Trees First Inhibit Then Promote Litter Decomposition in the Subarctic

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(1)

Published: Jan. 1, 2025

ABSTRACT Trees affect organic matter decomposition through allocation of recently fixed carbon belowground, but the magnitude and direction this effect may depend on substrate type stage. Here, we followed mass loss, chemical composition fungal colonisation leaf root litters incubated in mountain birch forests over 4 years, plots where belowground was severed by tree girdling or control plots. Initially, stimulated litter loss 12% 22%, respectively, suggesting competitive release saprotrophic when tree‐mediated competition ectomycorrhizal fungi eliminated (Gadgil effect). After instead hampered 30%, late‐stage priming presence trees, parallel with increased growth shrubs associated following elimination. Hence, different mechanisms driving early‐ should be considered climate‐feedback evaluations plant–soil interactions.

Language: Английский

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Fungal ecology at treelines

Fungal ecology, Journal Year: 2025, Volume and Issue: unknown, P. 101412 - 101412

Published: Jan. 1, 2025

Language: Английский

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The Effects of the Long-Term Application of Different Nitrogen Fertilizers on Brown Earth Fertility Indices and Fungal Communities

Soil Systems, Journal Year: 2024, Volume and Issue: 8(4), P. 121 - 121

Published: Nov. 21, 2024

Soil fungi play a crucial role in soil microbes, the composition and variety of whose communities can be altered due to nitrogen constraints, thereby affecting plant’s development. This study aimed investigate relationship between communities, fertility index, structure fungal under varying fertilizer conditions, using long-term positioning test on brown earth Northeast China. It examined impact 31 years applying no (CK, 0 kg N hm−2 a−1), single application inorganic (N2, urea 135 a−1; N4, 270 hm−2·a−1), organic (M4, pig housing mixed (M2N2, a−1 + a−1) index community earth. The findings indicated following: Long-term non-fertilization chemical reduced pH value increased bulk density. density slowed down reduction richness caused by application. different fertilizers did not alter dominant phylum, showing that phylum all treatments was Ascomycota. pH, matter, total phosphorus, available nitrogen, alkaline potassium were main factors structural diversity communities. Total phosphorus explained greatest differences

Language: Английский

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Soil biology: Fungi in plant roots — what do they all do down there?

Current Biology, Journal Year: 2024, Volume and Issue: 34(24), P. R1237 - R1240

Published: Dec. 1, 2024

Language: Английский

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