한국 국립공원 산림생태계의 수목 탄소저장량 평가

이상진,박홍철,박관수,김현숙,이창민,김진원,심규원,최승운,Lee, Sang-Jin,Park, Hong-Chul,Park, Gwan-Soo,Kim, Hyoun-Sook,Lee, Chang-Min,Kim, Jin-Won,Sim, Gyu-Won,Choi, Seung-Woon 한국환경복원기술학회 2022 한국환경복원기술학회지 Vol.25 No.3

The purpose of this study is to quantitatively evaluate the amount of carbon storage for trees in forest ecosystem to support the foundation for carbon neutrality implementation in Korea National Park. It targeted 22 national parks designated and managed as national parks in Korea, and conducted research on forest trees in the terrestrial ecosystem among various natural and ecological carbon sink. The survey and analysis method followed the IPCC guidelines and the National Greenhouse Gas Inventory in Korea. The amount of tree carbon storage in the forest ecosystem of Korea National Park was confirmed to be about 218,505 thousand CO₂-ton and the amount of carbon storage per unit area was 570.8 CO₂-ton per hectare. Compared to 299.7 CO₂-ton per hectare, the average carbon storage per unit area of the entire Korean forest, it was found that about twice as much carbon was stored when assuming the same area. In other words, it means that the tree carbon storage function of the national park is about twice as high as that of the average tree carbon storage function of entire Korean forest. It has great implications in Korea National Park not only provides biodiversity promotion and exploration services as a national protected area, but also performs excellent functions as a carbon sink.

Current Status of Industrial Waste Generation and Symbiosis Network in Gyeongsangbuk-do, South Korea

( Jong-hun Park ),( In-gyung Jung ),( Jae-gun Seo ),( Sang-hyoun Kim ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2015 No.-

This work aimed to analyze current status of by-products generation and industrial symbiosis network in Gyeongsangbuk-do, South Korea. Manufacturing sector of the province mainly consists of electronics, machinery, steel, metal-working industries. Gumi and Pohang have the 1st and 2nd largest worker population in the manufacturing sector. 21,950.7 ton/d of waste is generated from the industries in 2011, of which 82.2% is recycled. The industrial waste, which is not recycled, is mainly composed of sludge cake from domestic wastewater treatment plants, waste plastic, incinerator ash, and slag. Pohang is the largest generating city of both total and the non-recycled industrial waste in the province, and most of the waste is from Pohang steel industrial park. Symbiosis map in Pohang steel industrial park shows that most of the current material symbiosis in the industrial park is for waste refractories and slag.

Current Status of Industrial Waste Generation and Symbiosis Network in Gyeongsangbuk-do, South Korea

Jong-Hun Park,In-Gyung Jung,Jae-Gun Seo,Sang-Hyoun Kim 한국폐기물자원순환학회 2015 한국폐기물자원순환학회 학술대회 Vol.2015 No.05

This work aimed to analyze current status of by-products generation and industrial symbiosis network in Gyeongsangbuk-do, South Korea. Manufacturing sector of the province mainly consists of electronics, machinery, steel, metal-working industries. Gumi and Pohang have the 1st and 2nd largest worker population in the manufacturing sector. 21,950.7 ton/d of waste is generated from the industries in 2011, of which 82.2% is recycled. The industrial waste, which is not recycled, is mainly composed of sludge cake from domestic wastewater treatment plants, waste plastic, incinerator ash, and slag. Pohang is the largest generating city of both total and the non-recycled industrial waste in the province, and most of the waste is from Pohang steel industrial park. Symbiosis map in Pohang steel industrial park shows that most of the current material symbiosis in the industrial park is for waste refractories and slag.

Soil characteristics of the Abies koreana communities at Korean national parks: focusing on Sobaeksan, Deogyusan, Jirisan National Parks

Chang Min Lee,Sang Jin Lee,Gwan Soo Park,Hyoun Sook Kim,Hong Chul Park 충남대학교 농업과학연구소 2022 Korean Journal of Agricultural Science Vol.49 No.2

대전시 도시숲의 식생 및 토양특성에 관한 연구

김동일 ( Dong Il Kim ),박관수 ( Gwan Soo Park ),김길남 ( Gil Nam Kim ),김현숙 ( Hyoun Sook Kim ),이항구 ( Hang Goo Lee ),박범환 ( Beom Hwan Park ),이상진 ( Sang Jin Lee ),강길남 ( Kil Nam Kang ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2011 한국환경복원기술학회지 Vol.14 No.2

This study was conducted to suggest appropriate methods for management of urban forest after investigating the present condition and problems of urban forests by analyzing vegetation and soil properties in urban forests in the Daejeon. On the basis of our research, Pinus rigida dominate Gyejoksan and Bomunsan. Pinus densiflora dominate Wolpyeong park and Quercus acutissima dominate Namsun park. On the basis of our result of analysis of soil chemical properties, all investigated areas have low pHs, available phosphates and exchangeable cations. They indicate that the soil of those areas have been acidifying progressively. Soil hardness measurements were conducted to know the conditions of trampled soils and the results of them show that soil hardness in Namsun park was higher than the others. This indicates that human interference affect the health of the urban forest.

충청남도 도립공원 산림 식생 분석

김현숙 ( Hyoun-sook Kim ),박관수 ( Gwan-soo Park ),이상명 ( Sang-myong Lee ),이중구 ( Joongku Lee ),김정현 ( Junghyun Kim ) 한국환경생태학회 2018 한국환경생태학회지 Vol.32 No.5

본 연구는 충남도립공원(덕산도립공원, 칠갑산도립공원, 대둔산도립공원)에 분포하고 있는 산림 식생을 비교 분석하기 위해 2006년부터 2016년까지 실시되었다. 본 연구 조사지의 식생을 식물사회학적 방법으로 분석한 결과, 덕산도립공원은 신갈나무군락, 소나무군락, 굴참나무군락 및 느티나무군락으로 구분되었고, 칠갑산도립공원은 굴참나무군락, 신갈나무군락, 소나무군락 및 서어나무군락으로 구분되었으며, 대둔산도립공원은 신갈나무군락, 굴참나무군락 졸참나무군락, 개서어나무군락, 서어나무군락, 소나무군락 및 상수리나무군락으로 구분되었다. 각 도립공원의 중요치는 덕산도 립공원에서 신갈나무가 가장 높았으며(72.35), 다음으로 소나무(70.25), 굴참나무(53.11), 때죽나무(11.44), 산벚나무(11.17), 물푸레나무(10.41) 등의 순으로 나타났으며, 칠갑산도립공원에서는 굴참나무가(73.34) 가장 높았고 다음으로 소나무(58.71), 신갈나무(57.02), 서어나무(18.84), 졸참나무(13.48), 산벚나무(13.31) 등의 순으로 나타났다. 대둔산도 립공원은 신갈나무가(57.03) 가장 높았고 다음으로 굴참나무(31.98), 졸참나무(31.53), 소나무(16.80), 개서어나무(16.50), 서어나무(16.07), 쪽동백나무(15.76), 당단풍나무(10.09) 등의 순으로 나타났다. 중요치가 높은 주요 분류군에 대한 흉고직경급을 분석한 결과 덕산도립공원에서는 신갈나무, 굴참나무가 정규분포형의 밀도를 나타내고 있어 당분간은 이들 수종의 우점 상태가 계속될 것으로 보인다. 칠갑산도립공원에서는 굴참나무, 신갈나무, 소나무가 정규분포형의 밀도를 나타내고 있어 당분간은 이들 수종의 우점 상태가 계속될 것으로 보이나 서어나무와, 졸참나무의 어린 개체 밀도가 높아 앞으로 이들의 세력이 확장될 것으로 판단된다. 대둔산도립공원은 신갈나무와 굴참나무는 어린개체의 밀도가 높은 역 J자형을 하고 있어 우점 상태가 계속될 것으로 보이며, 개서어나무와 소나무는 어린 개체와 큰 개체의 밀도가 낮고, 중간 개체의 밀도가 높아 정규분포형의 밀도를 나타내고 있는 것으로 보아 당분간은 이들 수종에 의한 우점 상태가 계속될 것으로 판단된다. 서어나무와 졸참나무는 중간이상의 개체와 비교해 볼 때 어린 개체의 밀도가 높아 앞으로 이들의 우점도가 증가할 것으로 예상된다. This study compared forest vegetation in Chungcheongnam-do Provincial Park (Deogsan, Chilgabsan, and Daedunsan) from 2006 to 2016. The results of the analysis on the vegetation of the research sites by the phytosociological method showed that the Deogsan Provincial Park had Quercus mongolica community, Pinus densiflora community, Q. variabilis community, and Zelkova serrata community. Chilgabsan Provincial Park had Q. variabilis community, Q. mongolica community, P. densiflora community, and Carpinus laxiflora community. Daedunsan Provincial Park had Q. mongolica community, Q. variabilis community, Q. serrata community, C. tschonoskii community, C. laxiflora community, P. densiflora community, and Q. acutissima community. The importance value in each Provincial Parks was analyzed as follows. The importance value of Q. mongolica(72.35) was the highest in Deogsan Provincial Park, and followed by P. densiflora(70.25), Q. variabilis(53.11), Styrax japonicus(11.44), Prunus sargentii(11.17), and Fraxinus rhynchophylla(10.41). Q. variabilis(73.34) was the highest in Chilgabsan Provincial Park and followed by, P. densiflora(58.71), Q. mongolica(57.02), C. laxiflora(18.84), Q. serrata(13.48), and Prunus sargentii(13.31). The importance value of Q. mongolica(57.03) was the highest in Daedunsan Provincial Park and followed by Q. variabilis(31.98), Q. serrata(31.53), P. densiflora(16.80), C. tschonoskii(16.50), C. laxiflora(16.07), S. obassia(15.76), and Acer pseudosieboldianum(10.09). The results of DBH analysis of the major species having the high importance value showed the normal density distirbution of Q. mongolica, and Q. variabilis in Deogsan Provincial Park, so the dominance status of these species is likely to continue. Q. variabilis, Q. mongolica, and P. densiflora in Chilgabsan Provincial Park showed the normal density distribution showed the density of normal distribution, so the dominance status of these species is likely to continue. However, the dominance status of C. laxiflora, and Q. serrata is likely to be expanded in the future due to the high density of young individuals. Q. mongolica, and Q. variabilis in Daedunsan Provincial Park showed the density of reverse J-shaped curve, so the dominance status of these species is likely to continue, and C. tschonoskii, and P. densiflora had a formality distribution, suggesting continuous domination of these species over the other species for the time being. Additionally the dominance status of C. laxiflora, and Q. serrata is considered to be expanded in the future due to the high density level of young individuals.

Synergic Effects of MEM Vitamins and Beta-mercaptoethanol in Maturation Medium on ROS of Oocytes and Embryos, and Apoptosis of Blastocysts in Porcine

Sang-hyoun Park,Jong-hoon Kim,Jung-kee kwon,Il-jeoung Yu 한국동물생명공학회(구 한국동물번식학회) 2011 발생공학 국제심포지엄 및 학술대회 Vol.2011 No.1

In this study, synergic effects of MEM vitamins (MEMv) and beta-mercaptoethanol (bME) supplemented to porcine maturation medium on reactive oxygen species (ROS) of oocytes and embryos, and apoptosis of blastocysts were determined. Cumulus-oocyte- complexes (COCs) were allocated into four treatment groups: 0.05X MEMv, 25 uM bME, 0.05X MEMv + 25 uM bME or a group without MEMv + bME. In experiment 1, COCs were cultured in four respective treatment groups based on NCSU-23 medium for 44 h at 39℃ in a 5% CO2 atmosphere. We evaluated ROS of oocytes. In experiment 2, COCs were cultured in four respective treatment groups and then were fertilized in vitro (IVF) or activated by chemical or electrical method. We determined ROS of early stage embryos (2 cell-4 cells) and apoptosis of blastocysts. DCHFDA for ROS level and TdT-mediated dUTP nick end labelling (TUNEL) for apoptosis were used. As a result, ROS level of oocytes was not significant difference among experimental groups. In early stage embryos produced by IVF, MEMv + bME group showed significantly lower ROS level than that of control group (p<0.05). Level of apoptosis in blastocysts of the MEMv + bME group was significantly lower than that of the control group (p<0.05). In early stage embryos produced by chemical activation, ROS level of MEMv + bME group was significantly lower than that of bME group (p<0.05) without significant difference with those of control and MEMv group. Level of apoptosis in blastocysts in the MEMv + bME group was significantly lower than that of the control group (p<0.05). In early stage embryos produced by electrical activation, ROS level of MEMv + bME group was significantly lower than that of control (p<0.05). However, apoptosis level of blastocyst was not significant difference among experimental groups. In conclusion, the present study indicates that the addition of MEM vitamins and betamercaptoethanol during in vitro maturation is able to alleviate the production of ROS and apoptosis.

Cyclo(Phe-Pro) Modulates the Expression of ompU in Vibrio spp

Park, Dae-Kyun,Lee, Ko-Eun,Baek, Chang-Ho,Kim, In Hwang,Kwon, Ji-Hyoun,Lee, Won Koo,Lee, Kyu-Ho,Kim, Byung-Soo,Choi, Sang-Ho,Kim, Kun-Soo American Society for Microbiology 2006 Journal of Bacteriology Vol.188 No.6

<B>ABSTRACT</B><P><I>Vibrio vulnificus</I> was found to produce a chemical that induced the expression of <I>Vibrio fischeri lux</I> genes. Electron spray ionization-mass spectrometry and <SUP>1</SUP>H nuclear magnetic resonance analyses indicated that the compound was cyclo(l-Phe-l-Pro) (cFP). The compound was produced at a maximal level when cell cultures reached the onset of stationary phase. Sodium dodecyl sulfate-polyacrylamide gel analysis of the total proteins of <I>V. vulnificus</I> indicated that expression of OmpU was enhanced by exogenously added synthetic or purified cFP. A <I>toxR</I>-null mutant failed to express <I>ompU</I> despite the addition of cFP. The related <I>Vibrio</I> spp. <I>V. cholerae</I>, <I>V. parahaemolyticus</I>, and <I>V. harveyi</I> also produced cFP, which induced the expression of their own <I>ompU</I> genes. cFP also enhanced the expression in <I>V. cholerae</I> of the <I>ctx</I> genes, which are known to be regulated by ToxR. Our results suggest that cFP is a signal molecule controlling the expression of genes important for the pathogenicity of <I>Vibrio</I> spp.</P>

Survival Outcome of Intermediate-Grade Salivary Gland Carcinoma

Park, Gi Cheol,Roh, Jong-Lyel,Cho, Kyung-Ja,Jung, Yong Gi,Lee, Hyoun Wook,Kim, Tae Gyu,Choi, Seung-Ho,Nam, Soon Yuhl,Kim, Sang Yoon S. Karger AG 2018 Oncology Vol.94 No.2

<P><B><I>Objective:</I></B> Histological grade is the most important factor for defining treatment strategies and predicting prognosis for salivary gland carcinoma (SGC). We examined factors affecting long-term recurrence and survival among intermediate-grade SGC (IGSGC) patients to define optimal treatment modalities and outcomes. <B><I>Methods:</I></B> We reviewed the clinical and pathological data on 108 IGSGC patients who underwent definitive surgery with or without postoperative radiotherapy. We compared treatment outcomes by treatment strategies such as surgical extent for the primary tumor, neck dissection, or postoperative radiotherapy. <B><I>Results:</I></B> During a 103-month median follow-up, local, regional, and distant recurrences were detected in 14 (13.0%), 3 (2.8%), and 21 (19.4%) patients, respectively. The 10-year locoregional control (LRC), distant metastasis-free survival (DMFS), and overall survival (OS) rates were 83.1, 76.0, and 80.1%, respectively. Multivariate analyses identified a nonparotid primary site as an independent prognostic factor for LRC (<I>p</I> = 0.018). Adenoid cystic carcinoma and a positive pN classification were significantly unfavorable prognostic factors for DMFS (<I>p</I> = 0.025 and <I>p</I> = 0.030, respectively); overall advanced stage was an independent prognostic factor for OS (<I>p</I> = 0.020). Surgical extent, elective neck dissection, and postoperative adjuvant radiotherapy did not significantly affect treatment outcomes. <B><I>Conclusion:</I></B> Patients with early-stage IGSGC of parotid origin can achieve favorable treatment outcomes with conservative surgery alone.</P>

Biohydrogen production integrated with an external dynamic membrane: A novel approach

Park, Jong-Hun,Anburajan, Parthiban,Kumar, Gopalakrishnan,Park, Hee-Deung,Kim, Sang-Hyoun Elsevier 2017 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Vol.42 No.45

<P><B>Abstract</B></P> <P>A dynamic membrane bioreactor integrating a self-forming dynamic membrane with a continuous fermenter was designed for biohydrogen production using mixed cultures under mesophilic conditions. The novel configuration used was designed to retain effective hydrogen producing bacterial consortia and was investigated at hydraulic retention times (HRTs) of 12–2 h at a constant glucose feed concentration of 15 g/L. A dynamic membrane was successfully formed on support material in an external module and this resulted in a maximum hydrogen production rate of 51.38 L/L-day and a peak hydrogen yield of 2.98 mol/mol glucose<SUB>added</SUB> at 3 h HRT. Acetate and butyrate were dominant metabolic by-products. Quantitative polymerase chain reaction (qPCR) analysis revealed that <I>Clostridium butyricum</I> was the dominant microbial consortium under all HRT conditions examined.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A novel approach of dynamic membrane integration with CSTR has been demonstrated. </LI> <LI> Peak HY and HPR were obtained as 2.98 mol H<SUB>2</SUB>/mol glucose<SUB>added</SUB> and 51.38 L H<SUB>2</SUB>/L-d. </LI> <LI> <I>Clostridium butyricum</I> was dominant spp assessed via q-PCR. </LI> <LI> Active biomass retained in the DM layer attributed towards recovered production. </LI> </UL> </P>