林业科学2026，Vol.62Issue(4)：1-11,11.DOI:10.11707/j.1001-7488.LYKX20260101
盐生植物根系性状对滨海湿地微生物脱氮过程的影响机制研究进展
Research Progress on Mechanisms of Halophyte Plant Root Traits Influencing Microbial Nitrogen Removal in Coastal Wetlands
摘要
Abstract
Coastal wetlands are key transitional ecosystems located at the terrestrial-aquatic interface,and influenced by multiple environmental factors such as tidal regimes,salinity gradients,and distribution of halophyte vegetation,thereby forming unique nitrogen(N)cycling patterns.Coastal wetlands play a critical role in alleviating nearshore eutrophication and maintaining ecosystem functions.Although the drivers of soil N removal processes in coastal wetlands have been widely studied,existing research has largely focused on environmental factors or microbial processes separately,whereas the regulating mechanisms of halophytes on microbial denitrification still lacks a systematic review.Halophyte root functional traits are also increasingly considered a key functional attribute in regulating the coupling relationship between vegetation characteristics and soil nitrogen cycling processes.This study systematically reviews current knowledge on the effects of hydrological and salinity gradients,as well as halophytes,on N removal in coastal wetlands,with a particular focus on root traits.We integrate how root chemical,physiological,and morphological traits influence microbial N removal through carbon(C)inputs,radial oxygen loss,and rhizosphere microenvironment regulation.The study further reveals the regulatory mechanisms of root-mediated microbial community restructuring,enrichment of key denitrifying taxa,and the regulation of N removal via coupled elemental cycles,including C-N and iron-N interactions.The aim of this review is to fill the systematic knowledge gap between halophyte root traits to microbial N removal in coastal wetlands,and provide a theoretical basis for advancing future research.关键词
滨海湿地/脱氮过程/根系性状/根系-微生物互作/根际过程Key words
coastal wetland/nitrogen removal processes/root traits/root-microbial interactions/rhizosphere processes分类
农业科技引用本文复制引用
王绍坤,李晶,崔丽娟..盐生植物根系性状对滨海湿地微生物脱氮过程的影响机制研究进展[J].林业科学,2026,62(4):1-11,11.基金项目
国家自然科学基金重点项目(32530072) （32530072）
"十四五"国家重点研发计划项目(2022YFF1301000). （2022YFF1301000）
