• KDI북한경제리뷰
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• v.23 no.5
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• pp.76-82
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• 2021

• KDI북한경제리뷰
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• v.21 no.6
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• pp.3-30
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• 2019

• KDI북한경제리뷰
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• v.21 no.4
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• pp.39-52
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• 2019

• KDI북한경제리뷰
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• v.21 no.3
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• pp.81-85
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• 2019

• KDI북한경제리뷰
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• v.22 no.2
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• pp.65-87
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• 2020

• KDI북한경제리뷰
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• v.22 no.11
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• pp.65-77
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• 2020

• KDI북한경제리뷰
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• v.22 no.1
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• pp.48-69
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• 2020

• KDI북한경제리뷰
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• v.22 no.1
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• pp.70-79
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• 2020

• Journal of Korean Society of Forest Science
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• v.107 no.3
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• pp.305-315
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• 2018

This study conducted to estimate the influences of policy which prohibits illegal logging trade. Before analyzing of the economic effects for this policy, scenario methods were selected to inflect economic circumstance by implementing it. In order to do, the policy experiments were carried out using equilibrium displacement equation model. Results show that change ratio of log price was increased 0.066%~0.071%. Since the primary import country of log is New zealand which is high CPI score rather than Republic of Korea so that imported quantity of log was decreased thinly. Because imported log price is worked as a cost in the lumber market, if the imported log price was increased, supply of lumber has to be decreased. So that, not the change ratio of domestic lumber price was increased 0.885%~4.179% but supply of domestic lumber was increased 5.367% respectively along the goods features as a heterogeneity or homogeneity on the market.

• Korean Journal of Ecology and Environment
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• v.38 no.2 s.112
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• pp.261-270
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• 2005

Biological control agents (BCA; algicidal bacterium Xantobacter autotrophycus) plus casitone media, strongly changed physicochemical variables, standing crops of phytoplankton and microcystin-LR phytoplankton in 100-L mesocosm constructed in a small hexagonal pond (3.5 m ${\times}$ 5 m). No M. aeruginosa showed by 8 days, and 60% of total standing crops of phytoplanktons were decreased by the BCA treatment. BCA treatment also induced a strong decline of cellular extracted microcystin-LR (MCLR) and a remarkable increase of dissolved MCLR with the decrement in standing crops of cyanobacteria. In addition, BCA strongly increased all nutrients, but new outbreak of phytoplanktons hardly showed in the experimental mesocosm. The field application of BCA to controling the cyanobacterial bloom in large lakes and reservoirs is not relevant due to high concentration of nutrients and toxins. Thus, a further study is needed to diminish the adverse effects after BCA treatment for water quality preservation.