis, used antioxidant enzymes to mitigate stress. C. obtusa represented high activity at superoxide dismutase (SOD), glutathione reductase (GR), and peroxidase (POD), and J. chinensis exhibited high activity at SOD, POD, catalase (CAT). Third group employed antioxidant such as ascorbic acid and ${\alpha}$-tocopherol. The antioxidant content of T. orientalis was the highest while that of Pinus parviflora and C. obtusa were the lowest. Few species belonged in three groups simultaneously, and most species belonged in at least one or two groups. In summary, we proposed that C. obtusa and T. orientalis had the highest antioxidant capacity while P. parviflora and P. desiflora for. multicalus had the lowest antioxidant capacity.

남산 지역 조류 군집의 서식 현황과 보호 및 관리방안 (Status, Protection, and Management of Bird Community in Mt. Nam Area)

  • 이우신;조기현;임신재
    • The Korean Journal of Ecology
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    • 제21권5_3호
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    • pp.665-673
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    • 1998
  • This study was conducted to clarified the relationship between bird community and forest structure and present the counterplan for protection and management of bird community from February 1993 to July 1995 at deciduous and coniferous forest within Mt. Nam area, Seoul, Korea. DBH distribution has not significant differences in each study site. Deciduous forest had more foliage coverage in all layers than coniferous forest. Total 41 species of birds, which were 16 species of resident, 14 species of summer visitor, 4 species of winter visitor, and 7 species of passage migrant were recrded in two study sites. Leaf use rate of birds was increased the increase of coverage. The number of breeding species and pairs, breeding density, and diversity index were greater in deciduous forest than coniferous forest. The number of species and pairs on bush-nesting and foraging guild were greater than other guilds. And the nuber of species and pairs on hole nesting guild were the fewest in nesting guild. Use rate of artificial nests for improvement of habitat quality was greater in coniferous forest than deciduous forest. Maintenance of bush layer, increase of coverage and leaf layer diversity, supply of artificial nests, management of large trees, and control of natural enemy were necessary for protection and management of bird community in Mt. nam area.

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홍성 인접 사문암 지역 내 토양성분차이

  • 민일식;송석환
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2002년도 추계학술발표회
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    • pp.200-202
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    • 2002
  • This study was for comparisons of transitional element concentrations from the two different soil, serpentinite(SP) and granite area(GR), Kwangcheon and Hongseong area. Soils were collected by soil depths (10, 20 and 30cm) from the sites selected In the plant species(coniferous and deciduous species). In the soils, the SP was high in the Cr, Mn, Fe, Co, Ni and Zn concentrations, while the GR was high in the Cu, As, Sc and V. With the soil depths, the elements had high solubility, such as Cr, Co and Ni concentrations, were high in the SP, while the other elements were not clear. For the both species, the SP was high in the root and bolebark, while in the GR, not clear. Coniferous species in the same soil types, was higher than the deciduous In most elements. The more with increasing ages, the more with element accumulation in most plant parts except leaves. Comparisons between the soils and plant species, in the case of the element contents within the soils, the plant species in the same sites was similar trend. especially, clear in the SP

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서울대 광양연습림내 토양 미소 절지동물에 관한 연구 - 3. 날개응애와 식생과의 관계 (Soil Microarthropods at the Kwangyang Experiment (3. Relationship between Soil Oribatid Mite and Vegetation))

  • Kwak, Joon-Soon;Kil, Bong-Seop
    • The Korean Journal of Ecology
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    • 제12권3호
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    • pp.191-202
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    • 1989
  • This study was carried out to investigate the relationship between soil mites(Acarina:Cryptostigmata) and vegetation in sampled area. From July 1984 to June 1985, samples were taken monthly from coniferous forests; a pinenut (Pinus koraiensis S. et Z.) forest (site C-1), a whitepine(Pinus strobus L.) forest (site C-2), a needle fir tree(Abies holophyla Max.) forest (site C-3), and three broad-leaved forests; site B-1, B-2, and B-3 in Cholanamdo province, southerm part of Korea. Vascular plants of 152 species belonging to 115 genera (53 families) were identified. The flora in the coniferous forests were more diverse than in the broad-leaved forest. Similarity coefficient to the flora was shown highly between the neighbouring sites. The oribatid species in the coniferous forests were more diverse than those in the broadleaved forests. The similarity index suggested that oribatid mites in those surveying sites could be divided into "coniferous forest type" and "broad-leaved forest type".d forest type".uot;.

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Characteristics of Breeding Bird Communities in Mt. Namsan, Seoul, Korea

  • Rhim, Shin-Jae;Lee, Ju-Young;Kang, Jeong-Hoon
    • 한국산림과학회지
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    • 제95권5호
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    • pp.580-584
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    • 2006
  • This study was conducted to clarify the characteristics of breeding bird communities between deciduous and coniferous forests from April to June 2005 in Mt. Namsan, Seoul, Korea. Two 10ha areas were selected for territory mapping of breeding bird communities. Number of breeding bird species, pairs,density and bird species diversity index were higher in deciduous forest with increasing amount of foliage in the forest profile or as forest structures developed compared with coniferous forest. The number of in coniferous forest. The differences in habitat structure between both study areas are very likely to have influenced how breeding birds used the available habitat. Forest structure and its interactions with birds should be consideration in forest management for birds and their habitat.

태백산맥 일대 침엽수림의 선태식생의 수리분류학적 연구 (Numerical Syntaxonomy of the Bryophyte Communities of the Coniferous Forests in the Taebaek Range)

  • 송종석
    • The Korean Journal of Ecology
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    • 제22권3호
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    • pp.119-129
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    • 1999
  • 태백산맥의 태백산, 오대산, 설악산 일대에서 산지대 상부부터 분포하는 침엽수림 내의 임상 선태류군락에 대해 수리군락분류학적 수법 및 식물사회학적 방법에 의해 연구하였다. 그 결과 고등식물의 종조성과 관련하여 그에 대응하는 4개의 임상 선태류군락을 식별하였다. 짚빵나무-분비나무/설악눈주목-눈잣나무/수풀이끼-겉창발이끼군락은 조사지역 중 더 높은 해발에 분포하며 주극요소의 종군에 의해 식별되었고, 짚빵나무-분비나무군집 혹은 설악눈주목-눈잣나무군집의 분층군락을 이루었다. 반면에 조릿대-분비나무/등덩굴초롱이끼-긴몸초롱이끼군락, 전나무-분비나무/작은잎깃털이끼-꼬인아기초롱이끼군락, 벌깨덩굴-분비나무/아기호랑꼬리이끼-겹친주목이끼군락은 더 낮은 해발의 침광혼효림 영역에 분포하며, 물개암나무-신갈나무군집의 분층군락을 이루었다. 상기 군락의 조사구 및 종에 대해 집괴분석, 종간결합분석, 주성분분석의 수리군락분류학적 수법을 적용한 결과, 이들은 크게 두가지 형으로 분리되었으며, 각각 산지대와 아고산대의 임상 선태류군라을 특징지웠다. 끝으로 태백산맥에서 냉온대와 아한대의 삼림대적 접속관계를 식물사회학적 입장에서 재검토하였다.

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Differences in Artificial Nest Boxes Use of Tits Between Deciduous and Coniferous Forests

  • Rhim, Shin-Jae;Lee, Ju-Young
    • 한국산림과학회지
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    • 제94권5호통권162호
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    • pp.338-341
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    • 2005
  • This study was conducted to describe the differences in artificial nest boxes use of tits between deciduous and coniferous forests at 2nd campus of Chung-Ang University ($37^{\circ}00^{\prime}04^{{\prime}{\prime}}N$, $127^{\circ}13^{\prime}96^{{\prime}{\prime}}E$), Ansung, Korea from January to August 2005. Tree species richness, tree species diversity index (H') and total basal areas were higher in deciduous forest than in coniferous forest. High, middle, low and understory canopy layers were more developed in deciduous forest, except the coverage of bush-ground layer. Varied tit Parus varius, marsh tit P. palustris and great tit P. major used the artificial nest boxes in this study. Number of breeding pairs of tits used artificial nest boxes, clutch size, and weight and size of eggs were higher in deciduous forest than in coniferous forest. The differences in habitat structure between study sites are very likely to have influenced how breeding birds used the available habitat. Artificial nest boxes could be used as management and conservation tool for birds, particularly in areas, where the availability of natural cavities and coverage of higher layer are limited.

백두대간 보호지역 침엽수림의 식생분류, 종다양성 및 구조적 특성 (Vegetation Classification, Species Diversity, and Structural Characteristics of Coniferous Forest in Baekdudaegan Protected Area, Korea)

  • 조현제;김준수;조준희;오승환
    • 한국산림과학회지
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    • 제110권4호
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    • pp.516-529
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    • 2021
  • 백두대간 보호지역 침엽수림은 기후변화, 식생천이, 인간간섭 등 다양한 교란 요인으로 토지 본래의 식생 조성과 구조의 변화가 커서 생태적 안정성과 더불어 경관적 다양성과 특이성이 점차 저하되고 있다. 본 연구는 백두대간 보호지역 침엽수림의 전면적이고 종합적인 보전 방안 수립의 기초자료를 제공할 목적으로 2016년에서 2020년까지 5년간 수행된 산림청 백두대간 자원실태변화조사에서 수집된 총 755개 임분의 식생정보를 바탕으로 정량적인 ZM학파의 식물사회학적 방법과 정량적인 이원지표종분석 방법(TWINSPAN)을 병용하여 종조성적 식생유형을 구분하고 그 종다양성과 구조적 특성을 파악하였다. 그 결과, 백두대간 보호지역 침엽수림의 식생유형은 2개 군락군, 4개 군락, 7개 아군락, 그리고 14개 변군락의 식생단위 체계 하에 총 15개 유형으로 구분되었다. 또한, 침엽수림 구성종의 100 m2당 평균 총피도와 출현종수는 각각 232%, 21종 그리고 종다양도와 종우점도 지수는 각각 평균 1.907, 0.222로 나타났다.