• 한국환경생태학회지
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• 제21권3호
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• pp.197-206
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• 2007

본 연구는 2000년부터 2003년까지 주요 철새도래지로 알려진 전남해안에 위치하는 연안 습지 7개 지역에 월동하는 수조류를 조사하였다. 관찰된 수조류는 총 90종 857,570개체였으며, 유사한 생태적 특징을 가지는 분류군별로 나누어 볼 때 총 17개 분류군이 관찰되었다. 이 중에서 주로 수면이나 수변에 서식하는 수조류는 8개 분류군이었다. 만 지역과 호수 지역 중 만 지역을 이용하는 비율이 높은 분류군은 도요류, 갈매기류, 고니류의 순이었다. 호수 지역을 이용하는 비율이 높은 분류군은 수면성오리류, 논병아리류, 기러기류의 순이었다. 결과적으로 만과 호수지역을 이용하는 분류군의 유형에 차이가 있었다. 종 구성을 통한 유사도지수 CCs와 종과 개체수를 고려한 유사도지수 Ro를 이용하여 UPGMA군집분석을 한 결과 7개 지역 중 가장 독특한 종의 구성을 가지는 지역은 순천만 지역이었으며, 만 지역과 호수 지역이 서로 다른 종과 개체수 구성을 가졌다. 최대합계수에 의한 지수의 순위를 종합하여 지역의 중요성을 평가한 결과 순천만이 1위로 가장 중요도가 높았다. 다음으로 보성-득량만, 강진만, 고천암호, 영암호와 금호호, 영산호 순으로 중요도가 낮게 평가되었다. 전체적으로 만 지역이 간척호수 지역에 비해 상대적으로 높은 중요도를 나타냈다.

• 한국산림과학회지
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• 제101권2호
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• pp.195-202
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• 2012

본 연구는 숲속 환경대기에서 모노테르펜류(${\alpha}$-Pinene, camphene, sabinene, ${\beta}$-pinene, myrcene, terpinolene, limonene, 1,8-cineol, linalool, camphor)의 농도분포, 숲속 대기의 청정도 및 공기음이온 분포를 파악하기 위해 전남도 내 5개 유명 숲을 대상으로 3 계절(봄, 여름, 가을) 동안 수행하였다. 4 시간 평균농도 기준으로 대나무가 우점하고 있는 죽녹원지점에서 ${\beta}$-pinene+myrcene이 958 pptv, 우드랜드와 순천만에서 ${\alpha}$-pinene(524 pptv)과, limonene(445 pptv)이 각각 높은 농도로 나타났다. 계절별로는 우드랜드와 선암사는 봄, 죽녹원과 순천만은 여름에 가장 최고치를 보였다. 대기환경기준물질 농도는 환경정책기본법의 환경기준보다 매우 낮은 농도로 나타났다. 공기음이온은 지점별로 공기 1 mL당 최고 400~3,000개로 조사되었다. 모노테르펜과 공기음이온사이에 유의한 상관은 나타나지 않았다.

• 한국환경과학회지
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• 제26권6호
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• pp.691-710
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• 2017

This study was performed to investigate the geochemical and benthic environment of three shellfish farms in Suncheon Bay during the period of September 2014 ~ April 2015. Three sampling stations were selected; St.1 is the shellfish farm of razor clam near Jangsan area. St.2 is the shellfish farm of small ark shell near Hwapo area and St.3 is the shellfish farm of razor clam near Yongdu area. Razor clam was the dominant species at St.1, small ark shell and granulated ark shell were dominant at St.2 and St.3, respectively. Granulated ark shell inhabited St.3, although it is not cultured at that station. This station's exposure to air during the ebb tide and sediment composition likely provides the appropriate habitat for granulated ark shell species. Analysis of the number of different species showed that 8 benthos species were found to be distributed at St.1, 18 species at St.2, and 13 species at St.3. Among three stations, the highest Ignition Loss (IL), Chemical Oxygen Demand (COD) and Acid Volatile Sulfide (AVS) values were obtained from the sediment at St.2. The analysis of pore water from St.2 also showed the highest values of Total Organic Carbon (TOC), ammonia ($NH_4^+$), Dissolved Inorganic Nitrogen (DIN) and phosphate ($PO_4^{3-}$). These results are related to the fact that species dominance and richness is the highest in St.2.

• 한국습지학회지
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• 제10권3호
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• pp.9-26
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• 2008

순천만에서 갈대군락이 저토의 이화학적 특성에 미치는 영향과 갈대군락의 증가형태를 파악하기 위해 1999년과 2000년에 갈대군락의 폭을 측정하고 2007년에 갈대군락의 형성정도에 따라 3개 지역을 선정하여 깊이별 저토의 수분함량, 염분농도, 유기물함량, 황함량, 질소함량, 탄소함량 및 수소함량을 조사하였다. 갈대군락의 유무와 관계없이 육지와 멀리 격리되어 있을수록, 수로와 가까이 있을수록 저토 내 수분함량이 많고 염분도가 높았다. 또한 표층의 유기물함량은 갈대의 현존량과 비례하였지만 하층의 것은 오래된 갈대군락에서 오히려 낮았다. 황함량은 나지(0.23%)나 근래에 형성된 갈대군락(0.21%)보다 오래된 갈대군락(0.33%)에서 높았고, 탄소, 질소 및 수소의 함량은 표층에서 현저히 높고 하층에서 낮아 대체로는 유기물함량과 유사한 경향성을 보였지만 하층으로 감에 따라 감소하거나 증가하는 경향은 일치하지 않았다. 갈대군락 폭의 증가는 1999년에 $2.33{\pm}0.73m$, 2000년에 $3.65{\pm}1.64m$이었으며 연도에 따라, 군락에 따라, 방향에 따라 다양하여 일정한 경향성이 없었다. 이러한 갈대군락의 증가 특성에 의해 시간의 경과에 따라 전체적으로 원형의 군락을 이루는 것으로 생각되었다. 매해 증가한 지역에서 갈대의 밀도와 초장은 가장자리로 갈수록 감소하였다. 또한 하나의 군락에서 밀도는 방향(육지 혹은 해양)에 따른 경향성은 없었으나 초장은 북쪽 혹은 육지방향이 남쪽 혹은 해양방향보다 작은 것으로 나타났다.

• 한국환경과학회지
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• 제29권7호
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• pp.703-713
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• 2020

In this study, carbon dioxide concentration and air temperature at different elevations were observed and analyzed in the upper atmosphere of mud flat and reed beds at low tide in Suncheon Bay. The carbon dioxide concentration and air temperature sensors were mounted on the drone, and the carbon dioxide concentration and air temperature by altitude (5 m, 10 m, 20 m, 40 m) at five points in the tidal flat and reed beds were observed in the morning and afternoon. The carbon dioxide concentrations in the upper atmosphere of the tidal flat ranged from 453.0 to 460.2 ppm in the morning and 441.6 to 449.7 ppm in the afternoon. The carbon dioxide concentrations in the upper atmosphere of the reed beds ranged from 448.9 to 452.4 ppm in the morning and 446.0 to 454.4 ppm in the afternoon. The carbon dioxide concentrations in the upper atmosphere of the tidal flat was higher in the morning than in the afternoon, and the carbon dioxide concentration decreased as the altitude increased. The carbon dioxide concentration in the upper atmosphere of the reed beds was similar in the morning and afternoon at all altitudes, and the carbon dioxide concentration decreased as the altitude increased. The correlation coefficient between carbon dioxide concentration and air temperature observed in the tidal flat in the morning was -0.54 ~ -0.77, and the correlation coefficient between carbon dioxide concentration and air temperature observed in the afternoon was 0.56 ~ 0.80. The correlation coefficient between carbon dioxide concentration and temperature observed in the morning in the reed field was low, below 0.3, and the correlation coefficient between carbon dioxide concentration and air temperature observed in the afternoon was 0.35 ~ 0.77. In the upper atmosphere of the tidal flats and reed beds, the linear function was suitable for the change of carbon dioxide concentration as a air temperature, and the coefficient of determination of the estimated linear function was higher in the afternoon than in the morning. Through this study, it was confirmed that the carbon dioxide concentration in the upper atmosphere of the tidal flat and the reed beds was different, and the increase rate of carbon dioxide concentration in the upper atmosphere of the tidal flat and the reed beds was higher in the afternoon than in the morning.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2009년도 추계학술대회 논문집
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• pp.680-681
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• 2009

• 한국환경과학회지
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• 제31권9호
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• pp.767-779
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• 2022

In this study, sediment cores were sampled from tidal flats (six sites) in the west and south coastal wetlands, the blue carbon stock in the tidal flat sediments was calculated, and the blue carbon stock characteristics and influencing factors were analyzed. The sediment particle size of the west coastal tidal flats was larger than that of the south coastal tidal flats, and the organic carbon content in the south coastal tidal flats was more than twice that of the west coastal tidal flats. Blue carbon stock per unit area was 28.4~36.8 Mg/ha on the west coastal tidal flats and 69.8~89.8 Mg/ha on the south coastal tidal flats, which was more than twice higher in the south coastal tidal flats than in the west coastal tidal flats. The total amount of blue carbon stock in the tidal flats was the highest in Suncheon Bay tidal flats at 153,626 Mg, and followed by Gomso Bay tidal flats at 141,750 Mg, Hampyeong Bay tidal flats at 58,420 Mg, Dongdae Bay tidal flats at 44,900 Mg, Cheonsu Bay tidal flats at 36,880 Mg, and Jinhae Bay tidal flats at 26,205 Mg. Blue carbon stock per unit area was higher in the south coastal tidal flats, but the total amount of blue carbon stock in the tidal flats was higher in the west coast. The slope of the regression function of blue carbon stock with respect to the organic carbon content in the tidal flat sediments was estimated to be about 0.05 to 0.07, and the slope of the regression function was higher in the west coastal tidal flats than in the south coastal tidal flats.

• Journal of Ecology and Environment
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• 제37권3호
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• pp.131-137
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• 2014

To investigate the solute pattern of salt marsh plants in Suncheon Bay in Korea, plants and soil samples were collected at three sites from July to September 2011. The soil pH around the investigated species was weakly alkaline, 6.9-8.1. The total ion and Cl- content of site 1 gradually increased, while those of site 2 and site 3 were lowest in August and highest in September. The exchangeable $Ca^{2+}$, $Mg^{2+}$ and $K^+$ in the soil were relatively constant during the study period, but the soil exchangeable $Na^+$ content was variable. Carex scabrifolia and Phragmites communis had constant leaf water content and very high concentrations of soluble carbohydrates during the study period. However, Suaeda malacosperma and S. japonica had high leaf water content and constant very low soluble carbohydrate concentrations. Carex scabrifolia accumulated similar amounts of $Na^+$ and $K^+$ ions in its leaves. Phragmites communis contained a high concentration of $K^+$ ions. Suada japonica and S. malacosperma had more $Na^+$ and $Cl^-$ ions than $K^+$ ions in their leaves. Suaeda japonica had higher levels of glycine betaine in its leaves under saline conditions than C. scabrifolia and P. communis. Consequently, the physiological characteristics of salt marsh chenopodiaceous plants (S. japonica and S. malacosperma) were the high storage capacity for inorganic ions (especially alkali cations and chloride) and accumulation of glycine betaine, but monocotyledonous plant species (C. scabrifolia and P. communis) showed high $K^+$concentrations, efficient regulation of ionic uptake, and accumulation of soluble carbohydrates. These characteristics might enable salt marsh plants to grow in saline habitats.

• 한국전자통신학회논문지
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• 제14권6호
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• pp.1197-1206
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• 2019

순천만은 매우 중요한 자연자원으로 환경오염으로부터 이를 보호하기 위한 노력들이 이루어지고 있다. 순천만 갯벌에 서식하는 생물들을 주기적으로 관찰하여 환경의 변화를 모니터링하는 사업이 진행되고 있으나 사람이 직접 관찰하는 비효율적인 방법으로 이루어지고 있다. 본 논문에서는 갯벌에 서식하는 생물들을 자동으로 모니터링하기 위한 방법에 적용될 수 있는 객체 분할 방법을 제안한다. 제안하는 방법에서는 차 영상을 이용하여 객체의 위치 정보를 나타내는 전경 맵을 구하고, 영상의 세밀한 경계 검출을 위해 슈퍼픽셀 방법을 적용한다. 전경 맵과 슈퍼픽셀 정보를 이용하여 최종적으로 갯벌 영상에서 게의 영역을 추출한다. 실험 결과는 제안하는 방법이 간단하면서도 정확하게 갯벌 영상에서 게 영역을 분리하는 것을 보여준다.

• Journal of Microbiology and Biotechnology
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• 제22권11호
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• pp.1549-1556
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• 2012

Endophytic fungi were isolated from roots of six halophytes in Suncheon Bay. The endophytic fungi of 35 species isolated from halophytes were identified by internal transcribed spacer (ITS) containing the ITS1, 5.8s, and ITS2 regions. All fungal strains were analyzed to diversity at the genus level. Fungal culture filtrates (FCF) of endophytic fungi were treated to Waito-c rice (WR) seedling for plant growth-promoting verification. It was confirmed that fungal strain Sj-2-2 provided plant growth promotion (PGP) to WR seedling. Then, PGP of Suaeda japonica was confirmed by treating culture filtrate of Sj-2-2. As a result, it was verified that culture filtrate of Sj-2-2 had more advanced PGP than positive control when treated to S. japonica. The secondary metabolites involved in culture filtrate of Sj-2-2 were identified by HPLC and GC-MS SIM analysis. The presence of physiologically bioactive gibberellins (GAs) and other inactive GAs in culture filtrate of Sj-2-2 was detected. The molecular analysis of sequences of Sj-2-2 showed the similarity to Penicillium sp. of 99% homology. The PGP of Sj-2-2 as well as symbiosis between endophytic fungi and halophytes growing naturally in salt marsh was confirmed. Sj-2-2 was identified as a new fungal strain producing GAs by molecular analysis of sequences. Consequently, the Sj-2-2 fungal strain was named as Penicillium sp. Sj-2-2. In this study, the diversity of endophytic fungi isolated from roots of halophytes in salt marsh and the PGP of a new gibberellin-producing fungal strain were confirmed.