• 한국제4기학회지
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• 제3권1호
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• pp.47-54
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• 1989

현세 반담수와 염수습지 퇴적층에 함유된 황철석 ($FeS_2$)의 함량이 담수습지 퇴적층에서보다 상대적으로 많은 것으로 나타났다. 일본 히로시마 삼각주 퇴적층에서의 황철석 유황($FeS_2$-S)의 함량차이의 이유는 초기 현세동안에 고 해수면(palaeo-sea level)의 위치가 수백년 동안 같았으며 또한 배수가 잘 되지않은 염수습지가 현재의 평균해수면 보다 27m~28m 낮은 위치에 발달하였음을 지시한다.

• Biotechnology and Bioprocess Engineering:BBE
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• 제11권1호
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• pp.80-83
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• 2006

Allergy, meaning 'heightened reactivity' of a host on being exposed to an antigen, is an immediate reaction which included anaphylaxis following contact with an antigen. An anaphylatic reaction is caused by the release of pharmacological mediators, like histamine, from mast cells. The potential anti-allergic activities of 27 seaweed and 19 salt marsh extracts collected from the coast of Korea were tested against the inhibition of histamine release in rat peritoneal mast cells (RPMCs). Among them, three salt marsh plants (Persicaria lapathifolia, Ixeris tamagawaensis, and Salsola komarovil) significantly showed more than 75% of inhibition of the histamine release at a concentration of $100{\mu}g/mL$, and also three salt marsh (Messerschmidia sibirica, Rosa rugosa, and Portulaca oleraceae) and three seaweed (Colpomenia bullosa, Derbesia marina, and Sargassum thunbergil) extracts exhibited moderately inhibition effects when compared to the control.

• Journal of Ecology and Environment
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• 제35권2호
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• pp.123-129
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• 2012

Salt marsh is an important transitional zone among terrestrial, riverine, and marine ecosystems and is a productive habitat that interacts extensively with adjacent landscape elements of estuarine and coastal ecosystems. Nowadays, in addition to various human activities, a variety of natural processes induce changes in salt marshes. This study aims to provide background information to restore disturbed salt marshes and to propose their ecological restoration using seed banks. The study area is a prepared area for the Gwangyang Container Port located in the southern Korea. This area was formed by accumulating mud soils dredged from the bottom of the forward sea. This land was created in a serial process of preparing the Gwangyang container port and the salt marsh was passively restored by seeds buried in mud soil dredged from seabed. As a result of stand ordination based on vegetation data collected from the land, stands were arranged according to tolerance to salinity in the order of $Suaeda$ $maritima$, $Salicornia$ $europaea$, and $Phragmites$ $communis$ communities on the Axis 1. Landscape structure of the projected area was analyzed as well. Edges of the projected area were divided from the marginal waterway by the dike. Four types of vegetation appeared on the dike: $Alnus$ $firma$ plantation, $Robinia$ $pseudoacacia$ plantation, $Lespedeza$ $cyrtobotrya$ plantation, and grassland. In the more internal areas, two types of vegetation sequences appeared: $Aster$ $tripolium$ community-$Suaeda$ $glauca$ community-$Salicornia$ $europaea$ community sequence and $Aster$ $tripolium$ community-$Suaeda$ $maritima$ community-$S.$ $europaea$ community sequence. Mixed community showed the highest species diversity (H' = 0.86) and $S.$ $europaea$ community showed the lowest (H' = 0.0). Evenness is the highest in Mixed community (J' = 2.26) and the lowest in $S.$ $maritime-S.$ $europaea$ community (J' = 0.0). Several plant communities were successfully established on the land created by mud soil dredged from the bottom of Gwangyang Bay. Moreover, community diversity in this area approached a similar level with those from other studies involving natural salt marshes. Therefore, restoration effect based on community diversity obtained in our study can be evaluated as a successful achievement. In this respect, although most salt marshes in Korea and other places worldwide have been destroyed or disturbed by excessive land use, feasibility of seed bank as a restoration tool is greatly expected.

• 한국환경생태학회지
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• 제26권6호
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• pp.911-922
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• 2012

본 연구는 낙동강 하구역 연안 사주섬 식생의 발달과 분포 특성을 규명하고자 시행하였다. 총 118개의 식생자료를 획득되었다. 좌표결정법에 의해 식물종과 환경요소들 간의 관계를 규명하였으며, 이를 위해 RIM 등의 프로그램을 이용하였다. 총 12개의 식물군락이 구분되었으며, 건생형과 습생형으로 대분류 되었다. 이들 식물군락은 사주와 염습지를 대표하는 하는 식생형으로 건생형은 해송군락, 순비기나무군락, 좀보리사초군락, 띠군락, 물억새군락, 갯메꽃군락, 습생형은 개수양버들-산조풀군락, 갈대-산조풀군락, 쇠보리-갈대군락, 갈대군락, 새섬매자기군락, 나문재-칠면초군락 등으로 구분되었다. 공간적으로 건생형 초본과 염습지의 갈대군락 및 새섬매자기군락이 가장 넓게 분포하고 있었다. 해안 사주의 대부분은 갈대군락이 대상으로 분포하며, 해안가에서는 새섬매자기군락이 관찰되었다. 현존식생도에서 가장 넓은 면적을 구성하는 식생유형은 새섬매자기군락, 염습지 갈대군락, 건생초원식생이다. 대부분의 사주섬 가장자리에는 염습지 갈대군락이 대상으로 분포하며, 그 외곽에 새섬매자기군락이 발달하고 있다. 해안 사구식생과 염습지 식생은 각각 말단사주섬의 전방과 후방 지역에 분포하였다.

• 식물분류학회지
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• 제39권4호
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• pp.264-276
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• 2009

본 연구는 한반도산 염생식물 분포를 밝히기 위해 해안 염습지와 사구 95지역을 조사하였다. 연구결과 남한의 해안과 섬지역 등에서 21과 44속 57종 4변종 1품종 등 62 염생식물이 기록되었다. 이 중 33분류군은 사구에 자라며, 나머지 29분류군은 염습지에 자라는 식물이다. 61지역이 조사된 서해안에는 58분류군이 분포하였으며, 이들 중 염습지에서는 나문재, 칠면초, 갈대, 갯잔디, 천일사초가, 사구에서는 수송나물, 갯완두, 갯길경, 갯메꽃이 많이 발견되었다. 한편 15지역이 조사된 남해안에는 서해안 보다 적은 45분류군이 분포하였다. 13지역이 조사된 동해안에는 44분류군이 분포하였으며, 흔히 발견된 식물은 수송나물, 갯완두, 갯메꽃으로 모두 사구식물이다. 해란초는 한반도에서는 동해안에서만 조사되었다. 6 지역이 조사된 제주도에는 30분류군이 분포하였다. 해녀콩은 국내에서는 제주도에서만 발견되었다. 한국산 염생식물 중 약 절반은 12종의 명아주과, 12종의 벼과, 7종의 국화과 등 3과에 속하였다.

• Journal of Ecology and Environment
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• 제29권4호
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• pp.361-364
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• 2006

The objective of the current study was to characterize and apply multiple regression model relating to vegetation values of the plant species over salt marshes. For each salt marsh community, vegetation and soil variables were investigated in the western coast and the southern coast in South Korea. Osmotic potential of soil and $Cl^-$ content of soil as independent variable had positive and negative influences on vegetation values. Multiple regression model showed that vegetation values of 14 coastal plant communities were determined by pH of soil, osmotic potential of soil and sand content. The multiple regression equation may be applied to the explanation of distribution and abundance of plant communities with exiting ordination plots.

• Journal of Ecology and Environment
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• 제44권3호
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• pp.162-177
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• 2020

Background: Ecologists have achieved much progress in the study of mechanisms that maintain species coexistence and diversity. In this paper, we reviewed a wide range of past research related to these topics, focusing on five theoretical bodies: (1) coexistence by niche differentiation, (2) coexistence without niche differentiation, (3) coexistence along environmental stress gradients, (4) coexistence under non-equilibrium versus equilibrium conditions, and (5) modern perspectives. Results: From the review, we identified that there are few models that can be generally and confidently applicable to different ecological systems. This problem arises mainly because most theories have not been substantiated by enough empirical research based on field data to test various coexistence hypotheses at different spatial scales. We also found that little is still known about the mechanisms of species coexistence under harsh environmental conditions. This is because most previous models treat disturbance as a key factor shaping community structure, but they do not explicitly deal with stressful systems with non-lethal conditions. We evaluated the mainstream ideas of niche differentiation and stochasticity for the coexistence of plant species across salt marsh creeks in southwestern Denmark. The results showed that diversity indices, such as Shannon-Wiener diversity, richness, and evenness, decreased with increasing surface elevation and increased with increasing niche overlap and niche breadth. The two niche parameters linearly decreased with increasing elevation. These findings imply a substantial influence of an equalizing mechanism that reduces differences in relative fitness among species in the highly stressful environments of the marsh. We propose that species evenness increases under very harsh conditions if the associated stress is not lethal. Finally, we present a conceptual model of patterns related to the level of environmental stress and niche characteristics along a microhabitat gradient (i.e., surface elevation). Conclusions: The ecology of stressful systems with non-lethal conditions will be increasingly important as ongoing global-scale climate change extends the period of chronic stresses that are not necessarily fatal to inhabiting plants. We recommend that more ecologists continue this line of research.

• The Korean Journal of Ecology
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• 제6권3호
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• pp.167-176
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• 1983

Species composition, life form, biomass and soil properties of the halophyte communities were investigated from July to September, 1982. At the reclaimed land of Sanho-ri, sand dune of Jido, salt marsh of Suncheon Bay, and Somjin River estuary of Baealdo, species numbers were 26, 14, 13 and 7, dominant species were Salicornia herbaceae, Carex pumila and Suaeda japonica, respectively. Species composition of the 4 investigated areas was 13 families, 25 genera and 39 species, and of them, 10 families, 21 genera and 24 species were attributed to halophytes. Out of 22 life forms, the representative for Jido was $ G-D_4-R_1-3-e.t$and those for the other sites were Th-G4-R5-e. Above ground biomass of all species for Sanho-ri, Jido, Suncheon Bay and Baealdo were 441.3, 202.0, 150.7 and 353.3 g.dw/m2 and the ratios of above ground biomass halophytes to all species were 93.5, 92.7, 90.8 and 100%, respectively. The leading dominant species formed a continuum according to the salt gradiant. The similarity between Baealo and Suncheon Bay was relatively high, and Jido was quite different from the others in species composition. Aster tripolium was stenohaline and appeared at the low salt concentration, but Suaeda maritima and Suaeda asparagoides were duryhaline and occured at the relatively high salt concentration.

• 환경생물
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• 제18권3호
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• pp.337-345
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• 2000

해안생태공원 조성이 추진중인 인천광역시 논현동 일대 염습지의 식물상 및 식생을 1999년 6월부터 2000년 6월까지 조사하였다. 이 지역에는 소래포구의 조간대를 따라 발달한 자연염습지와 함께 조수가 차단된 폐염전이 있다. 이 지역에서 14종의 염생식물이 조사되었는데, 그중 해흥나물이 가장 많이 분포하고 있었으며, 그밖에 퉁퉁마디, 비쑥, 갯개미취 등도 많이 관찰되었다. 폐염전에서 관찰된 염생식물의 종류는 자연염습지에서 조사된 것과 매우 유사하였다. 그러나, 폐염전과 자연염습지 사이의 제방 지역은 염습지 보다 다양한 종이 자라고 있었는데, 귀화식물도 21종이 관찰되었다. 자연염습지의 식생은 해흥나물-비쑥군집과 해흥나물군집으로 구성되어져 있으며 지역에 따른 큰 차이는 없었다. 한편, 폐염전에서는 해흥나물-퉁퉁마디, 나문재-해흥나물, 갈대-애기부들, 갈대군집 등 다양한 군집이 조사되었다. 식생상관과 종다양도에 기초하여 조사지역을 식생양호지역, 인간활동에 따른 교란지역, 식물고사지역 등의 세 구역으로 나눌 수 있었으며, 해안생태공원 조성에 따른 각 구역의 보존대책을 제시하였다.

• The Korean Journal of Ecology
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• 제12권1호
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• pp.1-7
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• 1989

낙동강 하구 옥류등에 형성되어 있는 갈대, 천일사초 및 갯잔디 군락의 실소와 린의 동태를 조사하였다. 실소와 린의 흡수량 및 현존량은 식물군락의 물질생산과 단위 무게당 이들 무기영양소의 함량이 달랐다. 실소의 연 흡수량은 갈대, 천일사초, 갯잔디 군락에서 각각 224, 111 그리고 156 kg/ha이었고, 린의 연 흡수량은 각각 22, 29 그리고 21 kg/ha이었다. 염습지의 관속식물 군집은 다량의 질소와 인을 흡수하기 때문에 연안수의 당영양화를 일시적으로 경감시키는 역할을 할 수 있는 것으로 생각되었다.