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长兴县古银杏树龄检测与资源特征分析

刘政, 胡孙田, 李颖, 朱培, 褚旭东, 孙勇

刘政, 胡孙田, 李颖, 朱培, 褚旭东, 孙勇. 长兴县古银杏树龄检测与资源特征分析[J]. 浙江林业科技, 2019, 39(6): 87-91.
引用本文: 刘政, 胡孙田, 李颖, 朱培, 褚旭东, 孙勇. 长兴县古银杏树龄检测与资源特征分析[J]. 浙江林业科技, 2019, 39(6): 87-91.
LIU Zheng, HU Sun-tian, LI Ying, ZHU Pei, CHU Xu-dong, SUN Yong. Ancient Ginkgo biloba Resources Characters and Age Detection in Changxing County[J]. Journal of Zhejiang Forestry Science and Technology, 2019, 39(6): 87-91.
Citation: LIU Zheng, HU Sun-tian, LI Ying, ZHU Pei, CHU Xu-dong, SUN Yong. Ancient Ginkgo biloba Resources Characters and Age Detection in Changxing County[J]. Journal of Zhejiang Forestry Science and Technology, 2019, 39(6): 87-91.

长兴县古银杏树龄检测与资源特征分析

详细信息
    作者简介:

    刘政,高级工程师,从事森林资源的保护管理工作;E-mail: cxlylz621788@sohu.com。

    通讯作者:

    孙勇,工程师,从事野生动植物保护研究;E-mail: guhpus@126.com。

  • 中图分类号: S792.95

Ancient Ginkgo biloba Resources Characters and Age Detection in Changxing County

  • 摘要: 2017年 6-8月,通过资料收集和实地调查,对长兴县古银杏资源的分布和结构特征进行分析。结果表明,长兴县古银杏有 4 047株,分布较集中,主要位于小浦、煤山、林城 3个乡镇;树龄 100 ~ 1 200 a,集中于 100 ~ 300 a,有 3 819株,占全县古银杏总株数的 94.37%;树高 6 ~ 35 m,集中于 10 ~ 20 m,共 2 945株,占全县古银杏总株数的 72.77%;胸围 0.80 ~ 7.52 m,集中于 1.0 ~ 2.0 m,共 3 234株,占全县古银杏总株数的 79.91%;平均冠幅 5 ~ 28 m,集中在 10 m以下,共 2 528株,占全县古银杏总株数的 62.46%;古银杏树龄(Y)与测围(S)存在线性关系,Y = 0.071 8S(R2 = 0.970 2)。
    Abstract: Field investigations were carried out on distribution and structural characteristics of Ginkgo biloba with age of more than 100 years in Changxing county, Zhejiang province during June and August of 2017. In March of 2018, detection was implemented on 20 G. biloba individuals random selected from above-mentioned trees. The results showed that 4047 ancient G. biloba in Changxing county concentrate distributed, with age ranged from 100 to 1 200 years, among them, 3819 ones with age of 100-300 years, accounting for 94.37% of the total. Their height varied from 6 m to 35 m, 2 945 trees were in 10-20 m, about 72.77% of the total. The perimeter at breast height of 3 234 ancient trees was concentrated in 1.0-2.0 m, accounting for 79.91 % of the total. The average crown diameter of 2 528 trees was less than 10 m in a range from 5 to 28m, about 62.4 % of the total. Determination of age of 20 ancient trees demonstrated that there was a great difference with estimated one, reached 500.82 year. It found that there was a linear relationship between age of ancient trees (Y) and perimeter at breast height (S), Y=0.071 8 S (R2=0.970 2).
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  • 期刊类型引用(4)

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    3. 梁政锦,乐笑玮,李小双. 基于层次分析法的上海市古银杏健康评价指标体系研究. 林业与环境科学. 2023(02): 89-96 . 百度学术
    4. 谭莹,朱培,王柯. 基于泰森多边形法的长兴县古树名木空间分布分析. 华东森林经理. 2020(03): 65-68 . 百度学术

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出版历程
  • 收稿日期:  2019-05-10
  • 修回日期:  2019-10-22
  • 刊出日期:  2019-12-30

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