온량지수에 따른 느티나무군락의 다층구조 식재모델

공석준 ( Seok Jun Kong ),신진호 ( Jin Ho Shin ),양금철 ( Keum Chul Yang ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2012 한국환경복원기술학회지 Vol.15 No.2

This study suggested the planting model of Zelkova serrata communities in the areas with the warmth index of both 80~100 and 100~120°C·month. Warmth index was calculated with 449 weather points using inverse distance weighted interpolation method. The planting species were selected by correlation analysis between Z. serrata and each species of four or more frequency among the 36 releve surveyed for this study. The result of this study is summarized as follows: Warmth index of Z. serrata communities was among 74~118°C·month. Results of the correlation analysis between Z. serrata and each species observed that the Z. serrata belongs to the tree layer with warmth index of 80~100 and 100~120°C·month. On the other hand, the species of Carpinus laxiflora, Quercus serrata, Prunus sargentii and Platycarya strobilacea appeared only in the tree layer with warmth index of 80~100°C·month. Z. serrata and Styrax japonica appeared in the subtree layer with the warmth index of 80~100 and 100~120°C·month, while Acer pseudosieboldianum, Lindera erythrocarpa, Acer mono, Quercus serrata, etc. appeared in the subtree layer with the warmth index of 80~100°C·month. Z. serrata, Ligustrum obtusifolium, Lindera obtusiloba, Callicarpa japonica and Zanthoxylum schinifolium all appeared in the shrub layer with the warmth index of 80~100 and 100~120°C·month. Lindera erythrocarpa, Orixa japonica, Staphylea bumalda, Akebia quinata and Sorbus alnifolia appeared in the shrub layer with the warmth index of 80~100°C·month and Styrax japonica and Stephanandra incisa appeared in the shrub layer with the warmth index of 100~120°C·month, The numbers of each species planted in a 100m2 area of the Z. serrata community were suggested as follows:five in tree layer, five in subtree layer and nine in shrub layer. The average area of canopy are suggested to be about 86m2 for tree layer, 34m2 for subtree layer and 34m2 for shrub layer.

RCP 8.5 시나리오를 이용하여 온량지수에 따른 천안시 적응 가능한 식물종 연구

공석준 ( Seok Jun Kong ),신진호 ( Jin Ho Shin ),양금철 ( Keum Chul Yang ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2013 한국환경복원기술학회지 Vol.16 No.3

This study was proposed to adaptable species according to climate change using warmth index (WI) in Cheonan-Si. RCP 8.5 was used to estimate change of warmth index (WI) depending on climate change in Cheonan-Si. Climatic change of Cheonan-Si was estimated to change from cool temperate forest central zone to warm temperate forest zone. The following plant species will survive within WI change of Cheonan-Si from 2010 to 2050:18 species in the tree layer including Quercus serrata, Q. variabilis, Pinus densiflora, Q. acutissima etc.; 28 species in the shrub layer including Rhus trichocarpa, Lindera obtusiloba, Zanthoxylum schinifolium etc.; 24 species in the herb layer including Oplismenus undulatifolius, Carex lanceolata, etc.; 12 species in the vine plants including Smilax china, Cocculus trilobus, etc.

불암산 도시자연공원 상수리나무군락의 토양호흡 특성 연구1a

김정섭 ( Jeong Seob Kim ),공석준 ( Seok Jun Kong ),양금철 ( Keum Chul Yang ) 한국환경생태학회 2014 한국환경생태학회지 Vol.28 No.6

본 연구에서는 2013년 06월부터 2014년 05월까지 1년간 불암산 도시자연공원 상수리나무군락에서 토양호흡량과 미기후 분석을 실시하였다. 토양호흡량과 미생물호흡량은 각가 28.14 ± 7.99 ∼ 582.47 ± 318.51 mg, 12.32 ± 8.04∼ 415.71 ± 159.92 mg CO2om-2oh-1의 범위로 조사되었다. 또한, 토양호흡량은 계절별로 여름, 가을, 겨울, 봄에 각각1169.1, 454.81, 72.08, 494.23 g CO2om-2omonth-1로, 미생물호흡량은 526.20, 340.09, 45.13, 374.9 g CO2om-2omonth-1로 조사되었다. 연간 토양호흡량과 미생물호흡량은 각각 2190.22 g CO2om-2oyr-1, 1286.33 g CO2om-2oyr-1로 조사되었다. 또한, 토양호흡량, 미생물호흡량과 환경요인과의 상관관계에 대해 지수함수를 이용한 회귀식을 적용하여 분석하였다. 토양호흡과 미생물호흡 모두 토양온도와 대기온도에서 정의 상관관계를 보였으나, 토양수분함량과 광량에서는 매우 낮은 상관관계를 나타내었다. 토양호흡량과 미생물호흡량간의 차이로 추정한 뿌리호흡량은 토양호흡량 중 약33.60%를 차지하는 것으로 나타났다. The purpose of this study is to analyze the soil CO2 efflux and micro-climate of a preserved forest area located in a Mt. bulam urban nature park Quercus acutissima stand from June 2013 to May 2014. The research showed that the soil and heterotrophic CO2 efflux were 28.14 ± 7.99 to 582.47 ± 318.51 and 12.32 ± 8.04 to 415.71 ± 159.92 mg CO2?m-2?h-1, respectively. In addition the seasonal soil CO2 efflux of summer, autumn, winter, spring were 1169.1, 454.81, 72.08 and 494.23 g CO2?m-2?month-1, respectively. On the other hand, the seasonal heterotrophic CO2 efflux were 526.20, 340.09, 45.13 and 374.9 g CO2?m-2?month-1, respectively. Moreover, the annual soil and heterotrophic CO2 efflux was found to be 2190.22 and 1289.33 g CO2?m-2?yr-1, respectively. The exponential function was also utilized for the regression analysis in order to correlate the environmental factors with the soil and heterotrophic CO2 efflux. It was found out that both air and soil temperatures were positively correlated with the soil and heterotrophic CO2 efflux. However, the amount of solar radiation and soil moisture has showed low correlation for both types of CO2 efflux. Contribution of root CO2 efflux to total soil CO2 efflux in this Quercus acutissima stand was 33.60%.

광역생태축과 국토환경성평가지도를 활용한 지자체 광역생태네트워크 구축 방안

김근한 ( Geun Han Kim ),공석준 ( Seok Jun Kong ),김민경 ( Min Kyeong Kim ),이명진 ( Moung Jin Lee ),송지윤 ( Ji Yoon Song ),전성우 ( Seong Woo Jeon ) 한국환경정책평가연구원 2014 환경정책연구 Vol.13 No.3

급속한 경제성장으로 인한 대규모의 개발들은 산림, 농지 등 넓은 면적의 야생 동식물의 서식지의 훼손 및 단절을 유발하였다. 이와 같은 문제를 해결하기 위해 국토의 자연생태계를 하나의 유기체로서 인식하고, 생태적으로 우수한 서식지의 지속적인 관리를 통하여 자연생태계를 보전해야 한다. 특히 지자체에서는 생태적 연결성뿐만 아니라 환경생태적 우수성까지 고려한 광역생태네트워크를 구축하여 지자체 개발관련 계획에 적극 반영해야 한다. 이를 위해 국토의 생태적 연결성을 평가한 광역생태축과 우리나라의 환경생태적 가치를 정량적으로 분석하고 평가하기 위한 평가지도인 국토환경성평가지도의 환경생태적 평가 결과를 활용하여 지자체 광역생태네트워크 구축 방안을 제시하였다. 그리고 경상남도 사례로 지자체 광역생태네트워크를 구축하였으며, 구축 결과 기존에 구축되었던 광역생태축의 핵심지역 2,986㎢과 완충지역 2,940㎢가 확장되어 핵심지역은 4,049㎢, 완충지역은 3,006㎢으로 결과가 도출되었다. 개발계획 시 이러한 광역생태네워크의 참조는 지자체 생물다양성 증진과 생태계 보호를 포함한 지자체 통합적 환경관리에 크게 기여할 수 있을 것으로 판단된다. Large-scale unband development resulted from the rapid economic growth in the Republic of Korea has brought about the habitat destruction for the native animals and plants living in forest and farmland. In order to resolve this problem, it is necessary to consider the natural ecosystem as an organism and to preserve the natural ecosystem by managing ecologically significant habitat consistently. Especially, the local governments should be able to establish regional ecologic networks in consideration of the ecological connectivity and the environmental and ecological excellence, and to reflect them into the local development plans. In regard to this, the methods of the regional ecological network establishment was presented, making use of the results including the national ecological network which assessed the ecological connectivity of the nation and the environmental and ecological assessment results of the Environmental Conservation Value Assessment Map which was designed to analyze and assess the national environmental and ecological values quantitatively. Making use of the case of Gyeongsangnam-do; the results presented that the existing national ecological network in the core region has expanded from 2,986㎢ to 4,049㎢ and the existing national ecological network in the buffer region has expanded from 2,940㎢ to 3,006㎢. Referring to the regional ecological network in the process of the local development plans could contribute to the increase in biodiversity and the integrated local environmental management including the ecosystem preservation.

지자체 생물다양성 관리전략 구축

김근한 ( Geun Han Kim ),공석준 ( Seok Jun Kong ),김민경 ( Min Kyeong Kim ),이명진 ( Moung Jin Lee ),송지윤 ( Ji Yoon Song ),전성우 ( Seong Woo Jeon ) 한국환경정책평가연구원 2014 환경정책연구 Vol.13 No.2

세계적으로 인간의 활동에 따른 서식지 훼손 및 기후 변화에 의해 생물다양성이 감소하고 있다. 이에 따라, 생물 다양성의 감소를 막기 위해서 국제사회는 생물다양성 협약과 같은 협력 체제를 마련하는 등의 노력을 하고 있다. 지금까지 우리나라의 생물다양성 전략 및 계획은 주로 정부의 주도하에 정책적으로 진행되었으나, 국가에 의한 생물다양성전략은 보수적이며, 실행 계획이 구체적이지 않다는 단점을 가진다. 따라서 지자체 생물자원을 관리하기 위한 방법으로 지자체 생물다양성 관리전략을 제안하였다. 지자체 생물다양성 관리전략 수립을 위한 전략계획 및 세부계획을 제시하기 위해 생물다양성 협약, ‘2011~2020 생물다양성 전략계획’, 우리나라 생물다양성 전략 및 이행계획과 해외 지자체 생물다양성 관리전략 우수 사례를 분석하였다. 결과적으로, 각각의 사례에서 중요하게 제시하고 있는 개별 생물종의 조사 및 보호, 보전지역의 지정 및 모니터링, 통합적 생태네트워크 관리, 생물다양성 전문기관의 설립과 전문가 양성방안, 지역의 인적 네트워크와 전통지식 활성화 방안, 생물산업 육성방안의 추진전략을 도출할 수 있었다. 이러한 지자체 생물다양성 관리전략의 이행은 ‘2011~2020 생물다양성 전략계획’의 목표를 달성하여 생물다양성을 보전하고 증진하는 데 큰 도움이 될 것이다. Due to habitat damage associated with climate change and human activities, biodiversity has decreased all over the world. In order to prevent further reduction in biodiversity, the international community has endeavored to establish a cooperative system, such as the Convention on Biological Diversity (CBD). Until now, most biodiversity strategic planning has been led by the national government. However, the National Biodiversity Strategy and Action Plan is conservative and its strategic plan is vague. Therefore, we propose a method for managing local biological resources called the Local Biodiversity Strategy and Action Plan. In order to provide the strategic plans and detailed plans for the Local Biodiversity Strategy and Action Plan, the report has examined several cases including Convention on Biological Diversity, Strategic Plan for Biodiversity 2011-2020, and the biodiversity strategies and action plans of the Republic of Korea and several other countries. As a result, the report demonstrates the survey and protection of bio-species, the designation and monitoring of conservation region, the management of the integrated eco-network, the establishment of biodiversity organizations and capacity building, the methods to promote networking and traditional knowledge, and the strategy for development in bioindustry. Consequently, the implementation of biodiversity management strategies by local governments will play a significant role in preserving and increasing biodiversity by realizing the goals of Strategic Plan for Biodiversity 2011-2020.

보존지역의 합리적 관리를 위한 철새 서식 확률지도 구축 - 부산 Eco Delta City (EDC)를 중심으로 -

김근한 ( Kim Geun Han ),공석준 ( Kong Seok Jun ),김희년 ( Kim Hee Nyun ),구경아 ( Koo Kyung Ah ) 한국환경복원기술학회 2023 한국환경복원기술학회지 Vol.26 No.6

In some areas of the Republic of Korea, the designation and management of conservation areas do not adequately reflect regional characteristics and often impose behavioral regulations without considering the local context. One prominent example is the Busan EDC area. As a result, conflicts may arise, including large-scale civil complaints, regarding the conservation and utilization of these areas. Therefore, for the efficient designation and management of protected areas, it is necessary to consider various ecosystem factors, changes in land use, and regional characteristics. In this study, we specifically focused on the Busan EDC area and applied machine learning techniques to analyze the habitat of regional species. Additionally, we employed Explainable Artificial Intelligence techniques to interpret the results of our analysis. To analyze the regional characteristics of the waterfront area in the Busan EDC district and the habitat of migratory birds, we used bird observations as dependent variables, distinguishing between presence and absence. The independent variables were constructed using land cover, elevation, slope, bridges, and river depth data. We utilized the XGBoost (eXtreme Gradient Boosting) model, known for its excellent performance in various fields, to predict the habitat probabilities of 11 bird species. Furthermore, we employed the SHapley Additive exPlanations technique, one of the representative methodologies of XAI, to analyze the relative importance and impact of the variables used in the model. The analysis results showed that in the EDC business district, as one moves closer to the river from the waterfront, the likelihood of bird habitat increases based on the overlapping habitat probabilities of the analyzed bird species. By synthesizing the major variables influencing the habitat of each species, key variables such as rivers, rice fields, fields, pastures, inland wetlands, tidal flats, orchards, cultivated lands, cliffs & rocks, elevation, lakes, and deciduous forests were identified as areas that can serve as habitats, shelters, resting places, and feeding grounds for birds. On the other hand, artificial structures such as bridges, railways, and other public facilities were found to have a negative impact on bird habitat. The development of a management plan for conservation areas based on the objective analysis presented in this study is expected to be extensively utilized in the future. It will provide diverse evidential materials for establishing effective conservation area management strategies.

UHF 대역용광대역원 편파 안테나 설계

이종익(Jong-Ig Lee),양명규(Myung-Gyu Yang),권준혁(Jun-Hyoek Kwon),이창균(Chang-Kyun Lee),공석준(Seok-Jun Kong) 한국통신학회 2015 한국통신학회 학술대회논문집 Vol.2015 No.1