2010年山城冷冻害的极端性气候特征及对花木的危害(英文)

[目的]对2010年山城冷冻害的极端性气候特征及对花木的危害进行研究。[方法]利用山城北碚1951～2010年旬平均温度和极端最低温度资料及2008～2010年黄桷兰的侯生长状况与物候观测资料,运用统计分析方法,分析该地区2010年冷冻害在温度与持续时间等方面的极端性以及2010年极端性冷冻害对花木的危害。[结果]2010年冬季冷冻害是山城近60年来连续持续低温时间最长、持续时段内平均温度最低和对花木生长与越冬危害最严重的极端冷冻害,使山城北碚地区原产于热带、亚热带的花木受影响而发生严重灾害。[结论]据此研究采取针对性的防御措施,可减少给花木业主造成的损失。

Climatic Characteristics of Extreme Cold and Frost Disaster and the Effects on Flowers and Trees in Mountain City in 2010

[Objective] The aim was to explore climatic characteristics of cold and frost disaster and the effects on flowers and trees in mountain city in 2010. [Method] Extremism of cold and frost disaster in temperature and lasting period, and the effects on flowers and trees in 2010 were researched based on information of average ten-day temperatures and extreme lowest temperature in 1951-2010 and Michelia alba DC. growth in a Hou in 2008-2010, as per statistical analysis technique. [Result] Cold and frost disaster in winter of 2010 proved the longest in lasting period, lowest in average temperature, and most serious for flowers and trees, resulting in serious loss of flowers and trees in Beibei area. [Conclusion] Countermeasures in the research would reduce owners’ loss in flowers and trees.