• Title/Summary/Keyword: forest biodiversity

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Assessment of Diversity of Forest Structure in Gunja-Dong, Siheung City, Korea (시흥시 군자동 일대 산림 구조의 다양성 평가)

  • Ryu, Ji-Eun;Kang, Jong-Hyun;Lee, Dong-Kun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.14 no.1
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    • pp.23-33
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    • 2011
  • Habitats loss and fragmentation are major threats to biodiversity. There are various kinds of environmental assessment have been developed for various problems to solve. Yet, there are no well-developed methods for quantifying and predicting about biodiversity. To achieve a sustainable conservation for biodiversity, the structural diversity of forest must be assessed by proper indexes. This study aim to quantitatively assess the diversity of forest structure as habitats and results of the verification by bird survey for objective presentation of evidence. As a result of literature review, some indexes were selected as potential prediction tools for biodiversity; area of patch, area of core regions, shape of patch and average age of stand. The assessment results were estimated by monitoring of birds for accuracy verification and the results were almost in agreement with each others. But, 1 and 2 level of forests were showed ambiguous results. Certainly, this study was limited in some valuation indexes on landscape scale. Further studies should be considered that different environmental factors such as land use, disturbances by human and vegetation index. Also, we expect that the additional monitoring of birds should give rise to the result which is improved assessment results.

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.

Distribution of Vascular Plants in Cheonbongsan and Its Adjacent Regions (천봉산과 그 일대의 식물상 연구)

  • Lee, You-Mi;Choi, Hyeok-Jae;Lee, Hye-Jeong;Park, Su-Hyun;Choi, Hyeong-Seon
    • Korean Journal of Environment and Ecology
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    • v.24 no.5
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    • pp.519-538
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    • 2010
  • The vascular plants of Cheonbongsan(608m) and its adjacent regions, located in Boseong-gun, Jeollanam-do were surveyed from March to October 2005. The vascular plants collected 4 times were consisted of total 511 taxa; 104 families, 307 genera, 446 species, 3 subspecies, 56 varieties and 6 formas respectively. Among them, 12 taxa Korean endemic plants and 8 taxa of Korean rare plants were investigated in addition to 46 taxa of specially designated plants announced by the Ministry of Environment. The naturalized plants were 38 taxa, therefore naturalized ratio was 7.4%, higher than naturalized ratio average in Jeollanam-do.

Study on the current status of naturalized plants in South Korea (한국내 귀화식물의 현황과 고찰)

  • Lee, You-Mi;Park, Soo-Hyun;Jung, Su-Young;Oh, Seung-Hwan;Yang, Jong-Cheol
    • Korean Journal of Plant Taxonomy
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    • v.41 no.1
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    • pp.87-101
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    • 2011
  • Naturalized plants were identified and recorded in South Korea based on field surveys and related literatures. These plants consisted of 321 taxa in total, belonging to 40 families, 175 genera, 302 species, 15 varieties and 4 forms. Among the plants the family Compositae was dominant containing 68 taxa (21.2% of the total population) and Poaceae with 62 taxa (19.3%) successively. Most of the plants were herbs and only 7 taxa trees. 221 taxa (68.8%) appeared to have invaded the country during the third period (1964-2010). 41.8% (134 taxa) of the total population were originated from Europe. These invasive plants were assessed with the degree of naturalisation which was categorized as I-V types.

Two unrecorded species from Korea: Anthoxanthum glabrum (Trin.) Veldkamp and Saccharum arundinaceum Retz. (Poaceae) (한국 미기록 벼과식물: 애기향모(Anthoxanthum glabrum (Trin.) Veldkamp)와 큰개사탕수수(Saccharum arundinaceum Retz.))

  • Jung, Su-Young;Lee, You-Mi;Park, Soo-Hyun;Yang, Jong-Cheol;Chang, Kae-Sun
    • Korean Journal of Plant Taxonomy
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    • v.41 no.1
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    • pp.81-86
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    • 2011
  • Two unrecorded Poaceae species, Anthoxanthum glabrum and Saccharum arundinaceum, are herein newly reported from Korea. Anthoxanthum glabrum (Ae-Gi-Hyang-Mo) was found in Ansan-si, Gyeonggi-do, Sangju-si, Gyeongsangbuk-do and Hwasun-gun, Jeollanam-do. It is distinguished from A. nitens by the length of its spikelet, glume and lemma. Saccharum arundinaceum (Keun-Gae-Sa-Tang-Su-Su) was found in Mapo-gu, Gangnam-gu, Seoul, and Hwasun-gun, Jeollanam-do. It is distinguished from S. spontaneum by hair on the lower glume and according to the length of the hair on the callus of its spikelet. In this study, a description and illustrations of the species and photos of the habitat are provided.

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%.

Newly Recorded Naturalized Species in Korea, Bidens polylepis and Saponaria officinalis (한국 미기록 귀화식물인 노랑도깨비바늘(Bidens polylepis S.F.Blake)과 비누풀(Saponaria officinalis L.))

  • Lee, You Mi;Lee, Hye Jeong;Park, Su Hyun;Choi, Hyung Sun;Oh, Seung Hwan
    • Korean Journal of Plant Taxonomy
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    • v.40 no.4
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    • pp.240-246
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    • 2010
  • Two newly naturalized species were recorded from Incheon (Youngjong-do) and Ulsan. Among them, Bidens polylepis S.F. Blake (Asteraceae) was widespread and was found in the following locations: Unbuk bridge, Unbuk-dong, Jung-gu in Incheon, and Chuiseosan, Banggi-ri, Samnam-myeon as well as a Saemmul mountain cabin on Jaeaksan, Sangbuk-myeon in Ulju-gun, Ulsan. Bidens polylepis can be distinguished from congeneric species by its larger ray-flowers. The Korean name of Bidens polylepis was newly formulated based on the characteristic of its yellow ray-flowers and on the Korean name of the genus Bidens (Asteraceae). The other species, numerous populations of Saponaria officinalis L. (Caryophyllaceae) were found in two areas in Jeotgae village, Unseo-dong, Jung-gu, Incheon. Saponaria officinalis can be distinguished from congeneric species in the family by two features, shallow calyx teeth and a petal with appendages at the base of the blade.

First record of Achillea alpina L. subsp. pulchra (Koidz.) Kitam. (Asteraceae) in Korea (한국 미기록 식물: 갯톱풀(국화과))

  • Sun, Eun-Mi;Im, Hyoung-Tak;Kim, Hyuk-Jin;Son, Dong Chan;Lee, Kang Hyup;Choi, Kyung
    • Korean Journal of Plant Taxonomy
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    • v.47 no.2
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    • pp.112-118
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    • 2017
  • Achillea alpina L. subsp. pulchra (Koidz.) Kitam., an unrecorded subspecies belonging to the genus Achillea of Asteraceae, was discovered and is illustrated here. It is known as an endemic species of Hokkaido, Japan, but we discovered it along the seashore at Uljin in Gyeongsangbuk-do, Korea. Having a relatively equally serrate or dentate leaf margin and sparsely villous involucres, this subspecies is easily distinguished from its related taxa. Based on its habitat, it was termed Gaet-top-pul in Korean. We provide a description, illustrations, photographs and a key of related taxa in Korea.

The Analysis of Amphibia Biodiversity and Habitat in the Moak Provincial Park (모악산 도립공원의 양서류 다양성 및 서식환경 분석)

  • Chung, Kyu-Hoi;Shim, Jae-Han;Song, Jae-Young
    • Korean Journal of Environmental Biology
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    • v.19 no.4
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    • pp.278-281
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    • 2001
  • Ecological measurement and biological environment of the Moak Provicial Park surveyed based on the habitat; deciduous broad leaved forest (Quercus mongolica variabilis-Pinus densiflora, Capinus tschonoskii, Quercus Mongolica, Quercus acutissima-Pinus densiflora, and Quercus variabilis), coniferous forest (Pinus densiflora), plantation forest (Pinus rigida), and the other place (pond, lake, rice field, stream, and river). Totally, 1 orders, 4 families, 8 species of amphibians were found at Mt. Moak provincial park. Biodiversity indices of studied region were as follow; richness was 1.270, diversity was 1.775, and evenness was 0.853 in amphibians. 42.1% of amphibians were found in deciduous broad leaved forest, 11.3% in coniferous forest, 1.6% in plantation forest, and 45.0% in the other region.

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A Checklist of Mushrooms of Dong Hua Sao National Biodiversity Conservation Area (DHSNBCA) of Lao-PDR

  • Lee, JongKyu;Kim, DaeHo;Nguyen, Manh Ha;Bae, Young Jun;Manilak, Philaxay
    • Journal of Forest and Environmental Science
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    • v.37 no.2
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    • pp.163-167
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    • 2021
  • Mushroom survey and collection were conducted in the Dong Hua Sao National Biodiversity Conservation Area (DHSNBCA), which is located about 30 km east of Pakse and about 10 km south of the town of Paksong, Champasak Province of Lao-PDR, from from at the early July to October in 2019. During this periods, mushroom specimens were collected from 6 different locations, and then they were identified and classified into 103 species, 74 genera, 37 families, 15 orders and 6 classes by morphological and molecular analyses. The mushrooms belongs to Ascomycota were classified into 10 species, 6 genera, 4 families, 3 orders and 2 classes, while those belongs to Basidiomycota were classified into 92 species, 67 genera, 32 families, 11 orders, and 3 classes, respectively. In addition, 1 species of Myxomycota was also identified. Among these mushrooms, the most species-rich families are Marasmiaceae (17.3%), Polyporaceae (13.1%), Mycenaceae (8.9%), Agricaceae (8.3%), Xylariaceae (6.5%), Auriculariaceae (4.8%), Ganodermtaceae (3.6%), Dacrymycetaceae (3.0%), Meruliaceae (3.0%), Russulaceae (3.0%) and comprised 71.4% of the total specimens identified.