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在中国Lushan山25公2公的森林地块的树木层中,占主导物种的空间分布模式和相关性
Jing-Xuan Wang1, Jia-Xin Zhang1, Ze-Yu Xiang1
1Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|September 11, 2023
概括
卢珊山森林中占主导地位的树种的空间模式显示了小规模的聚类,过渡到随机分布. 种类的相互作用因规模而异,显示常青和叶类型之间的复杂关系.
科学领域:
- 森林生态 森林生态
- 植物社区动态 植物社区动态
- 空间统计的空间统计.
背景情况:
- 了解森林空间模式对于生物多样性保护和生态系统管理至关重要.
- 亚热带亚热带山区拥有独特而多样化的森林生态系统.
- 卢珊山的森林结构为生态研究提供了有价值的案例研究.
研究的目的:
- 调查卢山山区区域树种的空间分布模式.
- 分析不同功能类型的树种之间的空间关系 (常青针叶树,叶大叶,常青大叶).
- 在研究区域内识别主导和构造性树种.
主要方法:
- 根据CTFS的技术规格,在卢山山的扬天平建立一个25平方米的森林地块.
- 树木物种的分类:常青针叶树,叶大叶树和常青大叶树.
- 空间点模式分析的应用,以评估物种分布和物种间的关系.
主要成果:
- 已确认的主导物种包括*Pinus taiwanensis* (构造性),*Cornus kousa*亚种. *chinensis* *Platycarya strobilacea* *Castanea henryi* *Quercus serrata* *Cornus controversa* *Eurya muricata* *Litsea elongata* *和*Eurya hebeclados* *这两种植物的生长方式是不同的.
- 主导物种在较小尺度上表现出集群模式,在较大的尺度上变得随机.
- 常青针叶树种在小规模上表现出与宽叶树种的独立性,但在大规模上表现出负相关性.
- 落叶和常绿的宽叶物种是负相关的,落叶物种显示尺度依赖的相关性.
结论:
- 卢珊山的树种分布是规模依赖的,具有明显的空间模式和相互特定的相互作用.
- 这些发现突出了影响亚热带亚山环境中森林结构的复杂生态动态.
- 保护策略应考虑主导树种的规模特定的空间关系.
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