• Journal of Korean Society of Forest Science
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• v.102 no.3
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• pp.390-397
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• 2013

The study, utilizing a data envelopment analysis (DEA) which is one of the nonparametric estimation methods, aims to evaluate the management efficiency of chestnut tree cultivators in such provinces in Chungchungnam-do as Cheong-yang, Gong-ju, Bu-yeo and so on. The analysis data of this study is based on inputs and outputs of 20 forestry households surveyed in the 2012 survey titled 'A Study on Current Level and Condition of Chestnut Cultivation and Management', which was conducted from March 2012 to October 2012. The elements of inputs are composed of management cost, harvesting cost, material cost, non-operation expenses and cultivation area, while the element of output is a gross margin only. Then the study analyzes a technical efficiency, a puretechnical efficiency and a scale efficiency using CCR and BCC model among DEA methods. Based on that, it also provides improvement methods for forestry households that turned out to be inefficient. In order to verify the result of DEA analysis, the study additionally compares a result of this efficiency study with that of chestnuts management standard diagnostic table. According to the result, the average value of technical efficiency analyzed was 0.667, proving to be inefficient in general. Given that the average value of pure-technical efficiency was 0.944 and that of scale efficiency was 0.703, it can be inferred that inefficiency exists in the field of scale, not in the field of cultivation techniques. As for forestry households with the efficiency score of 1, it is shown that there were 6 households that recorded 1 in the technical efficiency field and 13 households that recorded 1 in the pure technical efficiency. Meanwhile, there were 6 households that recorded 1 in all of the three aspects. In the comparison with the scores from chestnuts management standard diagnostic table, there were 5 households made a high score of over 80, among which are 3 households with score 1 in the technical efficiency. Also, the results of this study and the chestnuts management standard diagnostic table are proved to have the same result, both of them showing the same households that recorded the highest score and the lowest score. This means the management efficiency evaluation using DEA can be applied to the fieldwork along with the chestnuts management standard diagnostic table.

• Journal of Korean Society of Forest Science
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• v.101 no.4
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• pp.695-702
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• 2012

The chestnut management standard diagnostic table is developed and would be utilized in order that a manager raising chestnuts checks where the own level of management is and grasps current state of own for the purpose of planning aims and advancing toward a higher level. The developed 'Chestnut management standard diagnostic table' consisted of 3 first classified items, 19 second classified items and 2 product indicator items by the chestnut experts consultative meeting. A survey of 212 farmhouses in 4 major producing area was conducted. Except invalid survey of 53 farmers, 159 farmhouses interviewed were used in analysis. Total score was calculated with sum of each item's score. According to the survey results, average score is 68.0 and Buyeo received the highest score of 69.7 and Suncheon received the lowest score of 61.8 by regional groups. The higher the group in score, the better it is in output per hectare. But the property of 'the ratio of the best products in total products' does not show a statistical correlation. Generally the score of 'management-based evaluation indicator part' and 'management and sale capacity indicator part' in Suncheon was low because of many elderly people. In part of 'manufacturing technology indicator' as Environmentally-Friendly production is progressed in over 70% of four regions, when comes to a disease and insect pest control there are rarely farmhouses having a way of crop dusting.