• Title/Summary/Keyword: FOREST

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The Classification and Species Diversity of Forest Cover Types in the Natural Forest of the Middle Part of Baekdudaegan (백두대간 중부권역 천연림의 산림피복형 분류와 종다양성)

  • Hwang, Kwang-Mo;Chung, Sang-Hoon;Kim, Ji-Hong
    • Journal of Korean Society of Forest Science
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    • v.104 no.1
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    • pp.14-25
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    • 2015
  • This study was carried out to classify forest communities and to aggregate forest cover types for the complex and diversified natural forest areas of Guryongsan, Sobaeksan, Baekhwasan, Sokrisan, and Baekhaksan in the middle part of Baekdudaegan. The vegetation data were collected by point-centered quarter sampling method. One thousand one hundred fourteen sample points were subjected to cluster analysis to classify 27 forest communities, which were aggregated into 7 representative forest cover types on the basis of community similarity from composition of canopy species. They were Quercus mongolica forest cover type, mixed mesophytic forest cover type, Q. variabilis forest cover type, Pinus densiflora forest cover type, the others deciduous forest cover type, Q. serrata forest cover type, and subalpine forest cover type. The Q. mongolica forest cover type was most widely distributed in the study areas. It was assumed that abundance of Q. mongolica might be negatively associated with species diversity. Mixed mesophytic forest cover type and the others deciduous forest cover type were commonly distributed in the areas of valley, on the other hand, Q. mongolica cover type and P. densiflora cover type tended to be distributed in the areas of ridge.

Interpretation of the Forest Therapy Process and Effect Verification through KeyWord Analysis of Literature on Forest Therapy (산림치유 효과 검증 연구의 주요어 분석을 통한 치유 발현과정 해석)

  • Park, Kyeong-Ja;Shin, Chang-Seob;Kim, Dongsoo
    • Journal of Korean Society of Forest Science
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    • v.110 no.1
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    • pp.82-90
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    • 2021
  • In this study, the validity of the forest therapy process, in which forest activities using forest therapy factors lead to immunity promotion and health promotion, was analyzed theoretically and qualitatively to refine and systemize the forest therapy concept. Research and analysis data were collected from the websites of institutions related to forest therapy; 33 theses and 33 original research articles from 2000 to March 2020 were searched for forest therapy key words, as well as the prize winning work of the 2016 forest therapy experience essay. A word cloud was generated by frequency of nouns and adjectives and from the key words in the web pages, theses, articles, and the forest therapy experience essay. Through interpretation of word frequency, the systemic flow of forest therapy was defined. The results suggest that the source of forest therapy's power was a positive experience of the forest and an improved attitude toward nature as well as forest therapeutic factors. The therapeutic effect is maximized through the forest healing program, leading to physical and mental resilience and resistance; consequently, health and immunity are promoted. From this study, forest therapy is proposed as "a health promotion activity for the psychological, physical, and spiritual resilience of the subjects through various environmental factors of the forest, positive experiences, and attitudes toward the forest."

Mountain Meteorology Data for Forest Disaster Prevention and Forest Management (산림재해 방지와 산림관리를 위한 산악기상정보)

  • Keunchang, Jang;Sunghyun, Min;Inhye, Kim;Junghwa, Chun;Myoungsoo, Won
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.24 no.4
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    • pp.346-352
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    • 2022
  • Mountain meteorology in South Korea that is covered mountains with complex terrain is important for understanding and managing the forest disaster and forest ecosystems. In particular, recent changes in dryness and/or rainfall intensity due to climate change may cause an increase in the possibility of forest disasters. Therefore, accurate monitoring of mountain meteorology is needed for efficient forest management. Korea Forest Service (KFS) is establishing the Automatic Mountain Meteorology Observation Stations (AMOS) in the mountain regions since 2012. 464 AMOSs are observing various meteorological variables such as air temperature, relative humidity, wind speed and direction, precipitation, soil temperature, and air pressure for every minute, which is conducted the quality control (QC) to retain data reliability. QC process includes the physical limit test, step test, internal consistency test, persistence test, climate range test, and median filter test. All of AMOS observations are open to use, which can be found from the Korean Mountain Meteorology Information System (KoMIS, http://mtweather.nifos.go.kr/) of the National Institute of Forest Science and the Public Data Portal (https://public.go.kr/). AMOS observations with guaranteed quality can be used in various forest fields including the public safety, forest recreation, forest leisure activities, etc., and can contribute to the advancement of forest science and technology. In this paper, a series of processes are introduced to collect and use the AMOS dataset in the mountain region in South Korea.

Change in the Concrete Strength of Forest Road Drainage Systems Caused by Forest Fires (산불로 인한 임도 배수시설의 콘크리트 강도 변화)

  • Ye Jun Choe;Jin-Seong Hwang;Young-In Hwang;Hyeon-Jun Jeon;Hyeong-Keun Kweon;Joon-Woo Lee
    • Journal of Korean Society of Forest Science
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    • v.112 no.4
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    • pp.451-458
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    • 2023
  • As forest fires continue to increase in scale worldwide, the importance of forest roads in relation to forest fire prevention and suppression has become increasingly evident. To ensure effective functioning during a forest fire disaster, it is crucial to apply appropriate road planning and ensure roads' structural integrity. However, previous studies have predominantly focused on the impact of forest fires on firebreak efficacy and road placement, meaning that insufficient attention has been paid to ensuring the safety of these facilities. Therefore, this study sought to compare the strength of concrete facilities within areas damaged by forest fires over the past three years by using the rebound hammer test to identify signs of thermal degradation. The results revealed that concrete facilities damaged by forest fires exhibited significantly lower strength (15.6 MPa) when compared with undamaged facilities (18.0 MPa) (p<0.001), and this trend was consistent across all the target facilities. Consequently, it is recommended that safety assessment criteria for concrete forest road facilities be established to prevent secondary disasters following forest fire damage. Moreover, continuous monitoring and research involving indoor experiments are imperative in terms of enhancing the stability of forest road structures. It is expected that such research will lead to the development of more effective strategies for forest fire prevention and suppression.

Establishment of Optimal Timber Harvesting Model by Using Goal Programming

  • Jang, Jae-Young;Choi, Sang-Hyun;Woo, Jong-Choon
    • Journal of Forest and Environmental Science
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    • v.28 no.1
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    • pp.30-36
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    • 2012
  • The total yield of Pinus koraiensis stands was reviewed along forest function by using goal programming, which is one of the operations research techniques. The 4 kinds of management goals are set to identify timber production in the Research Forest of Kangwon National University. As a result, scenario 1 was estimated the best timber production over 2,073 ha area and also 588 ha in the third quarter was showed the most timber harvest. The rate of timber harvest was separated by 10 to 50 percent in non-timber forest function in the scenario 1 and that model was applied to the Research Forest of Kangwon National University. The structure of the area and volume is showed to be balanced quarterly when rate of timber harvest at 10 to 20 percent.

Development of GRAT-Tourism Evaluation Indicators for Forest Management Revitalization of Rural Areas

  • Ahn, Seung-Il;Choi, Sang-Hyun;Woo, Hee-Sung;Woo, Jong-Choon
    • Journal of Forest and Environmental Science
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    • v.28 no.1
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    • pp.19-23
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    • 2012
  • Recently the Korean government provided forest recreation areas through developing evaluation index of rural areas amenity resources, forest therapy and recreational forest for revitalization of rural areas and national health promotion. However, what the public wants is just one place which includes all recreational facilities. GRAT tourism means Green, Rest and Therapy-Tourism. It is a new concept of recreational forests. This study defines GRAT-Tourism, the new concept of recreational activity and discusses the development of the GRAT-Tourism Evaluation Index.

Land Tenure Reform and Its Implication for the Forest. Case Study from Oromia Regional State of Ethiopia

  • Mohammed, Abrar Juhar;Inoue, Makoto
    • Journal of Forest and Environmental Science
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    • v.30 no.4
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    • pp.393-404
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    • 2014
  • With consideration of proximate and intricate relationships among rural livelihood, farm land and forestry; this paper examined impact of land tenure reform on local peoples' forest dependency by taking Ethiopia as case study. The post 1975 major land tenure reform and associated activities such as land distribution and forest demarcation were found to be short of minimizing pressure on the forest as has been evidenced by percentage of new households established inside the forest and current level of dependency on the forest. With most of recently established households all making up the poor and very poor categories, together with overall of household composition which is dominated by dependent members coupled by current land tenure system that tie farmers with their land, future dependency on the already diminished forest seems to increase unabated. Reconsidering the existing land tenure system backed by policy for livelihood diversification, improvement in rural education and awareness on demographic issues can minimize future dependency on the forest.

A Study on the Actual Education Condition and Improvement of Education Program about Forest Fire (산불교육실태 및 개선방안에 관한 연구)

  • Lee, Si-Young
    • Fire Science and Engineering
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    • v.24 no.6
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    • pp.13-19
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    • 2010
  • In this study, surveys of forest fire division of eight local government about a education program for forest fire prevention and attacking of Forest Human Resources Development Institutes were conducted. In the result, questionnaire answers about improvements of curriculum, requested subject, training camp for forest fire attacking and others were analyzed. So, we made an alternative proposal of education program about forest fire for actively meeting a change of forest condition and forest fire management policy, strengthening of ability that officers in forest fire division required, and enhancing a efficiency.

Causality of Forest Inventory and Roundwood Supply in Korea

  • Kim, Dong-Jun;Kim, Eui-Gyeong
    • Journal of Korean Society of Forest Science
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    • v.95 no.5
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    • pp.539-542
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    • 2006
  • This study confirmed econometrically the causality of forest inventory and roundwood supply using Korean data. In general, forest inventory is included as explanatory variable in roundwood supply function. We checked whether each series is stationary or not before using it in the model, and determined whether the combination of the series is comtegrated. The relationship between forest inventory and roundwood supply was represented by bivariate vector autoregressive model. The causality of forest evidence of the causal relationship between change in forest inventory and change in roundwood supply in Korea. That is, change in forest inventory does not cause change in roundwood supply in Korea. It seems reasonable not to include forest inventory as explanatory variable in roundwood supply function in Korea.