摘要
法国梧桐为阔叶落叶乔木,是优良行道树种。北京市行道上种植有大量法国梧桐,每年越冬都有大量的树死亡。采用电导法结合Logistic方程对法国梧桐的抗寒性进行了研究。结果显示,0.5%氯化钠溶液处理法国梧桐枝条,其低温半致死温度为-14.61℃,对照法国梧桐的半致死温度为-16.07℃。该结果暗示,低温和融雪剂可能是北京市内行道树法国梧桐死亡的原因。
Platanus orientalis Linn. is a deciduous broad-leaved tree, which is an excellent street tree species. A large number of Platanus orientalis Linn. trees are planted on the pavement of Beijing, and a large number of trees die every winter. The cold resistance of street tree in Platanus orientalis Linn. was studied by conductance method and Logistic equation. The results showed that the semi-lethal temperature of the branches treated with 0.5% NaCl solution at low temperature was -14.61 ℃, and the semi-lethal temperature of the control was -16.07 ℃. The results suggest that low temperature and snow-melting agent may be the cause of death of street trees in Beijing.
作者
王明逸
王利军
WANG Mingyi;WANG Lijun(Affiliated Middle School,Beijing Jiaotong University,Beijing 100044,China;Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China)
出处
《山西农业科学》
2019年第9期1521-1523,1617,共4页
Journal of Shanxi Agricultural Sciences
关键词
法国梧桐
行道树
0.5%氯化钠溶液
低温半致死温度
死亡原因
Platanus orientalis Linn.
street tree
0.5% sodium chloride solution
low temperature semi-lethal temperature
cause of death
