Live and recent posts from across the Fediverse tagged #soilorganiccarbon, aggregated by home.social.
【🎉Latest accepted article】
Thinner roots were more efficient to increase #soilorganiccarbon and benefited fungal necromass in an alpine meadow
#Microbialnecromasscontribution | #Plantcommunity | #Rhizodeposition | #Rootfunctionaltraits | #Soilorganicmatter
@iLZU1909 @UniKonstanz
【🎉Latest accepted article】
Short-term water-table drawdown alters microbial carbon-acquisition attributes and microbial-derived carbon pools in #peatlands
#alpinepeatlands | #keymicrobialtaxa | #microbialresiduecarbon | #microbialtraits | #Qinghai_TibetanPlateau | #soilorganiccarbon | #water_tablechanges
Challenges In The Use Of Local Data For Regional Scale Mapping Of C And N Stocks In The Continuous Permafrost Zone At The Yukon Coastal Plain | Heatwave Risks To Tipping Point Of Permafrost
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https://doi.org/10.5194/soil-12-113-2026 <-- shared paper
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https://doi.org/10.1038/s41558-026-02603-2 <-- shared paper
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https://www.theguardian.com/environment/2026/aug/20/tipping-points-heatwaves-wildfires-permafrost-climate-crisis <-- shared media article
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https://www.cbc.ca/news/canada/north/permafrost-slumps-herschel-island-qikiqtaruk-yukon-9.7168780 <-- shared media article
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[putting together two different ‘sorts’/focuses of research/reporting, but…]
H/T @gustaf Hugelius | Professor at Stockholm University
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“Permafrost soils are particularly vulnerable to climate change. To assess and improve estimations of carbon (C) and nitrogen (N) budgets it is necessary to accurately map soil carbon and nitrogen in the permafrost region. In particular, soil organic carbon (SOC) stocks have been predicted and mapped by many studies from local to pan-Arctic scales. Several studies have been carried out at the Canadian Beaufort Sea coast, though no regional maps of terrestrial carbon stocks based on spatial modelling has been conducted yet. This study combines available field data from the Canadian Yukon coastal plain and uses it to map regional SOC and N stocks using the machine learning algorithm random forest and environmental variables based on remote sensing data. [The authors] developed models using the data for the entire region and separate models for the coastal mainland area and Qikiqtaruk Herschel Island. Each model was used to map SOC and N stocks for its respective area. [They] assessed the performance of the different random forest models by using crossvalidation. [They] further assessed model results using the Area of Applicability (AOA) method and the quantile regression forest approach, comparing the results and discussing their implications within the context of both methods. [They] explore[d] local differences in soil properties and how soil data distribution across the region affects the accuracy of the predictions of SOC and N stocks..."
#permafrost #soils #geology #climatechange #temperature #thawing #melting #emissions #CO2 #methane #carbon #nitrogen #GIS #spatial #mapping #Qikiqtaruk #HerschelIsland #Yukon #Canada #soilorganiccarbon #SOC #arctic #cryosphere #BeaufortSea #coast #coastal #machinelearning #model #modeling #remotesensing #earthobservation #carbonstocks #island #mainland #spatialanalysis #scale
【🎉Latest accepted article】
Nighttime warming intensifies #soilorganiccarbon loss and reshapes microbial carbon processing
#diurnalasymmetricwarming | #carbonfractions | #microbialcarbonuseefficiency | #microbialK/rstrategyratio
【🎉Latest accepted article】
Patterns and drivers of #soilorganiccarbon in the China’s coastal #mangrovewetlands: A data synthesis
Yarong Sun et al. explored the influence planting density of on the sources of #SoilOrganicCarbon (SOC) in forest ecosystems remains unclear.
#StandDensity | #MicrobialNecromass | #LigninPhenols | #MicrobialCommunityComposition
The contribution of microbial components to #SoilOrganicCarbon (SOC) decreases significantly as SOC accumulates, while the contribution of plant-derived #LigninPhenols to SOC remains stable, despite increased lignin phenol oxidation.
#AminoSugars | #AlpinePeatlands | #MicrobialNecromass | #SurfaceSoil
【🎉Latest accepted article】
Soil #CarbonSequestration in #MangroveRestoration: the role of #FloodingDuration and stand type
【🎉Latest accepted article】
#FungalCommunity shifts driven by soil substrate availability govern #MicrobialCarbonUseEfficiency across an elevation gradient in the Qinling Mountains, China
#SoilOrganicCarbon | #NutrientAcquisition | #MicrobialCommunity | #BioticAndAbioticDrivers
Xuemei Wu et al. found significant changes in above- and belowground forest properties along the #EctomycorrhizalTree dominance gradient.
#EnzymaticActivity | #ForestCommunityStructure | #Mineralization | #SoilMicrobialCommunity | #SoilOrganicCarbon
Yu An et al. examined #SoilOrganicCarbon and total nitrogen storage, and #RootTraits of Leymus chinensis and plant community across a chronosequence of grazing-exclusion grasslands in China’s semi-arid #SongnenPlain.
#Community_weightedMean | #EcologicalRestoration | #SoilFunctions | #SongnenGrassland
#Afforestation in subtropical #KarstEcosystems drives #SoilOrganicCarbon accumulation through distinct, depth-dependent pathways --- fostering microbial activity in the topsoil and enhancing mineral protective capacity.
#Lignin | #MicrobialNecromassCarbon | #SoilDepth | #SubtropicalRegion
Elevated #StandDensity constrains #SoilOrganicCarbon (SOC) accumulation by reducing #LigninPhenol and #MicrobialNecromass carbon (C) content, and the negative effect of planting density on litter input reduced soil C content and #MicrobialCommunity.
Reducing stand density significantly enhances #TreeSpeciesDiversity, which in turn promotes #SoilOrganicCarbon accumulation by influencing microbial carbon fixation and degradation potential.
#PlantDiversity | #SoilOrganicCarbonFractions | #CO2FixationPathways | #MicrobialCommunities | #MmicrobialCAZymeFamilies | #ForestCarbonSequestration
In #AlpinePeatlands, contribution of microbial components to #SoilOrganicCarbon (SOC) decreases significantly as SOC accumulates , while the contribution of plant-derived #LigninPhenols to SOC remains stable.
New research in Global Change Biology highlights the centennial legacy of land-use on German agricultural soils.
It can take 180 years for soil organic carbon to stabilize after land-use change—meaning today’s carbon stocks are still shaped by history from the 1800s.
Details: https://doi.org/10.1111/gcb.17444
#Soil #ClimateCrisis #AgriScience #Ecology #SoilOrganicCarbon
🌲In temperate forests, changes in the dominance gradient of #EctomycorrhizalTreeSpecies significantly affect both aboveground and underground forest properties.
#EnzymaticActivity | #ForestCommunityStructure | #Mineralization | #SoilMicrobialCommunity | #SoilOrganicCarbon
🔄 After grazing exclusion, #SoilOrganicCarbon (SOC) and #TotalNitrogen (TN) quickly recovered with their storage peaking at different exclusion durations. Differences in SOC and TN storage were primarily driven by #Roottraits at the community-level.
#Community_weightedMean | #EcologicalRestoration | #SoilFunctions | #SongnenGrassland
Dandan Zhang et al. explored drivers of #MicrobialNecromass carbon and its contribution to #SoilOrganicCarbon along an elevational gradient.
#MontaneEcosystems | #SoilOrganicCarbonDynamics | #EnzymeActivities | #AlpineForest
❓ Drivers of #MicrobialNecromass carbon (MNC) and its contribution to #SoilOrganicCarbon (SOC) along an elevational gradient
Results:
The rapid decomposition of bacteria necromass C is the main way of MNC loss in wet season in #AlpineForest.
#MontaneEcosystems | #SoilOrganicCarbonDynamics | #EnzymeActivities
【🎉Latest accepted article】
Planting density modulates #SoilOrganicCarbon sources by regulating plant lignin and #MicrobialNecromass C in temperate forests
#StandDensity | #LigninPhenols | #MicrobialCommunityComposition
【🎉Latest accepted article】
Depth-dependent mechanisms underpinning #SoilOrganicCarbon accumulation following #Afforestation
#Lignin | #MicrobialNecromassCarbon | #KarstEcosystem | #SoilDepth | #SubtropicalRegion
https://www.europesays.com/2399888/ Science-based crop rotation could boost profits and protect soil #CarbonSequestration #CropProduction #CropRotation #DevinSerfas #Environment #FarmManagement #RuralEconomics #SoilManagement #SoilOrganicCarbon
Jiashun Zhong et al. investigated the effects of poplar plantations on biomass carbon stock (BCS) and #SoilOrganicCarbon (SOC) stock in #DongtingLake wetlands, China, using native Miscanthus lutarioriparius vegetation as a control.
【🎉Latest accepted article】
Patterns and determinants of plant- and microbial-derived carbon in #AlpinePeatlands
#LigninPhenols | #AminoSugars | #SoilOrganicCarbon | #MicrobialNecromass | #SurfaceSoil
【🎉Latest accepted article】
Linking #MicrobialNecromass carbon to #SoilOrganicCarbon: seasonal and elevational patterns and potential drivers in the mountain forest ecosystems of Southwest China
🔄 How #SoilOrganicCarbon (SOC) storage and its stabilizing mechanism vary along #AltitudinalGradients ❓
Results:
Altitudes ⬆️, SOC contents →
⭐ bulk soils and #HeavyFractions ⬆️;
⭐ #SoilAggregates ➖;
➡️➡️ The increase in Fe/Al oxides might be the reason.
New publication: Understanding the effects of organic versus conventional farming on #soilorganiccarbon characteristics – a #chronosequence study. #organicfarming #SOC #soilmanagement
https://doi.org/10.1016/j.geoderma.2025.117371
#PoplarPlantations ➡️ #BiomassCarbonStock (BCS) & #SoilOrganicCarbon (SOC)
1️⃣ Poplar plantations enhanced both BCS and SOC;
2️⃣ #SoilBulkDensity⬆️, BCS; #SoilSandContent⬆️, SOC⬇️;
https://doi.org/10.1093/jpe/rtaf015
❇️ #Rest-grazing in spring ➡️ #SoilMicrobialCommunity🟰 Effect❓
Place: #AlpineGrasslands
Results:
1️⃣ Increased #AbovegroundBiomass ➡️ Improved #PlantDiversity;
2️⃣ Increased #SoilOrganicCarbon ➡️ restored #SoilProperties.
https://doi.org/10.1093/jpe/rtae110
#Warming ➡️ #MicrobialNecromass & #SoilOrganicCarbon (SOC)❓
Observation indicators:
1️⃣amino sugar C;
2️⃣particulate organic matter;
3️⃣mineral-associated organic matter
Results:
1️⃣reduced the formation of new SOC;
2️⃣decreased the new microbial necromass in both soil fractions.
https://doi.org/10.1093/jpe/rtaf005
#SoilOrganicCarbon (organic matter / plant and animal residues at various stages of decomposition) is one of the key indicators of hashtag#soilhealth / soil ecosystem services. But how do you measure and report SOC? We advocate that SOC density [kg/m3] is the central variable to monitor SOC dynamics. It is derived by measuring SOC content and Bulk density (separately) and then by a simple formula:
SOC [kg/m3] = SOC [dg/kg]/100 * BD [kg/m3] * (1-CF)
*CF is the coarse fragments fraction (0-1).
On NYE, as I look back at 2024, I want to share three Senate reports, of which I am quite proud. The first is Critical Ground, the major two-year study carried out by the Standing Senate Committee on Agriculture and Forestry - a comprehensive look at soil health in Canada & a call to action to protect our farm soil & native grasslands, not just for food production, but for climate change mitigation. https://sencanada.ca/en/info-page/parl-44-1/agfo-critical-ground/ #SenateofCanada #soil #soilhealth #climatechange #soilorganiccarbon
🌱 Registrations for the Soil Health Now! Conference are now open! 🌱 https://2025.ai4soilhealth.eu/#submit
🌲From April 8-10, 2025, we will be hosting the Soil Health Now conference, alongside workshops and discussion forums at the Wageningen International Conference Center (WICC). 🌿 The event will feature 12+ pan-European "Mission Soil" projects and 11+ distinguished keynote speakers.
🟠 #EO Data for Monitoring #SoilHealth
🟠 #SoilOrganicCarbon (SOC)
🟠 Tech/Tools demonstrations
🟠 Soil Health Indicators
I am too “old” now, but did participate in 2021 at the #EUSO #EUSoilObservatory Young #Soil Researcher Forum, and it was a lot of fun 👇
Be part of it! --> https://esdac.jrc.ec.europa.eu/euso/2nd-young-soil-researchers-forum
#SoilBiodiversity #SoilErosion #SoilNutrients #SoilScience #SoilOrganicCarbon
Spatial co-variation matters when upscaling environmental samples like soil organic carbon stocks. Geostatistics is under-utilized in most regional estimats. Strong spatial autocorrelation preserves uncertainty in upscaled estimates. By not taking this into account, may estimates report uncertainties that are too small. Properly taking this into account requires large sample sizes. Wadoux and Heuvelink 2023 https://doi.org/10.1111/2041-210X.14106
To a bystander it looks like brutal treatement yet it's only SOP in science. And the reply is a fun bit of cut-and-thrust concluding with a polite (barbed?) thank-you:
"...we thank Kästner et al. (2024) for raising questions to highlight the most important statements in our review..."
But more importantly, at this juncture it seems we'd best figure this out once and for all, global carbon sink/source/flux/budget being all-inclusive?
Down core fits for a microbial and mineral-sorption with transport of #soilOrganicCarbon explains old soils without the need for traditional passive pools. Ahrens etal 2015 https://doi.org/10.1016/j.soilbio.2015.06.008 #ProcessModel #LandCarbon #SciLit
One of those papers where I'm a little ashamed at how long it took me to find/read.
Quantifying The Recarbonization Of Post-Agricultural Landscapes
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https://doi.org/10.1038/s41467-023-37907-w <-- shared paper
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#CarbonCycle #ClimateChangeMitigation #RestorationEcology #ecosystem #restoration #security #food #sustainable #agriculture #PAL #GIS #spatial #mapping #spatialanalysis #spatiotemporal #ecosystems #soil #soilhealth #carbonsink #recarbonisation #soilorganiccarbon #foodsecurity #global #carbonstocks #climatechange
#GSB2023 Jennifer Pett-Ridge: what is alive, what is active and what is dead in soil: 50% of #SoilOrganicCarbon is represented by microbial necromass
🐦🔗: https://n.respublicae.eu/Plants_EFSA/status/1635950411122106369