• Title/Summary/Keyword: forest plants

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Germination of Buried Seeds in Secondary Forest of Basla Zone - Coniferous and Broadleaved Forest of Low Slope, Yesan-gun, Korea - (저지대 이차림지역의 매토종자 발아특성 -예산군의 침엽수림과 활엽수림-)

  • Kang, Hee-Kyoung;Park, Jun-Young;Ahn, Sang-Kyo;Cho, Yong-Hyeon;Park, Bong-Ju;Kim, Won-Tae;Shin, Kyung-Jun;Eo, Yang-Joon;Song, Hong-Seon
    • Korean Journal of Environment and Ecology
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    • v.28 no.6
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    • pp.705-714
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    • 2014
  • This text was analyzed and investigated the aerial part plants and buried seed plants at coniferous forest and broadleaved forest in Yesan-gun, in order to offer the basic data of potential natural vegetation change on secondary forest. Plants of buried seed germination were consisted of 29 taxa in coniferous forest (28 species, 1 varieties, of 27 genus, 20 families) and 36 taxa in broadleaved forest (34 species, 2 varieties, of 32 genus, 18 families). Family classification of buried seed plant was the most in Compositae, and emergent plot frequency was the highest of Cyperus amuricus in coniferous forest and Crepidiastrum sonchifolium in broadleaved forest. The soil depth of the most plants appearance was 0~10 cm in coniferous forest and 0~5 cm in broadleaved forest, and the soil depth of the most population appearance was 0~2 cm in coniferous forest and broadleaved forest. Population of buried seed germination was decreased according as soil is deep. Crepidiastrum sonchifolium was a plant that population of buried seed germination is the most. Similarity index of the aerial part plants and buried seed plants was low as 0.22, and coniferous forest and broadleaved forest was 0.40.

Distribution of Vascular Plants in Youngjongdo and Yongyudo (영종도와 용유도 일대의 식물상)

  • Lee, Hye-Jeong;Park, Su-Hyun;Ha, Sang-Gyo;Hwang, Hee-Suk;Chang, Kae-Sun;Lee, You-Mi
    • Korean Journal of Environment and Ecology
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    • v.26 no.6
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    • pp.839-867
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    • 2012
  • Vascular plant surveys in Iss. Youngjongdo and Yongyudo, Incheon were conducted 6 times from May to October 2009 and July 2011. The vascular plants inventoried during the surveys were 644 taxa in total; 11 formas, 73 varieties, 4 subspecies, 556 species, 352 genera and 98 families. Among them, 250 taxa were newly found from the survey areas, including Cnidium japonicum Miq., Argusia sibirica (L.) Dandy, Breea setosa (Willd.) Kitam., Dryopteris erythrosora (D. C. Eaton) Kuntze and Dryopteris nipponensis Koidzumi. In the case of dormancy form, hemicryptophytes were most abundant by 37.1%. Six taxa of Korean endemic plants and nine Korean rare plants were also newly recognized along with 45 taxa of notable plants of regional flora announced by the Ministry of Environment. The naturalized plants were 95 taxa, and the Urbanization Index of the survey areas was 29.6%.

Flora of Vascular Plants of Mt. Deokhangsan Protected Area in Samcheok-si for Forest Genetic Resource Conserv ation in Baekdudaegan, Korea (백두대간 덕항산(삼척시) 산림유전자원보호구역의 관속식물상)

  • Kim, Se-Chang;Seo, Han-Na;Ahn, Chi-Ho;Park, Wan-Geun
    • Journal of Korean Society of Forest Science
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    • v.111 no.1
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    • pp.1-18
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    • 2022
  • In this study, the vascular plants of the Mt. Deokhangsan protected area were surveyed for the purpose of forest genetic resources conservation in Gangwon-do, South Korea. The flora on Mt. Deokhangsan were classified as follows 537 taxa, 90 families, 302 genera, 479 species, 4 subspecies, 51 varieties, and 3 forms. Among the taxa, 19 were Korean endemic plants and 17 were rare and endangered plants. Plants as indicators of limestone areas were found in 33 taxa. Naturalized plants were found in 27 taxa and species threatened by climate change were found in 33 taxa, including 11 endemic plant taxa and 22 northern plant taxa. Plants endemic to Korea and northern plants were mainly found at the study site, whereas southern plants were not found. Thus, Mt. Deokhangsan apparently has an environment suitable for the growth of northern plants.

A Study on the Flora and Community Classification of Forest Vegetation in the Mt. Yumyeong (유명산의 식물상 및 산림군락분류에 관한 연구)

  • Kim, Heung-Sik;Kim, In-Su;Hong, Kum-Hee;Kim, Nam-Young;Park, Kwang-Seo;Kim, Jeong-You;Park, Wan-Geun
    • Journal of Forest and Environmental Science
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    • v.19 no.1
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    • pp.69-84
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    • 2003
  • The study was carried out to investigate the flora and community classfication of forest vegetation in Mt. Yumyeong from March. 2002 to October. 2003. As a result of that. the vascular plants were 98 families, 331 genera, 570 species, 1 subspecies, 81 varieties, 4 formae, 2 hybrid, 658 taxa in all. Korean endemic plants were 10 families, 14 genera, 13 species, 2 variaties, 1 hybrid, 16 taxa in all; rare and endangered plants were 9 families, 10 genera, 11 species, 11 taxa in all: naturalized plants were 12 families, 22 genera, 28 species, 28 taxa in all. The forest vegetation was classified into 1 order, 1 alliance, 6 communities; Rhododendro - Quercetalia mongolicae (Kim, 1990) Lindero - Quercion mongolicae (Kim, 1990) A. Carex humiljs var. nana - Pinus densiflora Community B. Oplismenus undulatifoljus - Pinus koraiensis Community C. Fraxinius rhynchophylla - Quercus mongolica Community D. Cornus controversa - Quercus mongolica Community E. Quercus variabilis - Quercus mongolica Commnuty F. Lespedeza bicolor - Quercus mongolica Community.

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Distribution Characteristics of Woody Plants Resources in Jeiu, Korea (제주도 목본식물자원의 분포특성)

  • Kim, Chan-Soo;Son, Seok-Gu;Tho, Jae-Hwa;Kim, Ji-Eun;Hwang, Seok-In;Cheong, Jin-Hyun
    • Korean Journal of Plant Resources
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    • v.20 no.5
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    • pp.424-436
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    • 2007
  • In this paper, it was discussed situations and necessities of conservation management strategy for the woody plants resources in Jeju Island. Out of 320 taxa of the woody plants distributed in Jeju, there were 62 families, 136 genus, 279 species, 28 varieties and 13 forma. Conifers, gymnosperms, were 3 families, 5 genus and 7 species as holding 2.2% of total woody plants. Broad leaves, angiosperms, were 59 families, 131 genus, 272 species, 28 varieties and 13 forma that were 313 taxa. Evergreens were 84 taxa consisting of 31 families, 45 genus, 72 species, 7 varieties and 5 forma that make up 26.8% out of total angiosperms. Deciduous were 229 taxa(73.2%) consisting of 42 families, 93 genus, 200 species, 21 varieties and 8 forma that were 122 trees(38.1%), 177 shrubs(55.1%) and 21 vine plants(6.8%). Life form spectra by dormancy, disseminule, radicoid and growth form were analysed. Thirty eight taxa including 17 families, 21 genus, 14 species and 16 varieties out of 320 taxa growing Jeju were endemic to Korea and 22 taxa of them were endemic to Jeju. The specific plant species among the woody plants in Jeju were 10 taxa in V grade, 24 taxa in IV grade and 53 taxa in III grade. These are correspondence to those of nations as 12% of V grade, 7.6% of IV grade and 17.2% of III grade.

The Legacy Goes on: Ethnobotanical Knowledge of Uzbekistan Koryoin (ethnic Koreans)

  • Aleksey L. Kim;Hyeon Jin Jeong;Ju Eun Jang;Hyeok Jae Choi;Chang-Gee Jang;Hee-Young Gil
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.48-48
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    • 2022
  • Ethnobotany is an interdisciplinary science at the intersection of botany and ethnology. Currently, there is a sharply increasing need for the study and conservation of traditional knowledge about plants. The loss of traditional sources, knowledge, and practices in using plants is caused by the growth of technologies in all branches of production, widespread urbanization, and globalization of the economy. This study was been conducted to collect and analyze the Koryoins (Koryo saram) traditional ethnobotanical knowledge, living in Uzbekistan, whose number 174,200 people. They are the descendants of Korean immigrants to the Russian Far East, who ended up in Central Asia as a result of the forced resettlement in 1937. In the processing of collected data, four main categories of uses were defined - Alimentary, Medicinal, Household/Handicraft, and Others. For quantitative data analysis, synthetic indices were used - RFC (Relative Frequency of Citation) and CI (Cultural Importance Index), which are commonly applied to assess the importance of plants. The respondents mentioned 72 plants belonging to 28 botanical families. A significant part of them was cultivar plants. The category that had the largest number of plants mentioned by the respondents was the Alimentary use category (51). According to quantitative indices rates, the most important plants are traditionally used for food. A comparison of ethnobotanical knowledge was made with the collected data of this study and Korean traditional knowledge.

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Distribution of Vascular Plants in Is. Yeonpyeongdo Regions (연평도 일대의 식물상 연구)

  • Ryu, Hye-Seon;Park, Su-Hyun;Chang, Kae-Sun;Choi, Hyeong-Seon;Ha, Sang-Gyo;Lee, Hye-Jeong;Lee, You-Mi
    • Korean Journal of Environment and Ecology
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    • v.27 no.2
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    • pp.147-169
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    • 2013
  • The vascular plants of Is. Yeonpyeongdo regions, located in Ongjin-gun, Incheon were surveyed from May to October 2010. The vascular plants collected 4 times were consisted of total 524 taxa; 90 families, 315 genera, 459 species, 4 subspecies, 53 varieties and 8 formas respectively. Among them, 2 taxa endemic species of Korea and 8 taxa of Korean rare plants were investigated in addition to 38 taxa of specially designated plants announced by the Ministry of Environment. The naturalized plants were 66 taxa, therefore naturalized ratio was 12.6% highly.

Parasitic Behaviour of Xanthopimpla pedator Fabricius (Hymenoptera: Ichneumonidae) on Tropical Tasar Silkworm, Antheraea mylitta Drury (Lepidoptera: Saturniidae) Reared on Seven Forestry Host Plants in Uttarakhand, India

  • Bhatia, Narendra Kumar;Yousuf, Mohammad
    • International Journal of Industrial Entomology and Biomaterials
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    • v.27 no.2
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    • pp.243-264
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    • 2013
  • Antheraea mylitta Drury is a commercial silk producing forest insect in India and Xanthopimpla pedator Fabricius is its larval-pupal endoparasitoid, which causes pupal mortality that affects seed production. Effects of host plants, rearing season and their interactions on parasitic behaviour of X. pedator were studied here, as influence of these factors on biological success of X. pedator is not known. Seven forest tree species were tested as food plants for A. mylitta, and rate of pupal parasitization in both the rearing seasons were recorded and analysed. Results showed that rearing season and host plants significantly affected the rate of pupal parasitization in both the sexes. Pupal mortality was found significantly higher (14.52%) in second rearing season than the first (2.89%). Likewise, host plants and rearing seasons significantly affected length, diameter, and shell thickness of cocoons in both sexes. Out of all infested pupae, 85.59% were found male, which indicated that X. pedator chooses male spinning larva of A. mylitta for oviposition, but we could not answer satisfactorily the why and how aspect of this sex specific parasitic behaviour of X. pedator. Multiple regression analysis indicated that length and shell thickness of male cocoons are potential predictors for pupal parasitization rate of X. pedator. Based on highest cocoon productivity and lowest pupal mortality, Terminalia alata, T. tomentosa, and T. arjuna were found to be the most suitable host plants for forest based commercial rearing of A. mylitta in tropical forest areas of Uttarakhand state, where it has never been reared earlier. Sex and season specific interaction of X. pedator with its larval-pupal host, A. mylitta is a novel entomological study to find out explanations for some of the unresolved research questions on parasitic behaviour of X. predator that opens a new area for specialised study on male specific parasitization in Ichneumonidae.

Distribution Characteristics of Vascular Plants in Oenarodo Island (Goheung, Jeollanam-do) (외나로도(전라남도 고흥군)의 관속식물 분포 특성)

  • Hwang, Hee-Suk;Jung, Su Young;Jang, Jeong Won;Yang, Jong Cheol;Chang, Kae Sun;Oh, Seung Hwan
    • Korean Journal of Plant Resources
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    • v.27 no.5
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    • pp.485-500
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    • 2014
  • This study was carried out to inventory the vascular plant flora in Oenarodo Island, Jeollanam-do, South Korea in 2011. The vascular plants collected from the survey sites consisted of 574 taxa in total; 7 forms, 62 varieties, 2 subspecies, 503 species, 342 genera and 117 families. Among them, 8 taxa of Korean rare plants were found distributed in the sites, including Peucedanum hakuunense Nakai, Cymbidium macrorrhizum Lindl. and Bupleurum falcatum L. 6 taxa of Korean endemic plants such as Hepatica insularis Nakai and Carex okamotoi Ohwi were collected. In addition 101 notable taxa designated by the Ministry of Environment were collected as well. 46 taxa of naturalized plants, such as Paspalum distichum var. indutum Shinners and Veronica hederaefolia L. were recognized widely distributed in the sites.

A checklist of endemic plants on the Korean Peninsula II

  • Gyu Young CHUNG;Hyun-Do JANG;Kae Sun CHANG;Hyeok Jae CHOI;Young-Soo KIM;Hyuk-Jin KIM;Dong Chan SON
    • Korean Journal of Plant Taxonomy
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    • v.53 no.2
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    • pp.79-101
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    • 2023
  • Following recent taxonomic, distributional, and nomenclatural revisions, an updated checklist of endemic plants on the Korean Peninsula is needed. This study provides an updated checklist of vascular plants endemic to the Korean Peninsula and describes their distribution within administrative provinces. The revised checklist includes 373 endemic taxa (304 species, six subspecies, 49 varieties, and 14 nothospecies) from 179 genera and 64 families, representing 9.5% of the total native flora of the Korean Peninsula. Asteraceae (41 taxa), Ranunculaceae (29 taxa), Liliaceae s.l. (24 taxa), and Rosaceae (22 taxa) were the most widely represented families. Compared with the most recent checklist published in 2017, 39 taxa were excluded from the checklist; one taxon was excluded because it did not have a valid published name, seven taxa were excluded because their natural habitats extended to neighboring countries, four taxa were excluded because they were treated as a rank form, and 27 taxa were excluded because they had been identified as heterotypic synonyms of taxa distributed outside of the Korean Peninsula. Fifty-two new taxa were included based on the literature. This checklist will help to focus conservation efforts and provide a framework for research, protection, and policy implementation related to these endemic taxa.