摘要
自2009年开始,对海淀区远大路和阜成路的"银杏焦叶症",进行了连续多年的观测与治理。结果显示:银杏焦叶症为生理性病害,本质原因在于根部吸收和供给叶部不足。主因,首先是道路"花盆环境"为决定因素;其次,"肉质根系"为内在因素;再次,"管护不力"为辅助因素。因此,不建议大量以银杏作为行道树;同时,建议提升道路银杏设计和栽植的质量和标准。同时加强精细化养护,积极应对极端天气、盐害、干旱、不透气等情况;此外,针对栽植先天严重不足的,治本需彻底破除"花盆环境",或更换树种。
Many years of observation and treatment for the ＂leaf scorch disease＂ of the Ginkgo biloba along Yuanda Road and Fucheng Road in Haidian District have been carried out since 2009. The result shows that it is a physiologic disease and the essential reason lies in the insufficient absorption in the roots and insufficient supply for leaves. The “flowerpot environment” is the main and determining factor, then the “fleshy root system” is the intrinsic factor, and then the “ineffective management and protection” is the auxiliary factor. Thus the main countermeasures and suggestions include： first, the Ginkgo biloba are not recommended as street trees in a large volume, and it is advised to enhance the qualities and standards of street Ginkgo biloba design and planting; then, the refined maintenance should be strengthened, and positive responses to extreme weather, salt damage, drought, airtight and so on should be made; besides, the “flowerpot environment” should be completely eliminated for the cases of the serious shortage of planting.
出处
《中国园林》
北大核心
2014年第11期92-95,共4页
Chinese Landscape Architecture
关键词
园林植物
银杏
焦叶症
花盆环境
对策与建议
landscape plants
Ginkgo biloba
leaf scorch disease
lfowerpot environment
countermeasure and suggestion
