| 摘要: |
| 在查阅资料的基础上，采用调查和走访相结合的方法，对广东省新丰江水库周边 6 个镇的古树进行逐株调查。结果表明：新丰江水库共有古树 59 株，包括薄叶蕈树（Altingia tenuifolia）、木荷（Schima superba）、秋枫（Bischofia javanica）、榕树（Ficus microcarpa）等 13 个种，隶属于 10 科 12 属。从古树资源的结构看，古树树龄主要集中在 200~300 a， 级、 级和 级古树的数量分别为 49、8 和 2 株；树高主要集中在 17.0~25.0 m，平均树高 22.9 m，胸径主要集中在 50.0~125.0 cm，平均胸径 118.0 cm，冠幅主要集中在 10.0~17.0 m，平均冠幅 17.1 m；从空间分布特征看，古树主要集中分布在东南部的新港镇；新丰江水库的古树主要是作为乡村的风水树而得到保护，整体生长状况良好、正常、衰弱和濒危级古树分别有 46、11 和 2 株，衰弱和濒危的原因主要是部分古树缺乏管护，生境较差，或受病虫害侵扰。根据调查结果，对新丰江水库古树资源应加强管理和保护，对现有衰弱和濒危的古树应采取施肥、病虫害防治、修补树洞、改善生境等复壮措施。 |
| 关键词: 古树 种类 生长状况 保护 新丰江水库 |
| DOI： |
| 分类号: |
| 基金项目:林业科技创新平台运行补助项目“广东东江源森林生态系统国家定位观测研究站运行补助”（2016-LYPT-DW-071） |
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| Resource Characteristics and Distribution Pattern of Ancient Trees in Xinfengjiang Reservoir, Guangdong Province |
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XIE Lihong,HUANG Yuhui,WEN Xiaoying,LI Minzeng and ZHANG Weiqiang
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Xinfengjiang Forestry Administration of Guangdong Province,Heyuan,Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangdong Academy of Forestry,Guangzhou,Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangdong Academy of Forestry,Guangzhou,Xinfengjiang Forestry Administration of Guangdong Province,Guangdong Provincial Key Laboratory of Silviculture,Protection and Utilization,Guangdong Academy of Forestry,Guangzhou
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| Abstract: |
| On the basis of historical data, the ancient trees in 6 towns around Xinfengjiang reservoir were measured and located by the combined methods of field investigation and interview. The results indicated that there are 59 ancient trees that belong to 13 species, such as Altingia tenuifolia, Schima superba, Bischofia javanica, Ficus microcarpa and so on, that belong 12 genera of 10 families in 6 towns around Xinfengjiang reservoir. The structure of ancient trees resource showed that the tree age was concentrated in the range of 200 to 300 years, with 49, 8 and 2 individuals for age class , and , respectively. Tree height was mainly concentrated in 17.0~25.0 m with average height of 22.9 m. The diameter at breast height (DBH) was mainly concentrated in 50.0~125.0 cm with average DBH of 118.0 m. The crown width was mainly concentrated in 10.0~17.0 m with average crown width of 17.1 m. Most ancient trees were located in Xingang town, on the southeast of Xinfengjiang reservoir. All ancient trees around Xinfengjiang reservoir are protected as Feng-Shui woods and the overall growth condition is good. There are 46, 11 and 2 strains of normal, weak and endangered trees, respectively. The poor growing environment, lacking management and protection, as well as disease and insect pests are the primary cause for ancient trees growing weakly and dying. Some suggestions on management and protection of ancient trees around Xinfengjiang reservoir are proposed on the basis of investigation results. |
| Key words: ancient tree species growth protection Xinfengjiang reservoir |
