Global warming changes biomass and C:N:P stoichiometry of different components in terrestrial ecosystems

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(24), P. 7102 - 7116

Published: Oct. 14, 2023

Abstract Global warming has significantly affected terrestrial ecosystems. Biomass and C:N:P stoichiometry of plants soil is crucial for enhancing plant productivity, improving human nutrition, regulating biogeochemical cycles. However, the effect on biomass different components (plant, leaf, stem, root, litter, soil, microbial biomass) in various ecosystems remains uncertain. We conducted a comprehensive meta‐analysis to investigate global patterns responses warming, as well interaction relationships based 1399 paired observations from 105 studies. Results indicated that had significant impact aspects growth, including an increase (+16.55%), C:N ratio (+4.15%), leaf (+16.78%), stem (+23.65%), root (+22.00%), litter (+9.54%) (+5.64%). it also decreased C:P (−23.34%), (−12.88%), N:P (−14.43%) (−16.33%). The magnitude was primary drivers changes stoichiometry. By establishing general response curves ratios with increasing temperature, we demonstrated plant, shifted negative positive, whereas changed positive temperature increased. Additionally, ratio, biomass, negative, effects N:P, C:P, ratios, temperature. Our research can help assess productivity optimize ecosystem precisely context warming.

Language: Английский

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The effects of different factors on soil water infiltration properties in High Mountain Asia: A meta-analysis

CATENA, Journal Year: 2023, Volume and Issue: 234, P. 107583 - 107583

Published: Oct. 11, 2023

Language: Английский

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Climate Warming-Driven Changes in the Molecular Composition of Soil Dissolved Organic Matter Across Depth: A Case Study on the Tibetan Plateau

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(44), P. 16884 - 16894

Published: Oct. 19, 2023

Dissolved organic matter (DOM) is critical for soil carbon sequestration in terrestrial ecosystems. DOM molecular composition varies with depth. However, the spatial heterogeneity of depth-dependent response to climate warming remains unclear, especially alpine In this study, meadow samples was characterized comprehensively by using spectroscopy and mass spectrometry, open-top chambers (OTCs) were employed simulate warming. It found that had greatest impact on upper layer (0–30 cm), followed lower (60–80 while middle (30–60 cm) most stable among three layers. The reasons obvious changes layers further explained based biotic abiotic factors. Specifically, nutrients (NH4+–N, NO3––N, TC, TP) affected L1 (0–15 pH L5 cm). Gemmatimonadetes, Proteobacteria, Actinobacteria played important roles dominant fungal groups affecting increased under summary, research has contributed a deeper understanding

Language: Английский

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Influence of organic matter input and temperature change on soil aggregate-associated respiration and microbial carbon use efficiency in alpine agricultural soils

Soil Ecology Letters, Journal Year: 2024, Volume and Issue: 6(3)

Published: Jan. 19, 2024

Language: Английский

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Soil organic carbon becomes newer under warming at a permafrost site on the Tibetan Plateau

Soil Biology and Biochemistry, Journal Year: 2020, Volume and Issue: 152, P. 108074 - 108074

Published: Nov. 19, 2020

Language: Английский

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