南京城区植物物候对气候变化的响应研究

摘要

利用南京市多年花期资料以及1951-2005年的逐日气温资料，对南京城区植物物候与气候变化的关系进行研究。结果表明：各种生物物候现象的出现日期，虽然每年随气候条件变化而变化，但在同一气候区内，如果不受局地小气候的影响，其先后顺序每年保持不变。植物的物候时间对年冬季平均温度的变化响应明显，一定程度上呈相反的变化趋势，即随着冬季平均温度的升高，物候时间在逐年提前。%In this paper,the flowering observation date and daily temperature data from 1951 to 2005 were used to reveal the changes of plant phenology and its relations to climate change in Nanjing City.The results showed that the order of phenological date for the plants didn ’t change as time;the phenology data and the mean winter temperature showed inversely trends and with the mean winter temperature rising ,the plant phenology was brought for ward year by year.