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解读森林树冠雨量拦截 (FCRI) 的全球模式:地理,森林物种和方法影响的综合

Carlos R de Mello¹, Li Guo², Chuan Yuan³

¹Water Resources Department, School of Engineering, Federal University of Lavras, CP 3037, Lavras, MG, 37200-900, Brazil.

Journal of environmental management

|April 25, 2024

概括

森林树冠雨量拦截 (FRCI) 对水循环至关重要. 这一元分析揭示了影响全球森林树冠拦截 (CI),穿透 (TF) 和树干流 (SF) 的关键因素.

科学领域:

水文学的水文学
森林生态森林生态
环境科学环境科学

背景情况:

森林树冠雨量拦截 (FRCI) 是影响水和生物地球化学循环的关键过程.
了解FRCI模式对于推进森林生态系统的研究,建模和应用至关重要.
现有知识需要进行系统审查,以确定关键驱动因素和关系.

研究的目的:

系统地审查和元分析森林树冠拦截 (CI),穿透 (TF) 和茎流 (SF) 数据.
确定地理和森林变量以及实验方法对CI,TF和SF的主要影响.
为CI和TF开发通用线性模型 (GLM),以预测它们在不同条件下的行为.

主要方法:

进行了对170篇同行评审文章的元分析,包括来自234个全球网站的数据.
提取了关于TF,CI,SF,地理因素,森林特征和实验设计的数据.
应用多变量统计程序并开发GLM来分析关系和影响.

主要成果:

对于TF,CI和SF的全球主要值分别为70-80%,20-30%和<1.0%.
全球模型表明,CI和TF受到温度 (T),叶面积指数 (LAI) 和直径 (D) 的显著影响.
区域模型显示,在温带,亚热带,地中海和热带森林中,CI和TF的关键预测因素各不相同.

结论:

这一元分析提供了对全球和地区FRCI流程的全面了解.
这些发现突出了森林特征和环境变量对降雨分区的重大影响.
了解这些水文过程对于减轻气候变化对森林生态系统的影响至关重要.

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