摘要
法桐是兰州市常见园林树种。2018年观察发现雁南路外国语中学段法桐行道树半数以上的植株长势衰弱,其中路南行道树长势衰弱现象明显重于路北。分析其原因是上一年夏季日灼焦叶和当年4月5日的晚霜雪害所致,其中严重衰弱植株表现为萌蘖重建枝冠次年风干的恶性循环而连年长势衰弱。
Platanus orientalis is a common garden tree in Lanzhou. In 2018, it was observed that more than half of the trees on the middle school of foreign languages of Yannan road had weak growth, and the trees on the south road had weaker growth than those on the north road. The causes were analyzed to be caused by sunburnt leaves in summer of the previous year and late frost and snow damage on April 5 of the same year, among which the severely weakened plants showed the vicious cycle of tiller rebuilding branch crown and air-drying in the following year, and the growth was weakened year by year.
作者
张兰福
王俊杰
ZHANG Lan-fu;WANG Jun-jie(Qilihe District Education Bureau of Lanzhou,Lanzhou 730050,China;Gansu Academy of Forestry,Lanzhou 730020,China)
出处
《甘肃林业科技》
2019年第1期47-50,共4页
Journal of Gansu Forestry Science and Technology
关键词
法桐
行道树
长势衰弱
观察分析
Platanus acerifolia
stree tree
growth debility
observation analysis
