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- W245007980 abstract "ABSTRACT In order to evaluate the benefits of global warming on the double cropping with staple crops in North-Korea, four aspects such as the increasing rate of air temperature, the wintering temperatures for winter crops, the causing temperature of cool injury to rice and the securing of accumulated temperature for the double cropping in the different agricultural climate zones were analyzed by com-paring the differences between the past 22 years from 1973 to 1994 and the recent 5 years from 2002 to 2006. The warming rate in recent daily mean air temperature of 8.96℃ in North Korea was higher by 0.64℃ than that in the past with large regional variations ranging from 1.06℃ in Samjiyeon of northern inland semi-alpine zone to 12.26℃ in Jangjeon of east central coastal zone. With the accumu-lated temperatures of more than 3,150℃ and 2,650℃, it was possible to apply the double cropping patterns with winter wheat and for cropping patterns with spring potato, respectively, to the whole region except for the northern inland semi-alpine zone. However, the wintering tempe-rature higher than -15℃ of average daily minimum air tem-perature of January, cropping patterns were impossible to northern inland semi-alpine zone and most regions of the northern mountainous zone. The days passed by below 17℃ in daily mean air temperature, causing the spikelet sterility at meiotic stage of rice in July, were a lot recorded from 21 to 29 days in northern inland semi-alpine zone and from 2 to 10 days in east-northern coastal zone, respectively. Therefore, a reasonable utilization of heat / temperature resources would relieve the limiting factors in double cropping for stable production of staple crops in North-Korea." @default.
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- W245007980 date "2010-01-01" @default.
- W245007980 modified "2023-09-25" @default.
- W245007980 title "Global Warming on Double Cropping in North Korea" @default.
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