The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 820, P. 153257 - 153257
Published: Jan. 20, 2022
Language: Английский
Agriculture Ecosystems & Environment, Journal Year: 2021, Volume and Issue: 326, P. 107795 - 107795
Published: Nov. 27, 2021
Language: Английский
Citations
67
Communications Earth & Environment, Journal Year: 2021, Volume and Issue: 2(1)
Published: Dec. 9, 2021
Abstract The response of soil carbon release to global warming is largely determined by the temperature sensitivity respiration, yet how this relationship will be affected increasing atmospheric nitrogen deposition unclear. Here, we present a synthesis 686 observations from 168 field studies investigate between enrichment and respiration. We find that total heterotrophic respiration increased with latitude. In addition, for autotrophic responded more strongly Temperature precipitation during Last Glacial Maximum were better predictors responds than contemporary climate variables. tentative legacy effects paleoclimate variables regulate through shaping organic content. suggest careful consideration past conditions necessary when projecting dynamics under future change.
Language: Английский
Citations
64
Ecotoxicology and Environmental Safety, Journal Year: 2022, Volume and Issue: 230, P. 113150 - 113150
Published: Jan. 1, 2022
Contamination of microplastics (MPs) is a global environmental issue that has received much attention from the scientific and public communities due to ecological concerns in recent decades. Comparing with aquatic ecosystems, soil systems, regardless high importance complexity, have been less studied under widely existing increasing MP contamination. This review, combined data assimilation meta-analysis methods, summarized current contamination conditions MPs across different sites reported earlier studies. While performing this meta-analysis, we investigated effects on biota including their numbers, biomass, diversity, physiological properties. The results showed abundance ranged 0.34 410958.9 items kg-1 concentration 0.002 67500 mg sites, agricultural soils containing significantly lower than others. Presence decreased individual number biota, operational taxonomic unit, diversity index (Simpson), movement reproduction rate, whereas mortality rate was increased by MPs. Despite these significant effects, did not alter biomass which could be counteraction negative positive groups organisms. Moreover, observed increase Chao1 index, suggesting may act as food resource for rare biosphere. Based knowledge, suggest future studies should focus research areas include but are limited methodological improvements, intensive field investigations, risk assessment perspective web bioaccumulation, induced antibiotic resistance, restoration strategies reduce concentrations soil.
Language: Английский
Citations
56
The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 838, P. 156148 - 156148
Published: May 21, 2022
Language: Английский
Citations
44
Nature Ecology & Evolution, Journal Year: 2023, Volume and Issue: 7(2), P. 205 - 213
Published: Jan. 12, 2023
Language: Английский
Citations
30
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 881, P. 163375 - 163375
Published: April 10, 2023
Language: Английский
Citations
24
Fundamental Research, Journal Year: 2023, Volume and Issue: 3(6), P. 868 - 879
Published: March 20, 2023
Salinity stress is one of the critical environmental drivers soil organic matter (SOM) decomposition in coastal ecosystems. Although temperature sensitivity (Q10) SOM has been widely applied Earth system models to forecast carbon processes, impact salinity on by restructuring microbial communities remains uncovered. Here, we conducted a microcosm experiment with soils collected from salt marsh Yellow River Estuary, which subjected strong dynamics due both tidal flooding and drainage. By setting gradient solutions, was adjusted simulate emission (CO2) rate measured over period. Results showed that as increased, estimated constants based first-order kinetics gradually decreased at different temperatures. Below 20‰ treatments, doubled salinity, Q10 increased increasing salinity; but higher constrained temperature-related response inhibiting growth metabolisms. Soil bacteria were more sensitive than fungi, can be inferred beta-diversity changing salinity. Among them, phylotypes assigned Gammaproteobacteria Bacilli tolerance, whereas taxa affiliated Alphaproteobacteria Bacteroidota easily inhibited stress. Several fungal belonging Ascomycota had adaptability As substrate consumed incubation, bacterial competition intensified, co-occurrence pattern changed weakly during decomposition. Collectively, these findings revealed threshold effect marshes emphasized plays key role sequestration regulating keystone taxa, metabolisms, interactions.
Language: Английский
Citations
23
Environment International, Journal Year: 2024, Volume and Issue: 183, P. 108429 - 108429
Published: Jan. 1, 2024
An increasing number of anthropogenic pressures can have negative effects on biodiversity and ecosystem functioning. However, our understanding how soil microbial communities functions in response to multiple global change factors (GCFs) is still incomplete, particularly less frequently disturbed subsoils. In this study, we examined the impact different levels GCFs (0-9) bacterial both topsoils (0-20 cm) subsoils (20-40 an agricultural ecosystem, characterized intrinsic influencing community resistance based life history strategy. Our experimental results showed a decline multifunctionality, diversity, as increased, with more drastic reduction Specifically, observed significantly positive relationship between oligotroph/copiotroph ratio subsoils, which was also verified by correlation 16S rRNA operon (rrn) copy resistance. Structural equation modeling further revealed direct promoting functioning, regardless top- Therefore, these suggested that may recruit oligotrophic microbes enhance their originally weaker under GCFs, essential for maintaining sustainable agroecological services. Overall, study represents significant advance linking strategy belowground functionality.
Language: Английский
Citations
14
Geoderma, Journal Year: 2024, Volume and Issue: 445, P. 116883 - 116883
Published: April 23, 2024
Soil microorganisms play a key role in regulating soil organic carbon (SOC) accrual. Organic amendments with distinct stoichiometry may lead to imbalanced supply of (C), nitrogen (N), and phosphorus (P) the microbiome, causing changes microbial community composition their life strategies, as well enzyme production. However, response these imbalances whether adaptive strategies are related fate SOC pools remain largely unknown low-fertility paddy soil. To address this uncertainty, soils were sampled from 12-year experimental fertilisation trial under integrated application mineral fertilizers three types materials (green manure, rice straw, cattle manure). Stoichiometric between microbes available resources, activities, composition, linkages particulate (POC) mineral-associated (MAOC) C investigated. The results showed that despite equal input, strongest increase MAOC occurred smallest C:N imbalance C:P imbalance, suggesting alleviation N P limitation was inductive accrual stable fraction. Additional lower C: nutrient ratios shifted towards prevalence r-strategists, manure addition supporting copiotrophic bacteria green favouring fungi. Importantly, relative abundances Proteobacteria, Gemmatimonadetes, Actinobacteria belonging copiotrophs negatively but positively POC MAOC, while Chloroflexi, Basidiomycota Glomeromycota oligotrophs exhibited reversed relationships. In addition, greater associated an biomass decrease biomass-specific P-acquiring activity. Random forest analysis partial least squares path model revealed played important indirect shaping by concurrently biomass, production, whereas pool predominantly directly controlled proportion macroaggregates. These provide empirical evidence for stoichiometric control communities feedback pools, highlighting low C:nutrient ratio long-term storage persistence intensively managed soils.
Language: Английский
Citations
13
Global Change Biology, Journal Year: 2024, Volume and Issue: 30(2)
Published: Jan. 30, 2024
Abstract Organic carbon decomposition in lake sediments contributes substantially to the global cycle and is strongly affected by temperature. However, magnitude of temperature sensitivity ( Q 10 ) underlying factors remain unclear at continental scale. Carbon quality (CQT) hypothesis asserts that less reactive more recalcitrant molecules tend have higher sensitivities, but its support challenged complex composition organic matter environmental constraints. Here, we quantified across 50 freshwater ecosystems along a 3500 km north–south transect, characterized sediment dissolved with chemodiversity reflected molecular richness, functional traits (i.e., weight, bioavailability, etc.) composition. We further included classic variables, such as climatic, physicochemical microbial factors, explore how constrained these or quality. found varied greatly lakes, mean value 1.78 ± 0.62, showed nonsignificant latitudinal pattern. was primarily predicted an increasing trend biochemical recalcitrance indicated aromaticity standard Gibb's Free Energy both compositional levels. This suggests crucial determinant supporting CQT hypothesis. Moreover, decreased linearly increase implying resistance warming associated diversity. Compared structural equation model containing only inclusion increased 32.8% explained variation , driver showing direct effects. Collectively, this study illustrates importance shaping pattern has significant implications for accurately predicting turnover context warming.
Language: Английский
Citations
11