• Title/Summary/Keyword: Mt. Jang area

Search Result 60, Processing Time 0.023 seconds

Effects of elevation and canopy openness on a dwarf bamboo (Sasa quelpaertensis Nakai) vegetation and their consumer communities (고도와 수관부 유무가 제주조릿대 군락과 소비자 군집에 미치는 영향)

  • Lee, Jin;Lee, Jae-Young;Jang, Beom-Jun;Jeong, Gilsang;Choi, Sei-Woong
    • Korean Journal of Environmental Biology
    • /
    • v.37 no.3
    • /
    • pp.249-259
    • /
    • 2019
  • We investigated the tritrophic interactions associated with elevation and openness of dwarf bamboo (Sasa quelpaertensis Nakai) vegetation on Mt. Halla, Jeju Island. The interactions between dwarf bamboo plants and its consumers were investigated in four study sites with and without canopy along the elevation gradient. The ecological traits of dwarf bamboo included leaf area, water content, nitrogen content and carbon/nitrogen ratio. Arthropods were collected using a sweeping net and they were later divided into three different feeding guilds: herbivorous, omnivorous and predators. We found that the elevation and canopy openness on dwarf bamboo vegetation was positively related and as elevation increased and canopy opened, the bamboo densities and C/N ratio increased. However, the leaf area, water content and the N content decreased. The study sites with closed canopy indicated a relatively higher species richness of arthropods including insects. We concluded that the tritrophic interactions is closely related to the ecological characteristics of the dwarf bamboos, which is affected by elevation and canopy openness.

Floristic Study of Mt. Segeolsan in Korea (세걸산의 관속식물상)

  • Kim, Yoon-Young;Na, Nu-Ree;Song, Hye-In;Jang, Changgee
    • Korean Journal of Plant Resources
    • /
    • v.29 no.1
    • /
    • pp.110-127
    • /
    • 2016
  • This floristic study was conducted from April to September, 2014 in 12 days. The investigated area was Mt. Segeolsan (1,261 m) which is the part of Chirisan National Park and its neighbor region, Goan-ri, Sandeuk-ri. Based on voucher specimens, flora of this area consisted of 108 families, 376 genera, 584 species, 5 subspecies, 73 varieties, and 16 forma, totally 679 taxa. 17 taxa were endemic to Korea such as Carex okamotoi Ohwi, Cimicifuga austrokoreana H.W. Lee & C.W. Park., Thalictrum rochebrunianum var. grandisepalum (H.Lév.) Nakai, Fallopia koreana B.U. Oh & J.G. Kim, Asarum patens (Yamaki) Yamaki ex Y.N. Lee, and Stewartia pseudocamellia Maxim. etc. Among these species, C. austrokoreana, T. rochebrunianum var. grandisepalum, F. koreana, A. patens are considered having a southern boundary line of distribution in the Chirisan National Park region. And so Carex okamotoi has main distribution center in the Chirisan National Park region, this study region is assumed important in phytogeography. The useful plants were 633 taxa, ethonobotanic plants were 359 taxa in this area. Invasive alien species were 61 taxa, which were naturalized rate (9.0%) and urbanized index (17.4%).

Ecological Studies on the Inhavitation of Fieldmice in Mt. Jiri (지리산야서(智異山野鼠)의 서식생태(棲息生態)에 관(關)한 연구(硏究))

  • Yun, Kang Bok;Kim, Jai Saing
    • Journal of Korean Society of Forest Science
    • /
    • v.70 no.1
    • /
    • pp.38-44
    • /
    • 1985
  • These surveys were conducted for the purpose of fundamental data of environmental ecology to save the damage of the fieldmice at the National Park of Mt. Jiri, shown especially in the 5 areas of Jang-dang, U-pyung, Jung-san-ri, Sea-seok and Dae-sung area from October, 1983 to September, 1984 during which the fieldmice were very active. The results were summarized as follows; 1) Fieldmice observed were 3 species: Clethrionomys rufocanus regulus, Apodemus speciosus peninsulae and Apodemus agrarius coreae. 2) Types of fieldmice hole were of 5 types; around the roots of trees, at fallen trees, between rocks and the ground, on the surface of the slope ground, on the surface of the ground. The holes were found mostly around the trees (33.2%). 3) Inhabitant ratio was the highest at Dae-sung area (22.6%). Breeding was the most active in July. 4) Females found in July at Sea-seok area were the most in the number (6.6%). Males found at U-pyung area were the most in July in the number, at Sea-seok area in May, at Dae-sung area in July (5.4%). 5) The weight ranged between 20.3g and 57.4g. Clethrionomys rufocanus regulus was the heaviest (37.8g), Apodemus speciosus peninsulae the next and Apodemus agrarius coreae the highest. The heaviest were those found at Dae-sung area.

  • PDF

A Study on the Management and Use of Plant Resources in Baekdudaegan Arboretum - Focused on Aboretum Core area, Munsu and Okseok Mountain - (국립백두대간수목원의 식물자원 및 관리·활용방안 - 수목원 중점조성지역, 문수산, 옥석산을 중심으로 -)

  • Chung, Bo-Kwang;Gang, Sin-Gu;Bae, Jun-Gyu;Kim, Jae-Hyeon;Sung, Jeong-Won;Kim, Gi-Song;Lee, Sang-Yong;Youn, Hong-Gyun;Im, Jin-Hyeon;Lee, Yeong-Su;Jang, Jeong-Won
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.18 no.6
    • /
    • pp.111-133
    • /
    • 2015
  • This study was carried out to survey the vascular plants of Baekdudaegan Arboretum area. The results are as follows. The numbers of flora in this study area were summarized as 655 taxa including 95 families, 332 genera, 567 species, 5 subspecies, 72 varieties and 11 formas. The rare plants were 17 taxa including Parasenecio firmus, Rhododendron micranthum, Iris odaesanensis, Lysimachia coreana and so forth. The Korean endemic plants were 16 taxa including Weigela subsessilis, Heloniopsis koreana, Salix koriyanagi, Vicia chosenensis and so forth. Plants Adaptable to Climate Change were Northern plants 18 species, Southern plants 2 species, endemic plants 10 species. The naturalized plants were 44 taxa and ratios of naturalized index and urbanization index were estimated Core area 10.2% and 4.9%, Mt. Munsu 4.9% and 2.3% and Mt. Okseok 5.5% and 2.6%. The floristic regional indicator plants found in this area were 3taxa(2.5%) of grade V, 12taxa(11.0%) of grade IV, 22taxa(20.2%) of grade III, 35taxa(32.1%) of grade II. In life forms, hemicryptophytes were The most dominant. Next was a Therophytes. In addition, 492 taxa were categorized by usage into 8 groups, as follows: Edible 239taxa(36.5%), Fiber 10taxa(1.5%), Industrial 1taxon(0.2%), Miscellaneous 183taxa(27.9%), Ornamental 65taxa(9.9%), Pasturing 259taxa(39.5%), Siscellaneousg 14taxa(2.1%) and Timer 21taxa(3.2%).

Agricultural Status of Lam Dong Province in Vietnam and the Strategy for Korea-Vietnam ODA International Cooperation Program in Agriculture (베트남 람동성의 농업현황 및 한-벳 ODA 농업협력사업 전략)

  • Cho, Joon-Hyeong;Jang, Hye-Ri;Lim, Jong-Min;Lee, Sok-Young;Kim, Wan-Seok
    • Journal of the Korean Society of International Agriculture
    • /
    • v.23 no.5
    • /
    • pp.465-474
    • /
    • 2011
  • Agricultural environment of Lam Dong province, which is located in central highland area, is totally different from that of other lower areas in Vietnam. In Lam Dong province, abundant plant resources were naturally grown such as pine trees, taxus, and wild orchids, which can grow in high mountainous area. In Lam Dong, the field proportion of perennial crops was higher than that of annual crops. However, the field proportion and yields of vegetables were highest among the all cultivated crops, estimating 38% (36,552ha) and 72% (993,082MT), respectively. Especially in Da Lat, vegetables, flowers, orchids, and industrial crops were mainly produced because this area is geographically close to Ho Chi Minh city. And also in Da Lat, 64% (8,447ha) and 36% (4,777ha) of farm fields were used for producing annual and perennial crops, respectively, and the yields of fresh vegetables in this area was estimated to 213,478MT which was 21.5% of the whole yields in Lam Dong province. Thus Korea, Taiwan, Japan, France, and Holland have invested to agriculture in Da Lat for producing and exporting flowers, vegetables, and tea. In 2009, flower cultivation area of Da Lat was over 55% in Lam Dong province and average amount of values were 9,781 million USD, which was higher than that of al other crops. Thus following strategies could be suggested for the development of agriculture in Lam Dong province. The first, agricultural cooperation with Da Lat, Lam Dong, should be characterized to horticulture and floriculture, followed by supporting both appropriate R&D techniques and equipments. And then agricultural system should be made in relationship with the local companies. Finally, agricultural cooperation program should be conducted toward the direction for both donor and recipient countries.

The Flora of Vascular Plants in Mt. Gariwang Protected Area for Forest Genetic Resource Conservation, South Korea (가리왕산 산림유전자원보호구역의 관속식물상)

  • Byun, Jun Gi;Jang, Jeong Won;Yang, Jong Cheol;Lee, You Mi;Jung, Su Young;Ji, Sung Jin;Jang, Jin;Lee, Hye Jeong;Hwang, Hee Suk;Oh, Seung Hwan
    • Korean Journal of Plant Resources
    • /
    • v.26 no.5
    • /
    • pp.566-588
    • /
    • 2013
  • This study was carried out to investigate the vascular plants of the Mt. Gariwang (1,560.6 m) Protected Area for Forest Genetic Resource Conservation. The vascular plants collected 5 times (from May 2011 to October 2012) consisted of total 529 taxa; 89 families, 272 genera, 458 species, 3 subspecies, 62 varieties and 6 forms respectively. Among them, 22 taxa of Korean endemic plants and 30 taxa of Korean rare plants were investigated in addition to 144 taxa of specially designated plants announced by the Ministry of Environment of Korea. Naturalized plants were 15 taxa, therefore naturalized ratio was 2.83%. 529 taxa listed consists of 178 taxa (33.6%) of edible plants, 144 taxa (27.2%) of medicinal plants, 163 taxa (30.8%)of pasture plants, 68 taxa (12.8%) of ornamental plants, 20 taxa (3.8%) of timber plants, 8 taxa (1.5%) of fiber plants, respectively.

Floristic Study of Mt. Mudeung (무등산 지역의 식물상)

  • Hong, Hang-Hwa;Jang, Jeong-Won;Sun, Eun-Mi;Kim, Byeol-Ah;Kim, Sang-Jun;Seo, Seung-Ryong;Im, Hyoung-Tak
    • Korean Journal of Environmental Biology
    • /
    • v.31 no.2
    • /
    • pp.121-153
    • /
    • 2013
  • We investigated the flora of Mudeung-san (Mt.) located in Gwangju-gwangyeoksi, Hwasun-gun and Damyang-gun and discussed the vascular plants found there. 22 days separate fild trips were completed from March of 2009 to November 2011. As a result, we identified the distribution of 816 taxa in Mudeung-san (Mt.), comprising 123 families, 441 genera, 668 species, 5 subspecies, 121 varieties and 18 forms. There are a total 111 taxa of floristic regional indicator plants. The floristic regional indicator plants are as follows; nine taxa of level V such as Gastrodia elata Blume, six taxa of level IV such as Hylomecon hylomeconoides T. Lee, 21 taxa of level III such as Stewartia korena Nakai, 18 taxa of level II, and 66 taxa of level I. In addition, two critically endangered species (CR), Galeola septentrionalis Rchb.f. and Paeonia obovata Maxim., two endangered species (EN), Dryopteris cycadina (Franch. & Sav.) C.Chr. and Jeffersonia dubia Benth., and eight vulnerable species (VU), such as Lilium callosum Siebold & Zucc, were found in the investigated area. Also, 14 endermic plants of Korea, such as Salix koriyanagi Kimura and Aconitium chiisanense Nakai, were found.

The Analysis on the Forest Community of Raised Bog in Mt. Daeam (대암산(大岩山) 고층습원(高層濕原) 주변(周邊)의 산림군집(森林群集) 분석(分析))

  • Song, Ho Kyung;Kwon, Ki Won;Yim, Kyong Bin;Cheong, Jin Cheol;Jang, Kyu Gwan
    • Korean Journal of Agricultural Science
    • /
    • v.20 no.2
    • /
    • pp.145-152
    • /
    • 1993
  • Vegetational data obtained from 15 quadrats of Mt. Daeam area were analysed by applying two multivariate methods : two-way indicator species analysis(TWINSPAN) for classification and detrended canonical correspondence analysis(DCCA) for ordination. The dominant tree species were Quercus mongolica, Acer pseudo-sieboldianum, Betula costata, and Acer mono in descending order. The pH ranges were 5.0 to 5.5 in the 15 sites near bog and 5.3 to 5.4 in the 3 sites within bog. The forest communities in Mt. Daeam were classified into Quercus mongolica-Acer mono, Quercus mongolica-Prunus sargentii, Quercus mongolica-Abies nephrolepis-Acer tschonoskii var, rubripes, and Quercus mongolica-Abies nephrolepis-Betula costata according to the TWINSPAN. The relationships between the distribution of dominant species of forest vegetation and soil in the forest of Mt. Daeam were investigated by analyzing soil nutrition gradient. Quercus mongolica-Prunus sargentii forests were distributed in the good sites in nutrition levels of total nitrogen, cation exchange capacity, $Mg^{+{+}}$ and $Ca^{+{+}}$ but Quercus mongolica-Abies nephrolepis-Betula costata forests in the poor sites in the nutrition levels.

  • PDF

A Case Analysis of Volcanic Ash Dispersion under Various Volcanic Explosivity Index of the Mt. Baegdu (백두산 분화 강도에 따른 화산재 확산 사례 분석)

  • Lee, Soon-Hwan;Jang, Eun-Suk;Lee, Hyun-Mi
    • Journal of the Korean earth science society
    • /
    • v.33 no.3
    • /
    • pp.280-293
    • /
    • 2012
  • In order to clarify the characteristics of dispersion of volcanic tephra emitted from the Mt. Baegdu with various eruption environment, numerical analysis were performed using numerical models, Weather Research and Forecast (WRF) and FLEXPART. Synoptic conditions at 12 October 2010 was adopted because the volcanic ash of Mt. Baegdu can reach the Korean peninsula and its dispersion pattern was compared with different Volcanic Explosivity Index (VEI) and particle size. Predominant size of falling out ash flowing in the peninsular is smaller than 0.5 mm and the ash large than the size is difficult to get in the peninsular due to the its weak ability of truculent diffusion. the difference of ash distribution with various VEI scenarios is not so much but number density of ash in the air is dramatically changed. Volcanic ash tends to be deposited easily in eastern coastal area such as Gangneung and Busan, because of the inflow of ash from East Sea and barrier effect of the Taeback mountains along the east coast of the Korean Peninsula. Accumulated amount of ash deposition can be increased in short period in several urban areas.

Floristic study of Mt. Cheongtae area (Pyeongchang-gun, Gangwon-do) (청태산 지역(강원도 평창군)의 식물상)

  • Ji, Seong-Jin;Jung, Su-Young;Chang, Chin;Jang, Jeong-Won;Lee, Cheol-Ho;Yang, Jong-Cheol;Park, Myung-Soon;Chung, Gyu-Young
    • Korean Journal of Plant Taxonomy
    • /
    • v.41 no.4
    • /
    • pp.415-428
    • /
    • 2011
  • The vascular flora in the Mt. Cheongtae area, located Pyeongchang-gun in Gangwon-do, were surveyed 14 times from April of 2008 to October of 2011. The result of this survey revealed 663 taxa in total, comprising 89 families, 342 genera, 577 species, 6 subspecies, 73 varieties and 7 forms. In the flora of this area, 19 taxa were Korean endemic plants and 24 taxa were rare and endangered plants of Korea. The floristic regional indicator plants found in this area were 136 taxa comprising 4 taxa of grade V, 16 taxa of grade IV, 31 taxa of grade III, 41 taxa of grade II and 44 taxa of grade I. Naturalized plants in Korea numbered37 taxa. In addition, 485 taxa were categorized by usage into 8 groups, as follows: 240 edible, 8 fiber, 177 medical, 60 ornamental, 245 pasturing, 2 industrial, 12 dyeing and 16 timer plants.