52 research outputs found
Development of forest resource account and its use for policy impact analysis : with a special reference to timber, carbon sequestraton, and forest recreation
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Measurement of velocity, size of bubble and local void fraction for cocurrent vertical bubbly flow with an optical fiber probe
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A Study on the Development of Forest Resource Account : With a Special Reference to Timber Production, Carbon Fixation, and Forest Recreation
The objectives of this study are to develop the Forest Resource Account(FRA) and to construct the physical and monetary FRA on timber production, carbon fixation, and forest recreation. This study considers for the period of 1985-1994 only to examine the recent forest changes in growing stocks, and the amount of carbon fixation and forest recreation among the non-timber values of forest in FRA due to a lack of data and information on other values.
FRA is a management tool that integrates forest information from many sources and makes it possible for decision-makers to evaluate and carry out forest policies and planning. The definition of the physical FRA is to monitor stocks and flows of timber production, the amount of carbon fixation, and forest recreation use in physical terms. The economic value of annual net growing stock was evaluated using current prices of stumpage value. The value of growing stock in the productive forest was around 4,949 billion won as of 1994, whereas net annual increment value was 23.6 billion won. This annual increment value can be entered the Green GNP as an increase in national wealth. Total amount of net carbon fixation from the whole forest was about 7 million(tC) employing IPCC approach and the monetary value was estimated 50/tC and 50 year rotation. Demand function for the forest-type national park was estimated to measure the participation rate of forest recreation by the population of above 18-year old. Consumer surplus of forest recreation was used to measure the willingness-to-pay to visit the forest recreation sites. The monetary value of forest recreation was found to be 3,717 billion won in 1994
A Feasibility Study of Fuelwood Plantation Establishment in DPR Korea
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The paper is carried out to review the current status of fuelwood supply and fuelwood forests in DPR Korea based on the news media reports, to estimate the size of fuelwood forest to meet the energy demand by agricultural rural area and mountainous villages in DPRK, and finally to analyze the economic feasibility of Robinia fuelwood forest plantation assuming that some of energy will be provided from fuelwood forest. The feasibility study of fuelwood plantation project is evaluated employing net present value(NPV), internal rate of return(IRR) and B/C ratio analysis. DPRK has been faced with the severe food and energy shortage due to the nature disasters and the structural economic problems. Due to the energy crisis, some urban areas as well as agriculture and mountainous areas used fuelwood for cooking, heating and even for the transportation energy. As the degree of fuelwood usage was expanding, DPRK government was planting trees through mobilizing people as well as the relevant agencies and authorities for implementing fuelwood plantation actively. If the government decided to provide the fuelwood energy to households for the necessary energy in rural areas, it is estimated that the size of fuelwood plantation should be from 1.23 million hectares to 0.36 million hectares, depending on the assumptions. Finally, it is concluded that the investment of fuelwood plantation will show positive results in NPV analysis and guarantee very high return with the interest rate of 3% and 5%. Furthermore, it is better to start earlier than later and the proper time of investment in fuelwood plantation will be now and before the unification while DPR Korea is maintaining the existing political system.λ³Έ λ
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Prospects of Demand for and Supply of Wild Vegetables and Profitability of their Cultivation in Korea
This study was carried out to forecast demand for and supply of wild vegetables and to analyze profitability of cultivating them in the Republic of Korea. To collect the raw data on cost of cultivating wild vegetables, interviews were held in Yangpyung-gun, Kyungkido and to forecast demand for and supply of them, domestic demand and supply function with the time series data for 1977-1995 were estimated by the regression analysis. Estimation results reveal that elasticities of demand for wild vegetables with respect to price and income are -1.8% and 2.6%. respectively, whereas elasticities of domestic supply with respect to price and rural wage are 1.9% and -0.8%. respectively. Based on the business as usual scenario, quantity demanded will be increased from 39,905 ton to 119,346 ton and quantity supplied will be from 18,497 to 27,822 ton in 1995-2010. Thus, domestic supply will contribute only 23.3% to the total consumption in 2000. whereas 46.4% in 1995. For the profitability of wild vegetable cultivation, the rate of net income(average 70.9%) is
higher than that of other crop or vegetable cultivation(average 64.4%). In conclusion, it can be suggested that farmers in mountainous villages grow wild vegetables to increase their income utilizing the marginal farm lands.μ΄ μ°κ΅¬λ λλ¦ΌλΆ μ§μ 1995-1997λ
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