Impacts of nutrient addition on soil carbon and nitrogen stoichiometry and stability in globally-distributed grasslands DOI
Katherine S. Rocci, Kaydee S. Barker, Eric W. Seabloom

et al.

Biogeochemistry, Journal Year: 2022, Volume and Issue: 159(3), P. 353 - 370

Published: May 15, 2022

Language: Английский

Globally nitrogen addition alters soil microbial community structure, but has minor effects on soil microbial diversity and richness DOI
Xudong Wang, Jiguang Feng, Gukailin Ao

et al.

Soil Biology and Biochemistry, Journal Year: 2023, Volume and Issue: 179, P. 108982 - 108982

Published: Feb. 14, 2023

Language: Английский

Citations

144
Nitrogen increases soil organic carbon accrual and alters its functionality DOI Creative Commons
Bo Tang, Katherine S. Rocci, Anika Lehmann

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(7), P. 1971 - 1983

Published: Jan. 6, 2023

Abstract Nitrogen (N) availability has been considered as a critical factor for the cycling and storage of soil organic carbon (SOC), but effects N enrichment on SOC pool appear highly variable. Given complex nature pool, recent frameworks suggest that separating this into different functional components, example, particulate (POC) mineral‐associated (MAOC), is great importance understanding predicting dynamics. Importantly, little known about how these N‐induced changes in components (e.g., ratios among fractions) would affect functionality given differences nutrient density, resistance to disturbance, turnover time between POC MAOC pool. Here, we conducted global meta‐analysis 803 paired observations from 98 published studies assess effect addition fractions. We found addition, average, significantly increased pools by 16.4% 3.7%, respectively. In contrast, both were remarkably decreased (4.1% 10.1%, respectively). Increases positively correlated with aboveground plant biomass hydrolytic enzymes. However, positive responses increases microbial biomass. Our results although reactive deposition could facilitate C sequestration some extent, it might decrease time, disturbance study provides mechanistic insights its at scale, which pivotal dynamics especially future scenarios more frequent severe perturbations.

Language: Английский

Citations

114
The positive effect of plant diversity on soil carbon depends on climate DOI Creative Commons
Marie Spohn, Sumanta Bagchi, Lori Biederman

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 19, 2023

Abstract Little is currently known about how climate modulates the relationship between plant diversity and soil organic carbon mechanisms involved. Yet, this knowledge of crucial importance in times change biodiversity loss. Here, we show that positively correlated with content carbon-to-nitrogen ratio across 84 grasslands on six continents span wide gradients. The relationships as well matter quality (carbon-to-nitrogen ratio) are particularly strong warm arid climates. While biomass carbon, not significantly diversity. Our results indicate influences storage via quantity (plant biomass) inputs to soil, but through matter. study implies ecosystem management restores likely enhances sequestration,

Language: Английский

Citations

79
Distinct, direct and climate‐mediated environmental controls on global particulate and mineral‐associated organic carbon storage DOI
Paige M. Hansen, Rebecca Even, Alison E. King

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 30(1)

Published: Dec. 25, 2023

Abstract Identifying controls on soil organic carbon (SOC) storage, and where SOC is most vulnerable to loss, are essential managing soils for both climate change mitigation global food security. However, we currently lack a comprehensive understanding of the drivers especially with regards particulate (POC) mineral‐associated (MAOC). To better understand hierarchical POC MAOC, applied path analyses fractions, (i.e., mean annual temperature [MAT] precipitation minus potential evapotranspiration [MAP‐PET]), (C) input net primary production [NPP]), property data synthesized from 72 published studies, along generated National Ecological Observatory Network pits ( n = 901 total observations). assess utility investigating MAOC separately in storage controls, then compared these results another analysis predicting bulk storage. We found that negatively related MAT pH, while positively NPP MAP‐PET, but % sand. Our revealed similar trends explained less variation C than our analyses. Given pH impose constraints microbial decomposition, this indicates primarily controlled by loss processes. In contrast, strong relationships variables plant productivity constraints, moisture, mineral surface availability sorption indicate climate‐driven variations inputs soil, as well stabilization mechanisms. Altogether, demonstrate separate environmental variables, further justifying need quantify model fractions forecast responses change.

Language: Английский

Citations

45
Spatiotemporal evolution of agricultural drought and its attribution under different climate zones and vegetation types in the Yellow River Basin of China DOI
Yu‐Jie Ding, Lifeng Zhang, Yi He

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169687 - 169687

Published: Jan. 9, 2024

Language: Английский

Citations

30
Nitrogen deposition and climate: an integrated synthesis DOI Creative Commons
Elizabeth T. Borer, Carly J. Stevens

Trends in Ecology & Evolution, Journal Year: 2022, Volume and Issue: 37(6), P. 541 - 552

Published: April 12, 2022

Language: Английский

Citations

52
Ecosystem‐dependent responses of soil carbon storage to phosphorus enrichment DOI
Jiguang Feng, Yanjun Song, Biao Zhu

et al.

New Phytologist, Journal Year: 2023, Volume and Issue: 238(6), P. 2363 - 2374

Published: March 24, 2023

Phosphorus deposition can stimulate both plant carbon inputs and microbial outputs. However, how P enrichment affects soil organic (SOC) storage the underlying mechanisms remain unclear. We conducted a meta-analysis of 642 SOC observations from 213 field addition experiments world-wide explored regulations inputs, outputs, characteristics, environmental experimental factors on responses. found that, globally, stimulated by 4.0% (95% CI: 2.0-6.0%), but stimulation only occurred in forest cropland rather than grassland. Across sites, response correlated with that aboveground belowground biomass, suggesting change was more important regulating changes due to addition. Among multiple factors, N fixation status mean annual temperature were best predictors for responses addition, being higher ecosystems dominated symbiotic nitrogen fixers high-temperature regions like tropical forests. Our findings highlight differential ecosystem-dependent contribute accurate predictions dynamics P-enriched world.

Language: Английский

Citations

42
A pathway analysis method for quantifying the contributions of precipitation and potential evapotranspiration anomalies to soil moisture drought DOI
Chengyun Wang, Jie Chen, Lei Gu

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 621, P. 129570 - 129570

Published: April 25, 2023

Language: Английский

Citations

32
Nitrogen addition increased soil particulate organic carbon via plant carbon input whereas reduced mineral−associated organic carbon through attenuating mineral protection in agroecosystem DOI
Tao Sun,

Xiali Mao,

Kefeng Han

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 899, P. 165705 - 165705

Published: July 22, 2023

Language: Английский

Citations

25
Context dependencies in the responses of plant biomass and surface soil organic carbon content to nitrogen addition and precipitation change within alpine grasslands DOI
Fawei Zhang,

Hongqin Li,

Jingbin Zhu

et al.

Agriculture Ecosystems & Environment, Journal Year: 2025, Volume and Issue: 381, P. 109475 - 109475

Published: Jan. 10, 2025

Language: Английский

Citations

1