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Using Digital Climate Modeling to Explore Potential Sites for Quality Apple Production  

Kwon E. Y. (경희대학교 생태시스템공학과)
Jung J. E. (경희대학교 생태시스템공학과)
Seo H. H. (원예연구소 과수과)
Yun J. I. (경희대학교 생태시스템공학과)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.6, no.3, 2004 , pp. 170-176 More about this Journal
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 S6 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 LID ratio, which were expressed as empirical functions of temperature based on long-term field observations. AU themes were prepared as ArcGlS 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.
Keywords
Site selection; Orchards; GIS, Microclimate; Apple; Decision support system;
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