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将森林覆盖面和森林碎片化与不同森林管理实践下的植物群落的黑暗多样性联系起来
1Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China.
Journal of environmental management
|July 29, 2025
概括
森林覆盖面和碎片化影响植物物种多样性,包括暗色多样性,但影响因森林管理而异. 了解这些关系有助于生物多样性保护和生态恢复工作.
科学领域:
- 生态生态学 生态生态学
- 林业 林业 林业 林业 林业
- 生物多样性科学 生物多样性科学
背景情况:
- 暗色多样性,代表一个物种池中本地缺席的物种,对于理解社区集会至关重要.
- 森林覆盖面和森林碎片化是生物多样性的关键驱动因素,但它们对黑暗多样性的影响仍然未得到充分探索.
- 管理的森林呈现出复杂的场景,人类实践与景观结构相互作用,塑造植物群落.
研究的目的:
- 研究森林覆盖面和森林碎片化对管理森林中植物物种多样性的影响,特别是暗色多样性.
- 评估不同的森林管理实践如何调解景观结构和植物群体属性之间的关系.
- 确定暗色多样性和社区完整性对未来物种多样性趋势的预测能力.
主要方法:
- 编制一个全面的数据库来量化观察到的多样性,黑暗的多样性和社区的完整性.
- 应用回归模型,将森林管理类型作为随机因素.
- 分析不同森林类型和时间点的森林覆盖面,碎片化和社区指标之间的关系.
主要成果:
- 在森林覆盖面/森林碎片化与观察到的多样性,黑暗多样性和社区完整性之间发现了显著的,尽管在全球范围内很弱的关联.
- 森林管理实践显著影响覆盖面和碎片化如何影响黑色多样性.
- 热带种植林 (旋转≤15年) 对覆盖面和碎片化增加表现出复杂的反应,而温带森林 (旋转>15年) 对碎片化对暗色多样性的积极影响.
结论:
- 森林覆盖面和森林碎片化是植物多样性指标的重要,尽管很弱的全球预测指标,包括暗色多样性.
- 森林管理实践是关键的调节者,需要定制的保护和恢复策略.
- 暗色多样性和社区完整性是预测物种多样性变化的有价值指标,指导生物多样性保护和环境管理.
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