• 한국환경생태학회지
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• 제20권2호
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• pp.94-102
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• 2006

월출산국립공원 도갑사계곡의 식생구조를 분석하기 위하여 30개 조사구를 설정하고 조사를 실시하였다. Classification 기법 중의 하나인 TWINSPAN을 이용하여 군락분리를 시도한 결과, 굴참나무-개서어나무군락, 소나무군락, 굴참나무-소나무군락, 굴참나무군락 그리고 갈참나무-때죽나무군락의 5개 군락으로 최종 분리되었다. 식생 구조분석결과 도갑사지역의 산림은 온대남부수종과 난대수종이 만나는 전이지역의 특색을 나타내고 있었으며, 산림의 임령은 $40{\sim}50$년이었다.

• 인간식물환경학회지
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• 제22권1호
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• pp.99-107
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• 2019

The purpose of this study was to find out the effects of five senses activities in forests on the reduction or mitigation of daily stress using various forest healing factors such as water, sunlight, topography, phytoncide, landscape, sound, fragrance, etc. The subjects of this study were 40 young children aged 5 in an early childhood education institution located in Cheongju. The children were divided into two groups: 20 in the experimental group and 20 in the control group. The experimental group participated in the program of five senses activities in the forest in total of 12 sessions (1-2 sessions a week), with each session lasting 60 minutes from May 8 to June 16, 2017. The control group, who did not participate in the five senses activities in the forest, participated in the Nuri Curriculum operated by the educational institution. Before and after the program, tests to measure daily stress in three different situations (encountering blame-aggression situation, experiencing anxiety-frustration, and losing self-respect) were conducted on young children and the data were analyzed using SPSS 21.0. As a result, daily stress of the young children decreased in all three situations with statistical significance. Through the five senses activities in the forest, young children could feel the nature by observing and exploring it in the forest, so which reduced their daily stress compared to the activities carried out in the classroom.

• 농업과학연구
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• 제46권4호
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• pp.755-768
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• 2019

The forestry development policies and projects in Korea have been implemented under various related acts. These acts include the Framework Act on the National Land and Framework Act on Forestry enacted by each administration. However, there are some limitations to encourage a variety of mountain villages and forestry development policies due to duplication and overlap between the relevant acts. Nowadays, the fields of local development have evolved and become integrated not only by infrastructures but also in various fields such as multi-functional industries including tourism, green care, cultural welfare, etc. Therefore, the current legal system may not effectively accept and support various mountain village development policies and projects. This study tried to determine the necessity of reorganizing th-e related legal system through a field survey of planners, residents and analysts regarding the correlation between legal systems and projects. For these reasons, this study tried to determine the problems of the current legal system and then, suggested alternative methods related to the legal system for integrated rural development. The scope of the study is as follows: 1) correlation analysis between relevant laws and development projects and 2) field survey to determine the legitimacy and validity for the reorganization of the legal system.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2005년도 춘계 학술발표대회
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• pp.94-95
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• 2005

• 한국환경보건학회지
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• 제46권6호
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• pp.636-645
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• 2020

Objectives: This study was performed to find phytoncide (monoterpene) emission characteristics and weather factors for application in prediction modeling for phytoncide weather services. Methods: From 2017 to 2019, one coniferous forest and one deciduous forest were selected to investigate the monthly emission characteristics and identify the correlation with weather factors. Research items were analyzed for 11 species known to be emitting the most monoterpenes. Results: Phytoncide (monoterpene) began to increase in April when trees were activated and continued to be released until November. The concentration range of monoterpene in deciduous forests was 0.0 to 427.4 ng/S㎥ and coniferous forests was 0.0 to 1,776.8 ng/S㎥. Phytoncide emission concentrations in deciduous forests were 20 to 90 percent of those in coniferous forests, and averaged 39 percent overall. The correlation between monoterpene and temperature was very close, with 0.835 for the broadleaf forest and 0.875 for the coniferous forest. Monoterpene and humidity were found to be 0.731 for the broadleaf forest and 0.681 for the coniferous forest, while wind speed showed a negative correlation of -0.482 and -0.424, respectively. Regression of temperature with phytoncide showed that the coefficient of determination (r2) was highly correlated with 0.75 for the broadleaf forest and 0.80 for the coniferous forest. Not only is phytoncide concentration affected by temperature, humidity, and wind speed, but also rainfall over the preceeding one to three days. Nearby rainfall on the day of sampling was found to have a direct effect on the physiological activities of the trees. Conclusions: Overall, if the values of monoterpene and temperature, humidity, and wind speed are used as basic factors, and rainfall from one to three days previous is replaced with complementary values, it is believed that the numerical analysis and modeling of daily and monthly phytoncide will be possible.

• Journal of the Korean Wood Science and Technology
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• 제50권3호
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• pp.167-178
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• 2022

To investigate the influence of manufacturing environment on bonding performance of mixed cross laminated wood (CLT) using polyurethane (PUR) adhesive, a boiling water soak delamination test according to the temperature and relative humidity was conducted. The 5-ply mixed CLT consisted of Japanese Larch for external and middle layer and yellow poplar for internal layer. The PUR adhesives with different opening times of 10 and 30 minutes were used. The mixed CLT was manufactured according to pressing times of PUR and manufacturing environments of summer and winter. In case of summer environment, the delamination rate of the mixed CLT with pressing time of 4 hours using a PUR adhesive with open time of 10 minutes met the requirements of KS F 2081. In case of winter environment, the delamination rate of the mixed CLT didn't meet the requirements of KS standard. However, it was possible to confirm the effect of improving the adhesive performance by adjusting the pressing time according to the open time of the adhesive under the manufacturing conditions. The delamination rate of CLT with open time 30 minutes PUR, manufactured by indirect moisture supply methods was 11.2% better than direct moisture supply methods. As a result of delamination test in the same condition of relative humidity and adhesive, it was found that the temperature of manufacturing environment influences the adhesive performance.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2011년도 학술발표회
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• pp.44-44
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• 2011

• 한국환경농학회지
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• 제26권2호
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• pp.149-158
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• 2007

본 연구는 금원산 자연휴양림 산림식생의 층위별 종 조성을 파악하여 산림자원 관리에 필요한 기초자료를 제공할 목적으로 수행되었다. 금원산 자연휴양림의 교목층과 아교목층은 각각 27종과 44종으로 이루어져 있는 것으로 분석되었다. 층위별 중요치는 교목층의 경우 신갈나무와 졸참나무가 가장 높았으며, 아교목층은 당단풍의 중요치가 가장 높은 것으로 나타났다. 관목층과 초본층의 출현수종은 71종과 69종으로 각각 조사되었다. 종다양도와 균재도는 $1.0391\sim1.5403$ $0.7259\sim0.8320$로 각각 분석되었다. 층위별 우점도는 교목층 0.2741, 아교목층 0.2440, 관목층 0.1680, 초본층 0.1702로 금원산 자연휴양림은 전층에서 다수의 종이 우점하고 있는 것으로 나타났다. 금원산 자연휴양림의 식생구조 분석 결과는 향후 산림자원의 생태적 관리방안을 마련하는데 기초정보로 활용될 수 있을 것이다.

• 한국환경복원기술학회지
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• 제3권1호
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• pp.80-90
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• 2000

This study was carried out to introduce current status and development strategy for an environmental restoration of stream side in Japan, and to consider a methodology which could be effectively applied for the environmental restoration of stream side in Korea. Since the end of 20th century, the native ecology and landscape of Japan remained only a limited areas such as stream side, water side and forest areas. Therefore, recently the works of forest conservation and erosion control of environmental restoration on stream side tended to increased. The strategic prospects of environmental restoration in Japan were summarized as follows : 1. From the ecological point of view, we have to develop a certain method and technology in construction of forest conservation and erosion control to prevent environmental problem from erosion control works. 2. We have to restore not only a continuity of stream side forest from a primitive area to an estuary but also the stream side forest to preserve and restore a stream side vegetation on a primitive watershed areas. 3. We have to improve a method of construction or removal of a structure which were constructed in the stream to restore a water side environment and an interaction system for an integration on a forest land, stream, and erosion control. Additionally, we have to establish an integrated evaluation method and an enforcement system after investigation of influences on natural environment, stream, and forest etc. 4. We have to conduct an integrated research to investigate the ecosystem of stream side, and construct environmentally friendly water park and erosion control park which considered natural environment and its landscape. Additionally, we need to introduce and adopt a natural style stream construction method to restore a water side areas.

• 한국환경복원기술학회지
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• 제24권3호
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• pp.33-47
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• 2021

This study was conducted to investigate the influence of eco-friendly restoration in forested bog on the structure of benthic macroinvertebrate community. The benthic macroinvertebrates collected from the surveyed sites were composed of 1,071 individuals, 60 species, 40 families, 13 orders, 6 classes and 5 phyla. At the control and Site 3(small dam), the number of species and individuals were larger than that of other sites, and EPT group ratio was same as well. Considered by index, the dominance index (DI) was found the highest at the biotope area. The diversity index (H') and richness index (RI) were the highest at the control and Site 3. In addition, the ecological score of benthic macroinvertebrate (ESB) showed the highest at site 3, while the lowest at biotope area. The stability and recovery of benthic macrointebrates showed different according to restoration types at forested bog. After restoration project, the benthic macroinvertebrates were observed to get recovery at Site 3, and to have the highest communities stability at control and Site 3. At biotope areas (Site 4, Site 5 and Site 6) communities stability were the lowest, but showed different community stability values according to the presence of water. It is confirmed that the eco-friendly restoration projects indeed provided the better environment for the inhabitation of benthic macroinvertebrate community. The change of community index depending on the restoration projects suggests that the eco-friendly restoration can provide a more suitable environment for benthic macroinvertebrate ecosystem that prefers the stream environment.