• 한국발생생물학회지:발생과생식
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• 제14권3호
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• pp.163-170
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• 2010

The gDNA isolated from Korean cuttle fish (Sepia esculenta Hoyle) from Sockcho (SOCKCHO), Seocheon (SEOCHEON), Incheon (INCHEON) and Vietnamese cuttle fish (VIETNAM), were amplified by PCR. Here, the seven selected primers (BION-A07, BION-A09, BION-A11, BION-A20, BION-B04, BION-B06, and BION-B14) were used to generate the unique shared loci to each population and shared loci by the four cuttle fish populations. In this study, the primer BION-A11 detected 112 shared loci by the four populations, major and/or minor fragments of sizes 300 bp, 400 bp, 700 bp and 1,000 bp, respectively, which were identical in all samples. The dendrogram obtained by the seven primers indicates five genetic clusters: cluster 1 (SOCKCHO 01-SOCKCHO 07), cluster 2 (SEOCHEON 08-SEOCHEON 10), cluster 3 (SEOCHEON 11-SEOCHEON 14), cluster 4 (INCHEON 15-INCHEON 21), and cluster 5 (VIETNAM 22-VIETNAM 28). The shortest genetic distance that displayed significant molecular differences was between individuals 25 and 26 from the Vietnamese cuttle fish (0.025), while the longest genetic distance among the twenty-eight cuttle fishes that displayed significant molecular differences was between individuals SOCKCHO no. 02 and SEOCHEON no. 12 (0.640). Individual of Seocheon and Incheon cuttle populations was somewhat closely related to that of Vietnamese cuttle fish population. Even though it could not be affirmed by a single case, such a result seems to be closely connected that the Korean peninsula is subject to climate changes by global warming. In conclusion, our PCR analyses revealed a significant genetic distance among the four cuttle fish populations.

• 한국조경학회지
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• 제47권6호
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• pp.37-44
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• 2019

본 연구의 목적은 금산군에 위치한 마을습지 분포를 파악하고, 선행 연구된 서천군 마을습지와의 지형특성에 따른 마을습지 분포현황을 비교하는 것이었다. Arc-GIS(v10.1)를 이용하여 지형, 수문, 습지 코드를 추출하여 마을습지 가능지 607개소가 도출되었고, 위성영상, 항공사진, 지형도, 한국토지정보시스템(KLIS), 토지이용도, 토지피복도(중분류), 토지이용현황도 등을 바탕으로 실내 판별작업 결과, 192개소가 도출되었다. 192개소를 대상으로 현지답사와 실내판별 작업을 통해 123개소의 최종 마을습지가 도출되었으며, 금산군 마을습지와 생태환경이 다른 서천군의 마을습지와 분포특성을 비교해 보았을 때 내륙산지지역인 금산군 소규모 마을습지 분포 특성은 해안평야지역인 서천군에 비해 면적은 60%이상 넓음에도 마을습지 가능지는 큰 차이가 없었으며, 최종 판별된 마을습지는 오히려 훨씬 적은 2/3 수준에 불과한 것으로 확인되었다. 소규모 마을습지는 생태적 중요성에도 불구하고, 관리의 사각지대로서 급격히 사라지고 있어 종합적이고 체계적인 관리를 위해서는 마을습지의 기능과 보전가치 등의 평가와 더불어 마을습지 분포, 생태적 기능, 보전가치 평가 등을 종합한 마을습지 DB구축 및 관리가 중요하다. 일상생활을 통해 지역 생태계의 생태적 질을 향상하고, 지역주민과 탐방객에게 양질의 생태계 서비스 혜택을 제공하기 위해서는 마을습지의 보전과 조성으로 양적 질적 확대를 도모하여 생태네트워크를 구축하는 것도 중요하다. 아울러 후속연구로서 마을습지 입지별 유형별 규모별 관리전략과 현명한 이용전략 수립 연구가 필요하다. 마지막으로 본 연구 성과는 지역의 생태계 서비스 평가를 위한 기초자료는 물론 생태자연도 및 국토환경성평가도 등 토지의 생태적 가치를 평가하기 위한 근거로 활용할 수 있을 것이다.

• 한국양식학회지
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• 제17권1호
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• pp.12-23
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• 2004

Genomic DNAs were extracted from the muscle of twenty-two specimens of two shortnecked clam, Ruditapes phifippinarum populations collected in Anmyeondo and Seocheon. Genetic differences within and between populations were analysed by random amplified polymorphic DNAs-polymerase chain reaction (RAPD-PCR) using twenty arbitrary decamer primers. Out of 20 primers, 6 generated a total of 1,111 major and minor RAPD bands from individuals of two sites, producing approximately 4.2 average polymorphic bands per primer in individuals from Anmyeondo and ranging in size from less than 50 to larger than 1,500 base pairs (bp). The electrophoretic analysis of RAPD products amplified showed moderate levels of similarity among the different individuals in Seo-cheon population. The average bandsharing values (BS value) of the samples within population from Anmyeondo ranged from 0.155 to 0.684, whereas it was 0.143∼0.782 within population from Seocheon. The average BS value between individuals No. 13 and No. 14 from Seocheon was 0.782 which was higher than that of those from Anmyeondo. The single linkage dendrogram resulted from three primers (OPA-08, -09 and -20), indicating six genetic groupings composed of group 1 (No.4, 8 and 10), group 2 (No. 18), group 3 (No.2, 5 and 7), group 4 (No. 1, 3, 6, 9, 11, 12, 13, 14, 15 and 17), group 5 (16, 19 and 20) and group 6 (No. 21 and 22). In the Seocheon population, the individual No. 18 clustered distinctly from the others of this population. The observed genetic distance between the two populations from Anmyeondo and Seocheon was more than 0.209 (0.247 and 0.275). The shortest genetic distance (0.094) displaying significant molecular differences was between individuals No. 13 and No. 14. Especially, the genetic distance between individuals No. 22 and the remnants among individuals in two geographical populations was highest (0.275). This result illustrated that individual No.22 is distinct from other individuals within two shortnecked populations. The different geographical features of two sites may have caused the genetic diversity in two shortnecked clam populations.

• 한국지역지리학회지
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• 제20권2호
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• pp.189-205
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• 2014

수많은 지자체들이 대규모 개발 사업이나 지역축제를 통해 관광객을 유치하고자 한다. 그러나 현실적으로 성공가능성이 낮으므로, 투입비용에 비해 효율이 높은 친환경 생태 관광산업에 더 신경을 써야한다. 서천 지역은 우수한 생태 및 문화자원을 보유하고 있었음에도 크게 주목받지 못하였지만, 국립생태원과 국립해양생물자원관이 새롭게 개원하면서 새로운 생태 관광의 중심지로 부상할 가능성이 높아졌다. 따라서 이 논문에서는 서천 일대에 분포하는 여러 생태 문화적 자산을 분석한 후 생태계서비스의 주요 기능인 생태관광을 도입하여 생태관광의 3요소인 자연환경, 탐방객, 지역민들이 모두 만족할 수 있는 프로그램을 개발하고자 하였다. 해안과 하안이 만나는 곳에 위치한 서천 지역에서는 기존의 유명 관광지와 연계하여 4개의 권역으로 생태자산을 재구성할 수 있었다. 탐방객들을 머무르게 할 방안으로 체험 활동을 통해 지역에서 숙박을 하도록 유도하였으며, 슬로우 라이프의 실현을 위해 각 경관들을 천천히 즐기도록 설계하였다. 생태연구의 메카가 될 국립생태원과 국립해양생물자원관을 중심으로 인근의 금강 하구 철새도래지와 람사르습지로 지정된 서천 갯벌 주변으로 탐방객들을 인도할 수 있도록 프로그램도 제시하였다. 본 연구를 통해 서천을 방문하는 탐방객들이 만족하고, 지역민들의 삶도 윤택해질 수 있는 계기가 될 것으로 기대한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2006년도 추계학술대회 논문집
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• pp.1340-1347
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• 2006

During excavation in seocheon tunnel, sudden groundwater inundation occurred in complex hydro-geological environments prevailing in underground tunnel. Large volumes of groundwater flowed into tunnel at STA 54km600. The authors have provided a comprehensive background to hydro-mechanics of groundwater with a geological analysis, ground investigation, hydro- mechanical modelling etc. To reinforce tunnel, we have applied the TAS grouting and the steel multi-layer grouting, and comfirmed the effects of reinforcement.

• 환경영향평가
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• 제22권5호
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• pp.409-426
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• 2013

The purpose of this study is to present the raw data for management and conservation of tidal flat by objective surveying and analysing the halophytes and vegetation distributed in Seocheon tidal flat wetland conservation area, Korea. The results are as follows. The numbers of halophytes in this site were summarized as 27 taxa including 13 families, 21 genera, 26 species and 1 variety. In the results of ecologically important species, rare plant was 1 taxa, 10 taxa of the specific plants by floristic region, 1 taxa of naturalized plant and 1 taxa of the plant with approval for delivering oversea. The life form spectrum consisted of therophytes(44.4%), hemicryptophytes(25.9%), geophytes(14.8%), nanophanerophytes(7.5%), chamaephytes and hydatophytes(each 3.7%). The types of vegetation of Seocheon tidal flat wetland conservation area were classified with 17 communities including Vitex rotundifolia community, Suaeda maritima community, Calystegia soldanella community and so forth. In the halophytes composition, section C and E-1 had the largest character species and companion species. In the results of vegetation amount, section C, D, E-1 and E-2 were the highest score, on the other hand, section A and B were the lowest. The final rating was calculated by adding up values of two factors, and section C and E-1 had the highest rating of II. In future, we will survey the whole flora in Seocheon tidal flat, we will offer the help to establishing the conservation plan of coastal plant ecosystem in West Sea.

• 한국환경복원기술학회지
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• 제19권3호
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• pp.11-27
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• 2016

This study is a survey of the flora distributed in Seocheon tidal flat wetland protected area of nearby island (Daejuk-do, Tokki-deung, Muk-do) and Yubo-do Seocheon-gun Chuncheongnam-do, Korea. The numbers of vascular plants were summarized as 231 taxa including 65 families, 167 genera, 204 species, 2 subspecies, 23 varieties and 2 forms. The halophytes were 33 taxa including 15 families, 29 genera, 29 species, 3 varieties and 1 form (Chenopodium album var. stenophyllum, Cnidium japonicum, Juncus haenkei and so on). The rare plants were 4 taxa including Pseudoraphis ukishiba (VU), Belamcanda chinensis (VU), Phacelurus latifolius (LC) and Polygonum bellardii (DD). The Korean endemic plants were 2 taxa including Salix pseudolasiogyne and Forsythia koreana. In the specific plants by floristic region were 24 taxa, a degree I were 19 taxa (Rhodotypos scandens, Zanthoxylum planispinum, Cynodon dactylon and so on), 2 taxa of a degree III (Elymus mollis and Asparagus oligoclonos), 3 taxa of a degree IV (Polygonum bellardii, Wisteria floribunda and Pseudoraphis ukishiba) and degree II, V were not found. The naturalized plants were 40 taxa including Phytolacca americana, Sicyos angulatus, Lactuca scariola and so on. Naturalization rate (NR) was 17.3% of all 231 taxa of vascular plants and urbanization index (UI) was 12.5% of all 321 taxa of naturalized plants. This study was performed to used as a basic data to identify the protected from plant ecosystems of type classify into analyze the vegetation characteristic of based on flora distributed in Yubu-do and nearby islands.

• 한국기후변화학회지
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• 제8권3호
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• pp.275-285
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• 2017

Chungnam region has established and executed the 2nd Climate Change Adaptation Initiative Execution Plan (2017~2021) based on the Framework Act on Low Carbon, Green Growth. The Execution Plan is established based on the results of climate change vulnerability assessment using the CCGIS, LCCGIS, and VESTAP analysis tools. However, the previously developed climate change vulnerability assessment tools (CCGIS, LCCGIS, VESTAP) cannot reflect the local records and the items and indices of new assessment. Therefore, this study developed a prototype of climate change vulnerability assessment analysis tool that, unlike the previous analysis tools, designs the items and indices considering the local characteristics and allows analysis of grid units. The prototype was used to simulate the vulnerability to forest fires of eight cities and seven towns in Chungcheongnam-do Province in the 2010s, 2020s, and 2050s based on the RCP (Representative Concentration Pathways) 8.5 Scenario provided by the Korea Meteorological Administration. Based on the analysis, Chungcheongnam-do Province's vulnerability to forest fires in the 2010s was highest in Seocheon-gun (0.201), followed by Gyeryong-si (0.173) and Buyeo-gun (0.173) and the future prospects in the 2050s was highest in Seocheon-gun (0.179), followed by Gyeryong-si (0.169) and Buyeo-gun (0.154). The area with highest vulnerability to forest fires in Chungcheongnam-do Province was Biin-myeon, Seocheon-gun and the area may become most vulnerable was Pangyo-myeon, Seocheon-gun. The prototype and the results of analysis may be used to establish the directions and strategies in regards to the vulnerability to wild fires to secure each local government's 2nd execution plan and attainability.

• 환경생물
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• 제40권4호
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• pp.604-614
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• 2022

본 연구는 2019, 2020년 서천과 세종에서 제비의 번식이 확인된 둥지 63개(서천 23, 세종 40)의 좌표를 대상으로 800m 내 제비의 서식지 현황과 잠재적 먹이원 발생량 변화를 분석하였다. 연구지역 내 제비의 서식지 구성을 확인한 결과 세종이 서천에 비해 다양한 서식지 유형을 보였으며, 다양한 우점군의 출현이 확인되어 제비의 잠재적 먹이원인 비행성 곤충의 발생에 있어 유리한 서식지 요소로 가진 것으로 확인되었다. 잠재적 먹이원 발생량은 서천은 인가와 하천, 세종은 하천에서의 발생량이 가장 높았다. 잠재적 먹이원 발생량은 서식지 유형에 따라 발생시기에 차이를 보였다. 본 연구는 제비의 번식장소 주변의 서식지 유형을 파악하고, 해당 서식지에서 발생되는 잠재적 먹이원의 발생시기와 발생량 비교를 통해 제비의 서식지 보호 및 유치에 필요한 기초자료로 제공하고자 한다.

• 한국지형학회지
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• 제26권1호
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• pp.121-131
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• 2019

The coast of BiIn Bay, Seocheon, is the potential site for the field-trip learning program. This article is written in the viewpoint of geographical and environmental education. In this study, it is tried to describe geomorphological landscapes of BiIn Bay Seocheon-gun relating with it's physiognomy, based on the Dasa-ri and Songrim-ri coastal sanddunes and the like. Although landforms like tidal flats and rock cliff constitute prominent landscape features in this area, other features such as beaches, coastal dunes, and coastal plains have various ramifications for human communities. Tidal flats, beaches and coastal dunes are formed by the combined actions of longshore current, tidal flows, waves and winds. To some extent, the erosion of sandy coast has been a global phenomenon. Anthropogenic impacts are involved in the transformation of landform. Most favorable field-trip course of BiIn Bay is from Songrim-ri through Dasa-ri and Shinhap-ri to Maryang-ri. This program about coastal landforms in BiIn Bay will contribute not only for educational meanings but also for satisfying the student' curiosity and interest. Also, this field-trip learning program will be suitable for over 4th grade elementary school students and middle school students.