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Predicting the Changes in Cultivation Areas of Walnut Trees (Juglans sinensis) in Korea Due to Climate Change Impacts
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 Title & Authors
Predicting the Changes in Cultivation Areas of Walnut Trees (Juglans sinensis) in Korea Due to Climate Change Impacts
Lee, Sang-Hyuk; Lee, Peter Sang-Hoon; Lee, Sol Ae; Ji, Seung-Yong; Choi, Jaeyong;
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The objective of our study was to predict future cultivation areas for walnut trees (Juglans sinensis), using the cultivation suitability map provided from Korea Forest Service and MaxEnt modelling under future climate conditions. The climate conditions in 2050s and 2070s were computed using the Regional Climate Prediction (RCP) 4.5 and 8.5 scenarios with the HadGEM2-AO model. As a result, compared to the present area, the cultivation area of the western Korea including Chungcheongnamdo, Jeollabuk-do, Jeollanam-do decreased on a national scale under RCP 4.5, and those of Gyeongsangbukdo and part of Gyeongsangnam-do decreased under RCP 8.5. However, Gangwon-do which is located in higher altitude over 600 meters than other regions showed increases in cultivation areas of 18.3% under RCP 4.5 and of 56.6% under RCP 8.5 by 2070s. The predicted map showed large regional variations in the cultivation areas with climate change. From the analysis of current top ranking areas, the cultivation areas in Gimcheon-si and Yeongdong-gun dramatically decreased by 2070s under RCP 4.5 and 8.5; that of Gongju-si decreased more under RCP 4.5; and those of Muju-gun and Cheonan-si sustained the areas by 2070s under both scenarios. The results from this study can be helpful for providing a guide for minimizing the loss of walnut production and proactively improving productivity and quality of walnuts with regard to unavoidable climate change in South Korea.
Cultivation Area;MaxEnt Model;Regional Climate Prediction;Climate Change;
 Cited by
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34. (2015. 12. 01)