Response of Flowering Time of Larix Principis-rupprechtii to Climate Change
Using climate data from Wuzhai County,Fangshan County and Wuxiang County in Shanxi Province from 2011 to 2021 and the flowering time of Larix principis-rupprechtii,response of the flowering time of Larix principis-rupprechtii to cli-mate change was studied using a univariate linear regression method.The results showed that from 2011 to 2021,daily av-erage temperatures in Wuzhai County,Fangshan County and Wuxiang County all showed a significant upward trend with in-crease rates of 0.233 ℃/a,0.234 ℃/a and 0.272 ℃/a.The average precipitation every 3 hours showed a insignificant upward trend in Wuzhai County and Wuxiang County,and showed a significant upward trend with a increase rate of 0.143 mm/a.The flowering time daily sequence of Larix principis-rupprechtii in Wuzhai County,Fangshan County and Wuxiang County all showed a downward trend,which change rates were-0.64 d/a,-1.23 d/a and-1.10 d/a.The flowering time daily sequence of Larix principis-rupprechtii in different regions was negatively correlated with daily average temperature and average precipitation every 3 hours.That indicated that the flowering time of Larix principis-rupprechtii would correspondingly advance as temperature and precipitation increased.
NETL
NSTL
万方数据
