Samuel Abiven

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

📢 #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

Science on the go: bringing labs into the field ‘Lab vans’ and other facilities can bring researchers closer to what they study.

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...

A réécouter en podcast ! On y parle de plein de choses intéressantes notamment de travaux menés au CEREEP Ecotron

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 ?...

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...

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.

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.

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).

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...

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....

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

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.

"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...

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 ...

www.noaa.gov/noaa-wildfir...

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!

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

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...

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/...