• Title/Summary/Keyword: Valley forest

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Vegetation Structure of Hovenia dulcis Community in South Korea

  • Yun, Chung-Weon;Lee, Byung-Chun
    • The Korean Journal of Ecology
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    • v.25 no.1
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    • pp.33-39
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    • 2002
  • Objectives of this study are to make clear the vegetation structure of Hovenia dulcis community in the Korean Peninsula over ten mountains including 17 plots. The results were summarized as follows. Habitat of the community indicated that elevation ranged from 115 meter to 720 meter at the sea level, slope aspect in nearly all directions, bare rock from 0 to 90 percent, slope degree from 10$^{\circ}$ to 40$^{\circ}$, topography from valley to middle slope, the height of tree layer from 8m to 22m, the diameter at breast height from 12cm to 59cm and coverage from 65% to 95$\%$$\%$

Creation Techniques of Ecological Park to Consider Urban Forest Ecosystem in Woomyeonsan Urban Nature Park, Seoul (서울시 우면산 도시자연공원내 도시림의 생태적 특성을 고려한 생태공원 조성기법)

  • Lee Kyong-Jae;Lee Soo-Dong;Jang Jong-Soo;An In-Su
    • Journal of the Korean Institute of Landscape Architecture
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    • v.33 no.4 s.111
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    • pp.79-96
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    • 2005
  • This study is to suggest the technique of ecological park to compatible mountain ecosystem near the urban in Woomyeonsan Urban Nature Park. It was proposed to differential technique from established ecological park focused on changing the cognition of nature, wetland ecosystem protection and restoration, and studying by served sound leisure program(nature observation and experience, etc.), in compatible mountain and urban forest near the Urban. Firstly, to achieve this aim, it was carried out delicated research and analysis that were the angle of inclination, trail, fauna, actual vegetation, bird and insect, and then to selected nature trail course and analysis capability through it.. In the basic concept and plan, firstly to make park aid mark and foundation mark, and then to establish the detail programs, nature observation program, management and organization program. This site where valley and mountain coexist was highly capable but whole site was very steep, so usable area is very narrow. To make Woomyeonsan nature ecological park escape from the established wetland type, ecological park and the park of event have to use nature material and introduce visitor. To establish it as the Nature Culture observation park and reflect on forest, valley of Woomyeonsan was divided into three display places; Nature ecosystem Zone, Meditation Zone, Nature Culture experience Zone and Nature Culture observation Center. For satisfying with ecological park aid mark and foundation mark, it was proposed to settle management plan for volunteer control and organization composition.

Differences in Temporal Variation of Ground Beetle Assemblages (Coleoptera: Carabidae) between Two Well-Preserved Areas in Mt. Sobaeksan National Park

  • Jung, Jong-Kook;Suk, Sang-Wook;Kim, Byeong-Young;Hong, EuiJeong;Kim, Youngjin;Jeong, Jong-Chul
    • Journal of Forest and Environmental Science
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    • v.33 no.2
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    • pp.122-129
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    • 2017
  • Understanding how future climate conditions will be impact on the biodiversity and species composition is important, because biodiversity becomes more important in environment assessment. To understand the biological changes including diversity and species composition over time (temporal variation within a year), the species diversity and composition of ground beetles were investigated in two well-preserved areas in the Sobaeksan National Park using pitfall traps. In addition, relationships between ground beetles and environmental variables were studied by considering temporal variation. We collected 2,146 ground beetle specimens representing 45 species, and individual-based rarefaction curves indicated that similar species richness was found between Geumseon Valley (GV) and Namcheon Valley (NV). The Bray-Curtis matrix comparisons between study sites were characterized by similar ground beetles sample heterogeneity, while temporal variations in abundance, species richness, and ${\beta}-diversity$ of ground beetles showed rather difference over time according to location of study sites. In GV site, minimum temperature was selected as the best predictor for abundance, species richness, and ${\beta}-diversity$ of ground beetles, while those relationships in NV site were more complicated. In conclusion, our study suggests that understanding the different response of ground beetles to climatic variables related to local habitat conditions is important to predict the effect of climate change on biological communities.

Studies on the Structure of forest Community at the Danggol Valley in Taebaeksan Area, the Baekdudaegan (백두대간 태백산지역 당골계곡의 산림군락구조에 관한 연구)

  • Cho Hyun-Seo;Kim Gab-Tae;Choo Gab-Chul
    • Korean Journal of Environment and Ecology
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    • v.19 no.1
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    • pp.55-62
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    • 2005
  • To investigate the fore,:t community structure in the Danggol valley of Taebaeksan (Mt.), area, 45 plots$(10m\times10m)$, were set up with a random sampling method. By cluster analysis the forest community in the study area was classified into three groups (Larix leptolepis community, Fraxinus rhynchophylla-Carpinus cordata community, Betula costata-Quercus mongolica community). There were strong positive correlations between Euonymus sachalinensis and Rhododendron schlippenbachii: Weigela subsessilis and Rhododendron schlippenbachii, Euonymus sachalinensis; Acer pseudo-sieboldianum and Acer tegmentosum; Quercus mongolica and Tilia amurensis. While there were negative correlations between Acer pseudo-sieboldianum and Tilia amurensis, Acer ukurunduense: Quercus mongolica and Acer ukurunduense; Pinus koraiensis and Euonyms sachalinensis Fraxinus sieboldiana and Magnolia sieboldii, Carpinus cordata, Acer mono. Species diversity(H') of the investigated area was $0.7932\~1.2077$.

Plant Community Structure of the Baekcheon Valley in Taebaeksan Area, the Baekdudaegan (백두대간 태백산지역 백천계곡의 식물군집구조)

  • 조현서;최송현
    • Korean Journal of Environment and Ecology
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    • v.15 no.4
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    • pp.369-378
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    • 2002
  • To investigate the forest structure and to suggest the basic data of forest in the Baekcheon Valley, fifty plots were set up and surveyed According to the analysis of classification by TWINSPAN. the community was divided by five groups of Quercus mongolica-Pinus densiflora(I), P. densiflora-Q. mongolica(II), Acer pseudosieboldianum-Q. mongolica(III). Betula schmidtii-A. pseudosieboldianum(IV), and Cornus controversa community(V). The structure of communities was investigated using importance value by layers The survey results were summarized as follows: 1) the results of annual ring analysis revealed that the age of Pinus densiflora forest was about 50~75 years old and Q. mongolica forest was about 40 years. 2) number of the average species was 11 1$\pm$2.2 and number of average individual was 74.6$\pm$28 1 per a plot(100$m^2$). From the above results including DBH distribution analysis it was anticipated that the deciduous broad leaf tree like C. controversa and B. schmidtii will be climax species instead of Q. mongolica. and P. densiflora.

Edge Vegetation Structure in Odaesan National Park (오대산 국립공원의 주연부 식생 구조)

  • 오구균;권태호
    • Korean Journal of Environment and Ecology
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    • v.9 no.2
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    • pp.202-210
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    • 1996
  • To investigate edge vegetation struxture and species in Odaesan National park, fild survey was excuted July 1-4, 1995 and the results were as follows. Species compasition of edge(0~10m) was dissimilar to that of forest interior(50m~60m) at (Mt.)Odaesan valley. Species diversity indices, number of species, crown coverage and number of individuals were decreased axxording to distance from edge to forest interior. Weigela subsessilis was appeared to be a competitive species at forest edge in temperate forest and edge species appeared only in Odaesan National Park were Clematis heracleaefolia and Spiraea blumei.

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A new record for Korean flora: Scutellaria tuberifera C. Y. Wu & C. Chen (Lamiaceae)

  • Kim, Chan-Soo;Kim, Soo-Young;Byun, Gwang-Ok
    • Korean Journal of Plant Taxonomy
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    • v.41 no.3
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    • pp.249-252
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    • 2011
  • Scutellaria tuberifera C. Y. Wu & C. Chen belonging to Lamiaceae, a species previously unrecorded for Korean flora, was collected streamside in the Andeok valley of Seogwipo-Si, on Jeju island. This species can be distinguished from others of Scutellaria from Korea by having rhizomes with leafless and branching stolons at the nodes, globose to ovoid tubers 5-7 mm in diameter at the terminal parts, and stems densely spreading pilose. Photos of the habit and illustration are provided.

Correlation Analysis between Forest Vegetation Type and Environment Factor in Mt. Hwaak (화악산의 산림군락과 환경요인의 상관관계 분석)

  • Yun, Chung-Weon;Kim, Hye-Jin;Yang, Hee-Moon;Lim, Jong-Hwan;Kim, Young-Kul;Shin, Joon-Hwan;Lee, Byeng-Cheon
    • Journal of Environmental Science International
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    • v.18 no.5
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    • pp.579-588
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    • 2009
  • The purpose of this study was to explain relationship between community structure and their environment variables in Mt. Hwaak. Samples were collected by 101 plots using ZM phytosociological method and followed by cluster, importance value and canonical correspondence analysis. The forest vegetation classified into 8 community types such as Pinus densiflora community, Berberis amurensis community, Betula ermani community, Betula schmidtii community, Larix leptolepis community, Pinus koraiensis community, Cornus controversa community and Salix koreensis community. Altitude was considered as the highest factor correlated to the community types. Berberis amurensis community and Betula ermani community were located in upper slope area of high elevation, Comus controversa community and Salix koreensis community in valley area, and Pinus densiflora community in ridge area, respectively.

Physical Properties of Soils in Relation to Forest Composition in Moist Temperate Valley Slopes of the Central Western Himalaya

  • Sharma, C.M.;Gairola, Sumeet;Ghildiyal, S.K.;Suyal, Sarvesh
    • Journal of Forest and Environmental Science
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    • v.26 no.2
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    • pp.117-129
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    • 2010
  • The present study was undertaken in moist temperate forest of Mandal-Chopta area in the Garhwal region of Uttarakhand, India. The aim of the present study was to assess the physical properties of soils in relation to the forest structure and composition. Twelve forest types according to the altitude, slope aspect and species compositions were selected for the study. Physical properties of soil i.e., soil colour, soil texture (per cent of sand, silt and clay), moisture content, water holding capacity, porosity, bulk density (gm/$cm^3$) and void ratio were analyzed for three different depths viz., (i) 'upper' (0-10 cm), (ii) 'middle' (11-30 cm) and (iii) 'lower' (31-60 cm) in all the selected forest types. Phytosociological and diversity parameters viz. total basal cover ($Gha^{-1}$), stem density ($Nha^{-1}$), tree species richness, Simpson concentration of dominance and Shannon-Wiener diversity index were also calculated for each forest type. This study also provides the comparisons between the results of physical analysis of the present study with numerous other previous studies in the temperate Himalayan region of the Uttarakhand.

External Morphology and Environment of Foraging Site in Asian parti-coloured Bat Vespertilio sinensis in Naejangsan National Park (내장산국립공원내 서식하는 안주애기박쥐(Vespertilio sinensis)의 외부형태 및 채식지 환경특성)

  • Chung, Chul-Un;Kim, Tae-Geun;Kim, Sung-Chul;Lim, Chun-Woo;Han, Sang-Hoon
    • Journal of Environmental Science International
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    • v.24 no.2
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    • pp.261-266
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    • 2015
  • We have analyzed the external morphology and the environment of the foraging site of Vespertilio sinensis. The external morphology was analyzed by twelve parameters and the environment characteristics of the foraging site was analyzed using GIS 10.1 program. The wing membrane was inserted into the ankle of the hind foot and the wing ratio was 1.42, the middle type between broad-short wing type and long-narrow wing type. The fur color was blackish brown but the guard hair color was whitish. The shape of the ear was a rounded triangle and tragus was a fan shape. This study showed that V. sinensis preferred the deciduous forest of the upper forest zone, where human interference was less. We believed that abundance of insects, depending on water system, was closely related to the use of the foraging site. This result showed that the environment characteristics was very similar to the nature preservation zone including Baekyang valley and Keumsun valley in Naejangsan National Park.