[通过落下的空间变化和时间稳定性的全球量化]
Qian Wang1, Chuan Yuan2,3, Ya-Feng Zhang4
11 College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|September 5, 2024
概括
雨量,即到达森林地下的雨量,因气候和植被类型而异,干旱地区和灌木收到的雨量较少. 空间分布稳定,但树冠结构影响时间稳定性.
科学领域:
- 森林水文学和森林生态学
- 环境科学环境科学
- 植物科学 植物科学
背景情况:
- 通过降落的空间变化和时间持续性影响土壤水分,植物竞争和生态系统动态.
- 了解落模式对于有效的森林管理和生态恢复至关重要.
研究的目的:
- 量化和比较跨不同气候区和植物功能类型的落量,空间异质性和时间稳定性.
- 确定影响落特征的关键因素,并突出研究差距.
主要方法:
- 从Web of Science和CNKI数据库中对2000年至2022年间发表的554篇同行评审论文进行了元分析.
- 使用关键词搜索来检索有关通过fall特征的相关研究.
- 在不同的气候和植被类别中提取和分析了落比例,空间变异性和时间稳定性的数据.
主要成果:
- 干旱地区 (72.0%±13.6%) 的落比例较低,而潮湿地区 (75.1%±9.3%) 和半潮湿地区 (79.9%±10.4%) 的落比例较低.
- 寒冷的气候表现出比温带气候 (74.2%±7.5%) 和热带气候 (80.9%±14.6%) 的降温率低 (74.1%±14.6%). 灌木 (68.9%±14.9%) 比树木 (76.7%±9.1%) 收到的通过降落较少.
- 落的空间变异性在不同区域之间是一致的,树冠结构被确定为时间稳定的主要驱动因素.
结论:
- 布模式受到气候和植被类型的重大影响,这对水资源的可用性和生态系统的运作产生影响.
- 虽然空间分布稳定,但树冠结构在时间稳定性中起着关键作用,需要进一步研究.
- 未来的研究应该集中在全球范围的规则和基于过程的时间机制上,标准化观察以提高可比性和生态洞察力.
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