潍坊市冬小麦生育期对气候变化的响应

为了探讨潍坊市冬小麦生育期适应气候变化的规律，利用潍坊市1980-2010年冬小麦生育期观测资料及其各生育阶段的积温、降水量、日照资料，采用线性回归和通径分析方法，对潍坊市冬小麦生育期对气候变化的响应进行统计分析。结果表明，潍坊市冬小麦整个生育期内积温和降水均呈减少趋势，日照时数显著减少，每年减少7.58 h；冬小麦全生育期显著缩短，每年缩短0.43天，播期推迟，苗期、成熟期缩短，越冬期、拔节孕穗期和灌浆期延长；在小麦拔节前，日照时数对生育期长度作用最大，拔节后，积温对生育期长度影响最大。

Response of Growth Period of Winter Wheat to Climate Change in Weifang

In order to explore the law of the period of winter wheat in Weifang adaptation to climate change, based on the growth period observation data of winter wheat and accumulated temperature, sunshine hours, precipitation data in every growth period during 1980-2010 in Weifang, the response of the growth period of winter wheat to climate change was statistically analyzed by using linear regression and path analysis methods. The results showed that: the accumulated temperature and precipitation throughout the gr...