• Journal of Agricultural Extension & Community Development
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• v.2 no.1
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• pp.81-86
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• 1995

The objectives of this study is to explore the cooperative directions of extension services between Rural Development Administration and National Agricultural Cooperative Federation. Both organizations should share their extension roles and functions in order to increase the effectiveness and adaptability of their services, and activity. It is desirable that the R.D.A. takes responsibility for technological of the services and the N.A.C.F. takes responsibility for management aspects.

• Journal of Forest and Environmental Science
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• v.24 no.3
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• pp.165-169
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• 2008

This study attempts to analyze the relationship between forest volume and age based on 5th NFI data and spectral characteristics of satellite imagery using ASTER sensor in Korea. Forest stand volume and age had the negative correlation with the spectral reflectance in all of the band (Blue, Green, Red, SWIR). With increasing of stand volume and age, spectral reflectance decrease. The spectral reflectance of band1 showed the highest correlation between stand volume and spectral reflectance among the VNIR wavelength. The spectral reflectance band 1, 2 (visible wavelength) and stand age have high correlation compared to other bands. The correlation coefficients between forest volume and vegetation indices have low relationship. This result indicates that the reflectance of blue band may be important factor to improve the potential of optical remote sensing data to estimate forest volume and age.

• Journal of Forest and Environmental Science
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• v.24 no.3
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• pp.155-158
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• 2008

Site index is the essential tool for forest management to estimate the productivity of forest land Generally, site index equation is developed and used by relationship between stand age and dominant tree heights. However, there is a limit to use the site index equation in the application of variable ages, environmental influence, and estimation of site index for unstocked land. Therefore, it was attempted to develop a new site index equations based on various environmental factors including site and topographical variables. This study was conducted to develop regional site index equations based on the relationship between site index and soil factors for Pinus densiflora. Environmental factors that obtained from GIS application, were selected by stepwise-regression. Site index Equation was estimated by multiple regression from selected factors. Four environmental factors were selected in the final site index equations by stepwise regression. It was observed that coefficients of determination for site index equations were ranged from 0.34 which seem to be relatively low but good enough for estimation of forest stand productivity. The site index equations developed in this study were also verified to be useful by three evaluation statistics such as model's estimation bias, model's precision and mean square error type of measure.

• The Journal of Fisheries Business Administration
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• v.34 no.1
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• pp.185-211
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• 2003

Initially, the system of outside director of cooperative has the object of consulting an external specialist. Recently, it takes a serious view of monitoring about securing clean management on the operating crisis. Nevertheless, in the field of NFFC(National Federation of Fisheries Cooperatives), it is difficult that the system of outside director of cooperative attains that is initial object. And in the field of FC(Fisheries Cooperative), it isn't in force about the outside director of cooperative. Therefore, it is important to make a following system improvement. (1) The ratio of outside directors among the member of board of directors has to be increased. (2) Outside director's term of office has to be amended from lyears to 2years and the current method of selection should be reformed to be a strict one with high standard of requirement and substantial screening for membership. (3) Outside directors' wage system must be actualized by adopting incentive system' etc. A measure of appointing an executive in a similar business line or organizations to ours as an outside director must be considered. FC have to introduce the system of outside director. (4) A recognition of proper management of outside directors and putting in practice is essential.

• Journal of Korean Society of Forest Science
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• v.110 no.4
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• pp.496-503
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• 2021

Pinus densiflora is an essential tree species native to the Republic of Korea (ROK) and covers most of the total natural forest areas in the ROK. This study was conducted to understand the site characteristics and stand structure of P. densiflora forests distributed at sites where P. densiflora covered over 50% of the stand basal area during the 7th National Forest Inventory (NFI) period from 2016 to 2020. P. densiflora dominated 3,665 circular sample plots (400 m²). P. densiflora forests predominated at elevations less than 600 m above sea level (a.s.l). However, most P. densiflora forests were distributed at the slopes facing south and west over 800 m a.s.l. At altitudes below 800 m, they were distributed at all slopes but dominated at the southern and western slopes. P. densiflora grew mainly in the soils of sandy loam, loam, or silt loam with relative infertility. Dominant tree species distributed with P. densiflora were Quercus mongolica, Q. variabilis, Q. serrata, Prunus serrulata var. pubescens and Castanea crenata by the descending order. P. densiflora, P. thunbergii, and P. rigida were grown in large DBH classes, Quercus species and Fraxinus rhynchophylla in middle DBH classes, while Juniperus rigida and Styrax japonicus in small DBH classes. Dominant tree species distributed mainly at the lower layer of P. densiflora stands were Rhododendron mucronulatum, Q. serrata, Lindera obtusiloba, Fraxinus sieboldiana, Toxicodendron trichocarpum and Rhododendron schlippenbachii by the descending order.

• Journal of Korean Society of Forest Science
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• v.111 no.1
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• pp.100-107
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• 2022

Quercus mongolica is an important deciduous tree species in the Republic of Korea; it covers most of the total natural deciduous forest area in the country. In this study, the site characteristics and stand structure of Q. mongolica forests were investigated at sites where Q. mongolica occupied >50% of the total basal area during the 7th National Forest Inventory period (2016-2020). The total number of circular sample plots (400 m²) of Q. mongolica forests was 1,421. These forests were mainly dominant at >800 m above sea level (a.s.l). However, they were also distributed on north-facing slopes at <600 m a.s.l. and gradually on southern slopes with ascending altitudes. Quercus mongolica forests were distributed in silt loam, loam, or sandy loam soils with relatively high fertility. Dominant species distributed with Q. mongolica included Pinus densiflora, Quercus variabilis, Acer pseudosieboldianum, Fraxinus rhynchophylla, and Quercus serrata. Pinus densiflora and Q. variabilis grew in large DBH classes, Q. serrata grew in middle DBH classes, and A. pseudosieboldianum and F. rhynchophylla grew in small DBH classes. The dominant species distributed at the lower layer of Q. mongolica forests were Sasa borealis, Lindera obtusiloba, Rhododendron mucronulatum, Rhododendron schlippenbachii, Q. mongolica, and Fraxinus sieboldiana.

• Journal of Agricultural Extension & Community Development
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• v.2 no.2
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• pp.117-128
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• 1995

Korean agriculture now faces a historic challenge due to globalization and decentralization. Agricultural cooperatives should be reborn to lead regional agriculture by reorganizing the regional agri-business and strengthening the competitive power of regional agriculture. It also needs to establish an integrated agricultural development plan and to expand the vision for future agriculture. To pursue these objectives, Agricultural Cooperatives should work together with the regional government and develop an enterprise with a competitive advantage in the region.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.16 no.3
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• pp.29-38
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• 2016

A financial institution operated by cooperatives, abiding by the principle set by the cooperative federation, is comprised of a numerous financial institutions. Most of these small institutions are operated within local areas, providing financial services for coop members. The Financial Supervisory Regulations that supervises security professionals, organizations, and budgets are established entirely based on commercial banks in which the application of these regulations on coop financial institutions may not be proper. This paper aims to provide an efficient IT security policy for nation-wide financial institutions operated by the Cooperative Federation by analyzing its security personnel managements and adequacy.

• The Korean Journal of Pesticide Science
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• v.17 no.4
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• pp.271-282
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• 2013

This is the result of pesticide residue monitoring certified Good Agricultural Practice (GAP) by national agricultural cooperative federation (NACF) from 2009 to 2012. NACF evaluated simultaneously 283 pesticide multi-analysis method with GC (ECD, NPD) and HPLC. 6,590 agricultural products were analyzed in this period. As the results 1) detected 20.27% in 2009, 23.42% in 2010, 28.07% in 2011 and finally 31.75% in 2012, respectively. There was the total detected pesticide residue in the agricultural products. The violated ratio of agricultural products were 2.25% in 2009, 1.82% in 2010, 1.67% in 2011 and 3.47% in 2012, respectively. 13 pesticides went over the maximum residue limits (MRLs); carbendazim was the predominant violation. 40 pesticides; endosulfan was the predominant detected pesticide did not registered respectively crops in Korea. Most agricultural products that were under the MRLs met the safety standard, however agricultural products that contain neither registered nor set up MRL any level for example endosulfan in strawberry. Agricultural products that go over the MRLs with permitted pesticides, for example carbendazim in apple, are rejected. Because of these intricacies continual observation and evaluation will be need during GAP agricultural cultivation.

• The Journal of Engineering Geology
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• v.28 no.3
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• pp.379-395
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• 2018

A walking trail environment can be divided into the upper part of the trail, the trail itself, and the lower part of the trail. In this study, based on field investigations, we developed a risk index for trails by considering human/societal factors that affect each of these three trail environments. A checklist was developed for field investigations, and checklist items were scored through relative importance analysis. The relative weights of items were analyzed using the AHP (Analytic Hierarchy Process) technique, revealing that the upper environment of a trail is twice as important as the rest of the environment. The importance and score of items belonging to each environment were determined. We define the risk index as the sum of the item scores. Weights were added using data from existing investigations including landslides risk rating and designated risk steep slopes. The risk index has a maximum value of 200, and the maximum and minimum calculated scores of 335 risk sections were 159 and 64.2, respectively. As a result of comparative analysis between field observations and risk index calculations, most sections at relatively low risk had risk values less than 100, and sections with high risks or that had been the site of accident yielded scores that exceeded 140.