摘要
通过对山东省乳山市大孤山镇万户村古银杏调查,结果显示其根系腐烂面积达2/3以上,古树枝条在树冠范围内不同方位均有枯死的情况,且在根系腐烂的北部枯枝情况严重,树势衰弱。采用银杏苗倒插皮接古树复壮技术,辅以清理杂物、配制营养土回填等改土措施,对濒危古树进行复壮。对复壮后该树1年生枝、叶片、种子进行调查对比,发现复壮后古树生长状况明显改善。
Based on the investigation of the ancient ginkgo tree at Dagushan,Rushan City, Shandong province, found that the root area was rotted more than 2/3,and the branches were dead in different range of the tree crown. In the northern branches ,the roots rotting seriously, and the tree is vigor. Using the ginkgo seedling root rejuvenation technology by bark grafting, supplemented by sundries cleaning, preparing nutritious soil backfill and other soil improvement measures, the endangered trees was rejuvenized. Based on the comparative investigation of the annual branches, leaves, seeds of this tree, found that the growth condition of the tree was improved obviously after rejuvenation.
作者
王文英
WANG Wenying(Forest bureau of Zhoucun,Zibo Shangdong 25530)
出处
《山东林业科技》
2017年第3期62-65,共4页
Journal of Shandong Forestry Science and Technology
基金
山东省农业良种工程课题:珍贵乡土树种种质资源收集保存与评价:鲁农良字[2011]7号
国家植物种质资源共享平台-国家林木(含竹藤花卉)种质资源平台(平台子系统):银杏和侧柏种质资源节点(编号:2013-39)
关键词
银杏
古树衰老
复壮技术
复壮效果
Ginkgo biloba L.
ancient trees aging
rejuvenation technology
rejuvenation effect
