浙江省地处我国东南沿海,有2,200余公里的海岸线和4,000余公里的岛屿岸线。沿海地区气候温和,雨量充沛,年平均温度为15.7～18℃,并有冬季气温较高,夏季较低,温差较小,霜期较短的特点。但沿海风大,7、8月间蒸发量又大于降水量,夏秋之间的台风,早春的“倒春寒”,晚秋的低温等都不利于农作物的生长发育。为了保证农业的 Zhejiang Province is located on the southeast coast of China with 2,200 kilometers of coastline and 4,000 kilometers of island coastline. Coastal climate is mild, abundant rainfall, the annual average temperature of 15.7 ~ 18 ℃, and the higher winter temperatures, lower in summer, the temperature difference smaller, shorter frost characteristics. However, coastal winds and evaporation in July and August are larger than precipitation. The typhoon between summer and autumn, the “late spring cold” in early spring and the low temperature in late autumn are all unfavorable to the growth and development of crops. In order to ensure agriculture