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一、广东的气侯特点及七十年代以来的变化广东属于季风热带和亚热带湿润气候。全年月平均气温一般在10℃以上,年降水量平均在1500—2000毫米以上,雨水分布在4—9月,此时气温在22—26℃,昼夜温差5.4—8.1℃,相对湿度在80％左右。在北回归线以南,年平均气温在22℃以上,1月份月平均气温13.6—15.2℃,日照量较短而照度强,秋季秋高气爽,晴天多。这种气候条件对水稻及农作物生长、发育、成熟、收获十分优越。但广东的灾害性天气也较多。如早春的寒潮带来烂秧和连绵阴雨对冬作物后期的影响,夏秋台风虽带来有利的雨水,但对作物带来倒伏、断折和涝害,秋末冬初的寒露风带来晚稻的不实性
First, the characteristics of the climate in Guangdong and changes since the seventies Guangdong is a monsoon tropical and subtropical humid climate. The annual average temperature is generally above 10 ℃, the average annual rainfall above 1500-2000 mm, rain distribution in the April-September, when the temperature at 22-26 ℃, temperature 5.4-8.1 ℃ day and night, the relative humidity at 80 %about. To the south of the Tropic of Cancer, the annual average temperature is above 22 ℃. The monthly average temperature in January is 13.6-15.2 ℃. The sunshine is relatively short and the intensity of illumination is strong. This climatic conditions of rice and crops growth, development, maturity, the harvest is superior. However, there are more disastrous weather in Guangdong. If the cold spell of early spring brought rotten seedlings and continuous overcast rain on late winter crops, the typhoon in summer and autumn brought favorable rainwater, but brought lodging, breakage and waterlogging to crops. The cold and windy morning and early winter brought the late rice Inconsistent