关键词: 华东地区, 热量资源, 积温, 持续天数, 气候变暖, 气温

Abstract: Based on the daily average air temperature data from 87 meteorological stations in Eastern China from 1961 to 2010，authors identified the temporal and spatial variation characteristics of accumulated temperature steadily above 0℃ and 10℃，their lasting days，the beginning and ending date over recent 50 years by using linear trend estimation，in order to find out the impact of climate warming on the distribution of Eastern China's thermal resources. The results showed that the air temperature increase continuously in Eastern China，and the regression coefficient of annual average air temperature was 0.24℃/10y，the trend coefficient was 0.68（P<0.01），and it was well correlated with the other thermal resources indexes（P<0.05）.The accumulated temperature and lasting days steadily above 0℃ and 10℃ increased significantly in Eastern China widespread along with climate warming. The contours of the accumulated temperature steadily above 0℃(5000℃·d and 6000℃·d) and 10℃(4500℃·d and 5500℃·d) and the lasting days steadily above 0℃(300d and 340d) and 10℃(220d and 240d) moved greatly northward in the south of the North China plain and the lower reaches of the Yangtze river，and more significantly in the lower reaches of the Yangtze river. The response starting time was from the 1990s and 2000s respectively. The widespread increase of the accumulated temperature steadily above 0℃ and 10℃ and their lasting days was influenced by the beginning date advancing and the ending date delaying，furthermore the influence of the beginning date advancing was more than that of the ending date delaying.

Key words: Eastern China, Thermal resources, Accumulated temperature, Lasting days, Climate warming, Air temperature