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红树林中二氧化碳排放的特定物种差异:结合沉积物物理化学和微生物群落

Ziying He¹, Xueyin Zhuang², Jin Liang^2,3

¹Guangdong Forestry Survey and Planning Institute, Guangzhou, China.

Frontiers in microbiology

|November 14, 2025

概括

红树林物种身份通过改变沉积物条件和微生物群落来影响碳排放. 了解这些动态是管理红树林碳循环和缓解气候变化的关键.

科学领域:

生态生态学生态生态学
环境科学环境科学
微生物学微生物学

背景情况:

红树林生态系统对于碳捕获至关重要,但它们作为碳来源的作用,特别是二氧化碳排放,理解较少.
驱动碳排放的机制受到树种和微生物群落的影响,需要进一步研究.

研究的目的:

调查红树林物种Kandelia obovata (KO) 和Sonneratia apetala (SA) 对沉积物的物理化学,微生物结构和二氧化碳流的影响.
评估这些因素的季节性变化及其与汉江河口碳排放的关系.

主要方法:

对KO,SA和相邻的泥平地息地的沉积物质和CO2流量的比较分析.
使用分子技术评估微生物社区结构和网络相互作用.
应用部分最小方程结构方程建模来确定监管途径.

主要成果:

红树林的殖民化显著改变了沉积物状况,KO的盐度和水含量高于SA.
在红树林息地,沉积物二氧化碳流量较高,季节性变化很大,夏季达到峰值.
观察到特定物种的根呼吸模式和独特的微生物社区网络结构,SA支持更紧密的相互作用,KO表现出更高的模块化.

结论:

沉积物的物理化学特性和根呼吸是红树林碳循环的关键驱动因素.
红树林物种身份在调节二氧化碳流量方面发挥着重要作用,通过影响沉积物条件和微生物社区动态.

关键词:

坎德莉亚的卵子有两个.索纳拉提亚的胃口是什么红树林是一种红树林.微生物群落中的微生物群落.根-呼吸 CO2 流量.沉积物中的二氧化碳流.

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