关键词: 年周期变化, 年周期变化

Abstract: In order to evaluate the influence of temperature change on wood plants in Anhui Province, based on the historical climate data and phenological data in the same period from Xuancheng, Hefei, Chuzhou, Fengyang and Suzhou station during 1992-2008, the author statistically analyzed the change tendency of air temperature and phenology and their correlativity, the correlations of each phenology, and the influences of temperature change in different time interval on phenology in the last 17 years. The result showed that: in the last 17 years, spring pheno logical phases of Robinia hispida Linn became earlier and their autumn phases were postpone and thus their growing period prolonged. The change of phenology was quite sensitive to the influences of air temperature. It showed one-degree increase of average air temperature in key period during last autumn was associated with an advance of spring phenology by 0.4-3.1 days, average 1.5 days; and one-degree increase of average air temperature in key period from April to July was associated with a delay of autumn events by 4.4-4.6 days, average 4.5 days.