• Journal of Ginseng Research
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• v.37 no.4
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• pp.491-495
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• 2013

Wood-cultivated ginseng, including roots in its dried form, is produced in forest land without using artificial facilities such as light barriers. To identify suitable sites for the propagation of wood-cultivated ginseng, factor combination technique (FCT) and linear combination technique (LCT) were used with geographic information system and the results were superimposed onto an actual wood-cultivated ginseng plantation. The LCT more extensively searched for suitable sites of cultivation than that by the FCT; further, the LCT probed wide areas considering the predominance of precipitous mountains in Korea. In addition, the LCT showed the much higher degree of overlap with the actual cultivation sites; therefore, the LCT more comprehensively reflects the cultivator's intention for site selection. On the other hand, the inclusion of additional factors for the selection of suitable cultivation sites and experts' opinions may enhance the effectiveness and accuracy of the LCT for site application.

• Journal of agriculture & life science
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• v.46 no.1
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• pp.9-16
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• 2012

This study was conducted to scientifically analyze on the trends of cultivation area and production, and to detect the suitable site for Morus alba cultivation in forest of Buan-gun for effective cultivation. During last 3 years, the cultivation area of M. alba has steadily been increased, and the mulberry production of Jeollabuk-do has been researched as the greatest in Korea. Especially Buan-gun has the largest cultivation area of M. alba. On the other hand, as the result of detecting the suitable site for M. alba cultivation by factors of altitude, aspect, slope, soil texture, and organism content using GIS, there was the 663 ha suitable site of the total of 16,608 ha. In this area, Byeonsan-myeon, Sangseo-myeon, and Jinseo-myeon were included with the largest area, therefore, it was considered that these were the favorable regions for the expansion of M. alba cultivation area. The result of this study would be expected to be used as the effective information when establishing the expansion plan for M. alba cultivation area focused on the forest of Buan-gun in the future.

• Journal of agriculture & life science
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• v.45 no.1
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• pp.41-47
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• 2011

This study that is to increase forest income with Omija (Chisandra chinensis) was conducted to analyse the status of production of Omija and the suitable site of cultivation in Jangsu-gun forest using GIS Omija production was increased by 297.2% with 3,786,237 kg in 2009, compared with in 2007. Of this figure, the most amount of Omija production was producted with 2,013,379 kg (53.2%) in Gyeongsangbuk-do Production of Jeollabuk-do was the third most amount in the whole country with 407,210 kg (10.8%). Of this figure, the most amount of Omija production was producted with 131,000 kg (32.2%) in Jangsu-gun. On the other hand, the cultivated area of Omija in Jangsu-gun was 159.0ha in 2008, and of this fugure, Jangsu-eup had 48.8 ha (30.7%) which was the most amount of the clutivated area of Omija. The suitable site of cultivation for Omija in Jangsu-gun analysed by using GIS was 1,199 ha, moreover, the suitable site of cultivation for Omija by eup and myeon was 304 ha (25.4%) in Cheoncheon-myeon, 272 ha (22.7%) in Jangsu-eup, 172 ha (14.3%) in Gyenam-myeon, 158ha (13.2%) in Beonam-myeon, 135 ha (11.3%) in Janggye-myeon, 129 ha (10.8%) in Gyebuk-myeon, and 29 ha (2.4%) in Sanseo-myeon, respectively. It was thought that investment should be made efficiently and effectively by considering the result of this study to increase forest income with Omija in Jangsu-gun.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.18 no.1
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• pp.103-113
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• 2015

Korean pines(Pinus koraiensis) are one of the major plantation species in the Republic of Korea and their natural habitats range from Japan and China to Siberia. The seed of Korean pines, pine nuts, are well know for good food reserves. Due to the global changes which drive the Korean peninsula into the semi-tropical climate, current plantations and natural habitats of Korean pines are faced with the change in the environmental conditions to some extent. To anticipate suitable sites for Korean pines in the future, the location of Korean pines were extracted from the 'Map of suitable trees on a site' that provides the map of suitable trees on a site considering tree species for timber and special uses, and then MaxEnt modelling was used for generating a prediction map on the basis of statistical analysis. As a result, the order of predicted suitable sites were Kangwon-do, Kyungsangbuk-do and Chungcheongbuk-do provinces and sites with high elevation within those provinces were considered most suitable in common. The prediction map of suitable sites for Korean pines presented that suitable sites in the future decreased by 72.2% by 2050's and almost disappeared with a decrease of 92.1% by 2070's on a nationwide scale. In relation to the major production regions of pine nuts in South Korea - Gapyung gun and Yangpyung gun, Kyunggi province and Hongcheon gun, Kangwon province, suitable sites within their areas were predicted to increase by 2050's but become extinct in South Korea by 2070's. To establish a long-term countermeasures against the improvement on forest productivity quality in terms of managing national food security, the result from this study can be considered as a firm basis of predicting plantation suitability. Also, it can be used to predict the changes in supply of forest products and thereby market values in accordance with climate change scenarios.

• Korean Journal of Plant Resources
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• v.32 no.5
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• pp.463-470
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• 2019

Wild-simulated ginseng is requires standard establishment on location environment for long-term and eco-friendly cultivation. The this study was carried out to investigate the correlation between growth characteristics and location environment of wild-simulated ginseng for selection of suitable cultivation area. Samples were collected from a 9 site of wild-simulated cultivation area and examined growth characteristics and location environment. Correlation coefficient between growth characteristics and location environment was analyzed using Spearman's rank correlation. The growth of wild-simulated ginseng was shown significantly higher in Geochang and Hamyang cultivation area. The results of correlation analysis was shown significantly correlation with percentage of conifer, total diameter at breast height, soil pH, K, Ca and Mg. The results of this study was clearly investigated the correlation between growth characteristics and location environment of wild-simulated ginseng, which is considered to will provide understanding for selection suitable cultivation area of wild-simulated ginseng.

• Journal of Ginseng Research
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• v.39 no.1
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• pp.76-80
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• 2015

Background: Identifying suitable site for growing mountain-cultivated ginseng is a concern for ginseng producers. This study was conducted to evaluate the soil properties of cultivation sites for mountain-cultivated ginseng in Hamyang-gun, which is one of the most well-known areas for mountain-cultivated ginseng in Korea. Methods: The sampling plots from 30 sites were randomly selected on or near the center of the ginseng growing sites in July and August 2009. Soil samples for the soil properties analysis were collected from the top 20 cm at five randomly selected points. Results: Mountain-cultivated ginseng was grown in soils that varied greatly in soil properties on coniferous, mixed, and deciduous broad-leaved stand sites of elevations between > 200mand < 1,000 m. The soil bulk density was higher in Pinus densiflora than in Larix leptolepis stand sites and higher in the < 700-m sites than in > 700-m sites. Soil pH was unaffected by the type of stand sites (pH 4.35-4.55), whereas the high-elevation sites of > 700mwere strongly acidified, with pH 4.19. The organic carbon and total nitrogen content were lower in the P. densiflora stand sites than in the deciduous broad-leaved stand sites. Available phosphorus was low in all of the stand sites. The exchangeable cationwas generally higher in the mixed and low-elevation sites than in the P. densiflora and high-elevation sites, respectively. Conclusion: These results indicate that mountain-cultivated ginseng in Korea is able to grow in very acidic, nutrient-depleted forest soils.

• Journal of The Korean Society of Grassland and Forage Science
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• v.38 no.4
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• pp.337-342
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• 2018

This study was conducted to perform the suitability analysis of whole-crop rye (Secale cereale L.) based on the climatic information in the Republic of Korea to present useful information for producers and policy makers to determine the site-selection for the cultivation of the whole-crop rye. The criteria to analyze the climatic suitability of whole-crop rye was developed firstly. Then, the climatic suitability map for spatial analysis was developed through weighted overlaying the raster layers of climatic items in the evaluation criteria. Meanwhile, 16 geographically representative weather stations were selected to show examples of the calculation process of the climatic suitability score of a specific cultivation area. The results of the climatic suitability mapping indicated that the climatic conditions in most arable lands of the Republic of Korea such as the coastal, southern, western areas in the southern region of the Korean Peninsula and central areas in Jeju Island are suitable for the cultivation of whole-crop rye. The climatic suitability scores of the 16 weather stations were all in line with the results of the climatic suitability map.

• Korean Journal of Agricultural Science
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• v.46 no.3
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• pp.661-670
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• 2019

In this study, we constructed a model of an area where the production and production amount of wild vegetables which are designated as short term income forest products for the whole country are self-sufficient for the representative Eastern Braken fern(Pteridium aquilinum)and Edible aster(Aster scaber). The difference between the existing cultivation site and the model result was examined, and the distribution of the cultivable area was simulated according to the near future climate change by the 2050s. The degree of agreement between the cultivated area and the actual native area was very low at 14.5% for Eastern Braken fern and 12.9% for Edible aster. Using the Maxent model, which has already been proven by many research examples, the cultivation maps through the model can guarantee statistical accuracy by considering many variables. To analyze future location changes, the RCP 4.5 scenario and the RCP 8.5 scenario were applie Edible aster d to predict potential future cultivable areas and compare them to the present. There was no decrease in the cultivable area due to climate change nationwide. However, in the RCP 8.5 scenario for Eastern Braken fern and the RCP 4.5 scenario for Edible aster, declining areas such as Gangwon-do, Jeollabuk-do and Gyeongsangbuk-do showed prominence according to the scenarios. The result of this study suggests that various models can be used for the production of short-term forest productivity maps and it will be used as a climate change impact assessment data for competitive forest products considering the influence of future climate change.

• Korean Journal of Agricultural and Forest Meteorology
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• v.11 no.4
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• pp.162-173
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• 2009

Information on the expected geographical shift of suitable zones for growing crops under future climate is a starting point of adaptation planning in agriculture and is attracting much concern from policy makers as well as researchers. Few practical schemes have been developed, however, because of the difficulty in implementing the site-selection concept at an analytical level. In this study, we suggest site-selection criteria for quality Fuji apple production and integrate geospatial data and information available in public domains (e.g., digital elevation model, digital soil maps, digital climate maps, and predictive models for agroclimate and fruit quality) to implement this concept on a GIS platform. Primary criterion for selecting sites suitable for Fuji apple production includes land cover, topography, and soil texture. When the primary criterion is satisfied, climatic conditions such as the length of frost free season, freezing risk during the overwintering period, and the late frost risk in spring are tested as the secondary criterion. Finally, the third criterion checks for fruit quality such as color and shape. Land attributes related to these factors in each criterion were implemented in ArcGIS environment as relevant raster layers for spatial analysis, and retrieval procedures were automated by writing programs compatible with ArcGIS. This scheme was applied to the A1B projected climates for South Korea in the future normal years (2011-2040, 2041-2070, and 2071-2100) as well as the current climate condition observed in 1971-2000 for selecting the sites suitable for quality Fuji apple production in each period. Results showed that this scheme can figure out the geographical shift of suitable zones at landscape scales as well as the latitudinal shift of northern limit for cultivation at national or regional scales.

• Fire Science and Engineering
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• v.22 no.4
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• pp.105-114
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• 2008

This study analyzed recruiting system, competence requirement system, promotion system by competence verification, and expert training system in fire officials of the Tokyo Fire Department. The recruiting system is classified into expert and Grade 1, 2, and 3 and all grades are appointed as a fire fighter. According to the competence requirement system, while in office, fire officials who have a certain qualification defined in the recruiting system can change their recruiting classification according to their ability such as Grade $3{\rightarrow}$Grade 2 or 1 or expert, Grade $2{\rightarrow}1$ or expert, or Grade $1{\rightarrow}$expert. The promotion system requires working hard, capability suitable to their grade, and careful verification. Also, a variety of on-site training and qualification systems are provided to reinforce professionalism of staffs and executives.