摘要
古树国槐作为我国珍贵的生态资源之一,承载了丰富的文化和历史内涵,具有不可替代的价值。然而,由于各种自然和人为因素的影响,古树国槐面临着严重的生存威胁。分析了古树国槐常见危害,结果表明:树木老化、树干破损、冠幅失衡、有害生物损害、环境因素影响和人为破坏是古树国槐的常见危害,会导致国槐树势衰弱、干枯甚至死亡。基于上述常见危害,从枝干管理、树洞修复、树冠整理、有害生物防治、土壤管理、日常养护管理和完善古树保护条例7个方面提出了国槐古树的保护技术,具体而言,通过清除弱枝、修剪枝条促进古树长势,通过枝干支撑对树体进行支撑保护;对树洞进行填充防止古树树洞进一步腐烂和发生病虫害风险;修剪树冠缓解树体倾斜、树冠重心偏移等问题;通过有害生物防治减少有害生物对古树的危害;对土壤状况进行改良,改善古树的生长环境;并通过日常养护管理和完善古树保护条例,进一步促进古树长势恢复。该方法在北京市西长安街的一株古树国槐上进行应用后,修复效果良好。
Styphnolobium japonicum,as one of China's precious ecological resources,carries rich cultural and historical significance and possesses irreplaceable value.However,due to various natural and human factors,Styphnolobium japonicum faces severe threats to its survival.This study analyzes the common hazards of Styphnolobium japonicum and proposes corresponding conservation techniques.Research findings indicate that common hazards for Styphnolobium japonicum include tree aging,trunk damage,crown imbalance,harmful biological infestations,environmental influences,and human disruptions.These hazards can lead to weakened vigor,withering,or even the death of Styphnolobium japonicum trees.Based on the common hazards mentioned above,this study proposes protection technologies for ancient Chinese locust trees from seven aspects:branch management,tree hole restoration,tree crown arrangement,pest control,soil management,daily maintenance management,and improvement of ancient tree protection regulations.Specifically,by removing weak branches and pruning branches,the growth of ancient trees is promoted,and the tree body is supported and protected through branch support;tree holes are filled to prevent further decay and the risk of pests and diseases in ancient tree holes;the tree crown is pruned to alleviate problems such as tree tilt and center of gravity shift;the harm of harmful organisms to ancient trees is reduced through pest control;the soil condition and the growth environment of ancient trees are improved;the restoration of ancient tree growth is improved through daily maintenance management and ancient tree protection regulations are promoted.This method has been applied to an ancient tree,Styphnolobium japonicum,on West Chang'an Street in Beijing,and the restoration effect is good.
作者
聂亚芳
Nie Yafang(Beijing Jindu Landscaping&Afforesting Co.,Ltd.Beijing 100005,China)
出处
《绿色科技》
2023年第23期6-11,共6页
Journal of Green Science and Technology
关键词
古树
国槐
常见危害
保护技术
ancient trees
Styphnolobium japonicum
common hazards
conservation techniques
