| 摘要: |
| 根据全国第二次古树名木资源普查广东省成果报告数据库，获取古树群所在地、面积、主要
树种、古树株数、树龄、林分平均胸径、林分平均树高等和立地条件等信息，分析古树群分布特征，并
开展古树群的生态学特征与立地条件相关性分析，结果表明：（1）广东省共有古树群 826 处，古树 21
198 株，总面积达 2 076.65 hm2
，涵盖 84 科 269 属 549 种，古树群主要分布在粤北和粤东地区，有 417
处，占比 50.48%，而在深圳市、中山市和佛山市没有分布。（2）广东省古树群树龄呈金字塔型，古树群
数量随着树龄的增加而逐渐减少，树高和胸径的结构特征均为正态分布。（3）古树群的相关性分析显示，
树龄、树高和胸径间均有显著正相关关系。坡度与古树群的平均树龄、树高均呈显著正相关关系，海拔
和土层厚度均与古树群平均树高有显著正相关关系。 |
| 关键词: 广东省 古树群 资源特征 分布格局 |
| DOI： |
| 分类号: |
| 基金项目:广东省林学会科技计划项目（2021-GDFS-KJ-01）、广东省林业科技创新项目（2020KJCX004） |
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| Resource Characteristics and Conservation Status of Ancient Tree Groups in Guangdong Province |
|
Li Tao1, Wei Dan2, Zhang Geng2, Chen Pan3, LUO Jiancai4
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|
1.Guangdong Forestry Government Service Center;2.Guangdong Academy of Forestry/Guangdong Provincial Key Laboratory of Forest Pest Control;3.Afforestation Committee Office of Guangdong Province;4.Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/ Guangdong Academy of Forestry
|
| Abstract: |
| Guangdong province is rich in ancient and famous tree resources. Studying the characteristics
and distribution patterns of an ancient tree in Guangdong province is helpful to understand the current situation
of ancient tree resources and provides the scienti?c basis for the protection and utilization of ancient tree group
resources. Based on the previous survey data of the original ancient trees and Guangdong Province Ancient and
Famous Trees Census Operation Rules, the ancient tree groups in Guangdong province were investigated. The
location, area, main tree species, number of ancient trees, tree age, average chest diameter of a forest stand, the
average height of forest stand and site conditions of ancient tree groups, etc. were collected and analysis proposes
protection countermeasures for ancient tree groups. The results show that: (1) There are 826 ancient tree groups in
Guangdong province, with a total of 21 198 ancient trees, distributed in 2 076.65 hectares. The ancient and famous
trees belong to 84 families, including 269 genera and 549 species. The ancient tree group is mainly distributed in
northern and eastern Guangdong, with 417 groups, accounting for 50.48%, while it is not distributed in Shenzhen,
Zhongshan and Foshan. (2) The number of ancient tree groups gradually decreases with the increase of tree age, and the structural characteristics of tree height and chest diameter are normally distributed. (3) Correlation
analysis of ancient tree groups showed that there was a significant positive correlation between tree age, tree
height, and chest diameter. The slope was signi?cantly positively correlated with the average age and height of the
ancient tree group, and the altitude and soil thickness were signi?cantly positively correlated with the average tree
height of the ancient tree group. (4) In terms of the current situation of management and protection, there are 409
ancient tree groups with management and protection measures in Guangdong province, accounting for 49.52%,
and 417 without management measures or natural growth, accounting for 50.48%. |
| Key words: Guangdong province ancient trees distribution characteristics |
