• Journal of Forest and Environmental Science
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• 제33권4호
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• pp.295-304
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• 2017

This study compared and analyzed the construction of a land use change matrix for the Intergovernmental Panel on Climate Change's (IPCC) land use, land use change, and forestry area (LULUCF). We used National Forest Inventory (NFI) permanent sample plots (with a sample intensity of 4 km) and permanent sample plots with 500 m sampling intensity. The land use change matrix was formed using the point sampling method, Level-2 Land Cover Maps, and forest aerial photographs (3rd and 4th series). The land use change matrix using the land cover map indicated that the annual change in area was the highest for forests and cropland; the cropland area decreased over time. We evaluated the uncertainty of the land use change matrix. Our results indicated that the forest land use, which had the most sampling, had the lowest uncertainty, while the grassland and wetlands had the highest uncertainty and the least sampling. The uncertainty was higher for the 4 km sampling intensity than for the 500 m sampling intensity, which indicates the importance of selecting the appropriate sample size when constructing a national land use change matrix.

• 한국산림과학회지
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• 제104권3호
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• pp.503-511
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• 2015

본 연구의 목적은 효율적인 산림경영과 고령산주의 생활안정지원을 위한 산지은행제도의 도입방안을 제시하는 것이다. 산지은행제도는 분산된 소규모 산림, 산주의 고령화 및 부재산주 증가 등의 문제점을 해결하는데 도움을 줄 것으로 기대하고 있다. 본 연구에서는 기존의 유사제도인 농지은행제도의 사업에 대한 검토 및 비교를 토대로 산지은행제도의 개념 및 기본방향, 산지은행의 주요기능 및 사업종류와 범위 설정, 산지은행제도 도입 우선순위 등에 대해서 제안하였다. 산지은행의 주요 사업으로는 산지를 수탁 받아 산주 등에게 중개 알선하는 산지임대차 및 매도수탁사업, 고령 산주의 안정된 노후생활 보장을 위한 산지연금사업, 소규모로 분산된 사유림을 규모화 집단화하여 사유림 경영을 활성화하고 지속가능한 산림경영을 유도하기 위한 산지규모화사업, 경영위기에 처한 임가의 경영회생을 지원하기 위한 경영회생지원사업의 도입을 제안하였다. 마지막으로 산지은행제도 도입 및 사업운영을 위한 문제점과 시행착오를 최소화할 수 있도록 농지은행제도를 통한 시사점과 산지은행제도 도입 및 운영 시 제기될 수 있는 주요 과제에 대해서 검토하였다. 본 연구는 산지은행제도의 기본방향을 설정하고 정책을 수립하는데 크게 기여할 것으로 기대한다.

• Journal of Forest and Environmental Science
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• 제30권4호
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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.

• 한국기후변화학회지
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• 제8권4호
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• pp.329-337
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• 2017

In this study, land-use changes from 1990 to 2010 in Jeju Island by different approaches were produced and compared to suggest a more efficient approach. In a sample-based method, land-use changes were analyzed with different sampling intensities of 2 km and 4 km grids, which were distributed by the fifth National Forest Inventory (NFI5), and their uncertainty was assessed. When comparing the uncertainty for different sampling intensities, the one with the grid of 2 km provided more precise information; ranged from 6.6 to 31.3% of the relative standard error for remaining land-use categories for 20 years. On the other hand, land-cover maps by a wall-to-wall approach were produced by using time-series Landsat imageries. Forest land increased from 34,194 ha to 44,154 ha for 20 years, where about 69% of total forest land were remained as forest land and 19% and 8% within forest lands were converted to grassland and cropland, respectively. In the case of grassland, only about 40% of which were remained as grassland and most of the area were converted to forest land and cropland. When comparing land-cover area by land-use categories with land-use statistics, forest areas were underestimated while areas of cropland and grassland were overestimated. In order to analyze land use change, it is necessary to establish a clear and consistent definition on the six land use classification.

• 한국환경과학회지
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• 제17권3호
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• pp.305-314
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• 2008

As forest land takes up 65% of the Korean peninsula, there have been continuing conflicts between the development and conservation of forest land. As the income level has changed over time, the usage of forest land in society has changed. There has been increasing demands for forest land for urban development and recreational use. On the other hand, a large proportion of the land is required to be preserved for the forest and the natural ecosystem in it. The existing management system for the forest land has been designed focusing on the management of the trees on the land, and not the land itself. Due to this limitation, the current management system of forest land has failed to protect the forest land from being developed indiscreetly, making it difficult to conserve and develop the forest land in an efficient way. A major question in forest land management is how to integrate economic use activities with the supporting ecosystems to maximize performance of the ecological-economic system. In order to promote sustainable use of forest resources, and to achieve efficient forest land management, it is prerequisite to evaluation on forest resources of natural ecosystems. Quantitative measures are needed that signify how necessary the services and products of forested ecosystems are to human endeavors. In this study, the natural wealth provided by forest land was quantified based on emergy synthesis. Emergy is a universal measure of real wealth of the work of nature and society made on a common basis. Thus, Calculations of emergy provide a basis for making choices about environment and economy following the general public policy to maximize real wealth. The goals of forest land management to achieve balance between the ecology and economy of its integrated system and to foster equity among the diverse outcomes of the forest land were assessed with emergy. Emergy was demonstrated to holistically integrated and quantify the interconnections of a coupled nature-human system allowing the goals of ecological balance and outcome equity to be measured quantitatively. Doing so will provide a better understanding of the basis of forest land wealth and the consequences of management decisions.

• 한국가구학회지
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• 제18권2호
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• pp.129-137
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• 2007

Total forest land in Bangladesh is about 2.5 million hectare which is 17% of total land area. Bangladeshi forest is mainly classified into three categories- 1) Hill forest 2) Sal forest and 3) Mangroves. This forest land area is decreasing day by day. But in past decayed due to some policies, the total forest land area is increasing slowly. By this planning both government and the local people in the community are being benefited. This paper mainly discussed about the past, present and future trend of forest condition, forest land uses, sustainable forest planning and forest management.

• Journal of Forest and Environmental Science
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• 제36권3호
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• pp.199-206
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• 2020

Satchari National Park is one of the most biodiverse forest in Bangladesh and home of many endangered flora and fauna. 206 tons of CO₂ per hectare is sequestrated in this national park every year which helps to mitigate climate issues. As people living near the area are dependent on this forest, degradation has become a regular phenomenon destroying the forest biodiversity by altering its forest cover. So, it is important to map land cover quickly and accurately for the sustainable management of Satchari National Park. The main objective of this study was to obtain information on land cover change using remote sensing data. Combination of unsupervised NDVI classification and supervised classification using maximum likelihood is followed in this study to find out land cover map. The analysis showed that the land cover is gradually converting from one land use type to another. Dense forest becoming degraded forest or bare land. Although it was slowed down by the establishment of 'National Park' on the study site, forecasting shows that it is not enough to mitigate forest degradation. Legal steps and proper management strategies should be taken to mitigate causes of degradation such as illegal felling.

• 한국지리정보학회지
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• 제9권3호
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• pp.46-57
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• 2006

연구에서는 2007년 고시예정인 산지이용구분도를 정확하고 효율적으로 작성하기 위하여 GIS에 기반한 산지이용구분도 작성방법을 수립하였다. 산지이용구분도 작성절차는 임지추출 및 보완, 법정용도지역 구분, 기타 보전 및 준보전산지 구분, 지적기반 수치산지이용구분도 작성, 산지이용구분도(안) 편집 및 출력, 검수 및 보완 등 6단계로 구성하였다. 수립된 작성절차를 적용하여 경기도 화성시 지역을 대상으로 축척 1:25,000 14도엽 및 1:5,000 173도엽의 산지이용구분도와 산지이용구분대장을 작성하였다.

• 한국기후변화학회지
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• 제6권1호
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• pp.33-40
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• 2015

Forests are to be recognized as an important carbon sink under the UNFCCC that consist of above- and below-biomass, dead organic matter (DOM) such as dead wood and litter, and soil organic matter (SOM). In order to asses for DOM and SOM, however, it is relevant to land-use change matrices over last 20 years for each land-use category. In this study, a land-use change matrix was produced and its uncertainty was assessed using a point sampling technique with permanent sample plots in national forest inventory at Chungbuk province. With point sampling estimated areas at 2012 year for each land-use category were significantly similar to the true areas by given six land-use categories. Relative standard error in terms of uncertainty of land-use change among land-use categories ranged in 4.3~44.4%, excluding the other land. Forest and cropland covered relatively large areas showed lower uncertainty compared to the other land-use categories. This result showed that selected permanent samples in the NFI are able to support for producing land-use change matrix at a national or province level. If the $6^{th}$ NFI data are fully collected, the uncertainty of estimated area should be improved.

• 한국산림과학회지
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• 제103권2호
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• pp.278-286
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• 2014

우리나라 산림의 소규모 분산적 임업경영 여건 개선과 산주의 고령화, 부재산주 증가 등으로 인한 임업경영의 문제점을 개선하기 위한 방안으로 산림의 매매, 임대차 등을 통해 임업경영 규모의 확대와 방치된 산림의 효율적인 경영관리와 산림을 담보로 한 임업인 노후생활 안정지원을 위해 산지은행제도 도입이 필요한 시점이다. 따라서 본 연구에서는 산지은행제도의 도입 타당성 및 수요 등을 파악하기 위해 산주, 비산주 및 귀농 귀촌인을 대상으로 산지은행제도 도입의 필요성, 기대효과, 이용의향, 도입방안 등에 대한 설문조사를 실시하였다. 소재산주 262명, 부재산주 152명, 비산주 427명, 귀농 귀촌인 101명을 대상으로 한 설문조사 결과, 산지은행제도 도입이 필요하다고 응답한 비율이 산주 77.5%, 비산주 63.8%로 나타났으며, 산주와 비산주 모두 산지은행제도에서 이용의향이 있거나 수행하기를 기대하는 사업으로 연금과 임대사업을 선호하였다. 귀농 귀촌인의 설문조사에서도 약 75%의 귀농 귀촌인들이 산지은행제도가 농산촌 생활에 도움을 줄 것으로 기대하였으며, 임차와 매수사업에 대한 사업이용 의향이 높게 나타났다. 본 연구를 통한 산지은행제도 도입의 타당성 분석결과를 바탕으로 산지은행 정책수립에 필요한 자료제공은 물론 산지은행제도의 기본방향, 주요기능, 사업종류와 범위 설정 등을 결정하는데 있어서 도움이 될 것으로 기대한다.