• Title/Summary/Keyword: National Forest

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Study on Forest Functions Classification using GIS - Chunyang National Forest Management Planning - (GIS를 이용한 산림기능구분에 관한 연구 - 춘양 국유림 산림경영계획구를 대상으로 -)

  • Kwon, Soon-Duk;Park, Young-Kyu;Kim, Eun-Hee
    • Journal of the Korean Association of Geographic Information Studies
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    • v.11 no.4
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    • pp.10-21
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    • 2008
  • A forest functions classification map is an essential element for the management planning of national forests. This study was intended to make out the map at the stand level by utilizing the Forest Functions Evaluation Program(FFEP), developed by Korea Forest Research Institute. In this program, the potential of each function was evaluated in each grid cell, and then a forest functions estimation map was generated based on the optimum grid cell values in each sub-compartment unit. Finally, the program produced a forest functions classification map with consideration of the priority of the functions. The final forest functions classification map required for the national forest management planning made out overlapping those results which the rest of the forest classified referring priority functions classification map to national forest manager and classified according to the local administrative guidance and sustainable forest resources management guidance. The results indicated that the forest function classification using the FFEP program could be an efficient tool for providing the data required for national forest management planning. Also this study made a meaningful progress in the forest function classification by considering the local forest administrative guidance and sustainable forest resources management guidance.

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The Development of Climax Index by Analysis of Eco-morphological Characters for Major Deciduous Tree Species

  • Kim, Ji Hong;Chung, Sang Hoon;Lee, Jeong Min;Kim, Se Mi
    • Journal of Forest and Environmental Science
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    • v.28 no.4
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    • pp.199-204
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    • 2012
  • This study was conducted to estimate climax index by eco-morphology for major 36 tree and sub-tree species in natural deciduous forests so as to interpret seral position of each species in the forest community. Fourteen eco-morphological characters which were considered to be associated with successional gradient in the forest were selected for the study. Four levels per character for each species were given on a standardized scale of increasing climax, and the index was computed by the proportion of the sum of total scores, expressed by percent values. With calculated mean value of 54.8 for all indices, Carpinus cordata had the highest index value of 90.5, and Populus davidiana recorded the lowest of 13.2. The most climax group, greater than 70 of the index, contained only 8 species, intermediate group, between 41 to 70 of the index, had 23 species, and the most pioneer group, less than 40 of the index comprised 5 species. The result has noticed that the large number of species would take advantage of most diverse resource and niche in the intermediate stage of the sere in the forest. By cluster analysis all 36 species were subjected to be classified into several species groups which had common similar eco-morphological characteristics. The indices were additionally plotted on the two dimensional graph to recognize the positions related to the light absorption factor and reproduction factor. The climax index of tree and sub-tree species developed by this study could be applied to understand the present status of successional stage on the basis of species composition by the method of summing up the indices. And comparison of forest successional stage among various forest communities could be done by summing up the climax indices of composed species in each community. However, this kind of applied methodology should be limited to the forest of similar species composition and site condition.

A States about Forest Therapy Program in Korean and the Prospect for the Fusion of Korean Medicine with Forestry (산림치유 프로그램의 현황과 학제간 융합가능성에 대한 전망)

  • Hong, Min-Ah;Lee, Han-Gyeul;Han, Eun-Kyung;Kwon, Young-Kyu
    • Korean Journal of Oriental Medicine
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    • v.16 no.3
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    • pp.95-105
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    • 2010
  • Background and Purpose : Forest-Therapy has received attention as a treatment of regulating living habits with the increase of chronic disease. Forest-Therapy and Korean Medicine are in same as their philosophy to adapt to nature and they can suggest new alternative treating of chronic diseases. Now we want to look the possibility of development of Forest-Therapy program adopting Korean Medicine with the analysis of research status and cases of Forest-Therapy. Methods : We searched articles in Korea by using keyword 'Forest-Therapy', 'Forest & Therapy' 'Forest' and 'Therapy' Korean. Results : Even though the domestic research about Forest-Therapy is still insufficient, there is a need of try referring the cases of Germany and Japan. Forest-Therapy program was used to get psychological stability, release stress and treat alcohol diseases. There was some cases that adopt the nature to clinical field actively. The clinical articles were mainly published about stress and health. Conclusions : It seems that running the constitutional program that considers different among individuals adopting Sasang constitutional medicine, utilizing Forest-Therapy Doctor through the participation of Public Oriental Medicine Doctor, and operating experience program applying Herb have sufficient possibility.

Ecological Characteristics in School Forests of Elementary Schools in Changwon-City, Gyeongnam-do (경남 창원시 초등학교 학교숲의 생태적 특성)

  • Kang, Mee-Young;Joo, Jeong-Woon;Kim, So-Jin;Kim, Tae-Woon;Moon, Hyun-Shik
    • Journal of Environmental Science International
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    • v.30 no.3
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    • pp.207-218
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    • 2021
  • This study was conducted to provide basic data for the establishment school forests in order to utilize school forests as a place for environmental education through analyzing the planting status in elementary schools located in Changwon-city. School forests including meditation forest were the largest in Yongho elementary school (below e.s.) in meditation forest school and Dogye (e.s) in normal school. Jehwang (e.s.) and Sangnam (e.s.) showed the most abundant green area given for the management per member. The number of planting species and individuals in school forests differed greatly by elementary schools. There was also a difference in the number of planted species for establishment of meditation forest. There were no significant difference the concordance rate between the plants planted in the school forest and the plants mentioned in the textbook between meditation forest schools and normal schools. Index of ecological health averaged 3.2 for meditation forest schools and 2.4 for normal schools, which is the result of increase in green area and green rate due to the establishment of the meditation forest.

Effect of Seed Collection Stage and Temperature on Germination of Deutzia paniculata Nakai, the Korea Native Species

  • Jeong, Mi Jin;Choi, Go Eun;Ghimire, Balkrishna;Lee, Ha Yan;Jung, Ji Young;Choi, Myung Suk;Ku, Ja Jung;Lee, Kyung Mee;Lee, Cheul Ho;Suh, Gang Uk;Son, Sung Won
    • Horticultural Science & Technology
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    • v.34 no.3
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    • pp.372-382
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    • 2016
  • In this study, we investigated the effect of seed collection stage and alternating temperature on the germination of Deutzia paniculata (Hydrangeaceae). The seeds were collected from naturally growing D. paniculata populations in Mt. Palgong, Gyeonsangbuk-do, Korea every two weeks over a three month period from August through October, 2014, totaling five collections. We examined seed characteristics such as seed size (length and width) and weight, and germination percentages for each collection stage under four different germination temperature regimes. We also examined germination after 30 and 60 days of cold moist stratification. Each collection phase had a different germination percentage and the lowest germination percentage was observed in the seeds from phase I (average GP of 15.7%). The germination percentage was similar at the later collection phases and in the higher temperatures suggesting that later collection times and higher temperatures are optimal for D. paniculata germination. We found that the optimum collection stage with high viability and germination percentage of for D. paniculata was during the middle of the September.

H2O2 Pretreatment Modulates Growth and the Antioxidant Defense System of Drought-stressed Zoysiagrass and Kentucky Bluegrass

  • Bae, Eun-Ji;Han, Jeong-Ji;Choi, Su-Min;Lee, Kwang-Soo;Park, Yong-Bae;Lee, Geung-Joo
    • Horticultural Science & Technology
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    • v.34 no.3
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    • pp.383-395
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    • 2016
  • This study investigated the effect of exogenous hydrogen peroxide ($H_2O_2$) on the antioxidant responses and growth of warm-season turfgrass (Zoysia japonica Steud.) and cool-season turfgrass (Poa pratensis L.) subjected to drought stress. Compared with control plants that were not pretreated with $H_2O_2$, plants pretreated with $H_2O_2$ had significantly greater fresh and dry weights of shoots and roots, and increased water content. $H_2O_2$ pretreatments before drought stress significantly decreased the concentrations of malondialdehyde and $H_2O_2$. DPPH radical scavenging and glutathione activities were significantly increased. The responsive activities of the antioxidant enzymes superoxide dismutase, ascorbate peroxidase, catalase, and peroxidase were also significantly enhanced. Our results suggest that exogenous $H_2O_2$ could improve the growth of warm-season and cool-season turfgrass under drought stress by increasing the activity of their antioxidant enzymes, while decreasing lipid peroxidation.

A Study on Prioritization of Urban Forest Composition Using Needs Analysis - Targeting Paju Heyri Village

  • Kang, Byong-Rho;Koo, Ja-Houng;Kim, Hyoung-Tae;Woo, Jong-Choon
    • Journal of Forest and Environmental Science
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    • v.34 no.1
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    • pp.87-94
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    • 2018
  • This study proposes a strategy for the creation and management of urban forests in Paju Heyri art village. Urban forest composition attributes (4 categories and 16 items) were extracted and the questionnaire was asked to the level and the current level for tourists, local residents and workers in Paju Heyri art village. And the priority order for the creation of urban forests was derived through the difference between the present level (performance) and the required level (importance) and the requirements analysis procedure. In this study, the priorities of each item of urban forest formation attributes were determined. The t-test alone had limitations, so we calculated the Borich needs which were not covered by the existing Importance - Performance Analysis (IPA). We used the Locus for Focus Model, which is a method for visually confirming the difference between the current level and the required value for the required level in the 4-quadrant coordinate plane. The results of this study show that the seven priorities can be used as a useful tool for the formulation of urban forests and operational strategies and can be a basic research for the activation of urban forests in the future.

Insecticidal Activity of Japanese Pine Sawyer (Monochamus alternatus) and Pine Sawyer (Monochamus saltuarius) Using Abamectin and Emamectin benzoate

  • Lee, Dong-Hyeon;Suh, Dong Yeon;Seo, Sang-Tae;Lee, Sang-Hyun
    • Journal of Forest and Environmental Science
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    • v.36 no.3
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    • pp.255-258
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    • 2020
  • Pine wilt disease (PWD) caused by pine wood nematode (PWN), Bursaphelenchus xylophilus, which is transmitted by Monochamus alternatus and M. saltuarius, is a serious threat to coniferous forests in the Northern Hemisphere, including Korea. The efficacy of abamectin and emamectin benzoate for preventing the PWD in the field and its effect on the vectors Monochamus alternatus and M. saltuarius (Coleoptera: Cerambycidae) were evaluated. An experimental plot was delimited, of which consists of Japanese red pine (Pinus densiflora) forest in South Korea, and trunk injection trials were made with abamectin and emamectin benzoate. Branches of each tree were collected, and are subsequently subjected to the analysis of residues for both nematicides. Results obtained in this study showed that abamectin and emamectin benzoate showed over 90% mortality at the recommended concentration after 6 days and 8 days, respectively. Consequently, it was found that both insecticides have a higher effect on the susceptibility and persistence of two vectors of PWD, M. alternatus and M. saltuarius feeding on branches of the trees, and its application by trunk injection is confirmed as an option for pine wilt disease management programs in Korea.

Mapping for Biodiversity Using National Forest Inventory Data and GIS (국가 생태정보를 활용한 생물다양성 지도 구축)

  • Jung, Da-Jung;Kang, Kyung-Ho;Heo, Joon;Kim, Chang-Jae;Kim, Sung-Ho;Lee, Jung-Bin
    • Journal of Environmental Impact Assessment
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    • v.19 no.6
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    • pp.573-581
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    • 2010
  • Natural ecosystem is an essential part to connect with the plan for biodiversity conservation in response strategy against climate change. For connecting biodiversity conservation with climate change strategy, Europe, America, Japan, and China are making an effort to discuss protection necessity through national biodiversity valuation but precedent studies lack in Korea. In this study, we made biodiversity maps representing biodiversity distribution range using species richness in National Forest Inventory (NFI) and Forest Description data. Using regression tree algorithm, we divided various classes by decision rule and constructed biodiversity maps, which has accuracy level of over 70%. Therefore, the biodiversity maps produced in this study can be used as base information for decision makers and plan for conservation of biodiversity & continuous management. Furthermore, this study can suggest a strategy for increasing efficiency of forest information in national level.