郑州市行道树风倒原因及预防措施张亚民，刘志芳，袁秀芳（郑州市管城绿化队）（郑州市金水河管理处）郑州市地处黄河中下游冲积平原，土壤肥沃，几年来城市绿化建设取得了可喜的成绩，漫步市内大街小巷，处处可以看到绿树成荫、繁花簇簇。但春夏，夏秋之际，在大风阴雨天... Causes and Preventive Measures of Windfall in Zhengzhou City Zhang Yamin, Liu Zhifang, Yuan Xiufang (Zhengzhou City Guancheng Green Team) (Zhengzhou Jinshui Management Office) Located in the alluvial plain in the middle and lower reaches of the Yellow River, Zhengzhou is rich in soil. In recent years, urban afforestation has been achieved Gratifying results, walking through the streets in the city, everywhere you can see trees, flowers. But spring and summer, summer and autumn, in a stormy day ...