• Title/Summary/Keyword: Salix

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Vascular Plants of the Bulyeong Valley in Uljin-gun, Gyeongbuk (경북 울진군 불영계곡 일대의 관속식물상)

  • Oh, Hyun-Kyung;Shin, Hyun-Tak
    • Korean Journal of Environmental Biology
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    • v.24 no.4
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    • pp.359-367
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    • 2006
  • The vascular plants of this site were identified as 641 taxa through field investigation; 101 families, 340 genera, 547 species, 80 varieties, 12 forms, 1 subspecies and 1 hybrid. Based on the Rare plants of the Forest Service and Korea Forest Research Institute, 9 taxa were listed except implanted species; Loranthus tanakae, Aristolochia manshuriensis, Aristolochia contorta, Viola albida, Cypripedium macranthum, Schpolia japonioa, Acanthopanax chiisanensis, Rhododendron micranthum. Based on the Korean endemic plants, 18 taxa were listed; Salix purpurea var, japonica, Asarum sieboldii var. mandshuricum for. misnadrum, Persicaria lapathifolia for. alba, Pseudostellaria sylvatica, Aconitum pseudolaeve var. erectum, Corydalis maculata, Corydazis albipetala, Corydalis grandicazyx, Cardamine amaraeiormis, Chrysosplenium barbatum, Filipendula glaberrima, Lespedeza x tomentella, Acanthopanax chiisanensis, Melampyrum setaceum var. nakaianum, Weigela subsessilis, Adenophora triphylla var. hirsute, Cirsium setidens, Saussurea pseudogracilis. Specific plant species by floral region were total 81 taxa (12.6%); Prunus yedoensis in class V, 13 taxa (Thuja orientalis, Cimicifuga heracleiiolia, Sedum middendorffianutn, Rhododendron micranthum, etc.) in class IV, 17 taxa (Equisetum palustre, Aceriphyllum rossii, Angelica gigas, Cirsium setidens, etc.) in class III, 15 taxa (Heloniopsis orientalis, Lychnis cognata, Saxifraga oblongifolia, Viola orientalis, etc.) in class II, 35 taxa (Hosta capitata, Cimicifuga simplex, Chrysosplenium flagelliferum, Campanula punctata, etc.) in class I. So, the naturalized plants were listed 53 taxa and the naturalization index was 8.2%, urbanization index was 20.7%.

Status and Distribution of Vascular Plants of Lower Keum River in Gunsan Area, Jeonbuk (전북 군산지역 금강하류 일대의 관속식물 현황과 분포)

  • Oh, Hyun-Kyung;Beon, Mu-Sup
    • Korean Journal of Plant Resources
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    • v.20 no.2
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    • pp.113-124
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    • 2007
  • The vascular plants of the studied area in Keum River lower stream were listed 238 taxa: 74 families, 179 genera, 211 species, 24 varieties and 3 forms. In this, Woody plant were 60 taxa (25.2%), Herb plants were 178 taxa (74.8%) of all 238 taxa vascular plants. Pteridophyta were 4 families, 4 genera, 4 taxa, Gymnospermae were 2 families, 2 genera, 3 taxa and Angiospermae were 68 families, 173 genera, 231 taxa. Based on the list of Korean endemic plant, 2 taxa were recorded; Populus tomentiglandulosa, Forsythia koreana. Specific plant species by floral region were total 7 taxa; Salix siuzevii in class III, 6 taxa (Ainus hirsute, Quercus variabilis, Mallotus japonicus, Plantago camtschatica, Actinostemma lobatum, Sagittaria aginashi) in class I. The naturalized plants in this site were 14 families, 35 genera, 40 species, 2 varieties, 42 taxa and naturalization rate was 17.6% of all 238 taxa vascular plants. Wild plants disturbing ecosystem like Ambrosia artemisiifolia var. etatior have been increasing. So, it needs continuing control and conservation measures on the plant ecosystem.

Vascular Plants in Jinhae-si of Southern Coastal Area (남해안 진해시에 분포하는 관속식물상)

  • You, Ju-Han;Jung, Sung-Gwan;Kim, Kyung-Tae;Choi, Won-Young;Park, Jong-Wan;Kwon, Do-Gyun;Lee, Woo-Sung;Kim, Ji-Sung;Park, Kyung-Hun
    • Korean Journal of Plant Resources
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    • v.20 no.2
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    • pp.155-167
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    • 2007
  • This study was carried out to offer the raw data for environment conservation by surveying and analysing the flora distributed over Jinhae-si, and to present the frame for preparing the method of obtaining the bioresource in approach to plant resource. The period of survey was from May, 2005 to June, 2006, and the routes were A(Mt. Jangbok), B(Ahnmin hill) C(Mt. Hwa). The results as follows. The vascular plants were summarized as 447 taxa; 98 families, 286 genera, 394 species, 49 varieties, and 4 forma. The rare plants designated by Korea Forest Service were 2 taxa; Tricyrtis dilatata and Viola albida. The Korean endemic plants were 11 taxa; Tricyrtis dilatata, Salix caprea, Carpinus coreana, Melandryum seoulense, Clematis trichotoma, Thalictrum uchiyamai, Deutzia coreana, Spiraea prunifolia for. simpliciflora, Lespedeza maritima, Forsythia koreana and Weigela subsessilis.

Floristic Study of Jingangsan (Ganghwa-gun), Korea (진강산(강화군)의 관속식물상)

  • Kim, Jung-Hyun;Park, Sung-Ae;Yoon, Chang-Young
    • Korean Journal of Plant Resources
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    • v.29 no.2
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    • pp.189-203
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    • 2016
  • This study was carried out to investigate the flora of Jingangsan Mt. (Ganghwa-gun). The vascular plants identified during the 11 round field surveys were a to total of 560 taxa: 114 families, 336 genera, 495 species, 7 subspecies, 53 varieties, 4 forms and 1 hybrid. A high plant diversity were Poaceae (11.0%), Asteraceae (10.8%), Cyperaceae (8.8%), Rosaceae (4.6%) and Lamiaceae (4.3%) in regular order. The four taxa of Korean endemic plants such as Viola seoulensis Nakai, Salix koriyanagi Kimura ex Goerz, Hemerocallis hakuunensis Nakai and Polygonatum infundiflorum Y. S. Kim, B. U. Oh & C. G. Jang were collected. The vascular plants on the red list according to IUCN evaluation basis were found to be four taxa: Near Threatened (NT) species of Delphinium maackianum Regel, and Not Evaluate (NE) species of Mosla japonica (Benth. ex Oliv.) Maxim., Carex paxii Kük. and Polygonatum infundiflorum Y. S. Kim, B. U. Oh & C. G. Jang. The floristic regional indicator plants found in this area were 28 taxa comprising two taxa of degree IV, three taxa of degree III, eight taxa of degree II, and 15 taxa of degree I. In addition, the naturalized plants were identified as 44 taxa and the percentage of naturalized index (NI) was 7.9%, and Urbanization Index (UI) was 13.7%.

Vegetation Structure and Management Methodology for Ecotourism Resources of Pocheon Valley, Mt. Gaya in Korea (가야산 포천계곡의 생태관광자원 활용을 위한 식생구조 분석과 관리 방안)

  • Lee, Sung Je;Ahn, Young-Hee
    • Korean Journal of Environment and Ecology
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    • v.33 no.6
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    • pp.695-707
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    • 2019
  • This study was intended to suggest the appropriate vegetation management methodology by analyzing phytosociology for ecotourism resources. We carried out the classification and interpretation of the vegetation structure and the analysis of the relationship between communities and environmental conditions in Pocheon valley, Mt. Gaya. The vegetation in Pocheon valley was composed of 5 communities: Pinus densiflora-Quercus mongolica community, Quercus serrata-Quercus variabilis community, Larix kaempferi-Quercus serrata community, Pinus densiflora-Castanea crenata community, and Salix gracilistyla-Phragmites japonica community. The Quercus serrata-Quercus variabilis community was further segmented into two types according to the differences of composition species and location of habitats. The methodologies that satisfy both the use of nature for ecotourism resources and the sustentation of natural vegetation are as follows: - maintenance the present vegetation (dominance species) by strictly avoiding artificial management in the tree layer; - maintenance of the existing vegetation structure through the artificial management of the usual vigorous tree species when the species in the shrub layer grow up to the subtree layer; and - continued artificial management to maintain high balanced diversity and evenness of various species in shrub and herb layers.

A Study on the Flora and Vegetation of Civilian Control Line Area (Hyangro-Bong, Chiljeol-Bong, Mt. Mae-Bong in Inje-gun, kangwon-do) (민통선 접경지역(매봉산, 칠절봉, 향로봉)일대의 식물상에 관한 연구)

  • 박광서;안치호;박완근
    • Journal of Korea Foresty Energy
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    • v.20 no.2
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    • pp.81-116
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    • 2001
  • The flora of vascular plants investigated in civilian control line area was 730 taxa consisting of 104 families, 331 genera, 631 species, 2 subspecies, 90 varieties, 7 formae. The forest was comparatively well conserved by Pteridophyta calculation(Pte-Q), 1.27. Among the investigated vascular plants, Korean endemic plants(Carex okamotoi, Salix koriyanagi, Clematis chisanensis, Aconitum pseudo-laeve var. erectum, Viola diamantiaca etc.) were 31 taxa; rare and endangered plants(Disporum ovale, Lilium distichum, Trillium kamschaticum, Gastrodia elata etc.) were 35 taxa; naturalized plants(Dactylis glomerata, Poa pratensis, Rumex acetosella, Gypsophila oldamiana, Lepidium apetalum etc.) were 26 taxa. The forest vegetation was classified into 1 order, 1 alliances, 6 communities; Rhododendro-Quercetalia mongolicae Kim 1990(신갈나무-철쭉군목), Lindero-Quercion mongolicae Kim 1990(신갈나무-생강나무군단), A. Carex humilis v. nana- Phinus densiflora Community 소나무-산거울군락, B. Acer pseudo-sieboldianum-Quercus mongolica Community 당단풍-신갈나무군락, C. Styrax obassia-Quercus mongolica Community 쪽동백-신갈나무군락, D. Acer palmatum-Quercus mongolica Community 단풍나무-신갈나무군락, E. Rheodendron mucronulatum-Quercus mongolica Community 진달래-신갈나무군락, F. Betula schmiditii-Quercus mongolica Community 박달나무-신갈나무군락

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Reproductive Characteristics of Rhodeus pseudosericeus (Pisces: Acheilognathinae) in the Heukcheon, Namhangang (River), Korea (남한강 수계 흑천에 서식하는 한강납줄개 Rhodeus pseudosericeus (Pisces: Acheilognathinae)의 산란 특성)

  • Kim, Hyeong Su;Yoon, Jeong Do;Yang, Hyun;Choi, Hye-Sung;Lee, Jeong-Ho
    • Korean Journal of Ichthyology
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    • v.29 no.4
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    • pp.235-243
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    • 2017
  • Reproductive characteristics of Rhodeus pseudosericeus (Pisces: Acheilognathinae) was investigated at the Heukcheon (River), Yangpyeong-gun, Gyeonggi-do, Korea from January to July in 2012. This fish prefers heavily vegetated stagnant pool with Phragmites japonica and Salix koreensis and area with high proportions of sand and mud. The standard length of the population indicated that 13~22 mm group is 0-year old, 30~45 mm group is 1-year old, 45~55 mm group is 2-year old and 45~70 mm group is more than 3-year old (June in 2012). The sex ratio of female to male was 1 : 0.80. The spawning season was from March to June with water temperatures in the range $11.0{\sim}26.2^{\circ}C$. The embryos were found with no egg mass in Unio douglasiae sinuolatus and the number of those was 1~22 ($5.8{\pm}5.51$). The number of the embryos found in each of the four parts of the mussel gill was 1~9 ($2.7{\pm}2.16$) in left outer, 1~2 ($1.5{\pm}0.71$) in left outer, 1~5 ($1.8{\pm}1.79$) in left outer and 1~22 ($5.8{\pm}5.51$) in left outer.

Actual Vegetation and Vegetation Structure at the Coastal Sand Bars in the Nakdong Estuary, South Korea (낙동강 하구 연안사주섬의 현존식생 및 식생구조 연구)

  • Lee, Youl-Kyong;Ahn, Kyung-Hwan
    • Korean Journal of Environment and Ecology
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    • v.26 no.6
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    • pp.911-922
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    • 2012
  • This study aim that definite the relationship between coastal environment and different sand bar communities, as well as to analyze their spatial distribution of barrier island in the Nakdong river estuary. Survey method follow by Braun-Blanquet(1965) and there a total of 118 relev$\acute{e}$'s were undertaken. Definition of the relationships between species and environmental variables with Canonical Correlation Analysis(CCoA) and that to applied these relev$\acute{e}$'s with the RIM(Kim and Kim, 2006) program and that to classification used the SYN-TAX 2000 program(Podani 1979). On the basis of about 118 phytosociological releve's, the vegetation of xeric and hydric type was arranged in twelve plant communities: Xeric type-Pinus thunbergii community,Vitex rotundifolia community, Carex pumila community, Imperata cylindrica var. koenigii community, Miscanthus sacchariflorus community and Calystegia soldanella community, Hydric type-Salix dependens-Calamagrostis epigeios community, Calamagrostis epigeios-Phragmites communis community, Phragmites communis-Ischaemum aristatum community, Phragmites communis community, Scirpus planiculmis community and Suaeda glauca-S. japonica community.These plant communities represents sand dune vegetation and salt marsh vegetation. Widely distributing types in the actual vegetation map were sea club-rush community, reed community in salt marsh, and dry grassland. The edge in the coastal sand bars has zonation that almost distribution by the reed community in salt marsh. But outside of it were distributed sea club-rush community. Dry grassland type distributes higher zone of the center in coastal sand bars. Respectively, the coastal sand dune and salt marsh vegetation types were distributed ocean and inland on the frontier of it.

Influences of Vegetation Invasion on Channel Changes in the Deposition Area of Torrential Stream (계상퇴적지내의 식생침입이 유로변동에 미치는 영향)

  • Ma, Ho-Seop;Lee, Heon-Ho
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.3 no.3
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    • pp.12-19
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    • 2000
  • The purpose of this study is to evaluate the channel changes according to the temporal and spatial distribution of the deposition area by the vegetation invasion in Kyesung-river. The deposition area mainly occurred by landslide and debris flow from the headwater channel. And also the movement of subsequent downstream depends upon the site of deposits by a varity erosional processes. As the age of deposition area is older, it had a tendency to stable by plant invasion relatively. The vegetations grown in deposition area were very effective to estimate a historical deformation process of river-bed occurred by landslide. The vegetations around deposition area consisted of the same as tree species grown in forest area of circumference like Pinus densiflora, Styrax japonica, Quercus acutissima and Salix gracilistyla. If the torrential stream is flooding, the deposition area of 1 to 5 years can be change to the channel easily. Deposition area of 11 to 23 years had a high river-bed because it passed long time since deposited, and amount of sedimention is much more in wide than in narrow channel. It is consider that the change of channel had many influenced by the span of survial time, scale and movement frequency of deposition area after the vegetation invasion.

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Conservation Management Methods and Vascular Plants of the Trail from Jangansan to Palgongsan, Jangsu, Jeonbuk (장안산과 팔공산 구간(전북 장수)의 식물상 및 보전관리방안)

  • Oh, Hyun-Kyung;Han, Yun-Hee;Park, Kyung-Uk
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.1
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    • pp.227-244
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    • 2013
  • The vascular plants in the trail from Jangansan to Palgongsan were listed 389 taxa (8.0% of all 4,881 taxa of Korean vascular plants); 84 families, 226 genera, 325 species, 1 subspecies, 55 varieties and 8 forms. Furthermore, hemicryptophytes (H) were 110 taxa (28.3%), geophytes (G) were 77 taxa (19.8%), megaphanerophytes (MM) were 48 taxa (12.3%), nanophanerophytes (N) were 47 taxa (12.1%) showed high proportional ratio in life form. So, resource plants of 237 taxa of edible (60.9%), 278 taxa of medicinal (71.5%), 229 taxa of ornamental (58.9%) and 178 taxa of the others (45.8%). Based on the list of rare plants, 7 taxa (1.8% of all 389 taxa of flora and 1.2% of all 571 taxa of rare plants); Paeonia japonica (VU), Viola albida, Viola diamantica, Lilium distichum, Disporum ovale, Tricyrtis dilatata, Iris ensata var. spontanea (LC), etc. Based on the list of endemic plants, 7 taxa (1.8% of all 389 taxa of flora and 2.1% of all 328 taxa of endemic plants); Salix koriyanagi, Aconitum pseudolaeve var. erectum, Thalictrum actaefolium var. brevistylum, Philadelphus schrenckii, Asperula lasiantha, Weigela subsessilis, Carex okamotoi, etc. Based on the list of specific plants, 46 taxa (11.8% of all 389 taxa of flora and 4.3% of all 1,071 taxa of specific plants); 2 taxa (Wisteria floribunda for. floribunda, Cardamine yezoensis, etc.) in class IV, 6 taxa (Acer palmatum, Ulmus davidiana, etc.) in class III, 14 taxa (Ligularia fischeri, Cymopterus melanotilingia, etc.) in class II, 24 taxa (Ilex macropoda, Fraxinus mandshurica, etc.) in class I. Based on the list of naturalized plants, 6 families, 16 genera, 18 taxa (Phytolacca americana, Robinia pseudoacacia, Oenothera odorata, Erechtites hieracifolia, Festuca arundinacea, etc.) and invasive alien plants were 3 taxa; Rumex acetocella, Ambrosia artemisiifolia, Aster pilosus. Naturalization rate (NR) was 4.6% of all 389 taxa of vascular plants and urbanization index (UI) was 5.6% of all 321 taxa of naturalized plants.