언어네트워크 분석을 이용한 국내·외 지역생물다양성 전략 분석

이현재,성기준,Lee, Hyeon-jae,Sung, Kijune 한국환경영향평가학회 2018 환경영향평가 Vol.27 No.1

전 지구적인 문제로 부상하고 있는 생물다양성 훼손에 대처하기 위하여 여러 국가에서 국가생물 다양성전략 및 지역차원에서의 실천을 위한 지역생물다양성전략을 수립하고 있다. 본 연구에서는 국내 8개 지역과 국외 41개 지역에서 수립된 지역생물다양성전략을 언어네트워크분석법을 이용하여 국내 외 전략수립 특성을 파악하였다. 연구결과 지역생물다양성전략에 있어서 국내와 국외의 차이가 있음을 보여주었는데, 보전과 관리가 국내 외에서 가장 많이 사용된 핵심어로 나타났으나 비전, 목표부문, 전략부문, 실천과제 등 각 전략체계에서 우선적으로 사용된 핵심어들은 다소 다른 것으로 나타났다. 네트워크 분석 결과 국내가 국외와 비교하여 더 세분화된 분산형 네트워크를 가지고 있는 것에 반해, 국외의 경우 좀 더 포괄적이고 통합적으로 구성된 밀집형의 네트워크를 가진 것을 알 수 있었다. 이러한 지역생물다양성전략의 차이는 생물다양성의 위협요인이나 문제인식 혹은 지역상황의 차이 등에 의한 것으로 판단된다. 본 연구결과는 향후 국내 지역생물다양성전략의 수립이나 생물다양성협약의 비전을 달성하기 위한 지역적 역할을 평가하는데 도움이 될 수 있을 것으로 기대된다. The loss of biodiversity has become a global issue. In order to cope with this problem, national biodiversity strategies and action plan (NBSAP) at national level as well as local biodiversity strategies and action plan (LBSAP) at local level have been established in many countries. In this study, we analyzed 8 domestic LBSAPs and 41 foreign LBSAPs through semantic network analysis to investigate the characteristics of domestic and foreign LBSAPs. The results showed that conservation and management were the most used keywords in both domestic and foreign LBSAPs but the ranking of other keywords used in vision, goal, strategy, and action plan sector was different. Thus, it has been found that there is a difference between domestic and foreign practical approaches to conservation and management of biodiversity. Results of the network analysis showed that the domestic network has a more detailed distributed network, while the foreign network has a more comprehensive and integrally configured dense network. These differences may be due to differences of threats to biodiversity, problem recognition, or differences in local circumstances. These results are expected to help establish LBSAP in other region or to assess the local roles to achieve the strategic goals of the Convention on Biological Diversity.

EDDS가 바이오에너지 작물의 중금속 흡수에 미치는 영향

이중헌,성기준,Lee, Junghun,Sung, Kijune 한국지하수토양환경학회 2015 지하수토양환경 Vol.20 No.4

Plants grown in metal-contaminated sites have to be managed and disposed of safely even in phytoremediation because heavy metals can be transferred to other organisms through the food chain, which could result in bioaccumulation in organisms of a higher trophic level. However, if the harvested plants could be used for bioenergy, the ecological risk is reduced and phytoremediation improves economic feasibility. This study researched the effects of EDDS (Ethylenediamine disuccinate) on the heavy metal uptake performance of Brassica campetris and Sorghum biocolor, both of which have potential as bioenergy plants. The results showed that EDDS could increase Pb, Cu, Ni, Cd, and Zn concentrations in the roots and shoots of both of these plants. Furthermore, EDDS reduced the metal inhibition of the S. bicolor length growth. The translocation factors (TF) of S. bicolor and B. campestris are smaller than one for all five heavy metals tested and decreased by the following order: heavy metal + EDDS > heavy metals only > uncontaminated soil. The results suggest that with regard to plant growth and metal accumulation, S. bicolor treated with EDDS is more suitable than is B. campestris for the phytoremediation of soils contaminated with multiple metal species.

낙동강 하류 및 부산연안지역의 준설토와 퇴적토 활용을 위한 특성 평가

이용민,김국진,성기준,Yi, Yongmin,Kim, Gukjin,Sung, Kijune 한국지하수토양환경학회 2013 지하수토양환경 Vol.18 No.1

Although the quantity of dredged soils has increased owing to recent new harbor construction, sea course management, polluted sediment dredging, and four-river project, the reuse or recycling of those dredged soils has not done properly in Korea. To develop measures to utilize them in various ways for reuse or recycling, the biophysicochemical properties of dredged soils and sediment were assessed in this study. Samples were classified according to their sources-river and sea-by location, and as dredged soil and sediment depending on storage time. The results showed that dredged materials from the sea have high clay content and can be used for making bricks, tiles, and lightweight backfill materials, while dredged materials from the river have high sand content and can be used in sand aggregates. Separation procedures, depending on the intended application, should be carried out because all dredged materials are poorly sorted. All dredged soils and sediments have high salinity, and hence, salts should be removed before use for cultivation. Since dredged materials from the sea have adequate concentrations of nutrients, except phosphate, they can be used for creating and restoring coastal habitats without carrying out any additional removal processes. The high overall microbial activities in dredged materials from the river suggested that active degradation of organic matter, circulation of nutrients, and provision of nutrients may occur if these dredged materials are used for cultivation purpose.

오염토양 정화공법이 토양의 생물학적 특성에 미치는 영향

이용민,김국진,성기준,Yi, Yongmin,Kim, Gukjin,Sung, Kijune 한국지하수토양환경학회 2013 지하수토양환경 Vol.18 No.3

Various remediation methods have been applied to clean soils contaminated with pollutants. They remove contaminants from the soils by utilizing physicochemical, biological, and thermal processes and can satisfy soil remediation standards within a limited time; however, they also have an effect on the biological functions of soils by changing soil properties. In this study, changes of the biological properties of soils before and after treatment with three frequently used remediation methods-soil washing, land farming, and thermal desorption-were monitored to investigate the effects of remediation methods on soil biological functions. Total microbial number and soil enzyme activities, germination rate and growth of Brassica juncea, biomass change of Eisenia andrei were examined the effects on soil microorganisms, plant, and soil organisms, respectively. After soil washing, the germination rate of Brassica juncea increased but the above-ground growth and total microbial number decreased. Dehydrogenase activity, germination rate and above-ground growth increased in both land farming and thermal desorption treated soil. Although the growth of Eisenia andrei in thermal desorption treated soil was higher than any other treatment, it was still lower than that in non-contaminated soil. These results show that the remediation processes used to clean contaminated soil also affect soil biological functions. To utilize the cleaned soil for healthy and more value-added purposes, soil improvement and process development are needed.

간단한 거리교육과 홍보가 큰입배스(Micropterus salmoides)에 대한 시민 인식 변화에 미치는 경향

이현재(Hyeon-Jae LEE),성기준(Kijune SUNG) 한국수산해양교육학회 2018 水産海洋敎育硏究 Vol.30 No.2

부산광역시의 토지피복과 경관 변화 분석

정진욱(JinWook Chung),성기준(Kijune Sung) 한국생태공학회 2022 한국생태공학회지 Vol.9 No.1

It is necessary to understand the changes in the landscape to ensure sustainable land use, secure various habitats, and enhance and preserve green area functions. For this reason, this study analyzed landscape changes in 2000, 2010, and 2019 in Busan Metropolitan City using Fragstat and GIS. This study showed that the area of urban, wetlands, and barrens increased, and the size of farmlands, forests, and grasslands decreased from 2000 to 2019. Fragmentation seems to have occurred in the farmlands and the largest forest patch in the eastern part of Busan. The destruction of the ecosystem occurred in farmlands and forests from 2010 to 2019, grasslands from 2000 to 2019, and wetlands from 2000 to 2010. As more development pressure is expected on the forest area and the Nakdong river estuary in the future, it is believed that a lot of attention is needed to preserve the forest area and wetlands to maintain the landscape and ecosystem services of Busan Metropolitan City.

낙동강수계 미량유해물질 현황과 생태계 미치는 영향 조사

노인혜(Inhye Roh),성기준(Kijune Sung) 한국생태공학회 2021 한국생태공학회지 Vol.8 No.1

Total domestic chemical emissions and specific water hazardous substances are gradually increasing. The ‘integrated ecotoxicity management system’ was introduced in 2011, but new hazardous water pollutants are continuously discharged, and the importance of managing the hazardous micropollutants that threaten public safety is increasing. The Nakdong River flows through a highly industrialized and densely populated area, has more pollutant discharge facilities than other rivers. Although several cases of detecting high concentrations of trace hazardous substances have been reported, few studies have been on their risk. Therefore, the purpose of this study was to investigate the related research and to assess their ecosystem risk. Various trace hazardous substances, including 36 pharmaceuticals, 29 VOCs, 34 pesticides, and 12 perfluorinated compounds were reported in the mainstream and tributaries of the Nakdong River and after water purification. As a result of estimating the hazard quotient (HQ) for six substances detected in high concentrations by taxon among the investigated trace hazardous substances, the HQ of Clarithromycin was over 1.0, which may have a negative impact on the ecosystem. In addition to the establishment or reinforcement of water quality standards for trace hazardous substances, special management is required.

정화토양의 토양질 평가

이용민(Yong Min Yi),성기준(Kijune Sung) 한국생태공학회 2022 한국생태공학회지 Vol.9 No.1

Since the use of the remediated soil is undetermined, the quality of the soil should be appropriately evaluated according to its future use. In this study, we developed a soil quality assessment method that can be applied to soils after the remediation process. Soil quality was assessed based on soils that require productivity for use in agricultural fields and landscaping in uncontaminated, contaminated, and remediated cases using soil washing, landfarming, and thermal desorption. The results showed that the quality of soil washing treated deteriorated the most compared to landfarming and thermal desorption-treated soil, assessed based on the case of use as field soil. In the case of thermal desorption, the range of reduction was smaller than that of soil washing, but soil quality decreased slightly after remediation. However, in the case of landfarming, there was no change in soil quality after remediation. The soil quality indices calculated for landscaping also decreased the most in the soil washing because organic matter and pH decreased during the process. In the case of thermal desorption and landfarming, all the soil quality decreased due to contamination, but it increased slightly after remediation. The two indices applied in this study, SQIT and SQIA, showed similar trends, suggesting that both can be used for soil quality evaluation. Further research is needed on how much the soil quality evaluation results presented in this study can reflect the various services the soil ecosystem provides, that is, the actual soil functions in these soils.

부산 육상 지역 탄소보유량 및 경제적 가치 평가

정세화(Sehwa Jeong),성기준(Kijune Sung) 한국생태공학회 2021 한국생태공학회지 Vol.8 No.1

Studies on estimating and assessing carbon storage related to natural-based solutions that reduce carbon by utilizing ecosystems, one of the carbon neutral strategies to cope with climate change, are being conducted. In this study, assessment of carbon storage and economic value of terrestrial area area in Busan were conducted using the Carbon model of InVEST, an ecosystem service-based assessment model. As a result of the study, it was found that the current terrestrial area increased from the past time due to the development of coastal stations and urban areas, but the amount of carbon storage decreased. Dong-Busan and Gijang-gun, which have the largest area, had the highest carbon storage per unit area. In the case of Gijang-gun, the rate of reduction in carbon storage was the largest among administrative districts. In order to realize carbon neutrality in Busan, it is necessary to minimize the impact on the carbon storage capacity of important ecosystems by comparing the current status of carbon storage and the amount of carbon changes caused by development.

핵심어 네트워크 분석을 활용한 내륙과 해양 지역 생물다양성 전략 분석

이현재(Hyeon-Jae LEE),성기준(Kijune SUNG) 한국수산해양교육학회 2021 水産海洋敎育硏究 Vol.33 No.2