• Journal of Korean Society of Forest Science
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• v.109 no.3
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• pp.350-360
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• 2020

The purpose of this study was to identify and prioritize the key indicators and drivers of forest thinning. The research for this study was designed in two-phases: 1) sequential, exploratory, mixed methods research that was initiated with a qualitative phase (Delphi technique), and 2) the quantitative phase (Analytic Hierarchy Process technique). Results indicated that management and planning were the most important factors in the first level of criteria among the "management and planning," "directing and monitoring," "supervision," and "quality of thinning work." On the sub-criteria level, "the quality of forest management planning" was indicated as the most important factor among the ten sub-criteria. Our results have shown that the developed forest thinning evaluation factors were a well-represented characteristic for a variety of forest thinning work in Korea.

• Fire Science and Engineering
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• v.22 no.1
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• pp.45-53
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• 2008

The effect of thinned trees which are produced from forest thinning on forest fire was studied in this work. To investigate the effect of thinning slash, Yang-yang, In-je, and Ga-pyeong-gun were selected as thinning-areas and non-thinning areas. The research was carried out with the variations of tree's types, area's characteristics, thinning strength, thinning types, and pile types of thinned tree. The survey areas of 14 areas were selected at Yangyang-gun(5 areas), Gapyeong-gun(4 areas), and Inje-gun(5 areas), and on-the-spot investigations were carried out at the thinning areas of 9 and the non-thinning areas of 5, respectively. Non-thinning areas of 5, which are adjacent to thinning areas, were selected for the comparison with thinning areas and for the analysis of risk of forest fire. It is considered that forest fire have no chance to diffuse to a tree trunk because the height of thinned trees was lower than 1 m. However, it is considered that forest fire may affect directly to a tree trunk if it spread to piled thinned tree because there was no space between thinned trees and trees. Furthermore, it was found that re-ignition had a chance to occur due to lots of piled thinning trees.

• Fire Science and Engineering
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• v.23 no.4
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• pp.32-39
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• 2009

In this study, 18 plots were selected for particular investigation on Gangneung area and Samcheok area and Uljin area, where forest fire was occurred after thinning in 2007. After selection, a relationship between a damage of forest fire and thinning were compared and analyzed. Many factor such as a damaged species, a thinning or non-thinning, a direction of forest fire head, DBH, a height of tree, a mortality of tree, a leeward scorching ratio, a crown damage ratio, a forest tree standing crop density, a crown base height, a leaving of thinning slash, a location of plot (GPS), elevation, an aspect of slope, an angle of slope, and a topography were measured. Therefore, we analyzed a relationship with forest fire. In the result of this analysis, it was founded that the leeward scorching ratio was 24.7% on thinning area whereas 60.2% on non-thinning area. Subsequently, leeward scorching ratio on thinning area was increased by about 35.5% more than on non-thinning area. In the result of analysis about tree species, a forest of pine tree was more damaged than forest of oak tree. The mortality of tree was increased by about 41.4% on non-thinning area. When stands were close to thinning slashes, these were more damaged by 10${\sim}$20% than other stands for increasing of amount of a combustion material. Especially, as potential of re-ignition increased for more cumulated thinning slash, it will be more important to require a method for a periodical removing or practical utilization of slash.

• Fire Science and Engineering
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• v.21 no.4
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• pp.52-58
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• 2007

The effect of stand-growing-stock characteristics of thinning area and non-thinning area on forest fire was studied in this work. 14 spots were selected from 3 counties such as Yangyang, Injae, and Gapyeong and on-the-spot investigations were performed to evaluate the effect of forest fire. The stand-growing-stock characteristics on the spots were analyzed through the height of tree, breast height diameter, clear length, mortality of branch, forest tree standing crop density, degree of closure, and shrub and grass cover degree. The relation between forest fire and the risk of spread of forest fire were analyzed from the analysis of the stand-growing-stock characteristics. It is considered from this work that the possibility of forest fire is decreased on the thinning area compared to the non-thinning area because of higher clearlength, lower number of tree, lower mortality of branch and higher shrub and grass cover degree.

• 산림경영
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• s.143
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• pp.43-45
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• 2000

새천년을 맞아 첫 번째로 실시하는 제55회 식목일을 계기로 정부는 IMF 경제위기에 따른 실업대책사업중 대표적인 성공한 사업으로 평가된 숲가꾸기공공근로사업을 실업자 구제를 위한 실업대책사업에서 장기 국가정책사업으로 전환하여 본격 추진한다고 밝혔다. 이는 녹화는 되었으나 그동안 예산부족과 인력부족으로 방치하였던 우리 숲을 경제적, 환경적으로 가치있는 자원으로 육성할 수 있도록 숲가꾸기사업을 $\ulcorner$제2의 식목, 숲가꾸기(育林)$\lrcorner$으로 추진하기 위한 것이다. 정부에서 밝힌 바에 따르면 숲가꾸기공공근로사업에 참여하는 근로자중 12천명을 숲가꾸기 전문기술자로 양성하여 전문직업인으로서 숲가꾸기에 참여할 수 있게 되며, 숲가꾸기전문기능인력이 크게 늘어나 녹화된 숲을 조기에 경제림으로 육성하고 선진임업국으로 도약하는 기반이 마련된다.

• Journal of Korean Society of Forest Science
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• v.101 no.4
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• pp.729-736
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• 2012

Korea Forest Service is recently focused on forest tending works for promoting in green jobs. The purpose of forest tending work is not only maintaining ecologically stable forest stand structure but also developing commercial forest. These trends are also emphasized by creation of various benefits and expanding carbon absorption in forest management. For achieving these purposes, Management efficiency of output was analized by the inputs such as labor cost, material cost and expense cost using DEA technique. The results show that, 19 sub-compartments are appeared to be the optimal in the efficiency of the forest tending works among total 52 sub-compartments. Among those there were 5 sub-compartment 8-0-3, 9-3-3, 6-0-3, 7-0-6, 1-0-5 and 3-0-3 to be considered in the high reference. The high reference areas mean those areas which is well accomplished in forest tending works as the desirable model.

• Feed Journal
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• v.4 no.9 s.37
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• pp.88-93
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• 2006

우리나라는 전 국토의 약 64%가 산으로 구성되어 있으며 우리나라 산림에 존재하는 임목의 총량은 4억 9.000만㎣ 이지만 이중 30년생 이하의 어린 나무가 전체 산림의 60%를 차지하는 유령림(幼齡林)으로 구성되어 있다. 유령림은 일정 면적 내에 나무의 개체 수가 지나치게 많고 가늘기 때문에 경제적인 가치가 낮으므로 우리숲의 경제적 가치를 높이기 위해서는 적극적인 숲가꾸기가 필수적이다. 그래서 산림청에서는 우리 산림을 대상으로 지속적인 숲가꾸기 사업을 실시하고 있다.

• Korean Journal of Heritage: History & Science
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• v.53 no.2
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• pp.24-35
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• 2020

This study aims to identify the relationship between termite-damaged cultural heritage sites and the 'Forest Tending Project' based on a comprehensive survey of the status of damage caused by termites and of the Forest Tending Project. It was observed that the Forest Tending Project started in 2004 as a five-year policy project covering over 59% of the nation's forests, which showed the maximum value in 2009 and then gradually decreased. Since then, increased damage to national cultural heritage sites by termites has been confirmed and counter measures have been expanded since 2012. Also, as a result of the National Research Institute of Cultural Heritage surveying the status of termite damage in national cultural heritage sites over these six years, it was identified that about 98% of investigated cultural heritage sites were damaged by termites, about 78% of them were adjacent to forests, and that all 46 national cultural heritage sites which had been included in the 2008 Forest Fire Prevention Cultural Heritage Afforestation Project were damaged by termites. Therefore, it is claimed that the number of termite-damaged cultural heritage sites has increased after an extensive Forest Tending Project was applied on a national scale, and it seems that all cultural heritage areas close to forests are particularly subject to termite-damage due to the number of tree stumps and lumber byproducts which can serve as habitats for the pests.

• 산림경영
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• s.194
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• pp.27-27
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• 2009

• 산림경영
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• s.197
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• pp.32-33
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• 2010