摘要
氮沉降的日益加剧显著影响森林生态系统碳氮循环过程。根系是植物和土壤物质交换和养分循环的桥梁,细根作为根系中生理活动最活跃的部分,在生态系统物质循环和能量流动中起着重要作用,细根对氮沉降的响应已成为重点研究领域。本文从细根生物量、细根形态特征、细根呼吸、细根分解、细根周转等方面,综合阐述了氮沉降对细根的影响趋势和潜在机制,为氮沉降对森林生态系统碳循环的作用机制提供参考。
Nitrogen deposition has posed some serious impact on the carbon-nitrogen cycling in the forest ecosystems.Root networks can be used to bridge the material exchange and nutrient cycling between plants and soil.Among them,fine roots can serve as one of the most active parts in the root system.It plays an important role in the material cycling and energy flow in forest ecosystems.A key research interest is often required for their response to nitrogen deposition.This review aims to clarify the trends and potential mechanisms of the nitrogen deposition on the fine roots.Some perspectives of fine root were considered,including the biomass,morphological features,respiration,decomposition and fine root turnover.The finding can also provide a strong reference for the nitrogen deposition on carbon cycling in forest ecosystems.
作者
赵文君
吴鹏
周华
刘娜
杨永艳
ZHAO Wenjun;WU Peng;ZHOU Hua;LIU Na;YANG Yongyan(Guizhou Academy of Forestry,Guiyang 550005,Guizhou,China;Guizhou Libo Karst Forest Ecosystem Observation and Research Station,Libo 558400,Guizhou,China;Guizhou Leigongshan Forest Ecosystem Observation and Research Station,Leishan 557100,Guizhou,China)
出处
《贵州林业科技》
2025年第4期11-16,32,共7页
Guizhou Forestry Science and Technology
基金
贵州省退耕还林提质增效典型模式研究及推广示范。
关键词
森林
氮沉降
细根
形态特征
forest
nitrogen deposition
fine root
morphological features
