• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.841-845
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• 2012

최근 중국과 인도는 공유하천인 야루짱부(중국명: 아로장포(雅魯藏布), 인도명:Brahmaputra)강 유역 내 수력발전용 댐 건설을 놓고 갈등 중이다. 발단은 중국이 2010년 9월에 정식으로 착공한 짱무수력발전댐(장목수전참(藏木水電站))의 건설이다. 총길이 3,848km, 유역면적 71만여 $km^2$인 야루짱부강은 중국과 인도, 방글라데시, 부탄 4개국이 공유하고 있다. 야루짱부강의 발원지는 히말라야 산맥 북쪽 기슭의 지에마양쫑 빙하(걸마앙종(杰馬央宗) 빙천(冰川))이고 중국내 길이가 2,057km에 달한다. 강은 중국의 씨짱(서장(西藏))지역, 인도의 아루나찰 프라데시(Arunachal Pradesh)주와 아쌈(Assam)주를 경유하여 부탄, 방글라데시로 흐른다. 야루짱부강은 티베트로 잘 알려진 시짱자치구에서 발원하여 중국과 인도의 영토 분쟁지역인 아루나찰 프라데시주를 관통함으로 인해 지정학적으로 중요한 의미를 갖고 있다. 짱무수력발전댐은 시짱 지역 최대 수력개발댐으로, 인도와 방글라데시는 중국의 댐 건설로 인해 자국의 수자원의 감소와 생태계 파괴가 발생할 것을 우려하고 있다. 그러나 최근 중국과 인도의 관방은 이 같은 우려를 부인하며 인도의 아루나찰 연방당국 또한 5개 주요 지류에 1,750MW 규모의 수력발전댐을 건설할 계획을 발표하였다. 이와 같이 수력발전댐 건설과 수자원확보를 놓고 중국과 인도가 팽팽하게 경쟁하게 된 데는 중국과 인도 간의 역내 힘겨루기와 자국 내 정치적 이해, 영토분쟁지역의 존재 등이 원인으로 작용하고 있다. 본 연구는 중국의 짱무수력발전댐(장목수전참(藏木水電站)) 건설원인을 중국정부가 가진 시짱지역관리 및 개발의 필요성에서 찾고 짱무수력발전댐(장목수전참(藏木水電站)) 건설에 드러난 중국의 표면적, 내재적 의도의 분석을 통해 중국의 공유하천 접근 방식의 특징과 원인을 규명하였다. 발원지에 위치한 중국이 수자원확보경쟁에서 유리한 입장을 점하고 있는 가운데 중국에 비해 상대적으로 정치적, 경제적 열세에 놓인 하류국가들은 공유하천의 동등하게 이용할 권리를 쟁취하기 위해 필요한 협상력을 갖고 있지 못하다. 따라서 하류국가들은 중국의 의도를 파악하여 이를 토대로 적절한 대안을 마련해야 할 필요성이 있다. 중국의 공유하천접근방식의 원인과 특징에 대한 분석은 남북통일 후 중국과 하천을 공유하게 될 우리나라에 시사하는 바가 클 것이라 생각된다.

• Journal of Korean Society of Forest Science
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• v.107 no.3
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• pp.245-257
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• 2018

The study was carried out to discover the forest vegetation structure in Hongdo Island, Jeonnam province. Vegetation data were collected by total of forty one quadrate plots using Z-M phytosociological method from June to August in 2017, and analyzed by vegetation classification, mean importance value and species diversity. As a result of vegetation type classification, Castanopsis sieboldii community group was classified at a top level of vegetation hierarchy. In the level of community, it was classified into Neolitsea sericea community and Carpinus turczaninowii community. N. sericea community was subdivided into Ficus erecta group(Vegetation unit 1) and Arisaema ringens group(VU 2). C. turczaninowii community was subdivided into Fraxinus sieboldiana group(VU 3) and C. turczaninowii typical group(VU 4). Therefore, it was classified into total of four vegetation units(one community group, three communities and four groups). As a result of mean importance value, Castanopsis sieboldii was the highest in VU 1, VU 2, VU 4, and C. turczaninowii in VU 4, respectively. In case of species diversity, VU 3 showed the highest among four units in species diversity index. In conclusion, the forest vegetation of Hongdo Island was classified into four units and seven species groups. Hongdo Island could be conclusively managed by community ecological approach for the units and groups. Also it was considered that a research for the succession to the evergreen broad-leaved forest should be more intensively proceeded near future.

• Korean Journal of Ecology and Environment
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• v.54 no.3
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• pp.156-169
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• 2021

Traditional morphological identification difficulties, such as phenotypic plasticity, misidentification of cryptic species, and larval stage species, can be compensated for by using DNA analysis techniques, such as DNA barcoding, in surveying zooplankton populations, including species identification. Recently, the rapid development of DNA sequencing techniques has allowed DNA-based community analysis not only for zooplankton assemblages in various aquatic ecosystems but also for the gut contents of zooplankton that are limited by conventional methods such as visual and microscopic identification. Therefore, the application of DNA sequencing can help understand biological interactions through the analysis of zooplankton food sources. The present paper introduces the major DNA-based approaches in zooplankton research topics, including taxonomic approaches by DNA barcoding, community-level approaches by metabarcoding, and gut content analyses, summarizes the analysis methods, and finally suggests the methodological topics that need to be considered for future applications.

• Journal of Christian Education in Korea
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• v.68
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• pp.217-243
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• 2021

As can be seen from the statement by the UN Secretary-General that "COVID-19 is a crisis with a woman's face," women have experienced great crisis, pain, and difficulties caused by the COVID-19 pandemic. This study examined the situations of women through statistical data and research studies. Through this study, economic, socio-cultural, and psycho-emotional aspects were dealt with in detail, and how these issues appeared in relation to "caring" were examined. In addition, as a response of the church to these problems and crises, pastoral theological reflection was promoted through "Ethics of Care" and "caring ministry". The "caring ministry" of the church extends not only to personal care within the church, but also to social, cultural, economic, political, and ecological issues, and the church has a missionary mission to respond to these issues related to disasters with a public nature. Furthermore, through educational ministry, the change of values and mindsets on "care" and inequality and Diakonia, the loving care of the church community, should be encouraged.

• Journal of Korean Society of Forest Science
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• v.81 no.4
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• pp.372-382
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• 1992

Recreation planning is essential activity to meet changing demands and to protect the resources. The recreation opportunity specturm(ROS) system is a principal part of a recreational management planning. In this study, the basic concepts and tenets of the ROS system described and reviewed the feasibility of applying to forest recreation planning to the Korean national forest. In Korea, the forest land as a major recreation place has used without the rational planning process. The control for the laissez-faire use on the forest area, the classification of recreational opportunity settings is the most important process and then it make a useful tool for providing proper recreational opportunity and site development guidance. Opportunity settings classification can help maintain diversity and enhance protection of forest resources. It can also improve the quality of recreational experiences and the management action guidances. GIS technology using the ARC/INFO could be useful in current attempts to identify analysis areas for predictive modeling of forest recreation site planning.

• Weed & Turfgrass Science
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• v.6 no.1
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• pp.40-54
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• 2017

The mound grave of Korean traditional funeral culture is a unique habitat which is a Zoysiagrass lawn being sustainable in proper management. We phytosociologically described an unusual Zoysiagrass vegetation with Gueldenstaedtia verna by the Zürich-Montpellier School's method and analyzed eco-floristic characteristics. A new association, Gueldenstaedtio-Zoysietum japonicae ass. nov. hoc loco, was identified and subdivided into festucetosum ovinae, typicum, and trifolietosum repensae. The subassociations were distinguished by the difference in species composition resulting from site accessibility and lawn management method. The association was assigned as not only a regional but also a locally-limited vegetation type, which distributes on a particular microhabitat with strong continentality in the Daegu regional subdistrict of Bioclimatological division. The Zoysiagrass vegetation of Korea was considered as a continental type apparently different from the oceanic type of Zoysion japonicae (Miscanthetea sinensis, Caricetalia nervatae). Mound graves in Korea should be acknowledged as a meaningful habitat for the in-situ conservation of biodiversity and phytocoenosen, despite being a secondary grassland of Gueldenstaedtio-Zoysietum japonicae.

• Korean Journal of Plant Resources
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• v.33 no.4
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• pp.365-397
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• 2020

To investigate the distribution of vascular plants growing at Apsan park, we surveyed from April in 2018 to October in 2019. The flora of Apsan park was classified as a total of 721 taxa comprising of 114 families, 382 genus, 619 species, 5 subspecies, 77 varieties, 12 forma, 5 hybrid, 3 cultivation. Among them, The Rare plants species 23 taxa, endemic plants 15 taxa, floristic regional indicator plants 98 taxa, naturalized plants 57 taxa were recorded. The percentage of urbanization index was 17.76%, the naturalized ratio was 7.91%, respectively.

• Research in Plant Disease
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• v.20 no.3
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• pp.206-210
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• 2014

Korean ginseng (Panax ginseng) is the most popular herb for medical purpose in Korea. Recently, viral diseases from Korean ginseng showing various degrees of severe mottling, variegation and mosaic symptoms have caused quantity losses of Korean ginseng in a large number of farms. Watermelon mosaic virus (named WMV-gin) was identified as a causal agent for the disease of Korean ginseng. Interestingly, WMV-gin failed to infect both Korean ginseng plant and susceptible host species including cucurbitaceous plants by mechanical inoculation. However, WMV-gin could successfully infect Korean ginseng by transmission of two aphid species (Myzus persicae and Aphis gossypii). It is likely that transmission of WMV-gin was done by both the aphid species during feeding behavior of the two aphid species on Korean ginseng, though the aphids dislike feeding in Korea ginseng. Similarly, a strain of WMV (WMV-wm) isolated from watermelon was transmitted successfully to Korean ginseng plant by the two aphid species, but not by mechanical inoculations. Transmission assays using M. persicae and A. gossypii clearly showed both WMV-gin and WMV-wm were not transmitted from infected Korean ginseng plant to cucurbit species that are good host species for WMV. These results suggest WMV disease occurring in Korean ginseng plant can be controlled by ecological approaches.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.469-482
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• 2022

The purpose of this study is to analyze regional variation factors of hypertension treatment rate in COVID-19 based on the analysis results based on ecological methodology. To this end, data suitable for ecological analysis were collected from the Korea Centers for Disease Control and Prevention's regional health statistics, local government COVID-19 confirmed cases, National Health Insurance Corporation, Health Insurance Review and Assessment Service's welfare statistics, and Korea Transport Institute's traffic access index. Descriptive statistics and correlation analysis were conducted using SPSS Statistics 23 for regional variation and related factors in hypertension treatment rate, and geographical weighted regression analysis was conducted using Arc GIS for regional variation factors. As a result of the study, the overall explanatory power of the calculated geo-weighted regression model was 27.6%, distributed from 23.1% to 33.4% by region. As factors affecting the treatment rate of hypertension, the higher the rate of basic living security medical benefits, diabetes treatment rate, and health institutions per 100,000 population, the higher the rate of hypertension treatment, the lower the number of COVID-19 confirmed patients, the lower the rate of physical activity, and the alcohol consumption. Percentage of alcohol consumption decreased due to COVID-19 pandemic. It was analyzed that the lower the ratio, the higher the treatment rate for hypertension. Based on these results, the analysis of regional variables in the treatment rate of hypertension in COVID-19 can be expected to be effective in managing the treatment rate of hypertension, and furthermore, it is expected to be used to establish community-centered health promotion policies.

• Journal of Korea Water Resources Association
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• v.54 no.spc1
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• pp.1037-1051
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• 2021

Biochemical oxygen demand (BOD) concentration, one of important water quality indicators, is treated as the measuring item for the ecological chapter in lakes and rivers. This investigation employed novel two-stage hybrid paradigm (i.e., wavelet-based gated recurrent unit, wavelet-based generalized regression neural networks, and wavelet-based random forests) to predict BOD concentration in the Dosan and Hwangji stations, South Korea. These models were assessed with the corresponding independent models (i.e., gated recurrent unit, generalized regression neural networks, and random forests). Diverse water quality and quantity indicators were implemented for developing independent and two-stage hybrid models based on several input combinations (i.e., Divisions 1-5). The addressed models were evaluated using three statistical indices including the root mean square error (RMSE), Nash-Sutcliffe efficiency (NSE), and correlation coefficient (CC). It can be found from results that the two-stage hybrid models cannot always enhance the predictive precision of independent models confidently. Results showed that the DWT-RF5 (RMSE = 0.108 mg/L) model provided more accurate prediction of BOD concentration compared to other optimal models in Dosan station, and the DWT-GRNN4 (RMSE = 0.132 mg/L) model was the best for predicting BOD concentration in Hwangji station, South Korea.