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Johannes Edvardsson

@dendrolund.bsky.social
487 followers 450 following 93 posts

Associate professor at Lund University, Sweden. Work with tree rings, dendrochronology, climate change, peatlands, fine arts and cultural heritage. 🌳💍

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Johannes Edvardsson @dendrolund.bsky.social · 20/01/2026
Fieldwork in Söderåsen National Park: reconstructing the long-term history of beech forests using lake-sediment coring from 20 m depth and tree-ring sampling, combining palaeoecology and dendrochronology to study forest establishment and growth over millennia. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 07/01/2026
I’m pleased to share that I’ve taken on the role of Editor-in-Chief of Dendrochronologia, together with Cristina Nabais. We look forward to working with the journal’s editors, reviewers, and authors to support high-quality research in dendrochronology. 🌳💍🔬 www.sciencedirect.com/journal/dend...
sciencedirect.com
Dendrochronologia | Journal | ScienceDirect.com by Elsevier
Read the latest articles of Dendrochronologia at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature
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Reposted by Johannes Edvardsson
Aoife Daly @dendro-aoife.bsky.social · 16/12/2025
Last chance to submit your paper to our 'Dendrochronology and the Human Past' Special Issue, deadline 31 December 2025. 9 articles fully published, 5 under review. Thank you so much, dear authors, for the huge interest, and for sharing your top-class research. www.sciencedirect.com/special-issu...
Pukienė et al., Non-destructive dendrochronology of a human-sized wooden sculpture of Saint Louis using X-ray computed tomography and micro-imaging.
Boswijk et al., Improving chronology for Aotearoa New Zealand: New research in tree-ring derived radiocarbon and stable isotope time series.
Szabó et al., Local timber dominated pre-industrial construction: Insights from archival and dendrochronological data.
Yermokhin et al., First multispecies tree-ring chronologies from the 6th millennium BCE in Southeastern Europe.
Neubauer et al., The underground forest: Tracing forest history in the Erzgebirge through the wood finds from the medieval silver mines of Dippoldiswalde.
Davies et al., ISODATE – Software for stable isotope dendrochronology.
Yermokhin & Zunde, An 831-year pine tree-ring chronology from Northern Belarus reveals historical timber trade routes to the Baltic and beyond.
Gmińska-Nowak et al., Cistercian heritage in Pelplin, Poland. Dendrochronological dating of the covers of medieval codices. 
Läänelaid et al., Investigating the age of the door of the King’s Chapel in Tallinn Dome.
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Johannes Edvardsson @dendrolund.bsky.social · 07/11/2025
Check out our new article, hot off the press! We investigated how climate change affects tree growth in boreal forests and show that the response is likely mediated by local climate conditions and species-specific traits. Enjoy the read! bg.copernicus.org/articles/22/...
bg.copernicus.org
Unpacking climate effects on boreal tree growth: an analysis of tree-ring widths across temperature and soil moisture gradients
Abstract. The effect of climate change on tree growth in boreal forests is likely mediated by local climate conditions and species-specific responses that vary according to differences in traits. Here...
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Johannes Edvardsson @dendrolund.bsky.social · 06/11/2025
A new collaboration with the dendro group at the University of Gothenburg initiated. Together, we will study the establishment of woody shrubs in Greenland and tree growth variability in relation to ongoing climate change. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 27/10/2025
Fieldwork in autumn colors. The forest was quiet and still, with only a group of deer for company. 🌳💍🔬🦌
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Johannes Edvardsson @dendrolund.bsky.social · 17/10/2025
Subfossil Friday! 🌳💍🔬
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Reposted by Johannes Edvardsson
Hyltemossa Atmosphere Ecosystem Research Station Lund University @hyltemossa.bsky.social · 16/10/2025
This week Johannes, our dendrometer & -chronology expert, and Martin, who used #dendrometer measurements from @hyltemossa.bsky.social in his BSc thesis, attended the Nordic #DendroNet meeting at @uninmbu.bsky.social organized by @daniellecreek.bsky.social & visited the @icos-ri.eu station #Hurdal
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Johannes Edvardsson @dendrolund.bsky.social · 14/10/2025
Dendrometer workshop in Ås, Norway. 🇳🇴🌳
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Johannes Edvardsson @dendrolund.bsky.social · 01/10/2025
New publication on how we can use carbon and oxygen isotopes from peatland pines to study hydroclimatic changes. The study is a great collaboration between the projects TURBERAS (University of Geneva) and MOSS (Lund University). Enjoy! 🌳💍🔬 cp.copernicus.org/articles/21/...
cp.copernicus.org
Peatland trees record strong and temporally stable hydroclimate information in tree-ring δ13C and δ18O
Abstract. Peatland trees are valuable archives of paleoclimatic information; however, gaps persist in understanding the relationships between tree growth, peatland hydrology, and hydroclimate variable...
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Reposted by Johannes Edvardsson
Klimatgranskaren @handle.invalid · 29/09/2025
I TV4 fullbordas haveriet när programledaren frågar de båda debattdeltagarna ”du säger att utsläppen ökar, och du säger att de minskar, vad stämmer egentligen?”. Läs Sven Elanders krönika om klimatministerns nya strategi.
klimatgranskaren.se
Klimatministerns dyngspridarstrategi funkar — mot slappa medier
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Johannes Edvardsson @dendrolund.bsky.social · 19/09/2025
The Laboratory for Wood Anatomy and Dendrochronology, Lund university, received new samples from the underwater investigations at Bulverket on Gotland, carried out by Peter d’Agnan & his team. Analyses are now underway, and we’re hoping for new insights into this remarkable site. lnkd.in/dBjtFbYR
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Johannes Edvardsson @dendrolund.bsky.social · 26/08/2025
BECC Annual Meeting 2025 - Restoring Nature under Climate Change, Halmstad, Sweden!
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Johannes Edvardsson @dendrolund.bsky.social · 22/08/2025
New publication about intra-annual growth responses in pine trees to hydro-climatic conditions. The study is a collaboration between the TURBERAS (University of Geneva) and MOSS (Lund University) Enjoy! 🌳 💍 🔬 www.sciencedirect.com/science/arti...
sciencedirect.com
Disentangling intra-annual Pinus sylvestris growth responses to hydro-climatic conditions: Insights from quantitative wood anatomy in peatlands
Peatlands are vital ecosystems that regulate global carbon storage and hydrology, driven by waterlogged conditions that foster organic matter accumula…
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Johannes Edvardsson @dendrolund.bsky.social · 15/08/2025
New publication about the development of Fagus-dominated forest in Söderåsen National Park, in response to land-use changes over the past 600 years. Enjoy! 🌳🔬 journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Johannes Edvardsson @dendrolund.bsky.social · 25/06/2025
Found my MSc thesis when we moved the lab, 132 subfossil trees measured in DOS and examined on a light table. I've been around for a while. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 19/06/2025
Time to start the journey home from Umeå after an intense week in which I held a workshop, moderated, presented posters, had lots of meetings and listened to numerous presentations about new research projects. #TRACE2025 #Dendrochronology
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Johannes Edvardsson @dendrolund.bsky.social · 16/06/2025
2 PhD positions in dendroclimatology! cordis.europa.eu/project/id/1... The project is centered around working up millennium-long wood anatomical datasets to reconstruct temperature. web103.reachmee.com/ext/I005/103... Deadline 30th of June. For questions, contact: jesper.bjorklund@gu.se
cordis.europa.eu
Resolving troubling discord in Boreal versus Austral late Holocene temperature history | BOREAUSTRALIS | Projekt | Fact Sheet | HORIZON | CORDIS | European Commission
According to temperature reconstructions based on natural climate proxy archives (ice cores, lake sediments, tree rings etc.), Northern and Southern Hemisphere (NH, SH) temperature histories differ in...
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Johannes Edvardsson @dendrolund.bsky.social · 02/06/2025
New paper on stand-age effects on biodiversity in Swedish oak forests. Enjoy 🌳 link.springer.com/article/10.1...
link.springer.com
Low cross-taxon congruence and weak stand-age effects on biodiversity in Swedish oak forests - Biodiversity and Conservation
Assessing cross-taxon congruence is vital for effective forest conservation, because different taxonomic groups may respond inconsistently to key habitat variables such as stand age. We examined six t...
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Johannes Edvardsson @dendrolund.bsky.social · 27/05/2025
Meeting at SLU about trees in urban environments and how we should plan the vegetation in our cities in a changing climate. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 16/05/2025
More teaching in the field, today about peatland development and how their hydrology affects tree establishment and growth. 🌳☀️💦
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Johannes Edvardsson @dendrolund.bsky.social · 15/05/2025
Field teaching on treeline movements, slope processes, dendrochronology and climate change! 🌳
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Johannes Edvardsson @dendrolund.bsky.social · 13/05/2025
Good working day visiting two peat bogs for data download from dendrometer, water sampling, and nice weather! 🌳💍🔬☀️💦
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Johannes Edvardsson @dendrolund.bsky.social · 16/04/2025
Dating burnt archaeological wood pieces is a challenge. I managed to piece together a coherent series of tree rings spanning 77 years, let's see if that's enough for a dating. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 09/04/2025
Another day on the peat bog to maintain and read dendrometers to see how the trees react to rewetting. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 03/04/2025
Battery replacement and maintenance of my dendrometers at Store Mosse! Some problems, but the weather was nice. 🌳💍☀️
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Johannes Edvardsson @dendrolund.bsky.social · 02/04/2025
Straight from the press, our new book "Fantastiska ringar" (Fantastic Rings)! The book explores dendrochronological research with a focus on Sweden. Book release on April 24, so more information will follow later! 🌳💍🔬
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Reposted by Johannes Edvardsson
Aoife Daly @dendro-aoife.bsky.social · 19/03/2025
Dendroarchaeology friends! Just a reminder of our Dendrochronologia special issue - Dendrochronology and Knowledge of the Human Past. The first paper is already through the review process, out soon. Submit your paper through this link: www.sciencedirect.com/special-issu... 🌳💍🏺
Photo of an oak hull plank from a Medieval boat. Lines incised on its surface form an image of an anchor.
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Johannes Edvardsson @dendrolund.bsky.social · 12/03/2025
This year's IPS Annual Convention will be held in Gysinge, Sweden. Don't miss this unique opportunity to connect with peatland scientists and experts! peatlands.org/event/annual...
peatlands.org
IPS Annual Convention 2025 - International Peatland Society
Annual Meetings, Seminar and Excursion Peatlands for Environment, Economy and Society 9-12 June 2025 Gysinge, Sweden Enjoy the week before sunny Midsummer in Sweden, together with peatland scientists,...
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Reposted by Johannes Edvardsson
Supermiljöbloggen @supermiljobloggen.se · 12/03/2025
Trump har givit order om att hugga ner träd på en yta tre gånger större än Sverige, och att USA ska lämna fonden som ersätter dem som drabbas hårdast av klimatförändringar. Nu vill han även visa att global uppvärmning är bra för mänskligheten...
supermiljobloggen.se
Klimatforskaren Michael Mann: ”Trump är i krig mot mänskligheten”
FORTSATT GALENSKAP:: Trump har givit order om att massor av skog ska huggas ned, att USA ska dra sig ur fonden för de mest sårbara för klimatförändringar och vill visa att global uppvärmning är bra fö...
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Johannes Edvardsson @dendrolund.bsky.social · 05/03/2025
All of this feels so obvious that it shouldn't need to be published, but unfortunately, free thought, knowledge, and development seem to be something dangerous that is being increasingly opposed.
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Johannes Edvardsson @dendrolund.bsky.social · 07/02/2025
Works with lime / linden (Tilia spp) grown in an urban environment. Rings that are hard to see and messy growth, so surprising and satisfying when I get t-values ​​of 8 between several different trees. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 29/01/2025
What happened to this oak in 2024? Minimal earlywood vessels and a light color across the entire ring. Any suggestions? 🔬🤔
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Johannes Edvardsson @dendrolund.bsky.social · 25/01/2025
A day at the Børsen in Copenhagen. Sad to see how the fire last year destroyed the 400 year old building, but interesting sampling of pine trunks from Gotland together with colleagues from the University of Gothenburg. 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 17/01/2025
Going through and repacking all these samples will require work eight days a week! 🌳💍🔬
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Johannes Edvardsson @dendrolund.bsky.social · 07/01/2025
Check out the ECUADENDRO 2025: 1st Ecuadorian Dendrochronology Conference 🌿 📅 January 23-24, 2025 ⏰ 08:45 AM – 12:00 PM | 2:00 PM – 5:00 PM (Germany Time) 📍 Online via Zoom Be part of a global conversation on tree-ring research and dendrochronology!
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Reposted by Johannes Edvardsson
Aoife Daly @dendro-aoife.bsky.social · 02/01/2025
Welcome to 2025. We have just launched a call for papers for Dendroarchaeology - a special issue of Dendrochronologia. www.sciencedirect.com/special-issu... We welcome papers that shed light on the human past through dendrochronological analyses. Please take a look & share. 🌳💍🏺#dendroarchaeology
This photo depicts the remains of the outer planking and inner framing timbers from a shipwreck found at Køge Harbour in Denmark. The wooden trenails that kept the structure assembled can also be seen, and in the background the keelson is in situ. This wreck was excavated by the Museum of Southeast Denmark, in 2021. The trees used to build it were felled in southern Norway, in the winter of 1761-62 (Dendro.dk report 2023:59).
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Johannes Edvardsson @dendrolund.bsky.social · 19/12/2024
Rewetting of a mire and rain at the same time, could it get much wetter? 🌧️💦
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Johannes Edvardsson @dendrolund.bsky.social · 04/12/2024
Read about cause and effects of tree-colonization on peatlands in the paper Dagens industri (in Swedish). 🌳 www.di.se/brandstudio/...
di.se
Annons: Expert: Myrmarker fria från skog stor hjälp i klimatarbetet
Svenska myrmarker har förmåga att binda stora mängder koldioxid – men hotas av trädetablering. Vid Lunds universitet bedrivs forskning inom området.– Det finns komplicerade samband mellan klimat, hydr...
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Johannes Edvardsson @dendrolund.bsky.social · 21/11/2024
Continues to CT scan oak samples, mostly for fun (and it is). 🌳💍 #dendrochronology
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Johannes Edvardsson @dendrolund.bsky.social · 19/11/2024
New paper in press! 🌳💍 www.sciencedirect.com/science/arti...
sciencedirect.com
Variable associations of annual biomass increment with age, latitude and germination year in four tree species in Sweden
Forests are pivotal for biodiversity, food webs, and human economies, and as carbon sinks their climate change mitigation potential is undisputed. How…
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Johannes Edvardsson @dendrolund.bsky.social · 15/11/2024
Ending the work week by analyzing subfossil pine and oak. One of the pines seems to be about 3500 years old, the oak can probably be 14c-dated. 🌳💍
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Johannes Edvardsson @dendrolund.bsky.social · 13/11/2024
Thankfully, there are days when I dive into new methods, gain fresh insights, and uncover new opportunities—reminding me why I chose research in the first place. Today’s highlight was micro-CT scanning of oak; the level of detail and quality of the images are astounding. A great day at work!
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Johannes Edvardsson @dendrolund.bsky.social · 11/10/2024
Check out our latest work with subfossil oaks! We're working toward an 8,000-year chronology—while there are still some gaps, we've made lots of progress. I'm excited to continue this research, to bridge the gaps and for paleoclimate studies. 🌳💍🇩🇰🇸🇪 www.sciencedirect.com/science/arti...
sciencedirect.com
Exploring the potential for a 9000-year tree-ring chronology consisting of subfossil oak material from southern Scandinavia
In this study, we present the initial results from a long-term initiative to develop a multi-millennial tree-ring width (TRW) chronology for subfossil…
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Johannes Edvardsson @dendrolund.bsky.social · 07/08/2024
New article in which 294 panel paintings by J Jordaens and A van Dyck have been analysed to investigate the origin and date of the wood used. Enjoy! #fineart #dendrochronology nature.com/articles/s41598-024-68641-y
nature.com
Timber trade in 17th-century Europe: different wood sources for artworks of Flemish painters - Scientific Reports
Scientific Reports - Timber trade in 17th-century Europe: different wood sources for artworks of Flemish painters
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Johannes Edvardsson @dendrolund.bsky.social · 06/07/2024
Interview with Chain of Sounds, lots of talk about tree rings and musical instruments! 🌳💍🎻🎼 youtu.be/9cHNIIKyxyA?...
youtu.be
Unlocking Tree Rings: The Secrets of Wood and Time
In this episode of Chain of Sounds, we delve into the fascinating world of dendrochronology with Associate Professor Johannes Edvardsson from the University ...
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Johannes Edvardsson @dendrolund.bsky.social · 03/07/2024
There is still time to apply for the doctoral position about primary forest research! Come and join us! lu.varbi.com/en/what:job/...
lu.varbi.com
PhD in primary forest research
Project description Drought is increasingly impacting Europe's ecosystems, including Swedish forests. In Sweden, new research has shown that primary forests (also called old-growth and natural forests
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Johannes Edvardsson @dendrolund.bsky.social · 19/06/2024
Join us for an existing PhD project about drought resistance in primary forests! Learn more about the project: lu.varbi.com/en/what:job/...
lu.varbi.com
PhD in primary forest research
Project description Drought is increasingly impacting Europe's ecosystems, including Swedish forests. In Sweden, new research has shown that primary forests (also called old-growth and natural forests
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Johannes Edvardsson @dendrolund.bsky.social · 13/06/2024
Check our FORMAS-funded Oak Project in which we explore the future of forests in southern Sweden and chart the course for climate-resilient oak ecosystems. quercusproject.com
quercusproject.com
Oak Project
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Johannes Edvardsson @dendrolund.bsky.social · 13/06/2024
Applications are now open for a fully-funded PhD position at the University of Stavanger using wood and/or charcoal to explore driftwood exploitation in western Norway: www.jobbnorge.no/en/available...
jobbnorge.no
PhD Research Fellow in Analysis of Archaeological Wood and/or Charcoal (261985) | University of Stavanger
Job title: PhD Research Fellow in Analysis of Archaeological Wood and/or Charcoal (261985), Employer: University of Stavanger, Deadline: Friday, August 16, 2024
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