Diversity and life strategies of cyanobacteria and bryophytes within biocrusts in the context of mining tailings disasters in Brazil

IF 3.6 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2025-05-09 DOI:10.1111/plb.70037
M. F. Oliveira, L. A. Souza, C. C. Figueredo, A. S. Maciel-Silva
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Abstract

Abstract Image

巴西尾矿灾害背景下生物壳内蓝藻和苔藓的多样性及生命策略
本研究调查了全球最严重的工业灾害之一巴西fund o大坝破裂的影响,重点研究了隐生先锋生物,它们对形成生物土壤结壳(生物外壳)至关重要。这些群落分布在浅层土壤中,具有固定碳氮、增强土壤团聚、保持水分和促进维管植物生长的重要作用,是尾矿修复的重要工具。在此框架下,我们比较了两个站点-一个受影响(IS)和一个保存(PS) -重点关注土壤化学,生物结壳分类群,以及苔藓植物和蓝藻的生命策略。分析了土壤的宏量和微量养分、有机质和阳离子交换容量(CEC和ECEC)。通过显微镜鉴定生物结皮。苔藓植物的生命策略根据孢子大小、繁殖策略和生命形式等特征进行分类,而蓝藻被分类为先驱者、停留者或随机物种。我们的研究结果显示,两个地点的生物结皮种类都很多样,在IS地区以逃亡藓类和殖民地藓类为主,而PS地区则只有多年生胸膜藓类和叶苔类。与保存完好的地点相比,受影响地点的磷含量较低,CEC和ECEC也较低。断裂4年后,IS和PS之间的苔藓植物多样性、生命策略和土壤参数仍然存在差异,凸显了尾矿开采的持久影响。鉴于生物结壳的生态作用,将其纳入监测和修复工作对生态系统恢复至关重要。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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