水文碎片驱动微生物碳死体减少柱状沉积物中的水文碎片:从布水库中的CAZyme基因组特征的证据
Lunhui Lu1, Xinyu Wang1,2, Yu Qin1,2
1State Key Laboratory of Lake and Watershed Science for Water Security, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
Microbial ecology
|February 11, 2026
概括
微生物死体碳 (MNC) 是水库中的重要土壤碳成分,其中真菌死体占主导地位. 布式大改变了MNC的分布,影响了水生碳捕获,并强调了研究微生物对碳循环的贡献的必要性.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 地质化学 地质化学
背景情况:
- 微生物死体碳 (MNC) 对土壤有机碳和水生碳封存至关重要.
- 水库沉积物是有机物储存和生物地球化学循环的关键区域,对环境变化敏感.
- 了解跨国公司的动态对于评估监管河流系统中的碳储存至关重要.
研究的目的:
- 调查布水库系统中多国企业的垂直分布和监管机制.
- 确定真菌与细菌死体对MNC的贡献.
- 评估级联大对跨国企业积累和碳捕获的影响.
主要方法:
- 沉积物分析以量化MNC和总沉积物有机碳 (SeOC).
- 超基因组测序用于分析微生物社区结构和碳循环中的功能潜力.
- 对碳水化合物活性酶 (CAZyme) 基因丰度的分析,以推断死体可变性.
主要成果:
- 多国企业占SeOC的15-35%,其中真菌死体是主要组成部分.
- 细菌死体表现出比真菌死体更高的可变性,由CAZyme基因配置文件表明.
- 布式水导致跨国公司分布的空间异质性,下游水库的积累减少.
- 由于大的影响,水文连接和营养系统的改变影响了MNC动态.
结论:
- 菌死体是储存库中沉积碳的主要和相对稳定的贡献者.
- 多国企业在水生碳储存中发挥着关键作用,受环境因素和人类干扰的影响.
- 准确评估被堵塞的河流中的碳捕集需要整合多国公司的动态,特别是真菌的贡献.
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