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

• 대한지구과학교육학회지
• /
• 제8권3호
• /
• pp.251-258
• /
• 2015

Ecosystems of the southwestern tidal flats in Korean peninsula have been seriously injured by human activities. The results are mainly due to the lack of public recognition and education on tidal flats. In particular, thoughtless visitors in tidal flats are giving rise up damages because of non-systematic experience programs to tidal flat ecosystems. Therefore, experience programs friendly to natural tidal flats are necessary as a plan to reserve tidal flats and to enhance the effects of environment education on the flats. Experience learning programs on tidal flats can divide into direct experience, indirect experience and local society works. Direct experience work must undergo tidal flats directly and consider on forming the flats with natural refinement functions. Indirect experience includes deeper knowledge on role, circumstance and ecosystems of the flats on the bases of direct experience on the flats. In addition, local society learning must have the feeling and understanding on socio-cultural characteristics of local society itself through above two works. Experience activity would be a kind of injuring one to tidal flats. However, appropriately planned experience and education works on tidal flats could be sustainable development to attract desirable human activity on coastal ecosystems.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
• /
• pp.249-252
• /
• 2005

Microphytobenthos bloom from late January to early March in Korean tidal flats. KOMPSAT-2 will provide multi-spectral images with a spatial resolution of 4 m comparable with IKONOS. Using IKONOS and Landsat data, algal mat detection was tested in the Saemangeum area~ Micro-benthic diatoms are abundant and a major primary product in the tidal flats. A linear spectral unmixing (LSU) method was applied to the test data. LSU was effective to detect algal mat and the classified algal mat fraction well correlated with NDVI image. Fine grained upper tidal flats are generally known to be the best environment for algal mat. Algal mat thriving in coarse grained lower tidal flats as well as upper tidal flats were reported in this study. A high resolution multi-spectral sensor in KOMPSAT-2 will provide useful data for long-term monitoring of microphytobenthos in tidal flats.

• Ocean and Polar Research
• /
• 제22권1호
• /
• pp.15-23
• /
• 2000

The community structure of meiobenthos was studied in tidal flats of Kanghwado in November, 1997. Nematodes were the most dominant group among 18 total meiofaunal groups at most stations except for at lower tidal flats where the most abundant groups were harpacticoid copepods. Meiobenthos were the most abundant in the upper 1cm and their density decreased depending on the depth from the surface. The highest density of the meiobenthos was 6,094 inds. $10cm^{-2}$ at the upper tidal flat, while the lowest was 1,524 ind. $10cm^{-2}$ at the lower tidal flat. The density was higher in general at the upper tidal flats, but decreased at the stations toward lower tidal flat at all transect lines. At all transect lines, nematodes decreased as stations were along toward lower tidal flat whereas harpacticoids increased. The values of N/C(nematodes/benthic harpacticoids) ratio were higher at the upper tidal flats than the lower tidal flats at all transect lines.

• 한국습지학회지
• /
• 제7권2호
• /
• pp.133-144
• /
• 2005

본 연구는 갯벌의 생태계 및 환경 현황, 갯벌 주변의 사회경제적 이용현황, 지역주민 설문조사 등의 다양한 자료를 활용하여 갯벌을 관리유형별로 구분하였고 이에 대한 기본 관리방안을 도출하는 것을 목적으로 한다. 이를 위해 간의 사회경제활동과 환경과의 관계를 규명하기 위해 채택한 압력-상태-대응 구조(PSR 구조)를 활용하였고, 갯벌 유형을 보호습지대상지역, 습지개선지역, 이용조정지역으로 구분하였다. PSR 평가체계를 활용하여 보호습지대지역은 34개, 습지개선지역은 26개, 이용조정지역은 9개의 단위 갯벌로 나타났다. 갯벌 관리의 기본방향은 갯벌 유형에 따라 지역의 특성을 고려하여 구체적인 방안을 달리하여야 할 것이다. 보호습지대상지역은 습지보호지역 지정시 우선적으로 검토되어야 하며 갯벌목록 및 모니터링을 통해 지속적인 연구와 관리계획 수립이 이루어져야할 것이다. 습지개선지역은 자연상태로 개선이 가능한 곳으로 판단되는 지역이고 이를 위해 압력요인 완화와 복원이 이루어져야 할 것이다. 이용조정지은 보전 및 개선의 필요성이 낮은 지역으로 심각한 위협을 줄 수 있는 이용행위의 조정이 필요한 지역이다. 그러나, 기본적으로 갯벌의 보전과 장기적으로 지속가능한 이용에 우선순위를 두어 관리방안을 마련하는 것이 중요하다.

• 한국환경과학회지
• /
• 제17권12호
• /
• pp.1391-1402
• /
• 2008

Designating conservation sites is needed for the preservation and management of tidal flats, and also objective criteria, by which preservation values of tidal flats can be evaluated, are required to designate conservation sites. A set of new evaluation criteria or tidal flats was suggested in this study. The criteria, based on six items including scarcity, diversity, naturalness, uniqueness, destruction possibility and preservation will, ave the advantages with which easy and economic assessments are possible by using basic data from the preceding studies. The evaluation results for the three different tidal lats (Muan, Jeungdo-1 and Jeungdo-2) in the southwestern coast of Korea reveal that all he tidal flats evaluated are classified into grade 2. The tidal flat which got the highest valuation score was Jeungdo-1 tidal flat (86.7), and the next was Muan (85.0) and Jeungdo-2 (82.5). The Jeungdo-2 tidal flat was superior in uniqueness and destruction possibility, and the Muan tidal flat was superior in diversity and naturalness.

• Journal of Species Research
• /
• 제9권3호
• /
• pp.191-197
• /
• 2020

Species belonging to the genus Tryblionella are important members of the diatom assemblages of benthic environments such as tidal flats. Their proper identification is thus of great importance in terms of taxonomy, ecology, as well as environmental sciences. However, many species of the genus have been neglected and/or misidentified during diatom studies of Korean tidal flats possibly due to the small size of the species. Lack of proper references for the identification of the species is also noted. To better understand the diversity of Tryblionella species, sediment samples were taken from various tidal flats of the Yellow Sea. Light microscope (LM) and scanning electron microscope (SEM) observations have shown the presence of Tryblionella adducta and T. hyalina, which have not been previously reported from Korean tidal flats. The former was found mostly from sand flats and the latter from mudflats. It is expected that the present study would contribute to a better understanding of the diversity and ecology of benthic diatoms of the Korean tidal flats.

• 한국환경과학회지
• /
• 제9권2호
• /
• pp.131-136
• /
• 2000

The seasonal data obtained at National Fisheries Research and Development Institute from 1989 to 1994 were analyzed to investigate the seasonal variations of temperature and salinity in incheon coastal area. In the tidal flats covering from Incheon harbor to Sorae, the mean temperatures are higher, the amplitudes of flats, the mean salinities are lower, its amplitudes are larger, and its phases are later than those of outer tidal flats. These suggest that Inchion coastal area may be divided into two areas: the tidal flats from Incheon harbor to Sorae, which is largely influenced by the seasonal variation of solar heating, precipitation and evaporation and the outer tidal flats, which is slightly influenced by the effects of seasonal variation of salinity.

• 한국지형학회지
• /
• 제18권4호
• /
• pp.59-78
• /
• 2011

본 연구에서는 우리나라의 간석지 연구사를 유형별 및 시기별로 정리하였다. 간석지 연구사는 크게 간석지 퇴적물 연구, 위성영상을 이용한 연구, 제4기 환경변화와 간석지에 관한 연구, 그리고 간석지의 생태학적 연구 등 4개 분야로 구분하였다. 한국의 간석지 연구사를 종합적으로 살펴보면, 간석지 연구는 일제시대 때부터 있었으나 대부분 수산업에 관계된 연구들이었다. 이후 1960년대에는 간척사업으로 인해 형성된 간척지를 대상으로 하는 연구에 집중되었다. 지형학적인 관점에서의 간석지에 관한 연구는 1970년대에 본격적으로 시작되어 1980년대 이후부터 간석지의 중요성이 알려지면서 더욱 활기를 띠게 되었다. 특히, 퇴적환경과 지표 형태 및 생태계, 지형 변화에 관한 연구가 주를 이루었으며, 2000년대 이후에는 위성영상 자료와 현장조사를 병행하여 접근하기 어려운 간석지의 퇴적상 및 퇴적환경 변화를 지속적으로 모니터링 하는 연구가 진행되었다. 우리나라의 간석지에 관한 지리학 분야에서의 학술연구는 다수 진행되었지만, 지형학에서의 간석지 연구 성과는 소수에 의해 진행되어 여전히 블루오션과 같은 분야이다. 따라서 향후 더 많은 지형학자의 관심 속에서 우리나라의 간석지에 대한 다양한 연구가 진행되어 지형학에서의 주요 연구 분야로 정착하기를 기대한다.

• 한국해양환경ㆍ에너지학회지
• /
• 제2권1호
• /
• pp.102-112
• /
• 1999

히로시마만에 존재하고있는 간석지에 있어서 유입하천의 유무, 폐쇄성 등의 환경조건이나 조성 후 경과연수가 다른 인공간석지 7개소와 자연간석지 3개소를 선정해 간석지 토양에 있어서 물리화학적 및 생물학적인 구조나 유기물분해기능에 관해 비교 검토하였다. 또한 인공간석지에 있어서는 입지장소, 조성방법, 조성 후 경과연수 등의 차이에 의한 영향, 자연간석지와 동일하게 조성하기 위한 조성인자를 검토해서, 아래와 같은 결과를 얻었다. 인공간석지는 자연간석지와 다른 특성을 갖고 있는 것과 그렇지 못한 것으로 분리되었다. 그렇지만 대부분이 자연간석지와 전혀 다른 특성을 나타내었다 토양구조 중에서 가장 다르게 나타난 것은 세균수, 실트함유량, 유기물함유량을 들 수 있으며, 각 실험 항목이 인공간석지 보다 자연간석지가 높은 값을 나타내었다. 자연간석지와 현저하게 차이를 보인 세균수, 실트함유량 및 유기물함유량에 관해서, 각 인공간석지의 조성 후 경과연수, 표면구배, 유입 하천의 유무, 폐쇄성 등의 조성 인자와의 상관성을 분석 했지만, 명확한 상관관계는 알 수 없었다. 자연간석지와 유사한 토양구조 특성을 갖기 위한 간석지를 조성하는 데에는, 간석지 전면에 있어서 해수로부터 실트 성분이 침강 가능한 장소의 선정이 중요하다.