This study aims to investigate the effects of climatic variability on the citrus yield in Jeju-do. This study analyzed the relationship between the citrus yield and climate elements(temperature, rainfall, sunshine duration etc) at each growing season. Temperature shows a positive relationship with the period of flower bud for the yield of citrus. The rainy days of bud bursting period have a negative relation in Seogwipo area. The sunshine duration of the 1st physiological fruit drop period was positively related to citrus yield in Jeju and Seogwipo area. The maximum temperature of the 2nd physiological fruit drop period and the fruit enlargement period were negatively related to the citrus yield. In Jeju and Seogwipo area, about 60% of the variation of citrus yield is explained by the variation of climatic factors. The sunshine duration of the 1st physiological fruit drop period and fruit enlargement period were selected to the yield estimation in Jeju. In Seogwipo, the number of rainy days and the sunshine duration of the 1st physiological fruit drop period were selected.

Abstract
 1. 서론
 2. 연구자료 및 방법
 3. 생육시기별 기후와감귤 생산량의 관계
  1) 화아분화기 기후와 생산량의 관계
  2) 발아 및 개화기의 기후와 생산량의 관계
  3) 생리 낙과기 기후와 생산량의 관계
  4) 과실 비대기 기후와 생산량의 관계
 4. 기후변동에 따른 감귤 생산량 변동
 5. 요약 및 결론
 References

• 강민철(건국대학교 지리학과) | Mincheol Kang (Department of Geography, Konkuk University)
• 이승호(건국대학교 지리학과) | Seungho Lee (Department of Geography, Konkuk University) Correspondence