日本的柑桔主要是温州蜜柑,它的栽培面积自1960年以后飞速地增长起来。1964年的栽培面积比1955年增加2.5倍以上。随着栽培面积的扩大,柑桔的种植区已发展到原来不适宜种植的山麓与山腰地带。但冷空气容易停滞的山麓,易遭冻害,而在正当强风的山腰,所谓寒风害就自然增大了。在冬天柑桔的寒风害与冻害是明显不同 Japan’s citrus is mainly Wenzhou Satsuma, its cultivated area since 1960 after the rapid growth. The cultivation area in 1964 was more than 2.5 times higher than in 1955. With the expansion of cultivated area, the planting area of ​​citrus has developed into the foothills and mountainside areas which are not suitable for cultivation. But the cold air easily stagnant foothills, vulnerable to frost damage, and in the proper strong winds of the mountain, the so-called cold wind damage naturally increased. In the winter citrus cold damage and frost damage is significantly different