八都岕古银杏树势衰弱成因及其复壮技术

摘要

对长兴县八都岕古银杏（Ginkgo biloba）树生长状况进行调查分析，结果表明：土壤条件差、人为干扰、恶劣天气和病虫危害是古银杏生长衰弱的主要因素，并提出了土壤改良、树洞处理、树体保护、授粉控制、病虫害防治等复壮技术。%Investigation was made on growth of ancient Ginkgo biloba in Changxing, Zhejaing province. The result demonstrated that poor soil conditions, human disturbance, bad weather and pest damage are the main causes of weak growth of ancient Ginkgos. Rejuvenation techniques were recommended such as soil improvement, tree hole treatment, trunk protection, pollination control, pest control.