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Samuel Abiven

@cbiogeo.bsky.social
237 followers 392 following 25 posts

Soil-plant, Carbon, fire et Al. @ENS PSL Paris Director of the ecology station CEREEP-Ecotron IdF

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Reposted by Samuel Abiven
Ivy Notterpek @ivynotterpek.bsky.social · 17/11/2025
Our article in Quaternary Science Reviews is now live ! How can we distinguish natural and anthropic fires? 🔥With @cbiogeo.bsky.social and colleagues. Freely available here: authors.elsevier.com/a/1m79x-4PSD...
authors.elsevier.com
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Samuel Abiven @cbiogeo.bsky.social · 18/09/2025
#TREC_meets_Ecotron day 1 To kick off, we are organizing a workshop with about 60 partners to brainstorm about how TREC can go for freshwater and terrestrial systems, hosted at Fontainebleau @minesparis-psl.bsky.social Campus, coupled with a tour of CEREEP - Ecotron IDF facilities.
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Samuel Abiven @cbiogeo.bsky.social · 18/09/2025
I am personally so glad this long-planned event finally takes place! @normalesup.bsky.social @cnrsecologie.bsky.social
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Samuel Abiven @cbiogeo.bsky.social · 18/09/2025
Thanks to the huge commitment and efforts of both partners, we planned a fantastic program including a field campaign, ecotron experiments, meetings, public events, teaching, and institutional visits, to cite a few.
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Samuel Abiven @cbiogeo.bsky.social · 18/09/2025
Today marks the start of an intense and exciting event, #TREC_meets_Ecotron. Over the next month #CEREEP-EcotronIdF hosts @embltrec.bsky.social scientific expedition teams (field, mobile labs, science and logistics, public communications, etc.) for multiple collaborative efforts.
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Samuel Abiven @cbiogeo.bsky.social · 15/09/2025
More about this project here: www.samuelabiven.org/projects/nut...
samuelabiven.org
NUTRIBOR: Unraveling Boron Isotope Dynamics to Diagnose Forest Nutritional Stress
The NUTRIBOR project addresses a critical gap in our understanding of tree mineral nutrition under global change by leveraging non-traditional boron stable isotopes (δ¹¹B) as tracers of geo- versus…
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Samuel Abiven @cbiogeo.bsky.social · 15/09/2025
The project proposes using stable boron isotopes (δ¹¹B) as tracers of geological and biological nutrient sources. It seeks to quantify how environmental stress like drought, soil depletion, and climate change alter nutrient pathways and leave isotopic signatures in soil, plant, and watersheds.
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Samuel Abiven @cbiogeo.bsky.social · 15/09/2025
News from CEREEP Ecotron (2/15) The eucalyptus trees for the NUTRIBOR project (#ANR, IPGP, University of Strasbourg, CIRAD, University of Saclay, @geosciences.bsky.social ) have arrived!
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Samuel Abiven @cbiogeo.bsky.social · 11/09/2025
We are simulating Archæan conditions inside a reaction tube. By combining ancestral‐type microorganisms from the depths of Lake Pavin with Archean‐analog rocks from northern Canada, we are testing for signs of alteration, in preparation for a much larger experiment in the coming weeks.
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Samuel Abiven @cbiogeo.bsky.social · 11/09/2025
Some news about what's going at our research station (1/15) @cnrsecologie.bsky.social @normalesup.bsky.social. In the ERC-funded Pandora project (Nicolas Coltice, Naida Sakadjian’s PhD), we are trying to reproduce interactions between rocks & microbes when life emerged, around 4 billion years ago.
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Reposted by Samuel Abiven
Marie Arnaud @marnaud.bsky.social · 09/09/2025
New paper : "The nature of soil blue carbon varies across mangrove geomorphic settings" in www.nature.com/articles/s43... with @cbiogeo.bsky.social Catherine Lovelock, A Aldrie Amir, Cornelia Rumpel, Dr. Tuhin Bhadra, Sarah Robin, Cyril Marchand, Amrit Mishra, Syed Hilal Farooq, NIcolas Bottinelli,
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Samuel Abiven @cbiogeo.bsky.social · 27/08/2025
We will use these little eucalyptus in mesocosms inside our large ecotron mimicking Brazilian climatic conditions in order to evaluate if the boron isotope signal is a good tracer of nutrition and water stresses. More about the Nutribor project here: www.samuelabiven.org/projects/nut...
samuelabiven.org
NUTRIBOR: Unraveling Boron Isotope Dynamics to Diagnose Forest Nutritional Stress
The NUTRIBOR project addresses a critical gap in our understanding of tree mineral nutrition under global change by leveraging non-traditional boron stable isotopes (δ¹¹B) as tracers of geo- versus…
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Samuel Abiven @cbiogeo.bsky.social · 27/08/2025
Little eucalyptus trees will grow big... We have just received a shipment from our CIRAD collaborators in Brazil @cirad.bsky.social
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Samuel Abiven @cbiogeo.bsky.social · 26/08/2025
Some impressions from the field ... In the frame of the Sybio project (www.samuelabiven.org/projects/val...), we were in the field last week at St Brieuc's Bay (BZH) to collect green algae in order to turn them into biochar...
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Samuel Abiven @cbiogeo.bsky.social · 25/08/2025
This project is a collaboration between Audrey NIBOYET (@ieesparis.bsky.social ), Nicolàs RASCOVAN (@pasteur.fr‬), Leandro QUADRANA (‪@univparissaclay.bsky.social‬) and myself. Stay tuned as we share updates, data, and discoveries from this ambitious 4-year project funded by @ANR_Research.
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Samuel Abiven @cbiogeo.bsky.social · 25/08/2025
Beyond science, EcoSoilChange aims to inform policymakers and environmental managers with predictive tools for soil conservation and climate adaptation strategies. We’re pushing the boundaries of ecosystem science with real-world impact. #PolicyImpact #Sustainability
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Samuel Abiven @cbiogeo.bsky.social · 25/08/2025
Our multi-disciplinary team combines genomics, biogeochemistry, and microbial ecology to uncover how soil properties influence adaptation. Arabidopsis thaliana populations will help us track genetic responses to environmental stress. #PlantScience #EcoGenomics #SoilScience #biogeochemistry
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Samuel Abiven @cbiogeo.bsky.social · 25/08/2025
Using the groundbreaking Ecotron facility, we will simulate realistic past, present, and future climate scenarios to study soil and plant dynamics under changing conditions. This is a huge step toward predicting ecosystem resilience. #GlobalChange #SoilEcology
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Samuel Abiven @cbiogeo.bsky.social · 25/08/2025
Here a description of the project www.samuelabiven.org/ecosoilchang...
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Samuel Abiven @cbiogeo.bsky.social · 25/08/2025
Exciting news! Our EcoSoilChange project has been officially selected by the French National Research Agency (ANR) for funding. We’ll explore how plant-microbiome-soil ecosystems respond to climate change with cutting-edge climate simulations at the CEREEP Ecotron Ile-de-France. #Ecotron #ANRfunded
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Reposted by Samuel Abiven
Géosciences ENS @geosciences.bsky.social · 10/04/2025
Carbon cycle on fire - New insights in the #carbon cycle of terrestrial ecosystems. Soutenance de HDR de @cbiogeo.bsky.social le 11 avril 2025 à 14h à l'amphi Jaurès de l'ENS (29 rue d'Ulm, Paris 5e). www.geosciences.ens.fr/recherche/seminaires
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Reposted by Samuel Abiven
Montpellier European Ecotron @ecotron-cnrs.bsky.social · 18/03/2025
📢 #Postdoc Opportunity! 🌱🔬 Join an #Ecotron project on soil #carbon sequestration @ecotron-cnrs.bsky.social 🔗 Apply here: emploi.cnrs.fr/Offres/CDD/U... 📍 Work with @alex-ecology.bsky.social & @cbiogeo.bsky.social 📢 Please share! #Soil #Biochar #Weathering #AcademicJobs #JobOffer #CarbonScience
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Reposted by Samuel Abiven
Flora Vincent @floravincent.bsky.social · 21/01/2025
Very nice article in @nature.com about how bringing labs into the field is an incredible opportunity for environmental sciences & how it's a dream come true for many of us. Meet @nikobiota.bsky.social, head of @embl.org Mobile Labs. #protistsonsky #jcampubs www.nature.com/articles/d41...
nature.com
Science on the go: bringing labs into the field
‘Lab vans’ and other facilities can bring researchers closer to what they study.
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Samuel Abiven @cbiogeo.bsky.social · 21/01/2025
A réécouter en podcast ! On y parle de plein de choses intéressantes notamment de travaux menés au CEREEP Ecotron
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Reposted by Samuel Abiven
jpaubrunet @jpaubrunet.bsky.social · 15/01/2025
Les microbes n’échappent pas aux conséquences du réchauffement climatique. Quel est leur rôle dans les émissions de GES ? Comment évoluent-ils face au réchauffement ? Quels sont les risques pour les humains ? @natachatriou.bsky.social @sciencecqfd.bsky.social www.radiofrance.fr/francecultur...
radiofrance.fr
Changement climatique : gare aux microbes
Les microbes n’échappent pas aux conséquences du réchauffement climatique, lequel s’est aggravé durant 2024. Quel est leur rôle dans les émissions de GES ? Comment évoluent-ils face au réchauffement ?...
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Samuel Abiven @cbiogeo.bsky.social · 14/01/2025
This could lead to improper compensation of carbon emissions and wrong reporting of carbon sinks in national carbon accounting schemes. We recommend not to use HTT as a predictor for persistence and stress the importance to rapidly develop more accurate proxies of biochar C persistence in soil.
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Samuel Abiven @cbiogeo.bsky.social · 14/01/2025
We demonstrated that HTT is the main driver of H:C - an indicator of persistence - but that it is not measured accurately enough to precisely predict it. We examined the equations available in the literature and showed that calculated from HTT presented little agreement with calculated from H:C.
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Samuel Abiven @cbiogeo.bsky.social · 14/01/2025
In this paper we collected a dataset of 1230 biochar characteristics to re-evaluate the effect of pyrolysis parameters on biochar characteristics and the possibility to predict from the maximum temperature reached during pyrolysis (HTT).
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Samuel Abiven @cbiogeo.bsky.social · 14/01/2025
New paper !!! A critical re‐analysis of biochar properties prediction from production parameters and elemental analysis - Lebrun Thauront - 2024 - GCB Bioenergy - Wiley Online Library onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
A critical re‐analysis of biochar properties prediction from production parameters and elemental analysis
Biochar is obtained from controlled pyrolysis of organic feedstocks in order to achieve desired physico-chemical characteristics. We analyzed published data on biochars to re-evaluate the effect of p...
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Reposted by Samuel Abiven
Florence Habets @florencehabets.bsky.social · 12/01/2025
Jeudi prochain, nous avons le plaisir d'accueillir Anne Le Strat pour une conférence sur l'eau et la politique de l'eau, basée sur son expérience au sein du service public Eau de Paris et à l'international Au département de Géosciences de l'ENS Paris
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Reposted by Samuel Abiven
Carlos M Herrera @cmhmaliani.bsky.social · 11/01/2025
"There has been a progressive decline in fieldwork-based research and education in ecology over recent decades", precisely at a time when we most urgently need a better understanding of how natural systems work. So sad. Trends in Ecology & Evolution [paywalled] www.cell.com/trends/ecolo...
cell.com
Extinction of experience among ecologists
Fieldwork-based research and education in ecology are under multiple threats and are progressively declining. We call for greater attention to this ongoing loss of direct field experience within the ecology community, as it could have widespread consequences for science and education, ultimately hindering efforts to address the ongoing biodiversity crisis.
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Reposted by Samuel Abiven
Valérie Masson-Delmotte @valmasdel.bsky.social · 09/01/2025
www.noaa.gov/noaa-wildfir...
noaa.gov
Wildfire climate connection
Climate change, including increased heat, extended drought, and a thirsty atmosphere, has been a key driver in increasing the risk and extent of wildfires in the western United States during the last ...
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Reposted by Samuel Abiven
Justine Karst 🇨🇦 @j-karst.bsky.social · 08/01/2025
Posting on behalf of my colleague Sylvie Quideau. She is offering a funded Ph.D. position in Soil Science- Forest Soil Carbon. See ad below for details. Please share. Thx!
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Samuel Abiven @cbiogeo.bsky.social · 06/01/2025
This paper discusses the response of barley to compost and biochar inputs, in the very specific context of oasis agriculture. We simulated these particular conditions in the Ecotron IdF climate simulators
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Samuel Abiven @cbiogeo.bsky.social · 06/01/2025
New paper out Nitrogen budget and barley response to organic amendments in a sandy soil under simulated arid climate - Le Guyader - 2025 - Soil Use and Management - Wiley Online Library bsssjournals.onlinelibrary.wiley.com/doi/10.1111/...
bsssjournals.onlinelibrary.wiley.com
Nitrogen budget and barley response to organic amendments in a sandy soil under simulated arid climate
Besides their potential for carbon sequestration, compost and biochar application in agriculture may constitute an alternative to mineral fertilizers by improving soil fertility and productivity in c...
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