Feedback between climate change and eutrophication: revisiting the allied attack concept and how to strike back

Inland Waters, Journal Year: 2022, Volume and Issue: 12(2), P. 187 - 204

Published: Jan. 28, 2022

Despite its well-established negative impacts on society and biodiversity, eutrophication continues to be one of the most pervasive anthropogenic influences along freshwater marine continuum. The interaction between climate change, particularly warming, was explicitly focused upon a decade ago by Brian Moss others in "Allied attack: change eutrophication," which called for an integrated response both problems, given their apparent synergy. In this review, we summarise advances theoretical framework empirical research issue analyse current understanding major drivers mechanisms can enhance eutrophication, vice versa, with particular focus shallow lakes. Climate affect nutrient loading through changes at catchment landscape levels affecting hydrological patterns fire frequency temperature effects cycling. Biotic communities interactions also directly indirectly affected leading overall weakening resilience impacts. Increasing evidence now indicates several eutrophying aquatic systems increasingly act as important sources greenhouse gases atmosphere, methane. We highlight potential feedback among cyanobacterial blooms, change. Facing challenges simultaneously is more pressing than ever. Meaningful strong measures waterbody are therefore required if ensure ecosystem safe water supply, conserve decrease carbon footprint freshwaters.

Language: Английский

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Methane Emission From Global Lakes: New Spatiotemporal Data and Observation‐Driven Modeling of Methane Dynamics Indicates Lower Emissions

Journal of Geophysical Research Biogeosciences, Journal Year: 2022, Volume and Issue: 127(7)

Published: July 1, 2022

Lakes have been highlighted as one of the largest natural sources greenhouse gas methane (CH

Language: Английский

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The importance of plants for methane emission at the ecosystem scale

Aquatic Botany, Journal Year: 2022, Volume and Issue: 184, P. 103596 - 103596

Published: Nov. 5, 2022

Methane (CH4), one of the key long-lived atmospheric greenhouse gases, is primarily produced from organic matter. Accordingly, net primary production matter sets boundaries for CH4 emissions. Plants, being dominant producers, are thereby indirectly sustaining most global emissions, albeit with delays in time and spatial offsets between plant subsequent emission. In addition, communities can enhance or hamper ecosystem production, oxidation, transport multiple ways, e.g., by shaping carbon, nutrient, redox gradients, representing a physical link zones extensive anoxic sediments soils atmosphere. This review focuses on how plants other producers influence emissions consequences at scales. We outline mechanisms interactions discuss flux regulation, quantification, knowledge gaps across examples. Some recently proposed plant-related fluxes difficult to reconcile budget enigmas related these highlighted. Overall, strongly linked producer communities, directly indirectly, properly quantifying magnitudes regulation links predicting future rapidly changing world.

Language: Английский

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Inland Water Greenhouse Gas Budgets for RECCAP2: 1. State‐Of‐The‐Art of Global Scale Assessments

Global Biogeochemical Cycles, Journal Year: 2023, Volume and Issue: 37(5)

Published: April 26, 2023

Abstract Inland waters are important emitters of the greenhouse gasses (GHGs) carbon dioxide (CO 2 ), methane (CH 4 and nitrous oxide (N O) to atmosphere. In framework 2nd phase REgional Carbon Cycle Assessment Processes (RECCAP‐2) initiative, we review state art in estimating inland water GHG budgets at global scale, which has substantially advanced since first RECCAP nearly 10 years ago. The development increasingly sophisticated upscaling techniques, including statistical prediction process‐based models, allows for spatially explicit estimates that needed regionalized assessments continental such as those established RECCAP. A few recent also resolve seasonal and/or interannual variability emissions. Nonetheless, global‐scale assessment emissions remains challenging because limited spatial temporal coverage observations persisting uncertainties abundance distribution surface areas. To decrease these uncertainties, more empirical work on contributions hot‐spots hot‐moments overall is particularly needed.

Language: Английский

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Towards sustainable aquaculture in the Amazon

Nature Sustainability, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Language: Английский

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Eutrophication exacerbates the impact of climate warming on lake methane emission

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 636, P. 411 - 419

Published: April 27, 2018

Language: Английский

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Contribution of oxic methane production to surface methane emission in lakes and its global importance

Nature Communications, Journal Year: 2019, Volume and Issue: 10(1)

Published: Dec. 2, 2019

Abstract Recent discovery of oxic methane production in sea and lake waters, as well wetlands, demands re-thinking the global cycle re-assessment contribution waters to atmospheric emission. Here we analysed system-wide sources sinks surface-water a temperate lake. Using mass balance analysis, show that internal well-oxygenated surface water is an important source for during stratified period. Combining our results literature reports, emission follows predictive function littoral sediment area mixed layer volume. The source(s) predicted increase with size, accounting majority (>50%) lakes areas >1 km 2 .

Language: Английский

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Seasonal and diel variation in greenhouse gas emissions from an urban pond and its major drivers

Limnology and Oceanography, Journal Year: 2019, Volume and Issue: 64(5), P. 2129 - 2139

Published: April 18, 2019

Abstract Small water systems are important hotspots of greenhouse gas (GHG) emission, but estimates poorly constrained as data scarce. ponds often constructed in urban areas, where they receive large amounts nutrients and therefore tend to be highly productive. Here, we investigated GHG emissions, seasonal diel variation, net ecosystem production (NEP) from an pond. In monthly 24‐h field campaigns during 11 months, diffusive water–atmosphere methane (CH 4 ) carbon dioxide (CO 2 fluxes CH ebullition oxidation were quantified. With oxygen (O measurements, NEP was assessed. The pond a source the entire year, with emission 3.4 kg CO eq m −2 yr −1 . dominant pathway (bubble flux, 50%), followed by emissions (38%) (12%). Sediment release primarily driven temperature especially increased exponentially above threshold 15°C. pond's atmospheric exchange not related or likely high allochthonous (C) input via runoff anaerobic mineralization C. We expect show increase increasing temperature, which should considered carefully when constructing areas. Emissions may partly counteracted management focusing on reduction nutrient organic matter input.

Language: Английский

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Effects of phytoplankton blooms on fluxes and emissions of greenhouse gases in a eutrophic lake

Water Research, Journal Year: 2021, Volume and Issue: 196, P. 116985 - 116985

Published: Feb. 27, 2021

Lakes are important sources of greenhouse gases (GHGs) to the atmosphere. Factors controlling CO2, CH4 and N2O fluxes include eutrophication warming, but integrated influence climate-warming-driven stratification, oxygen loss resultant changes in bloom characteristics on GHGs not well understood. Here we assessed contrasting meteorological conditions stratification phytoplankton composition a eutrophic lake, tested for associated inventories both shallow deep waters, over three seasons (2010-2012). Atmospheric heatwaves had one most dramatic effects GHGs. Indeed, cyanobacterial blooms that developed response heatwave events 2012 enhanced sedimentary concentrations (reaching up 1mM) emissions atmosphere (up 8 mmol m−2 d−1). That summer, contributed 52% warming potential produced lake (in CO2 equivalents) as compared between 34 39% years without blooms. High accumulation subsequent emission were preceded by consumption under-saturation at surface (uptakes -30 d−1 -1.6 µmol d−1, respectively). Fall overturn presented large efflux CH4, particularly from littoral zone after bloom. We provide evidence that, despite cooling observed depth during hot summers, increased via stronger resulting biomass deposition intensified bottom water anoxia. Our results, supported recent literature reports, suggests novel interplay climate change hydrodynamics impacts production lakes. Given global trends enrichment, these interactive should be considered more accurately predict future role lakes GHG emissions.

Language: Английский

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Intense methane ebullition from urban inland waters and its significant contribution to greenhouse gas emissions

Water Research, Journal Year: 2020, Volume and Issue: 189, P. 116654 - 116654

Published: Nov. 17, 2020

Language: Английский

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