基于Meta分析的土壤呼吸对增温的响应机制  

Response Mechanism of Soil Respiration to Warming:A Meta-analysis

作　　者：张露 黄金权 刘纪根[2,3] 潘红忠[1] 齐瑜洁 李威闻 刘小岚 ZHANG Lu;HUANG Jin-quan;LIU Ji-gen;PAN Hong-zhong;QI Yu-jie;LI Wei-wen;LIU Xiao-lan(School of Resources and Environment,Yangtze University,Wuhan 430100,China;Soil and Water Conservation Department,Changjiang River Scientific Research Institute,Wuhan 430010,China;Engineering Research Center of Mountain Flood Geological Disaster Prevention and Control,Ministry of Water Resources,Wuhan 430010,China)

机构地区：[1]长江大学资源与环境学院,武汉430100 [2]长江科学院水土保持研究所,武汉430010 [3]水利部山洪地质灾害防治工程技术研究中心,武汉430010

出　　处：《长江科学院院报》2025年第1期82-89,共8页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金项目(U19A2047,42077062);中央级公益性科研院所基本科研业务费专项(CKSF2023315/TB)。

摘　　要：增温对土壤呼吸的影响在全球碳循环中具有至关重要的作用。为了探究全球气候变暖对土壤呼吸的影响,基于Meta分析方法,定量分析增温条件下土壤呼吸速率的变化。分析国内外相关研究得到的160组有效数据,探索土壤呼吸对增温的响应特征。结果表明:与未增温相比,增温显著提高了土壤呼吸速率(提升12.4%,P<0.05);增温条件下土壤呼吸在不同因素下的响应程度为:增温幅度(提升22.9%)>年均气温(提升14.4%)>年均降雨量(提升12.4%)>气候类型(提升11.8%)>土壤类型(提升11.1%);主成分分析显示,年均气温是影响增温作用于土壤呼吸最主要的影响因子。基于统计学方法深入探讨了增温对土壤呼吸的影响,研究结果有助于丰富变化环境下的生态系统碳循环理论,为国家“双碳”战略实施提供科学依据。The effect of warming on soil respiration plays a crucial role in the global carbon cycle.To investigate the effects of global climate change on soil respiration,a meta-analysis was conducted to quantitatively assess the changes in soil respiration rate under warming conditions.Using 160 effective datasets from relevant studies both in China and abroad,we explored the responses of soil respiration to warming.Results indicate that compared to unheated conditions,warming significantly increases soil respiration rate(by 12.4%,P<0.05).Warming magnitude has the largest impact on soil respiration(increased by 22.9%),followed by annual mean temperature(increased by 14.4%),annual precipitation(increased by 12.4%),climate type(increased by 11.8%),and soil type(increased by 11.1%)in descending order.Principal component analysis reveal that annual mean temperature is the most influential factor affecting soil respiration under warming conditions.Statistical methods provide a deeper understanding of the effects of warming on soil respiration,contributing to the enrichment of ecosystem carbon cycle theories under changing environments and offering scientific evidence for the implementation of the national“dual carbon”strategy.

关 键 词：土壤呼吸 增温 META分析 影响因素 

分 类 号：S157.1[农业科学—土壤学]