【摘 要】
：
Based on the citrus temperature,precipitation,sunlight and climate risk degree,the article divides subtropics of China into three types:the low risk region,the moderate risk region and the high risk r
【出 处】
：
Journal of Geographical Sciences
论文部分内容阅读
Based on the citrus temperature,precipitation,sunlight and climate risk degree,the article divides subtropics of China into three types:the low risk region,the moderate risk region and the high risk region.The citrus temperature risk increases with inc
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