Nitrogen fertilization weakens the linkage between soil carbon and microbial diversity: A global meta‐analysis

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(21), P. 6446 - 6461

Published: July 29, 2022

Abstract Soil microbes make up a significant portion of the genetic diversity and play critical role in belowground carbon (C) cycling terrestrial ecosystems. microbial organic C are often tightly coupled processes; however, this coupling can be weakened or broken by rapid global change. A meta‐analysis was performed with 1148 paired comparisons extracted from 229 articles published between January 1998 December 2021 to determine how nitrogen (N) fertilization affects relationship soil content We found that N decreased bacterial (−11%) fungal (−17%), but increased (SOC) (+19%), biomass (MBC) (+17%), dissolved (DOC) (+25%) across different Organic (urea) had greater effect on SOC, MBC, DOC, than inorganic fertilization. Most importantly, increasing absolute values correlation coefficients rate duration, suggesting linkage diversity. The might negatively impact essential ecosystem services under high rates fertilization; understanding is important for mitigating negative enrichment cycling.

Language: Английский

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Cadmium inhibits carbon and nitrogen cycling through soil microbial biomass and reduces soil nitrogen availability

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137524 - 137524

Published: Feb. 7, 2025

Language: Английский

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Integrative knowledge-based nitrogen management practices can provide positive effects on ecosystem nitrogen retention

Nature Food, Journal Year: 2023, Volume and Issue: 4(12), P. 1075 - 1089

Published: Dec. 5, 2023

Language: Английский

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Global arbuscular mycorrhizal fungal diversity and abundance decreases with soil available phosphorus

Global Ecology and Biogeography, Journal Year: 2023, Volume and Issue: 32(8), P. 1423 - 1434

Published: June 1, 2023

Abstract Aim Arbuscular mycorrhizal fungi (AMF) are widely distributed soil organisms that play critical roles in ecosystem functions. However, little is known about their global distribution and the underlying mechanisms. Here, we aimed to explore pattern key predictors of AMF diversity abundance at scale. Location Global. Time Period 1987–2022. Major Taxa Studied fungi. Methods We investigated scale by compiling 654 field studies. Results found cold climate zones had relatively low diversity. At level, grassland tended have higher abundance. Soil available phosphorus (P) latitude were most important richness Shannon index decreased with increasing P latitude. pH main for colonization rate spore declined increased pH. Mean annual precipitation was also an important, positive correlate Main Conclusions Our findings highlight as predictor affecting abundance, advancing our understanding mechanisms patterns fungal

Language: Английский

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Fertilizer N triggers native soil N-derived N2O emissions by priming gross N mineralization

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 178, P. 108961 - 108961

Published: Jan. 19, 2023

Language: Английский

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Global soil nitrogen cycle pattern and nitrogen enrichment effects: Tropical versus subtropical forests

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(7), P. 1905 - 1921

Published: Jan. 20, 2023

Abstract Tropical and subtropical forest biomes are a main hotspot for the global nitrogen (N) cycle. Yet, our understanding of soil N cycle patterns drivers their response to deposition in these remains elusive. By meta‐analysis 2426‐single 161‐paired observations from 89 published 15 pool dilution tracing studies, we found that gross mineralization (GNM), immobilization ammonium () nitrate (), dissimilatory reduction (DNRA) were significantly higher tropical forests than forests. Soil was conservative with ratios nitrification (GN) (GN/) (NO 3 − /NH 4 + ) less one, but leaky GN/ NO one. NH dynamics mainly controlled by substrate (e.g., total N), climatic factors precipitation and/or temperature) more important controlling dynamics. texture played role, as GNM positively correlated silt clay contents, while DNRA sand respectively. The sensitive Nitrogen leads forests, evidenced increase GN/, , nitrous oxide emissions decrease DNRA, due microbial biomass pH. Dominant tree species can also influence pattern, which has changed deciduous coniferous We provide evidence tropical, not subtropical, characterized sustaining availability inhibits retention stimulates losses biomes.

Language: Английский

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Soil recalcitrant but not labile organic nitrogen mineralization contributes to microbial nitrogen immobilization and plant nitrogen uptake

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(4)

Published: April 1, 2024

Soil organic nitrogen (N) mineralization not only supports ecosystem productivity but also weakens carbon and N accumulation in soils. Recalcitrant (mainly mineral-associated matter) labile particulate materials differ dramatically nature. Yet, the patterns drivers of recalcitrant (M

Language: Английский

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Extreme precipitation alters soil nitrogen cycling related microbial community in karst abandoned farmland

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 197, P. 105345 - 105345

Published: Feb. 26, 2024

Language: Английский

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Unveiling ammonium concentration ranges that determine competition for mineral nitrogen among soil nitrogen transformations under increased carbon availability

Soil Biology and Biochemistry, Journal Year: 2024, Volume and Issue: 196, P. 109495 - 109495

Published: June 6, 2024

Language: Английский

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Nitrogen additions increase soil microbial nitrate- rather than ammonium- immobilization

Biology and Fertility of Soils, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Language: Английский

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