• Forest Science and Technology
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• 제14권4호
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• pp.181-191
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• 2018

This study was carried out in the teaching and research forest of the University of Dschang in Belabo, with the aim of analysing land-cover and land-use changes as well as carbon stocks dynamic. The databases used are composed of three Landsat satellite images (5TM of 1984, 7ETM + of 2000 and 8OLI of 2016), enhanced by field missions. Satellite images were processed using ENVI and ArcGIS software. Interview, focus group discussion methods and participatory mapping were used to identify the activities carried out by the local population. An inventory design consisting of four transects was used to measure dendrometric parameters and to identify land-use types. An estimation of carbon stocks in aboveground and underground woody biomass was made using allometric models based on non-destructive method. Dynamic of land-cover showed that the average annual rate of deforestation is 0.48%. The main activities at the base of this change are agriculture, house built-up and logging. Seven types of land-use were identified; adult secondary forests (64.10%), young secondary forests (7.54%), wetlands (7.39%), fallows (3.63%), savannahs (9.59%), cocoa farms (4.28%) and mixed crop farms (3.47%). Adult secondary forests had the highest amount of carbon ($250.75\;t\;C\;ha^{-1}$). This value has decreased by more than 60% for mixed crop farms ($94.67\;t\;C\;ha^{-1}$), showing the impact of agricultural activities on both forest cover and carbon stocks. Agroforestry systems that allow conservation and introduction of woody species should be encouraged as part of a participatory management strategy of this forest.

• Journal of Forest and Environmental Science
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• 제30권3호
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• pp.293-300
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• 2014

An explanatory survey was conducted to assess the contribution of palm species in carbon sequestration in the homegarden of the Sylhet Metropolitan City Corporation of Bangladesh. Assessment was done by means of two stage random sampling. A total of 10 housing area were selected randomly for the study and 4 common palm tree species were found abundantly. From the observations abundance of palm trees [Areca catechu (175/housing area), Cocos nucifera (145/housing area), Borassus flabellifer (124/housing area) and Phoenix sylvestris (27/housing area)] were found higher in all homesteads in comparison with other species. Study revealed that total organic carbon (MTOC mt/ha) was highest in Cocos nucifera (12.48 mt/ha), followed by Areca catechu (4.20 mt/ha), Borassus flabellifer (3.02 mt/ha) and Phoenix sylvestris (0.59 mt/ha). Total amount of organic carbon stored by palm trees in homestead areas was found 20.28 metric ton/ hector in the study area. Study revealed that palm trees of homestead forest accumulate a good amount of biomass and is a good sinker of organic carbon from the atmosphere. Proper management of palm trees will help to improve the local, national and international community through carbon sequestration.

• 한국농림기상학회지
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• 제10권3호
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• pp.107-112
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• 2008

"Jeung-Bo-San-Lim-Gyeong-Je" (meaning "Revised Forest Management") has been well recognized as the informative document that introduces scientific knowledge and experiences of Korean ancestors regarding weather and climate. The tradition of Gwan-Cheon-Mang-Gi(i.e., empirical forecasting of short-term weather phenomena based on the status of cloud or sky) has been continuously utilized as a civilian weather forecasting method and even for very short-term weather prediction by operational forecasters these days. This agricultural technology textbook, published during the Great King Youngjo in Chosun-Dynasty, may be regarded as a poorly written document from the modern standpoint. Nonetheless, this study demonstrates that by and large the empirical knowledge contained in the book is indeed science based although their applications are limited to several hours for local forecasts in agricultural practices and daily living. For example, the wisdom of keeping water at an optimum level in a paddy field after sowing to prevent young seedlings from late frost damages was not at all different from the present technique of vinyl covered seedling nursery.

• 한국환경생태학회지
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• 제32권5호
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• pp.532-540
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• 2018

중요도-만족도 분석방법은 만족도 향상을 위해 관리 우선순위를 선정할 수 있는 간단하고 효과적인 방법이다. 본 연구는 이중에서 IPA-Kano 모델을 적용하여 천연기념물의 방문 만족 속성과 관리 방안을 연계하고 방문 만족도 향상을 위한 관리 개선 우선순위 선정을 목적으로 한다. 방문 만족 속성 14개를 기본요소, 실행요소, 매력요소로 구분하고 요소별 성취도(만족도)에 따른 개선 우선순위를 도출하였다. 서천 마량리 동백나무 숲 관리의 기본요소는 '자연환경', '안내소 안내직원'이며, 중요 실행요소에는 '아름다운 경관', '탐방시설', '숲의 관리상태', '접근성', '역사문화자원'이 해당된다. 매력요소는 '천연기념물의 가치', '주변 관광지', '적정 입장료'로 나타났다. 성취도에 따른 개선 우선순위는 '안내소 안내직원' > '접근성' > '자연환경' > '탐방시설', '역사문화자원', '숲 관리상태', '아름다운 경관' > '적정입장료', '주변 관광지' > '천연기념물의 가치' 순으로 나타났다. 연구결과를 바탕으로 천연기념물 관리 시 한정된 자원과 예산, 인력을 효율적으로 배치하기 위한 우선순위를 제안하였다.

• 한국환경생태학회지
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• 제28권3호
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• pp.374-380
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• 2014

본 연구는 최근 우리나라 자연환경 기반 휴양시설의 중요한 공급요소로서 숲길의 조성과 운영에 대한 지역주민들의 태도을 파악하여 향후 체계적인 숲길운영을 위한 기초자료 제공을 목적으로 수행되었다. 이를 위해, 지리산 둘레길을 주변에 거주하는 지역주민 대상의 설문조사를 실시하였다. 조사결과, 지리산둘레길 조성 사업이 지역사회에 미치는 영향요인으로서 경제 환경 측면의 긍정적 영향과 부정적 영향의 4가지 요인이 도출되었다. 지역주민은 숲길 조성이 지역경제에는 긍정적인 영향을 미치고 있는 것으로 인식하였다. 반면에 숲길조성의 환경적 영향에는 부정적인 태도를 보였다. 지역주민이 참여하고자 하는 서비스 업종은 방문객이 선호하는 서비스인 지역 숙박업으로 나타났다. 그러나 이러한 관광서비스 업종은 아직 지역사회의 숲길 연계 사업구조로서 취약하여 향후 적합한 지역 사업모델에 대한 전문적이고 체계적인 접근이 필요할 것으로 사료된다.

• 한국환경복원기술학회지
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• 제13권6호
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• pp.13-24
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• 2010

Beopseongpo has been one of the most thriving ports of the Jeolla region since the Goryeo Dynasty (918-1392). During the time of King Seongjong (r. 1469-1494) of Choseon Dynasty, a navy garrison had been deployed and the port was named Beopseongjin, as recorded in the 1485 edition of Grand code for state administration (Gyeongguk daejeon). Dangsan forests and Bibo forests have been maintained by local residents since hundreds of years ago. Dangsan forests have been applied to the scale of government and public offices. The objectives of this study were to understand the characteristics of the "Wooded Fortress of Beopseongjin in Yeonggwang" as "Scenic Site No. 22", and to investigate the conservational problem of the wooded fortress of Beopseongjin and seashore. The "Wooded fortress of Beopseongjin in Yeonggwang" consists of a Dangsan forest and two Bibo forests. But, the presence of the Dangsan forest has not been well known to the public. Although the wooded fortress has been somewhat disturbed by cultural activities, the Dangsan rituals have been held until the present every January 15 by lunar calendar. On the other hand, the seashore in front of Beopseongpo plays an important role as a scenic view. It was one of the reason that the "Wooded fortress of Beopseongjin in Yeonggwang" had been designated as a national cultural property of "Scenic Sites". However, the sandbar was reclaimed in 2009 to build commercial buildings. An integrated plan should be prepared to conserve the landscape of "Wooded fortress of Beopseongjin in Yeonggwang", which requires close partnership among local residents, experts, and local government. At present, four new buildings have been built. Although we have lost the sandbar, it is indispensable to secure the visibility of Wooded Fortress of Beopseongjin at the entrance of the village.

• 농촌계획
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• 제20권4호
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• pp.145-155
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• 2014

Since greenhouse gas emissions increase continuously, the authorities have needed climate change countermeasure for adapting the acceleration of climate change damages. According to "Framework Act on Low Carbon, Green Growth", Korean local governments should have established the implementation plan of climate change adaptation. These guidelines which is the implementation plan of climate change adaptation should be established countermeasure in 7 fields such as Health, Digester/Catastrophe, Agriculture, Forest, Ecosystem, Water Management and Marine/Fisheries. Basically the Korean local governments expose vulnerable financial condition, therefore the authorities might be assessed the vulnerability by local regions and fields, in order to establish an efficient implementation plan of climate change adaptation. Based on this concepts, this research used 3 methods which are LCCGIS, questionnaire survey analysis and analysis of existing data for the multiphasic vulnerable assessment. This study was verified the correlation among 7 elements of climate change vulnerability by 3 analysis methods, in order to respond climate change vulnerability in rural areas, Seocheon-gun. If the regions were evaluated as a vulnerable area by two or more evaluation methods in the results of 3 methods' comparison and evaluation, those areas were selected by vulnerable area. As a result, the vulnerable area of heavy rain and flood was Janghang-eup and Maseo-myeon, the vulnerable area of typhoon was Janghang-eup, Masan-myeon and Seo-myeon. 3 regions (i.e. Janghang-eup, Biin-myeon, Seo-myeon) were vulnerable to coastal flooding, moreover Masan-myeon, Pangyo-myeon and Biin-myeon exposed to vulnerability of landslide. In addition, Pangyo-myeon, Biin-myeon and Masan-myeon was evaluated vulnerable to forest fire, as well as the 3 sites; Masan-myeon, Masan-myeon and Pangyo-myeon was identified vulnerable to ecosystem. Lastly, 3 regions (i.e. Janghang-eup, Masan-myeon and Masan-myeon) showed vulnerable to flood control, additionally Janghang-eup and Seo-myeon was vulnerable to water supply. However, all region was evaluated vulnerable to water quality separately. In a nutshell this paper aims at deriving regions which expose climate change vulnerabilities by multiphasic vulnerable assessment of climate change, and comparing-evaluating the assessments.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제2권3호
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• pp.144-152
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• 2021

Sanankerto is one of pilot projects for tourism villages in Indonesia due to its natural tourism potential with a 24-ha bamboo forest located in Boon Pring Andeman area. However, the distribution of existing bamboo has never been identified or mapped. Thus, the mana gement is facing difficulty in planning and developing tourism potential as well as spatial management in the area. Therefore, the objectives of this study were to identify and analyze the structure of bamboo vegetation in the Boon Pring Tourism village an d to perform vegetation mapping. The type of research was descriptive exploratory with a cluster sampling technique (i.e., a two-stage cluster) covering an area of ± 10 ha. Bamboo vegetation analysis was performed by calculating diversity index (H'), evenness index (E), and Species Richness index (R). Data were collected through observation and interviews with local people and the manager to determine zonation division. Mapping of bamboo vegetation based on zoning was processed into thematic maps using ArcG is 10.3. Micro climatic factors were measured with three replications for each sub -cluster. Data were analyzed descriptively and quantitatively. Nine species of bamboo identified. Diversity, evenness, and species richness indices differed at each location. Activities of local communities, tourists, and manager determined the presence, number, and distribution of bamboo species. These bamboo distribution maps in three zoning (utilization, buffer, and core) can be used by manager for planning and developing natural tourism potential.

• Journal of Ecology and Environment
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• 제39권1호
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• pp.1-10
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• 2016

Despite it has been mentioned that the successful restoration in landscape level was achieved in the Young-il soil erosion control project, quantitative evaluation of restored plant communities (Alnus firma as introduced species and Pinus thunbergii as native species) was hardly founded. Light availability, litter and woody debris cover, and forest structure and composition were determined for 500 m² band-quadrat in three forest types. Abiotic factors of Q. serrata stands, as reference forest, and A. firma stands were similar but not for P. thunbergii stands. There were no significant difference on mean stem density (stems ha^-1, H = 3.6, p = 0.162), and the mean basal area of each stand had marginal significance (m² ha^-1, H = 5.7, p = 0.058) among stands as total basal area was higher with the order of A. firma (21.4 m² ha^-1), P. thunbergii (19.8 m² ha^-1) and Q. serrata (16.2 m² ha^-1). Restoration of vegetation structure was more effective in fast-growing and N-fixing A. firma, as introduced species plantation. However, result of MRPP, NMS ordination and ISPAN for herbaceous layer, not for tree and shrub species composition, indicated that restoration of ground vegetation was likely influenced highly from local environment. Propagule availability from landscape context such as connectedness to natural vegetation and management practices in restored isolated stands are available explanations for restoration effects and gaps between restored plantations and secondary oak forest.

• 한국약용작물학회지
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• 제27권1호
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• pp.17-23
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• 2019

Background: Cnidium officinale Makino and Ligusticum chuanxiong Hort. are important medicinal crops in Korea. However, there is insufficient information on the identification of thrips, which attack these plants. Until now, one species of thrips has been recorded as a main pest. Methods and Results: To identify the thrips emerging in C. officinale Makino and L. chuanxiong Hort., these plants were independently cultivated in two local areas. Thirty individuals of each plant species were selected randomly and surveyed for the presence of thrips. After confirming the existence of thrips, 100 thrips individuals were collected from each crop using the beating method. To identify thrips species, we performed PCR-restriction fragment length polymorphism (RFLP)-based analysis using ITS2 primer sets. Six thrips species were identified: western flower thrips (Frankliniella occidentalis), flower thrips (F. intonsa), onion thrips (Thrips tabaci), chrysanthemum thrips (T. nigropilosus), chilli thrips (Scirtothrips dorsalis), and grass thrips (Anaphothrips obscurus). The proportion of these species differed between the host plant species. Conclusions: Six thrips species were major pests of two medicinal crops. Integrated pest management is required to control these thrips species, and will enhance the yield and quality of C. officinale and L. chuanxiong.