CATENA, Journal Year: 2024, Volume and Issue: 246, P. 108400 - 108400
Published: Sept. 17, 2024
Language: Английский
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: July 28, 2024
Soil dissolved organic matter (DOM) is crucial to atmospheric, terrestrial and aquatic environments as well human life. Here, by characterizing DOM from 89 grassland soils throughout China, we reveal the spatial association between geochemistry in dry season vs annual ecosystem exchange cancer cases. The humic-like high molecular weight (3.4–25 kDa) fractions with lower biodegradability, decline northern southern regions of are correlated soil respiration net productivity at continental scale. <1.2 kDa proteinaceous could serve a geographical indicator nasopharyngeal incidence mortality, while 3.4–25 humified potentially associated pancreatic cases (P < 0.05). Our findings highlight that exploiting environmental functions mitigating negative impacts necessary, require actions tailored local conditions. critical processes humans. Here authors variations different playing varied roles carbon health.
Language: Английский
Citations
17
BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)
Published: Jan. 25, 2025
Language: Английский
Citations
1
Agriculture Ecosystems & Environment, Journal Year: 2025, Volume and Issue: 383, P. 109508 - 109508
Published: Feb. 2, 2025
Language: Английский
Citations
1
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: Nov. 22, 2023
Carbon sequestration in grasslands has been proposed as an important means to offset greenhouse gas emissions from ruminant systems. To understand the potential and limitations of this strategy, we need acknowledge that soil carbon is a time-limited benefit, there are intrinsic differences between short- long-lived gases. Here, our analysis shows one tonne sequestrated can radiative forcing continuous emission 0.99 kg methane or 0.1 nitrous oxide per year over 100 years. About 135 gigatonnes required sector worldwide, nearly twice current global stock managed grasslands. For various regions, grassland stocks would increase by approximately 25% - 2,000%, indicating solely relying on warming effect systems not feasible.
Language: Английский
Citations
18
Global Change Biology, Journal Year: 2023, Volume and Issue: 29(16), P. 4686 - 4696
Published: May 28, 2023
Abstract Climate‐induced changes in snow cover can greatly impact winter soil microclimate and spring water supply. These effects, turn, influence plant microbial activity the strength of leaching processes, potentially altering distribution storage organic carbon (SOC) across different depths. However, few studies have examined how will affect SOC stocks, even less is known about on dynamics along profiles. By selecting 11 fences a 570 km climate gradient Inner Mongolia, covering arid, temperate, meadow steppes, we measured biomass, community composition, content, other parameters from topsoil to depth 60 cm. We found that deepened increased aboveground belowground as well biomass. Plant input were positively correlated with grassland stocks. More importantly, altered vertical The increase caused by was much greater subsoil (+74.7%; 40–60 cm) than (+19.0%; 0–5 cm). Additionally, controls content under differed between layers. root biomass jointly enhanced C accumulation, while processes became critical promoting accumulation. conclude snow, had high capacity sink incorporating leached topsoil, suggesting subsoil, originally thought be insensitive, could higher response precipitation due transport. Our study highlights importance considering when assessing impacts dynamics.
Language: Английский
Citations
17
Agricultural and Forest Meteorology, Journal Year: 2023, Volume and Issue: 342, P. 109719 - 109719
Published: Sept. 23, 2023
Language: Английский
Citations
17
The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 933, P. 173155 - 173155
Published: May 11, 2024
Language: Английский
Citations
7
Global Change Biology, Journal Year: 2024, Volume and Issue: 30(12)
Published: Dec. 1, 2024
ABSTRACT Microbial carbon (C) use efficiency (CUE) describes the proportion of organic C used by microorganisms for anabolic processes, which increases with soil (SOC) content on a global scale. However, it is unclear whether similar relationship exists during natural vegetation restoration in terrestrial ecosystems. Here, we investigated patterns CUE along 160‐year chronosequence (from farmland to climax forest) estimated stoichiometric modeling; additionally, examined between and SOC combined these results meta‐analysis. The combination indicated that decreased from 0.35 0.28. Surprisingly, increased decreasing because forest soils have low pH values high microbial phosphorus limitations compared early ecosystems, implying forests may not sequester as much expected. shift was most important predictor climate, plant, factors. changes were directly induced pH‐induced community. Alkaline acidification tended decrease CUE. This first large‐scale estimate highlights need strengthen sink management mature sustain their sequestration potential.
Language: Английский
Citations
7
Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15
Published: March 19, 2024
Grazing exclusion (GE) is considered an effective strategy for restoring the degradation of overgrazed grasslands on global scale. Soil microbial diversity plays a crucial role in supporting multiple ecosystem functions (multifunctionality) grassland ecosystems. However, impact grazing soil remains uncertain. Here, we conducted meta-analysis using dataset comprising 246 paired observations from 46 peer-reviewed papers to estimate how GE affects and these effects vary with climatic regions, types, duration ranging 1 64 years. Meanwhile, explored relationship between its functionality under exclusion. Overall, significantly increased Shannon (1.9%) richness (4.9%) compared group. For groups, fungal (8.6%) bacterial (5.3%), but decreased specific (-11.9%). The responses varied among duration. Specifically, arid, semi-arid, dry sub-humid it humid regions. Moreover, semidesert (5.9%) alpine (3.0%), not temperate grasslands. Long-term (>20 year) had greater (8.0% 6.7% richness) short-term (<10 (-0.8% 2.4%). Furthermore, multifunctionality, both plant positively correlated multifunctionality. our findings emphasize importance considering climate, duration, type biodiversity conservation sustainable functions.
Language: Английский
Citations
6
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 905, P. 166921 - 166921
Published: Sept. 12, 2023
Future global climate changes are expected to increase soil organic carbon (SOC) decomposition. However, the combined effect of C inputs, land use changes, and on SOC turnover is still unclear. Exploring this SOC-climate-land interaction allows us understand stabilization mechanisms examine whether can act as a source or sink for CO2. The current study estimates sequestration potential in topsoil layer Danish agricultural lands by 2038, considering change future scenarios using Rothamsted Carbon (RothC) model. Additionally, we quantified loss vulnerability existing projected based capacity stabilize OC. We used quantile random forest model estimate initial stock 2018, simulated with RothC business-as-usual (BAU) scenario crop rotation (LUC) under conditions 2038. compared stocks saturation deficit. ranged from 10 181 Mg ha-1 different parts country. projections showed 8.1 BAU 6 after LUC adoption. This was strongly influenced warmer temperatures clay content. proposed became mitigation measure against negative accumulation, especially sandy soils high livestock density. A accumulation C-saturated suggests an non-complexed SOC, which vulnerable being lost into atmosphere With these results, provide information prioritize areas where management practices be adopted enhance stable forms preserve labile-existing stocks.
Language: Английский
Citations
11