昆明城市园林树木低温危害评价  

Low Temperature Injury Evaluation of Landscape Trees in Kunming

作　　者：姜蕾[1] 卓静娴 薛莲[1] 李叶芳[1] 张青华[1] 杜鹃[1] 

机构地区：[1]云南农业大学园林园艺学院,云南昆明650201 [2]云南农业大学农学与生物技术学院,云南昆明650201

出　　处：《西部林业科学》2015年第3期143-147,163,共6页Journal of West China Forestry Science

基　　金：云南农业大学园林园艺学院科学研究基金(2014003)

摘　　要：2013年冬-2014年春季,昆明出现反复寒潮天气,对当地部分园林植物造成严重的低温伤害。通过对昆明城市园林植物受害情况调查,并结合气象进行分析,探讨影响植物受害程度的相关因素。结果表明:昆明遭受低温危害的园林树木有77种,分属34科59属,受害等级达Ⅱ级及以上的共计27种,占35.1%。长时间的持续低温和反复冻融的天气及树种选择不当是造成低温危害的主要原因。来自低纬度的热带或南亚热带的树种受害较重,引自昆明以北的温带、亚热带地区的树种或本土乡土树种受害较轻或没有受害。植株的受害程度与其生长小气候环境有关。研究结果将为昆明城市园林树木低温危害预警管理和恢复提供参考。Kunming degree of ： From late 2013 to spring 2014, low temperature caused by a repeated cold-air outbreak occurred in resulted in serious injury to local common garden plants. In order to determine the factors influencing the damage, this article investigates the injury caused by low temperature in different plants along with analy- sis of climate conditions. This analysis determined that 77 plant species classified into 34 families and 59 genera were injured, 27 （35. 1% ） of which were ranked equal or greater than level 11 in injury grade. The main factors causing low temperature injury include sustained low temperature, the effect of alternative freezing and thawing, and inappropriate selection of tree species. Trees originating in tropical and south subtropical regions suffered the most serious damage, while local trees and trees originating in temperate and subtropical regions north of Kunming suffered less or no damage. The degree of tree damage was also found to be related to the microclimate in which they were situated. The tion in Kunming.

关 键 词：昆明 园林植物 低温危害 

分 类 号：S426[农业科学—植物保护]