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Estimation of Economic Value of Cooling by Upland Farming during Hot Summer  

Hyun, Byung-Keun (National Institute of Agricultural Science & Technology)
Kim, Moo-Sung (Department of Oriental Medicinal Material and Processing, Kyung-Hee Univ.)
Eom, Ki-Cheol (National Alpine Agriculture Experiment Station)
Kang, Ki-Kyung (National Institute of Agricultural Science & Technology)
Yun, Hong-Bae (National Institute of Agricultural Science & Technology)
Seo, Myung-Cheol (National Institute of Agricultural Science & Technology)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.36, no.6, 2003 , pp. 423-428 More about this Journal
Abstract
Multifunctionality of agriculture which cannot be in trade has internationally an important issue due to its environmental and public benefits. The purpose of this study was to estimate economic value of upland farming in cooling effect during hot summer. Economic value of cooling effect was evaluated by the replacement cost method. To evaluate the cooling effect from July through August, the amount of evapotranspiration in upland was estimated using crop coefficients and soil water coefficients perviously reported by several researchers. In July and August, average crop coefficient of fourteen major upland crops was 1.19 and average soil water coefficient of major textures of upland soil was 0.91. The estimated evapotranspiration in upland from July through August was $1,224{\times}10^6Mg$, and this amount of evapotranspiration can consume $7.1{\times}10^{14}kcal$ of heat. When these values were converted to the price of petroleum, the economic value of cooling effect by upland farming from July through August was about 12 trillion won.
Keywords
Cooling effect; Multifunctionality of agriculture; Upland farming;
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