Response of eutrophication and water quality drivers on greenhouse gas emissions in lakes of China: A critical analysis

Ecohydrology, Journal Year: 2022, Volume and Issue: 16(1)

Published: Sept. 19, 2022

Abstract Lakes, especially shallow lakes, contribute disproportionately to greenhouse gas (GHG; particularly CO 2 and CH 4 ) emissions have received global attention due their high potential warming future climate change. Recent studies identified eutrophication as a critical factor in GHG emissions. However, the role of lake trophic state index (TSI) impact important water quality parameters (WQP) such pH, Chl‐a, total nitrogen, phosphorus organic carbon on are still subject debate an area intense research. To further understand relationship between eutrophication, datasets (GHG WQP) from scientific literature been compiled, statistical analyses these secondary data were performed determine influence In this review, Chinese lakes quantified, factors affecting analysed systematically. The analysis reveals that chlorophyll (as TOC) key significant effect (mainly fluxes). addition, proposed mitigation measures could serve guide for scientists young researchers reduce climatic risks.

Language: Английский

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The migration and microbiological degradation of dissolved organic matter in riparian soils

Water Research, Journal Year: 2022, Volume and Issue: 224, P. 119080 - 119080

Published: Sept. 8, 2022

Language: Английский

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Does eutrophication enhance greenhouse gas emissions in urbanized tropical estuaries?

Environmental Pollution, Journal Year: 2022, Volume and Issue: 303, P. 119105 - 119105

Published: March 8, 2022

Language: Английский

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Mechanisms shaping dissolved organic matter and microbial community in lake ecosystems

Water Research, Journal Year: 2023, Volume and Issue: 245, P. 120653 - 120653

Published: Sept. 19, 2023

Lakes are active components of the global carbon cycle and host a range processes that degrade modify dissolved organic matter (DOM). Through degradation DOM molecules synthesis new compounds, microbes in aquatic environments strongly continuously influence chemodiversity, which can feedback to microbial diversity. Developing better understanding biodiversity patterns emerge along spatial environmental gradients is one key objectives community ecology. A changing climate may affect ecological feedback, including those communities. To maintain function lake ecosystem predict cycling environment, it increasingly important understand coupling between unravel biotic abiotic mechanisms control structure communities lakes, we combined high-throughput sequencing ultra-high resolution mass spectrometry together with null modeling approach. The advantage models their ability evaluate relative influences stochastic deterministic assembly both assemblages. present study includes spatiotemporal signatures six temperate lakes contrasting continental Mediterranean climates during productive season. Different conditions nutrient sources characterized studied lakes. Our results have shown high covariance molecular-level diversity individual especially microeukaryotes free-living bacteria indicating dynamic feedback. We found differences climatic regions were mainly reflected at molecular formula-level microeukaryota community. Furthermore, using was governed by variable selection operating consistently within among In contrast, highly across different trophic status regions. Difference governing composition does not indicate weak these components, rather suggests distinct factors be influencing assemblages separately. Further DOM-microbe (or lack thereof) formulating predictive future ecology function.

Language: Английский

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Spatiotemporal Air Pollution Forecasting in Houston-TX: A Case Study for Ozone Using Deep Graph Neural Networks

Atmosphere, Journal Year: 2023, Volume and Issue: 14(2), P. 308 - 308

Published: Feb. 3, 2023

The presence of pollutants in our atmosphere has become one humanity’s greatest challenges. These pollutants, produced primarily by burning fossil fuels, are detrimental to human health, climate and agriculture. This work proposes the use a spatiotemporal graph neural network, designed forecast ozone concentration based on GraphSAGE paradigm, aid understanding dynamic nature these pollutants’ production proliferation urban areas. model was trained tested using data from Houston, Texas, United States, with varying numbers time-lags, horizons (1, 3, 6 h ahead), input nearby stations. results show that proposed GNN-SAGE successfully recognized patterns underlying data, bolstering its forecasting performance when compared benchmarking persistence 33.7%, 48.7% 57.1% for 1, 3 horizons, respectively. produces error levels lower than we could find existing literature. conclusions drawn variable importance SHAP analysis also revealed predicting ozone, solar radiation becomes relevant as time horizon is raised. According EPA regulation, determined nonattainment conditions reference station.

Language: Английский

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Impacts of riverine pollution on greenhouse gas emissions: A comprehensive review

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110649 - 110649

Published: July 19, 2023

Many recent studies have revealed that polluted rivers are emerging as potent emitters of greenhouse gases (GHGs). However, the scientific understanding GHG emissions is still limited. The present review aims to provide a systematic analysis from in various eco-regions. highlighted high nutrient loadings such total nitrogen (TN), organic carbon (OC), phosphorous (TP), and anoxic condition major influencing factors for CO2, N2O, CH4 emissions. Moreover, strong positive correlation trophic level index (TLI) with CO2 fluxes was observed. state-of-art suggested based on land use water quality, different vary considerably. For instance, reported N2O ranged between 0.007 3.721 mmol m-2d-1 urban-impacted 0.009–0.049 agricultural rivers. 0.001 458 m-2d-1, 0.05–1.02 1.40–14.30 urban impacted, natural rivers, respectively. Further range 19.94 895 Overall in-depth existing state art pollution (i.e. eutrophication) enhances rivers; therefore, incorporating effective restoration measures can mitigate intensity assist achieving sustainable development goals (SDGs).

Language: Английский

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Nanofertilizer Use for Adaptation and Mitigation of the Agriculture/Climate Change Dichotomy Effects

Climate, Journal Year: 2023, Volume and Issue: 11(6), P. 129 - 129

Published: June 10, 2023

Agriculture is considered a significant climate change (CC) driver due to greenhouse gas (GHG) emissions and the loss of fertilizers that contribute water eutrophication. On other hand, effects are already impacting agriculture, endangering food security. This paper explores dichotomies agriculture on CC as well focusing contribution nanofertilizers can bring this complex system in both directions. The strategies reduce while adapting mitigating its must be global effort. It not possible focus only reduction GHG stop being felt worldwide. Nanofertilizers, especially slow- controlled-release nanofertilizers, nutrient input also boost productivity some effects, such soil imbalance agricultural emissions. As so, review highlights benefits their role part strategy reach mitigate ever-growing presents guidelines for increased use these materials order enhance efficacy strategy.

Language: Английский

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Multi-Interacting Natural and Anthropogenic Stressors on Freshwater Ecosystems: Their Current Status and Future Prospects for 21st Century

Water, Journal Year: 2024, Volume and Issue: 16(11), P. 1483 - 1483

Published: May 23, 2024

The inheritance of historic human-induced disruption and the fierceness its impact change aquatic ecosystems. This work reviews some main stressors on freshwater ecosystems, focusing their effects, threats, risks, protection, conservation, management elements. An overview is provided water protection linked to stressors: solar ultraviolet radiation, thermal pollution, nanoparticles, radioactive salinization, nutrients, sedimentation, drought, extreme floods, fragmentation, pesticides, war terrorism, algal blooms, invasive plants, riparian vegetation, fish. Altogether, these build an exceptionally composite background that are continuously changing ecosystems diminishing or even destroying capability create maintain ongoing natural healthy products essential services humans. Environmental human civilization sustainability cannot exist without proper all over planet; this specific impossible if widespread studied not deeply understood structurally functionally. Without considering each synergisms, Earth’s doomed in terms both quantitative qualitative aspects.

Language: Английский

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Response of dissolved carbon dioxide and methane concentration to warming in shallow lakes

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121116 - 121116

Published: Jan. 7, 2024

Language: Английский

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Nature-based solutions for carbon sequestration in urban environments

Current Opinion in Environmental Science & Health, Journal Year: 2024, Volume and Issue: 37, P. 100536 - 100536

Published: Jan. 23, 2024

Language: Английский

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