• Title/Summary/Keyword: 습지 식물

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Photosynthetic Characteristics and Primary Production by Phytoplankton with Different Water Quality of Influent in Open Waters of Constructed Wetlands for Water Treatment (수질정화용 인공습지 개방수역에서 유입수질에 따른 식물플랑크톤의 광합성특성 및 유기물생산력)

  • Choi, Kwang-Soon;Hwang, Gil-Son;Kim, Dong-Sub;Kim, Sea-Won;Kim, Ho-Joon;Joh, Seong-Ju;Park, Je-Chul
    • Korean Journal of Ecology and Environment
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    • v.40 no.1
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    • pp.61-71
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    • 2007
  • The photosynthetic characteristics and primary production by phytoplankton in open waters of two wetlands (the Banwol and the Donghwa wetland) of Sihwa Constructed Wetland with different water chemistry were investigated to provide the information for the wetland management considering the water treatment efficiency. During the study period (from March to October, 2005) the primary productivity in open waters ranged from 481 to 11,275 mgC $m^{-2}$ $day^{-1}$, which is very high compared with the eutrophic level of 600mgC $m^{-2}$ $day^{-1}$. From the analysis of the photosynthesis-irradiance (P-I) model parameters, the photosynthetic characteristics may be affected by different concentration and ratio of nutrient (N and P) between two wetlands. Assimilation number (AN) was higher in the Donghwa wetland (average AN: 8.5gC $gChl^{-1}$ $hr^{-1}$) with high P and low N/P ratio than the Banwol wetland (average AN: 5.8gC $gChl^{-1}$ $hr^{-1}$) with high N and high N/P ratio. This result indicates that AN may be concerned with phosphorus than nitrogen and low NIP ratio. Positive correlation (R=0.81) was observed between the initial slope and AN, implying that AN was high in case of phytoplankton having more active photosynthesis ability under low light. On the other hand, maximum photosynthesis (Pmax) was related positively with chlorophyll a concentration showing correlation coefficient of 0.47. In this study, considering the high primary production through phytoplankton photosynthesis in open waters of Sihwa Constructed Wetland, the produced organic matter by phytoplankton may affect the water quality within wetland and its efficiency of water treatment. Also, the photosynthetic characteristics may be affected by different nutrient enrichment (especially phosphorus) of wetlands. This study suggests that the production by phytoplankton and its characteristics in open water of constructed wetland for water treatment should be considered to improve the removal efficiency of organic matter.

Vascular Plants of Hwapocheon Wetland Protected area in Gimhae (김해 화포천 습지보호지역의 관속식물상)

  • Yun-do, Hwang;Sang-jun, Han
    • Journal of Wetlands Research
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    • v.26 no.1
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    • pp.92-113
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    • 2024
  • The Purpose of this study were to present the basic data for conservation and management of wetland ecosystem by surveying the characteristics of vascular plants distributed in Hwapocheon wetland protected area. The results are as follows. The numbers of vascular plants were summrized as 339 taxa including 81 familices, 221 genera, 315 species, 9 subspecies and 12 varieties and 2 forms. The rare plants were 7 taxa including Aristolochia contorta, Hydrocharis dubia and so on. The floristic target species were 32 taxa including 17 taxa of grade I, 7 taxa of grade II, 4 taxa of grade III, 2 taxa of grade IV and 2 taxa of grade V. The invasive alien plants were 66 Rumex crispus, Oenothera biennis, Veronica arvensis and so on. The ecosystem disturbing species were 11 taxa including Humulus scandens, Ambrosia artemisiifolia, Ambrosia trifida, Lactuca seriola, Symphyotrichum pilosum and so on. The hydrophytes were 29 taxa including 16 taxa of emergent plants, 3 taxa of submerged plants, 4 taxon of free-floating plant 6 taxa of floation-leaved plants.

Community Structure and Vegetation Succession Tendency of Outstanding Forest Wetlands in Goheung-gun, Jeollanam-do (전라남도 고흥군 우량 산림습원의 군락구조 및 천이경향)

  • Jun Hyuk Lee;Jeong Eun Lee;Jun Gi Byeon;Jong Bin An;Ho Jin Kim;Chung Weon Yun
    • Journal of Wetlands Research
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    • v.26 no.1
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    • pp.51-61
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    • 2024
  • This study was conducted to identify the community structure of two outstanding forest wetlands in Goheung-gun, Jeollanam-do, and to investigate their succession trends. vegetation survey was conducted using the Z-M phytosociological method From May to October, 2023, and based on this data, the Actual vegetation map was created by categorizing communities. This resulted in the classification of six communities. namely, Rhynchospora faberi community, Alnus japonica-Molinia japonica community, Ilex crenata-M. japonica community, M. japonica community, A. japonica-Pinus densiflora community and A. japonica community. The results of each layer's importance value (IV) analysis results indicated that in the R. faberi community, that of R. faberi, an obligate wetland plant, was high. In the subtree and shrub layers of the other five communities, A. japonica, a key species in wetland ecosystems, and Pinus densiflora and I. crenata, both obligate upland plants, exhibited higher IV. In the herb layer, the IV of M. japonica, a representative species of intermediate wetlands, was notably high. The results of classifying all observed plant species in the survey area based on their wetland preference revealed that in the R. faberi community, the occurrence rate of obligate wetland plants was high. However, in the other five communities, the occurrence rate of obligate upland plants was predominantly observed. Excluding the R. faberi community, in the other five communities constituting the outstanding forest wetlands, the occurrence rate of upland plants among the forest plants was high. It was observed that M. japonica which typically appears during the transition of wetlands to drier stages, was flourishing, indicating that the wetland was undergoing vegetation succession and terrestrialization.

Hydrophytes Flora of Seven Swamp Inland in Korea (우리나라 7개 내륙습지의 수생식물 분포상)

  • Kim, Yoo Sun
    • FLOWER RESEARCH JOURNAL
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    • v.17 no.1
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    • pp.52-61
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    • 2009
  • This study was conducted, to understand floras and circumstances of Korean swamp inland. The floras of 7 swamp inland were 32 families, 49 genus and 69 species. They are accounted for 23% with 16 species of Cyteraceae, one group of annual herbaceous plants, and 6 groups of perennial herbaceous plants (Scirpus tabernaemontani, Phramites communis, Zizania latifolia, Persicaria thunvergiicsiebold, Typha latifolia, Juncus krameri, and Juncus effusus). The plants of Scirpus tabernaemontani, Phramites communis, Zizania latifolia, Persicaria thunvergiicsiebold, Typha latifolia, Juncus krameri, and Potagometon distinctus turnes out a dominant species.

Vegetation of wetland in Mueuido(Incheon-city) (무의도(인천시)의 습지 식생)

  • Paik, Weon-Ki
    • Korean Journal of Plant Resources
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    • v.23 no.2
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    • pp.197-205
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    • 2010
  • This study was carried out to investigate the flora and vegetation in wetland of Mueuido. The forest vegetation was classified into 2 communities group (Utricularia bifida-Eriocaulon sikokianum and Alnus japonica) and 6 communities (Rhynchospora chinensis, Phragmites communis, Molinia japonica, Ischaemum crassipes, Quercus serrata and Pinus rigida-Miscanthus sinesis). Resources vascular plants were composed of 30 families, 53 genera, 50 species and 8 varieties, totaling 58 taxa. Among the investigated resources plants, Utricularia bifida and Utricularia racemosa were rare and endangered species. The special plants based on floral region by Ministry of Environment were 5 taxa; V rank species 2 taxa, II rank species 1 taxa and I rank species 2 taxa. A naturalized plants was 1 species of totaling 290 species appeared in South Korea. The Life-form were Hydatophytes (20.7%), Geophyte (19%), Microphanerophytes (19%), Hemicryptophytes (17.2%), Nanophanerophytes (17.2%), Chamaephytes (5.2%), Therophytes (1.7%). In marsh-type wetland of Mueuido, we predict that bog-type swamp, where various type of swamp plants are distributed, is starting to be formed based on the fact that Utricularia bifida and Utricularia racemosa, insectivorous plants, are dominant and sphagnum also is found. Along with the notion, there are reportedly found serious damages around wetland by human being and we have to prepare protection plans against it.

Vegetational characteristics of abandoned paddy terraces in comparison with natural and constructed wetlands (자연습지 및 인공습지와의 비교를 통해 본 계단식 묵논습지의 식생 특성)

  • Hong, Mun Gi;Park, Hyekyung;Nam, Bo Eun;Kim, Jae Geun
    • Journal of Wetlands Research
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    • v.21 no.3
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    • pp.199-206
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    • 2019
  • To understand vegetational characteristics of abandoned paddy terraces (APTs), species composition and plant species richness of APTs were compared with those of other natural- and constructed wetlands (NWs and CWs, respectively). Based on frequency of major vegetational components, Phragmites japonicus was more common in APTs (23.9%) than NWs (10.8%) and CWs (10.8%), whereas P. australis was less frequent in APTs (18.3%) than NWs (43.1%) and CWs (35.4%). Typha orientalis was common only in APTs (19.7%), whereas T. angustifolia was relatively common in NWs (21.5%) and CWs (32.3%). In addition, some wetland obligate species such as Leersia japonica, Oenanthe javanica, and Sium suave were frequently found only in APTs. In particular, APTs showed higher plant species richness ($6.3{\pm}2.2\;species/m^2$) than NWs ($4.9{\pm}1.8\;species/m^2$) and CWs ($3.9{\pm}1.3\;species/m^2$). APTs exhibited not only their distinctive vegetational characteristics but also higher ecological value in terms of plant species richness. Further attention on APTs as valuable biotopes supporting diverse plant species and continuous effort for management and conservation are needed more.

A analysis of plant communities distribution characteristics of Boseong river wetland using ordination (서열법(ordination)을 이용한 보성강 하천 습지의 식물군락 분포 특성 분석)

  • Lee, Il Won;Kim, Kee Dae
    • Journal of Wetlands Research
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    • v.24 no.4
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    • pp.354-366
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    • 2022
  • To analyze the distribution of plant communities growing in river wetlands and the relationship between biotic and abiotic environmental factors, plant communities and environmental factors were investigated in river wetlands in the Boseong River. The Boseong River Wetland, the research site, consists of Hwapyeong Wetland, Bangujeong Wetland, and Seokgok Wetland. From June to September 2022, a plant community survey was conducted from the perspective of physiognomical vegetation, and the coverage of the emerging species followed the Braun-Blanquet scale. Plant species and the coverage of each species were recorded in the quadrant for plant community survey, and the cover of the quadrant, the total number of species, and the number of exotic species were measured as biological factors. As abiotic factors, altitude, orientation, inclination, soil texture, litter layer depth, dominant species diameter at breast height, and topography were recorded. In a total of 50 square plots, the most common Salix koreensis and Phragmites japonicus communities were found, and the community with the highest Shannon species diversity index was Phragmites japonicus-Echinochloa caudata community. As a result of ordination analysis by DCCA, the most significant clusters were separated according to topographic factors such as leeve, leeve slope, upper floodplain, lower floodplain, upper waterside, middle waterside, lower waterside, river island and opem water. As rare plants that need to be preserved in river wetlands, Hydrocharis dubia and Penthorum chinense were found in lower waterside, and it was found that the management of the river in the reservoir is necessary in line with the topographical distribution of ecosystem-disrupting plants, such as Paspalum distichum var. indutum.

자연학습장으로 활용을 위한 제주시 지역 습지의 식물상에 관한 연구

  • O, Sun-Ja;Jin, Guk-Rim;Go, Seok-Chan
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2008.11a
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    • pp.170-172
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    • 2008
  • 28개소의 습지를 대상으로 총 131종이 관찰되었으며, 그 중 수생식물은 총 71종으로 전체식물의 54.2%에 해당한다. 식물 종다양성의 측면에서 보면 반못, 정물, 모사니물, 돌개기못, 웃못, 용수저수지 등이 높게 나타났다. 그리고 정물과 용수저수지를 비롯하여 모사니물, 돌개기못, 웃못, 연화못 등에는 식물의 생활형이 5$\sim$6군으로 다양하게 분포하였다. 수생식물의 유형은 정물, 모사니물, 용수저수지, 반못, 돌개 기못, 몰순이못, 웃못 등 23개소에서 4군 또는 5군이 출현하였다. 이러한 결과를 토대로 정물, 용수저수지, 돌개기못, 모사니물, 웃못 등은 식물의 종다양성이 높을 뿐만 아니라 다양한 생활형의 식물이 분포하고, 수생식물의 유형이 다양하고 수생식물의 종수 또한 많아 습지에 대한 환경 교육의 기본적인 지식의 습득과 자연 관찰을 위한 자연학습장으로의 활용이 가능할 것으로 보인다. 그리고 이들 수생식물들 중에는 보호대상 식물인 물부추, 좀어리연꽃, 통발, 흑삼릉 등이 출현하고 있어 이에 대한 보존대책이 필요하다고 생각된다.

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Flora of Sumeunmulbaengdui wetland in Jeju-do, Korea (숨은물뱅듸 습지(제주도)의 식물 다양성)

  • Ko, Sung Chul;Son, Dong Chan;Park, Beom Kyun
    • Korean Journal of Plant Taxonomy
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    • v.44 no.3
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    • pp.222-232
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    • 2014
  • The flora of vascular plants in Sumeunmulbaengdui wetland located in Hallasan National Park was surveyed 9 times from September, 2010 to May, 2014. This survey resulted in 236 taxa in total composed of 202 species, 2 subspecies, 27 varieties and 5 forms of 148 genera under 69 families. They were categorized by their life forms into 8 groups of 37 megaphanerophytes, 26 nanophanerophytes, 2 epiphytes, 3 chamaephytes, 84 hemicryptophytes, 33 geophytes, 21 hydrophytes, 30 therophytes. Among them, 10 taxa of Korean endemic plants and 9 taxa of rare and endangered plants were included. In addition, the floristic regional indicator plants were 43 taxa comprised of 3 taxa of grade V, 7 taxa of grade IV, 12 taxa of grade III, 8 taxa of grade II and 13 taxa of grade I. 2 species of alien plants, Erechtites hieracifolia Raf. and Taraxacum officinale Weber were found. Sustainable interest and protective measures to Sumeunmulbaengdui wetland are required, since this area is comparatively larger in size and higher in plant diversity than other Ramsar wetlands in Jeju-do Province.

Study of vascular hydrophyte vegetation in Imjado, Shinangun, Korea (신안군 임자도의 관속수생식물의 식생에 관한 연구)

  • Yang, Hyo-Sik
    • Journal of Wetlands Research
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    • v.10 no.1
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    • pp.31-37
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    • 2008
  • A study of the vascular hydrophyte communities was undertaken in the wetlands of Imjado, Shinangun, from March to November, 2006. As a result, the vegetation was divided into 15 communities. Among them, emergent hydrophytes consisted of 9 communities, including Phragmites communis community, Typha angustata community, Paspalum disticum var. indutum community, Sparganium erectum community, Oenanthe javanica community, Echinochloa crusgalli var. crusgalli community, Juncus effusus var. decipiens community, Aneilema keisak community and Persicaria thunbergii community, floating hydrophytes 1 community Trapa japonica community, free-floating hydrophytes 2 communities including Lemna paucicostata community and Spirodela polyrhiza community, and submergent hydrophyte 2 community, including Myriophyllum verticillatum community and Potamogeton distinctus community. These results were considered that the wetland of Imjado was characterized by the typical structure of aquatic plant ecosystem.

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