中国森林中的树种丰富性和结构多样性的空间模式和未来潜力
Changjin Cheng1,2, Guoyi Zhou3, Xuli Tang1,2
1State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.
Nature ecology & evolution
|December 2, 2025
概括
中国的森林多样性显示出不同的模式和驱动因素,降雨季节性预测物种丰富性和森林年龄推动结构多样性. 未来的气候变化可能会显著增加森林的多样性,可能会促进碳捕获,但也会加剧对危物种的竞争.
科学领域:
- 生态生态学 生态生态学
- 森林科学 森林科学 森林科学
- 生物多样性研究 生物多样性研究
背景情况:
- 了解自然森林中树种丰富度和结构多样性的细粒度模式至关重要,但由于数据的可用性而受到限制.
- 自然森林的特点是物种丰富和结构多样性,这是生态系统健康的关键指标.
研究的目的:
- 研究中国自然森林中树种丰富性和结构多样性的空间模式和驱动因素.
- 在不同的气候变化情景下,预测森林多样性的未来潜力.
主要方法:
- 利用来自中国各地3,396个地块的数据,包括314,613棵树.
- 分析了空间模式,并确定了物种丰富性和结构多样性的关键决定因素.
- 用未来气候场景 (SSP126和SSP245) 来进行多样性预测.
主要成果:
- 确定了物种丰富性 (降雨季节性) 和结构多样性 (森林年龄) 的明显驱动因素.
- 根据未来的气候情景,预计到2100年细粒物种丰富度 (~36%) 和结构多样性 (~27%) 将大幅增加.
- 观察到,多样性的增加可能会增强碳捕获,但也会加剧对危物种的竞争.
结论:
- 森林多样性模式和驱动因素的差异很大,需要量身定制的保护策略.
- 未来的气候变化为增加森林多样性和加强生态竞争带来了双重潜力.
- 这些发现强调了适应性管理的必要性,以平衡生物多样性收益与保护脆弱物种.
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