浙江省古银杏资源调查与生长特性分析  

Investigation on resources and analysis of growth characteristic of ancient ginkgo trees in Zhejiang Province

作　　者：孙立民[1] 刘晓静[1] 邢世岩[1] 吴岐奎[1] 王萱[1] 

机构地区：[1]山东农业大学,山东泰安271018

出　　处：《林业科技开发》2015年第1期118-122,共5页China Forestry Science and Technology

基　　金：国家科技支撑计划课题(2012BAD21B04);山东省农业良种工程课题(201009);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)(2013-39)

摘　　要：以浙江省银杏古树为对象,通过资料收集和实地调查,结果显示:浙江省有银杏古树4 962株,分布在11个市(区)55个县(市、区)和161个乡(镇)。350株有生长指标,雌株占63.19%。树高最大为50.0 m,最小为5.0m;树龄最长为1 600 a;胸径最大为3.2 m,最小仅为0.13 m;平均冠幅最大为36.0 m,最小为3.5 m。垂乳银杏有4株,复干银杏有27株,雌雄同株2株,垂枝银杏1株。对浙江省银杏古树群落的分布和生长状况进行了调查。Data collection and field survey were conducted on ancient ginkgo trees in Zhejiang Province.The results showed that 4 962 ancient trees of Ginkgo biloba distributed in 11 cities （district）,55 counties （county-level cities,district） and 161 townships （towns）.The 350 ancient ginkgo trees existed growth indexes,among which female trees accounted for 63.19％.The maximum tree height was 50.0 m,the minimum tree height was 5.0 m.The oldest tree was 1 600 years.The maximum DBH was 3.2 m,the minimum DBH was only 0.13 m,the maximum of average crown was 36.0 m,while the minimum of average crown was 3.5 m.There were 4 chichi ginkgo trees,27 mult-trunk ginkgoes,2 monoecism ginkgo trees and 1 pendulous ginkgo tree.We also investigated the distribution and growth condition of ancient ginkgo tree communities in Zhejiang Province.

关 键 词：银杏古树 生长特性 古树群落 分布 

分 类 号：S792.95[农业科学—林木遗传育种]