전자기후도를 이용한 고품질 사과생산 후보지역 탐색 = Using Digital Climate Modeling to Explore Potential Sites for Quality Apple Production

다국어 초록 (Multilingual Abstract)

This study was carried out to establish a spatial decision support system for evaluating climatic aspects of a given geographic location in complex terrains with respect to the quality apple production. Monthly climate data from 56 synoptic stations across South Korea were collected for 1971-2000. A digital elevation model (DEM) with a 10-m cell spacing was used to spatially interpolate daily maximum and minimum temperatures based on relevant topoclimatological models applied to Jangsoo county in Korea. For daily minimum temperature, a spatial interpolation scheme accommodating the potential influences of cold air accumulation and the temperature inversion was used. For daily maximum temperature estimation, a spatial interpolation model loaded with the overheating index was used. Freezing risk in January was estimated under the recurrence intervals of 30 years. Frost risk at bud-burst and blossom was also estimated. Fruit quality was evaluated for soluble solids, anthocyanin content, Hunter L and A values, and L/D ratio, which were expressed as empirical functions of temperature based on long-term field observations. All themes were prepared as ArcGIS Grids with a 10-m cell spacing. Analysis showed that 11 percent of the whole land area of Jangsoo county might be suitable for quality `Fuji` apple production. A computer program (MAPLE) was written to help utilize the results in decision-making for site-selection of new orchards in this region.