Comment on egusphere-2024-271 DOI Creative Commons
Julien Arsenault, Julie Talbot, Tim R. Moore

и другие.

Опубликована: Апрель 22, 2024

Abstract. Peatlands pools are unvegetated, inundated depressions that cover up to 30 % of the surface many temperate and boreal peatlands net carbon (C) sources within C-accumulating ecosystems. The emission dioxide (CO2) methane (CH4) from peatland comes degradation organic matter (OM) comprise surrounding matrix. It is, however, not clear how decomposition rates in pools, which define their function distinguish them other aquatic ecosystems, vary spatially what mechanisms drive these variations. We quantified OM fresh litter at different depths six distinct morphological characteristics a ombrotrophic using litterbags Sphagnum capillifolium Typha latifolia over 27-month period measured potential CO2 CH4 production pool sediments laboratory incubations. Rates were faster for T. than S. and, overall, decreased with increasing depth. Pool sediment chemistry was variable among drove sediments, decreasing humification nitrogen-to-phosphorus ratio. Both CO2 production higher 1 m deep but similar shallow < > 1.5 pools. Our results show is highly related chemistry, depends primarily on environmental conditions it occurs, differences both decomposability as O2 concentrations, light, temperature depth

Язык: Английский

Biomineralization To Prevent Microbially Induced Corrosion on Concrete for Sustainable Marine Infrastructure DOI Creative Commons
Xiaohao Sun, Onyx W. H. Wai, Jiawen Xie

и другие.

Environmental Science & Technology, Год журнала: 2023, Номер 58(1), С. 522 - 533

Опубликована: Дек. 5, 2023

Microbially induced corrosion (MIC) on concrete represents a serious issue impairing the lifespan of coastal/marine infrastructure. However, currently developed protection strategies have limitations in wide applications. Here, biomineralization method was proposed to form biomineralized film surfaces for inhibition. Laboratory seawater experiments were conducted under different conditions [e.g., chemical (CC), MIC, and inhibition]. A combination mechanical property measurements (e.g., sulfate concentrations, permeability, mass, strength) genotypic-based investigation formed biofilms evaluate effectiveness approach The results show that MIC resulted much higher rates than CC. treatment effectively inhibited because decreased total relative abundance sulfate-reducing bacteria (SRB) acted as protective layer control diffusion isolate from corrosive SRB communities, which helps extend structures. Moreover, this technique had no negative impact native marine microbial communities. Our study contributes potential application inhibition achieve long-term sustainability major

Язык: Английский

Процитировано

35

High pollution loads engineer oxygen dynamics, ecological niches, and pathogenicity shifts in freshwater environments DOI Creative Commons
Nuraddeen Bello Ahmad, Mohammed Sani Jaafaru, Zaharaddeen Isa

и другие.

Journal of Hazardous Materials Advances, Год журнала: 2024, Номер 14, С. 100425 - 100425

Опубликована: Март 28, 2024

The current study comprehensively reviews the ecological niche and pathogenicity shift in freshwater microbial community response to stress induced by a high pollution load. provides unique understanding of how change oxygen level tends affect survival aquatic biota delving into an increase pollutant load affects stability. review indicated that loads alter balance resources such as organic matter, dissolved gases, light penetration, essential nutrients. This causes dynamics species-dependent microorganisms environments. also alteration genome microorganisms, leading development antibiotic resistance genes thereby increasing microorganisms. dynamic created lowers natural defence strategies environment, efficacy pathogens infest respective host. A detailed mechanisms involved exotoxins production interaction with will give important insight effect exotoxin. is importance both environmental medical interests. because not only detrimental organisms but resists improperly treated drinking water. Such water could retrogress wellness quality life when used continuously. An extensive on specific pollutants cause microbiota provide impact stability environment.

Язык: Английский

Процитировано

9

Potential ecological impacts of physical control on Spartina alterniflora in coastal wetland: Migration and transformation of nutrients and the response of bacterial community structure DOI
Kang Wang, Sen Wang, Xin Zhang

и другие.

Journal of Cleaner Production, Год журнала: 2023, Номер 398, С. 136556 - 136556

Опубликована: Фев. 20, 2023

Язык: Английский

Процитировано

16

Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis DOI Creative Commons
Graciela Medina Madariaga, Verónica Ferreira, Roshni Arora

и другие.

Functional Ecology, Год журнала: 2024, Номер 38(7), С. 1523 - 1536

Опубликована: Май 9, 2024

Abstract Recent years have witnessed a surge in research on the effects of multiple stressors freshwater ecosystems. While studies increased, synthesis their findings into broader understanding ecosystem‐level remains an ongoing endeavour. Leaf litter decomposition, frequently investigated and pivotal ecosystem function freshwaters, is sensitive to changes abiotic conditions biotic communities, therefore susceptible multiple‐stressor effects. Here, we synthesize from 27 manipulative experimental encompassing 61 responses decomposition paired such as warming, nutrient enrichment emerging pollutants We calculated individual overall interaction effect sizes resulting two occurring simultaneously. Furthermore, analysed moderator variables size direction using meta‐analytical approach. Although vote‐counting method showed additive interactions dominate observations (91.8%), weighted random‐effects meta‐analysis revealed antagonistic between (i.e. cumulative was less than sum single effects). Our results emphasized influence characteristics macroinvertebrate involvement, habitat type (lentic vs. lotic) quality (assumed plant mycorrhizal association) shaping stressors. highlights need incorporate local ecological complexities experiments improve predictions biodiversity functions. The present study underscores importance considering adopting metacommunity framework conservation restoration actions support management ecosystems era rapid global change. Read free Plain Language Summary for this article Journal blog.

Язык: Английский

Процитировано

5

Phosphorus accumulation during the ice-on season in macrophyte-dominated eutrophic lakes and its implications DOI
Tingting Yang, Yingyuan Zhang, Tong Zhou

и другие.

Journal of Environmental Management, Год журнала: 2024, Номер 360, С. 121096 - 121096

Опубликована: Май 17, 2024

Язык: Английский

Процитировано

5

Combined Use of Biochar and Microbial Agents Can Promote Lignocellulosic Degradation Microbial Community Optimization during Composting of Submerged Plants DOI Creative Commons
Hongjie Wang,

Zhiwei Su,

Shengnan Ren

и другие.

Fermentation, Год журнала: 2024, Номер 10(1), С. 70 - 70

Опубликована: Янв. 21, 2024

Aerobic composting is one of the methods for resource utilization submerged plant residues. This study investigated effects biochar, wetland sediments and microbial agents added individually or combined on humification process, lignocellulose degradation communities during Ceratophyllum demersum Potamogeton wrightii composting. The results showed that addition sediment biochar was found to significantly elevate temperature compost products. average content lignin in and/or treatments 12.2–13.5%, which higher than control group (10.9–11.45%). Compared with organic matter (19.4%) total nitrogen concentration (35.3%) treated complex agent treatments, homemade increased values by 22.1% 41.0%, respectively. By comparing differences among different demonstrated greater increases activity diversity degradation-related microbes, especially Truepera Actinomarinale. Humus component were most critical parameters influencing changes bacterial community. Based these results, a combination promising additive an effective strategy, identified as potential compost.

Язык: Английский

Процитировано

4

Interactions between N, P in the overlying water and flooding-induced decomposition of Cynodon dactylon in the water-level fluctuation zone DOI Creative Commons

Jitao Huang,

Ze Luo,

Zuopeng Xu

и другие.

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Фев. 10, 2025

During flooding in the Water Level Fluctuation Zone (WLFZ), nutrient levels of nitrogen (N) and phosphorus (P) overlying water fluctuate due to soil release, impacting decomposition plants like Cynodon dactylon . However, limited research on effects these changes plant release dynamics complicates accurate assessments quality impacts. This study used 8 samples with varying initial simulate N P induced by WLFZ nutrients examined Results showed that significantly increased P, especially as particulate (PN) (PP), affecting both water. After 60 days, lost 47.97%-56.01% dry matter, 43.58%-54.48% total (TN), 14.28%-20.50% (TP). Initial PN dissolved (TDN) promoted matter loss, PP TP while TDN inhibited TN loss. By day 60, no positive correlation was found between plant-released or were negatively correlated TP, indicating an inhibitory effect. Further analysis indicates released from supported formation microbial aggregates, enhancing denitrification removal thus improving purification over time.

Язык: Английский

Процитировано

0

Time Series Analysis for the Adaptive Prediction of Total Phosphorus in the Yangtze River: A Machine Learning Approach DOI Open Access
Tianqi Ma,

Xing Chen

Water, Год журнала: 2025, Номер 17(4), С. 603 - 603

Опубликована: Фев. 19, 2025

Accurate prediction of total phosphorus (TP) in water quality is critical for monitoring ecosystem stability and eutrophication status. However, the distribution natural environmental data such as tends to undergo complex changes over time. Stable reliable results not only require a certain degree periodicity but also that TP model be highly adaptable random fluctuations distributional drifts data. Therefore, it challenge adapt models drift In this study, spatial temporal variations Yangtze River from 2019 2023 were described detail. Using mining techniques, time series analyzed generate forecast dataset focusing on fluctuations. By comparing various models, MTS-Mixers was finally selected experimental baseline different modes used prediction. The show after parameter adjustment, can achieve high accuracy (MAE: 0.145; MSE: 0.277), which guarantee at 20 steps. These research comprehensively reliably predicted provided effective methods tools management. They provide scientific basis protection improvement Basin help formulation implementation relevant policies promote sustainable development environment. addition, study confirms applicability machine learning hydrological responding changes.

Язык: Английский

Процитировано

0

Experimental Warming Affects Salt Marsh Litter Decomposition Through Changes in Plant Species Assemblage DOI Open Access

Maria Victoria Larrosa,

Diana I. Montemayor,

Eugenia Fanjul

и другие.

Journal of Vegetation Science, Год журнала: 2025, Номер 36(2)

Опубликована: Март 1, 2025

ABSTRACT Questions Salt marshes are highly productive coastal ecosystems that, like other wetlands, play a key role in climate change mitigation due to their efficiency sequestering and storing atmospheric carbon (C). This ability is partly explained by the low decomposition rates of organic matter that buried sediments. However, given dynamics temperature‐dependent, escalating temperatures potentially threaten salt marsh C sequestration capacity. The question addressed this study whether increasing temperature affects detritus not only directly but also indirectly affecting plant community composition. Location We performed field manipulative experiment Southwestern Atlantic Mar Chiquita lagoon, Argentina. Methods increased using open‐top chambers (OTCs). At end 3‐year experiment, we estimated species cover at each plot litter with litterbag approach standardized substrate (i.e., Spartina litter) community‐based substrate. Results show use OTCs raised warming treatments 1.05°C on average. After 3 years structure under was characterized dominance densiflora , which produces less labile detritus. Warming reduced 50% levels similar those litter. Conclusions Our results likely have significant consequences structure, biomass dominant driving more recalcitrant production, could slow dynamics. Despite covering 0.3% land surface, important reservoirs; thus, contrasting should be considered when assessing broader effects global change.

Язык: Английский

Процитировано

0

Adding the stoichiometric ratio between oxygen consumed per oxidized carbon (O/C) in the mathematical model of aquatic macrophyte mineralization DOI

Deivid Souza Silva,

Elineide Eugênio Marques,

Marcela Bianchessi da Cunha Santino

и другие.

Chemosphere, Год журнала: 2025, Номер 377, С. 144346 - 144346

Опубликована: Март 23, 2025

Язык: Английский

Процитировано

0