江西省银杏古树资源及生长特性分析  

Research on Ancient Ginkgo biloba Resource and Growth Characteristic in Jiangxi Province

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

机构地区：[1]山东农业大学林学院,山东泰安271018

出　　处：《西南林业大学学报（自然科学）》2015年第1期58-62,共5页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家科技支撑计划课题(2012BAD21B04)资助;山东省农业良种工程项目(201009)资助;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)资助

摘　　要：以江西省银杏古树为研究对象,对其进行实地调查,分析银杏古树资源状况及生长特性。结果发现:江西省共有银杏古树442株,其中153株具生长指标,位于江西省的9个(区)市,45个县(市、区),63个乡镇;已知性别的88株古银杏中,雌株占75.00%。在部分有生长指标数据的银杏古树中,树高最高为40.0 m,最矮为7.0 m;树龄最大为2 900 a,最小为100 a;胸径最大为3.57 m,最小为0.20 m;冠幅最大为31.00 m,最小为0.55 m。垂乳银杏有7株,单株垂乳数最多为10个,最大垂乳长60 cm;复干银杏有22株,单株复干数最多达15个,复干胸径最大为1.15 m;有双色银杏,异果银杏;典型的古银杏群落有2个。Ancient Ginkgo biloba was selected as material to make fact-finding. The result showed that there were 442 ancient Ginkgo biloba trees in Jiangxi Province, which were distributed among 9 cities ,45 countries and 63 villages and towns. Among of them, 153 trees had growth indexes. In the 88 known sex of Ginkgo biloba,the fe- male plants accounted for 75.00%. The maximum tree height was 40.0 m, while the minimum was 7.0 m. The maximum tree age was 2 900 years and the minimum was 100 years. The maximum DBH was 3.57 m while the mini- mum was 0.20 m. The maximum average crown was 31.0 m while the minimum was 0. 55 m. There were 7 chichied ginkgo trees,and the maximum number of ehichies was 10, and the largest chichi was 60 era. There were 22 muh- trunked ginkgoes, of which the maximum number of muh-trunks was 15 per individual and the DBH of the biggest muir-trunk was 1.15 m. There were also two-colored ginkgoes, different fruit ginkgo. There are two typical ancient ginkgo trees in Jiangxi Province.

关 键 词：银杏 古树资源 古树群落 特异种质 生长指标 

分 类 号：S718.54[农业科学—林学]