Forest thinning alleviates the negative effects of precipitation reduction on soil microbial diversity and multifunctionality

Biology and Fertility of Soils, Год журнала: 2023, Номер 59(4), С. 423 - 440

Опубликована: Март 25, 2023

Язык: Английский

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Rare subcommunity maintains the stability of ecosystem multifunctionality by deterministic assembly processes in subtropical estuaries

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Апрель 19, 2024

Microorganisms, especially rare microbial species, are crucial in estuarine ecosystems for driving biogeochemical processes and preserving biodiversity. However, the understanding of links between ecosystem multifunctionality (EMF) diversity bacterial taxa estuary remains limited. Employing high-throughput sequencing a variety statistical methods, we assessed diversities assembly process abundant bacterioplankton their contributions to EMF subtropical estuary. Taxonomic analysis revealed Proteobacteria as predominant phylum among both taxa. Notably, demonstrated significantly higher taxonomic larger species pool than Additionally, our findings highlighted that deterministic predominantly shape communities, with heterogeneous selection exerting stronger influence on Further reveals beta-diversity impacts EMF, whereas alpha did not. The partial least squares path modeling (PLS-PM) beta taxa, main biotic factor, directly affected while temperature total organic carbon (TOC) were additional key factors determine relationship EMF. These advance distribution features ecological knowledge estuaries, provide reference exploring different biospheres aquatic environments.

Язык: Английский

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Root functional traits mediate rhizosphere soil carbon stability in a subtropical forest

Soil Biology and Biochemistry, Год журнала: 2021, Номер 162, С. 108431 - 108431

Опубликована: Сен. 27, 2021

Язык: Английский

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Responses of soil rare and abundant microorganisms to recurring biotic disturbances

Soil Biology and Biochemistry, Год журнала: 2022, Номер 177, С. 108913 - 108913

Опубликована: Дек. 14, 2022

Язык: Английский

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Regional emissions of soil greenhouse gases across Tibetan alpine grasslands

Geoderma, Год журнала: 2024, Номер 443, С. 116843 - 116843

Опубликована: Март 1, 2024

Soil greenhouse gas (GHG) emissions play an important role in regional climate feedback on the Qinghai-Tibetan Plateau (QTP). Previous studies have focused soil GHGs based observations within a limited space QTP, however, GHG remain unclear. Analyzing samples from 25 sites along 2,700 km transect across we showed significantly higher CO2 and N2O emission rates alpine meadows than other upland grassland types, but similar CH4 uptake all types. The spatial variations of total balance were dominated by emission. We found that was primarily constrained high pH, low moisture nutrient availability, fungal abundance, inhibited while methanotrophic abundance. Furthermore, estimated current 144.4 Tg CO2-eq yr−1 for surface Tibetan grasslands, which increased 17.6%, 24.8%, 38.9% under warming scenarios 1.5℃, 2℃ 3℃, respectively. Our results provide baseline responding to QTP.

Язык: Английский

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Mixing with native broadleaf trees modified soil microbial communities of Cunninghamia lanceolata monocultures in South China

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Март 5, 2024

Mixing with different broadleaf trees into the monocultures of

Язык: Английский

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The Early Effects of an Agrivoltaic System within a Different Crop Cultivation on Soil Quality in Dry–Hot Valley Eco-Fragile Areas

Agronomy, Год журнала: 2024, Номер 14(3), С. 584 - 584

Опубликована: Март 14, 2024

The co-allocation of photovoltaic arrays with crops presents a promising strategy to mitigate the conflict between photovoltaics and agricultural land. However, there is notable lack quantitative research on impact agrivoltaic system land quality in fragile areas. In this study, peanuts (Arachis hypogaea) ryegrass (Lolium perenne) were cultivated array dry–hot valley southwest China, an off-site native serving as control. Sixteen soil physicochemical biochemical parameters measured gap under-panel control area. Results demonstrated that significantly enhanced moisture, organic carbon, nitrogen–phosphorus–potassium nutrients, microbial biomass, urease activity. It also led varying degrees increase pH electrical conductivity, along reduced sucrase phosphatase comparison control, notably improved multifunctionality. Specially, cultivation had more pronounced positive than cultivation, greater effect multifunctionality improvement ryegrass. This study provides fundamental data support developed regions, alleviate

Язык: Английский

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Synergistic variation of rhizosphere soil phosphorus availability and microbial diversity with stand age in plantations of the endangered tree species Parashorea chinensis

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Апрель 12, 2024

Introduction Soil physicochemical properties and nutrient composition play a significant role in shaping microbial communities, facilitating soil phosphorus (P) transformation. However, studies on the mechanisms of interactions between P transformation characteristics rhizosphere diversity P-deficient soils longer time scales are still limited. Methods In this study, were collected from pure plantation Parashorea chinensis ( P. ) at six stand ages subtropical China, dynamic fractions analyzed to reveal variation their with age. Results Our findings revealed that across strongly acidic state, pH values ranging 3.4 4.6, available contents 2.6 7.9 mg·kg -1 . The adsorption by Fe 3+ presence high levels steady-state organic highly restricted availability soil. On long scales, acid phosphatase activity biomass main drivers activation. Moreover, pH, P, ammonium nitrogen identified as key factors driving community diversity. As age increased, most content indicators firstly increased then decreased, conversion other forms bio-available became difficult, fertility began decline. bacteria able maintain stable species abundance contrast, had greater effect fungal than bacteria. Shannon Simpson indices varied 4.81 0.70 for fungi, respectively, compared only 1.91 0.06 Microorganisms dominant development relationship Discussion conclusion, microorganisms plantations gradually adapt acidic, low environment over time. This adaptation is conducive maintaining bioeffectiveness alleviating limitation.

Язык: Английский

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Characterization of Microbial Carbon Metabolism in Karst Soils from Citrus Orchards and Analysis of Its Environmental Drivers

Microorganisms, Год журнала: 2025, Номер 13(2), С. 267 - 267

Опубликована: Янв. 25, 2025

Karst regions (KRs) have created significant karst carbon sinks globally through the cycling process involving “water-carbon dioxide-carbonate rock-biota”. Soil organic (SOC) represents a crucial component of these sinks. Microorganisms play vital role in soil cycle, influencing formation and preservation SOC. Therefore, investigating metabolism microorganisms KRs is essential for clarifying unique biogeochemical mechanisms within regions. In this paper, soils from (KRs), mixed (MRs) non-karst (NKRs) were collected citrus orchards Mao Village, Experimental Field, Guilin City, Guangxi Zhuang Autonomous Region, China. The ability to use different sources was analyzed by Biolog-Eco microtiter plate technique; number detected colony counting method, microbial biomass determined chloroform fumigation method. results showed that bacterial (5.69 ± 0.39 × 106 CFU/g), (MBC) (608.24 63.80 mg/kg), quotient (SMQ) (3.45 0.18%), Shannon’s index (H′) (3.28 0.05) KR significantly higher than those NKR. pH positive correlation (p < with H′ 0.05); SOC highly 0.01), MBC, H′, average well change development (AWCD) 0.05). Total nitrogen (TN) MBC available potassium (AK) Exchangeable calcium (Ca2+) demonstrated correlations number, above indicate metabolic diversity highest KR. pH, exchangeable Ca2+ main factors differentiation between

Язык: Английский

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Bacterial and Fungal Communities Respond Differently to Changing Soil Properties Along Afforestation Dynamic

Microbial Ecology, Год журнала: 2025, Номер 88(1)

Опубликована: Фев. 6, 2025

Abstract Spontaneous afforestation following land abandonment has been increasingly recognized as a nature-based solution to mitigate climate change and provide measurable benefits biodiversity. However, effects on biodiversity, particularly soil microbial communities, are still poorly characterized, with most previous studies focusing artificial plantations rather than forest rewilding dynamics. Here, we assessed changes in topsoil physical–chemical properties related dynamics of bacterial fungal community composition structure spontaneous abandoned grasslands Northeast Italy over the last 70 years. With space-for-time approach, selected four chronosequences representing different successional stages: grassland, early (2000–2020), intermediate (1978–2000), late (1954–1978). Results showed that progressively reduced pH total phosphorus (P), while organic carbon (SOC), nitrogen (N), C:N ratio increased. Correspondingly, overall α-diversity community, by ITS DNA metabarcoding, decreased after an initial increase from grassland conditions, substrate acidification trophic specialization. Bacterial diversity, 16S was highest at stages, then later likely limited lower matter quality. Shifts included ectomycorrhizal Basidiomycota linked topsoil’s higher SOC, N, ratio. Differently, responded substantially pH, acidity favoring Proteobacteria (Pseudomonadota) Acidobacteria (Acidobacteriota) stages. Our findings first contribution clarify how fungi bacteria respond afforestation. This is relevant context mitigation, considering fundamental role microorganisms shaping storage

Язык: Английский

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