Response of C:N:P stoichiometry to long-term drainage of peatlands: Evidence from plant, soil, and enzyme

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 919, P. 170688 - 170688

Published: Feb. 4, 2024

Language: Английский

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Impact of combined organic amendments and chemical fertilizers on soil microbial limitations, soil quality, and soybean yield

Plant and Soil, Journal Year: 2024, Volume and Issue: unknown

Published: May 17, 2024

Language: Английский

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The spatial variations and driving factors of C, N, P stoichiometric characteristics of plant and soil in the terrestrial ecosystem

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 175543 - 175543

Published: Aug. 15, 2024

Language: Английский

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Environment and microbiome drive different microbial traits and functions in the macroscale soil organic carbon cycle

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(8)

Published: Aug. 1, 2024

Soil microbial traits and functions play a central role in soil organic carbon (SOC) dynamics. However, at the macroscale (regional to global) it is still unresolved whether (i) specific environmental attributes (e.g., climate, geology, types) or (ii) community composition drive key directly. To address this knowledge gap, we used 33 grassland topsoils (0-10 cm) from geoclimatic gradient Chile. First, incubated soils for 1 week favorable standardized conditions quantified wide range of such as biomass (MBC), enzyme kinetics, respiration, growth rates well use efficiency (CUE). Second, characterized climatic physicochemical properties bacterial fungal soils. We then applied regression analysis investigate how strongly measured were linked with setting versus composition. show that (predominantly amount matter) determined patterns MBC along gradient, which turn explained respiration rates. normalized (i.e., growth) more than attributes. Notably, both followed distinct trends related different parts community, resulted strong effects on CUE. conclude even macroscale, CUE result physiologically decoupled aspects metabolism, partially by The affect functions, therefore factors need be considered context SOC

Language: Английский

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Effects of land reclamation on soil organic carbon and its components in reclaimed coal mining subsidence areas

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168523 - 168523

Published: Nov. 13, 2023

Language: Английский

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A meta‐analysis reveals increases in soil organic carbon following the restoration and recovery of croplands in Southwest China

Ecological Applications, Journal Year: 2024, Volume and Issue: 34(3)

Published: Feb. 21, 2024

Abstract In China, the Grain for Green Program (GGP) is an ambitious project to convert croplands into natural vegetation, but exactly how changes in vegetation translate soil organic carbon remains less clear. Here we conducted a meta‐analysis using 734 observations explore effects of land recovery on and nutrients four provinces Southwest China. Following GGP, content (SOCc) stock (SOCs) increased by 33.73% 22.39%, respectively, compared with surrounding croplands. Similarly, nitrogen increased, while phosphorus decreased. Outcomes were heterogeneous, depended variations environmental characteristics. Both regional use cover change indicated landscape type transfer matrix net primary production from 2000 2020 further confirmed that GGP promoted forest area mean production. Our findings suggest could enhance sequestration China help develop carbon‐neutral strategy.

Language: Английский

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Microbial and enzymatic C:N:P stoichiometry are affected by soil C:N in the forest ecosystems in southwestern China

Geoderma, Journal Year: 2024, Volume and Issue: 443, P. 116819 - 116819

Published: Feb. 21, 2024

Microbial and enzymatic stoichiometry have been widely used to reflect microbial nutrient limitations. However, the dominant drivers of C:N:P ratios are not well known, which hinders our understanding whether can accurately resource limitation. Here, we studied vertical patterns (0–100 cm) factors influencing in five forest ecosystems (one tropical, two subtropical, temperate) southwestern China. Our results showed that C:P were regulated by soil C:P, while N: P followed same pattern. This suggests status is weakly related may be inadequate disentangle nutritional Soil C:N affected likely altering community structure all horizons. Overall, study highlighted important role regulating C, N, cycles, challenged current methods for modeling

Language: Английский

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Impact of Winter Cover Crops on Total and Microbial Carbon and Nitrogen in Black Soil

Agronomy, Journal Year: 2024, Volume and Issue: 14(3), P. 603 - 603

Published: March 17, 2024

Winter cover crops have been shown to promote the accumulation of microbial biomass carbon and nitrogen, enhance nutrient cycling, reduce erosion, improve ecosystem stability, etc. In black soil area Northeast China, Triticum aestivum L., Medicago sativa Vicia villosa Roth., L. mixed planting, Roth. winter fallow fields (CK) were selected investigate effects on total nitrogen nitrogen. The results showed that (1) after seasonal freeze-thaw, rate change in SOC (−2.49~6.50%), TN (−1.54~5.44%), C/N (−1.18~1.16%) was less than SMBC (−80.91~−58.33%), SMBN (−65.03~332.22%), SMBC/SMBN (−45.52~−90.03%); (2) not only alleviated negative which reduces qMBC, but also increased qMBN; (3) there an extremely significant (p < 0.01) positive correlation between TN, a 0.05) SMBN, no or SMBN; (4) alkali-hydrolysable had greatest impact while soil’s saturation degree (5) monoculture most effective conserving conclusion, can mitigate reduction caused by freeze-thaw increase content region best performance.

Language: Английский

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The influence of soil depth and tree age on soil enzyme activities and stoichiometry in apple orchards

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 202, P. 105600 - 105600

Published: Aug. 22, 2024

Language: Английский

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Diversified Vegetation Cover Alleviates Microbial Resource Limitations within Soil Aggregates in Tailings

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(42), P. 18744 - 18755

Published: Oct. 10, 2024

Resource demand by soil microorganisms critically influences microbial metabolism and then ecosystem resilience multifunctionality. The ecological remediation of abandoned tailings is a topic broad interest, yet our understanding metabolic status in restored soils, particularly at the aggregate scale, remains limited. This study investigated resources within aggregates from revegetated applied vector model ecoenzymatic stoichiometry to examine how different vegetation patterns (grassland, forest, or bare land control) impact resource limitation. Five-year restoration significantly elevated carbon (C) nitrogen (N) concentrations their stoichiometric ratios (approximately 2-fold), although these increases were not translated biomass its stoichiometry. activities C- phosphorus (P)-acquiring extracellular enzymes increased substantially postvegetation, with most pronounced escalation macroaggregates (>0.25 mm). results indicated was colimited C P, acutely microaggregates (<0.25 colimitation exacerbated monotypic cover but mitigated under diversified cover. Soil nutrient controlled limitation, overshadowing heavy metals. Our findings underscore that optimizing allocation through strategic revegetation can enhance tailings, which advocates for implementation diverse covers as viable strategy improve development degraded landscapes.

Language: Английский

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