Soil bacterial community structure in the habitats with different levels of heavy metal pollution at an abandoned polymetallic mine

Journal of Hazardous Materials, Год журнала: 2022, Номер 442, С. 130063 - 130063

Опубликована: Сен. 26, 2022

Язык: Английский

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Altitudinal Variation Influences Soil Fungal Community Composition and Diversity in Alpine–Gorge Region on the Eastern Qinghai–Tibetan Plateau

Journal of Fungi, Год журнала: 2022, Номер 8(8), С. 807 - 807

Опубликована: Июль 30, 2022

Soil fungi play an integral and essential role in maintaining soil ecosystem functions. The understanding of altitude variations their drivers fungal community composition diversity remains relatively unclear. Mountains provide open, natural platform for studying how the responds to climatic variability at a short distance. Using Illumina MiSeq high-throughput sequencing technique, we examined among seven vegetation types (dry valley shrub, valley-mountain ecotone broadleaved mixed forest, subalpine coniferous-broadleaved coniferous alpine shrub meadow, meadow) along 2582 m gradient alpine-gorge region on eastern Qinghai-Tibetan Plateau. Ascomycota (47.72%), Basidiomycota (36.58%), Mortierellomycota (12.14%) were top three dominant phyla all samples. differed significantly gradients. α-diversity total symbiotic had distinct hollow pattern, while saprophytic pathogenic showed no obvious pattern β-diversity fungi, was derived mainly from species turnover processes exhibited significant distance-decay pattern. properties explained 31.27-34.91% variation (total trophic modes) gradients, effects nutrients varied by modes. pH main factor affecting components affected geographic distance, those only properties. This study deepens our knowledge regarding diversity, confirms that vary modes gradients region.

Язык: Английский

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Effects of microtopography on soil microbial communities in alpine meadows on the Qinghai-Tibetan Plateau

CATENA, Год журнала: 2024, Номер 239, С. 107945 - 107945

Опубликована: Март 5, 2024

Язык: Английский

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Altitude-induced shifts in bacterial communities involved in soil organic phosphorus cycling on Taibai mountain

CATENA, Год журнала: 2025, Номер 255, С. 109014 - 109014

Опубликована: Апрель 9, 2025

Язык: Английский

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Biodiversity in mountain soils above the treeline

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also case for soils, but no study to date provided an overall synthesis of current state knowledge. Here we fill this gap with a first global analysis published research on cryptogams, microorganisms, and fauna soils above treeline, structured Based corpus almost 1400 publications expertise 37 soil scientists worldwide, summarise what known about distribution patterns each these organismal groups, specifically along elevation, provide overview available knowledge drivers explaining their changes. In particular, document elevation‐dependent decrease faunal while cryptogams there initial increase followed by towards nival belt. Thus, our data confirm key role that elevation plays shaping biodiversity organisms soils. The response prokaryote turn, was more diverse, whereas fungal appeared be substantially influenced plants. As far as available, describe characteristics, adaptations, functions species, despite lack ecological information uncultivated majority prokaryotes, fungi, protists, illustrate remarkable unique life forms histories encountered alpine By applying rule‐ well pattern‐based literature‐mining approaches semi‐quantitative analyses, identified hotspots European Alps Central Asia revealed significant gaps taxonomic coverage, particularly among biocrusts, fauna. We further report thematic priorities treeline identify unanswered questions. Building upon outcomes synthesis, conclude set opportunities worldwide. Soils fulfil critical make essential contributions land. Accordingly, seizing closing appears crucial enable science‐based decision making regions formulating laws guidelines support conservation targets.

Язык: Английский

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Plant litter chemistry drives long‐lasting changes in the catabolic capacities of soil microbial communities

Functional Ecology, Год журнала: 2023, Номер 37(7), С. 2014 - 2028

Опубликована: Июнь 6, 2023

Abstract Although microbial communities play an important role in explaining plant litter decomposition rates, whether and how chemistry may alter catabolic capacities of soil remains poorly studied. During a 1‐year experiment 12 herbaceous species with contrasting chemistry, we examined the effect type (roots vs. leaves) chemical traits on resulting capacity to degrade wide range carbon substrates variable complexity (MicroResp™ method). Litter impacted both total activity as well specific communities. In early stages was mainly influenced by amount C N leachates, N, P Mg, then, later, lignin concentrations. Some could also be related initial chemistry. Overall, trait effects decreased over time relative importance shifted during process. Our results highlight that is strong driver decomposers and, while its fades time, it substantial throughout These long‐lasting suggest persistent control ecosystems recurrent production. Soil activities were driven broadly same across leaf root litters. Synthesis . Such represent indirect Disentangling this overlooked represents next challenge. We argue such research line should open ground‐breaking perspectives for reconsidering our current understanding mechanistic links between rate. Read free Plain Language Summary article Journal blog.

Язык: Английский

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Shifting relationships between SOC and molecular diversity in soils of varied carbon concentrations: Evidence from drained wetlands

Geoderma, Год журнала: 2023, Номер 433, С. 116459 - 116459

Опубликована: Апрель 5, 2023

The molecular diversity of soil organic matter (SOM) is considered to be a critical factor influencing carbon (SOC) persistence, and found show positive relationship with SOC in many upland soils relatively low concentrations. However, the SOM diversity-SOC remains under-investigated high-SOC such as wetlands, which exhibit divergent accumulation mechanisms compared may induce contrasting shifts composition during drainage-induced changes. Here we utilized three wetlands (i.e., two fens bog) that encompassed wide range experienced decades artificial drainage investigate after drainage. was assessed based on pyrolysis products using pyrolysis–gas chromatography-mass spectrometry, its factors (including plant inputs, minerals, extracellular enzyme activity, etc.) were evaluated. We observed responses long-term investigated wetlands. While increased concentration low-SOC ≤ 60 mg g−1 soil) fen drainage, it did not change > regardless variations. inputs (e.g., root mass) drove these microbial processing rather than dominated increases diversity, thereby resulting decoupling soils. These findings suggest had non-linear In organic-rich peatlands, increase contrast Our study provides novel, diversity-based perspective understanding wetland stability context caused by increasing human activity and/or climate

Язык: Английский

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Habitat partitioning of soil microbial communities along an elevation gradient: from plant root to landscape scale

Oikos, Год журнала: 2022, Номер 2023(1)

Опубликована: Окт. 17, 2022

Within a landscape, multiple habitats exist for soil microbial communities. But how these shape community composition requires an understanding of the way in which diversity is impacted across broad range spatial scales. Mountain ecosystems are excellent systems to study communities, because multitude climate and variables change within relatively small distance. We investigated structure bulk rhizosphere soils beneath three plant species, Vaccinium myrtillus , Juniperus communis Picea abies that local communities along elevation gradient French Alps. examined impact climate, properties, root chemical morphological traits had on α‐ β‐diversities. The most abundant bacterial phyla detected both were Proteobacteria, Actinobacteria, Acidobacteria Verrucomicrobia. Along gradient, did not display clear distribution pattern between soils. For fungi, dominant Ascomycota Basidiomycota, contrasting patterns found Overall, fungal α‐diversity responded differently as well compartments (bulk versus soil), revealing no significant any structuring but increasing compartment P. just below treeline. Changes β‐diversity with related mostly physical properties. Bacterial more species identity, vegetation belowground compared whilst opposite was soil. Our results highlight environmental changes at landscape scale (e.g. associated elevation, properties or climate), significantly refines via niche.

Язык: Английский

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Biodiversity in mosaic communities: Soil microbial diversity associates with plant functional groups relating to soil available phosphorus in Tibetan alpine meadow

European Journal of Soil Biology, Год журнала: 2023, Номер 116, С. 103479 - 103479

Опубликована: Март 20, 2023

Язык: Английский

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Environmental drivers of earthworm communities along an elevational gradient in the French Alps

European Journal of Soil Biology, Год журнала: 2023, Номер 116, С. 103477 - 103477

Опубликована: Март 28, 2023

Язык: Английский

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