Scholar

Alexander Knohl

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H-index: 65
Environmental science 69%
Geography 19%
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by Alexander Knohl — Reposted by: Matthias Cuntz

bioclimatology.bsky.social
First day of the Baldocchi Symposium in Göttingen. More than 40 scientists are discussing fluxes anywhere and anytime. Great atmosphere!
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by Alexander Knohl

bioclimatology.bsky.social
Congratulation to José Ángel for defending his PhD!! Great work on CO2, H2O and energy fluxes of agroforestry systems. Ivan Mammarella (Uni Helsinki) and Annette Menzel (TU Munich) joined as external examiners. Afterwards we had the traditional walk to the Gänse Liesel fountain in the city center.
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by Alexander Knohl

bioclimatology.bsky.social
Happy to announce we’ve set up a new eddy covariance flux tower at a forest restoration site in the Harz Mountains. The area was clear-cut after a bark beetle outbreak and reforested with broadleaves. A unique opportunity to investigate ecosystem fluxes and forest resilience across recovery stages.
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by Alexander Knohl

bioclimatology.bsky.social
here is the link to Forum Wissen

www.forum-wissen.de/en/home-en/

@forumwissen.bsky.social
Home - Forum Wissen
Your browser does not support HTML5 video. Forum Wissen – the Museum of Knowledge in Göttingen The Forum Wissen of the University of Göttingen is a meeting place where knowledge is conveyed, reflected...
www.forum-wissen.de
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Reposted by: Alexander Knohl

biometlab.bsky.social
Nice visit to forum wissen with Alex Knohl. Cool movie of flow over a wing by Prandtl's group in the 1930s. Also nice history on Quantum Mechanics and its 100 year anniversary @bioclimatology.bsky.social
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by Alexander Knohl

bioclimatology.bsky.social
Thanks for your interest! Since we share two loves, we’re happy to share some slides and would appreciate it if you’d share your feedback... 😉
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by Alexander Knohl

bioclimatology.bsky.social
Peatlands are under pressure due to ongoing degradation, pushing the global biome from net sink to source. At #DBG2025 in Tübingen, we demonstrated how vegetation shifts affect carbon fluxes of a mountain peatland and outlined methods to downscale ecosystem methane fluxes to the plant-species scale.
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by Alexander Knohl

bioclimatology.bsky.social
Visit of Johannes Laubach from the Landscare Research Group in New Zealand, an alumni from the bioclimatology group in Goettingen in the 90s. Great to reconnect.
5

by Alexander Knohl

bioclimatology.bsky.social
Great discussions on eddy covariance measurement for CO2 and H2O isotopologues with our partners from FZ Jülich at the annual meeting of our project ISOMONEAE as part of the ITMS (www.itms-germany.de)
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by Alexander Knohl

bioclimatology.bsky.social
Welcome to Göttingen: Biometeorologist Prof. Dennis Baldocchi (UC Berkeley) joins the bioclimatology group at @uni-goettingen.de as Gauss Professor for two months. In early October, an international symposium on land–atmosphere processes will take place.
@biometlab.bsky.social
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Reposted by: Alexander Knohl

biometlab.bsky.social
A wonderful place to spend a mini sabbatical ...with Alex Knohl's @bioclimatology.bsky.social group in Goettingen. Even get my own office with a great view of the city, nearby forests and boundary layer development

www.uni-goettingen.de/de/130445.html
View from 5th floor of the Faculty of Forest Science and Forest Ecology Building, Georg-August University, Goettingen
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by Alexander Knohl

bioclimatology.bsky.social
Member of state parliament Pippa Schneider visiting our tower site Göttinger Wald. Great discussions about the projects FoResLab and DIVERSA, forest resilience and climate change, nature conservation and politics.
@foreslab.bsky.social‬
@pippaschneider.bsky.social‬
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by Alexander Knohl

bioclimatology.bsky.social
Paper alert! Justus van Ramshorst et al. showed that the net ecosystem-scale carbon uptake of alley-cropping #agroforestry in Germany was higher compared to adjacent monocropping using lower-cost eddy covariance. More details at: doi.org/10.1007/s104...
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by Alexander Knohl

bioclimatology.bsky.social
🎉 Congratulations to Dr. Justus van Ramshorst on successfully defending his PhD! It's been a real pleasure having you in the group — looking forward to seeing what’s next for you. Well done! 👏 #PhDDefense #NewDoctor
2

Reposted by: Alexander Knohl

foreslab.bsky.social
At Night of Science Göttingen, FoResLab showed how we measure CO₂ uptake in forests, offered VR field research insights, and let visitors design their own forest with our optimization tool. Thanks to all who joined and discussed the future of our forests!
@bioclimatology.bsky.social
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Reposted by: Alexander Knohl, Ingolf Kühn

forstunigoe.bsky.social
🌲🌳💧 Researchers have investigated the water uptake depth of spruce, copper beech and Douglas fir. Beech and Douglas fir had access to water from deeper soil layers, unlike spruce. Whether it is a pure or mixed stand also makes a difference.

doi.org/10.1111/plb.70058

@christina-hn.bsky.social
10 27

by Alexander Knohl

bioclimatology.bsky.social
Visit of the Hainich Nationalpark Administration and Park Rangers at our ICOS flux tower.
Thanks a lot for giving us the opportunity to work in this amazing forest for now over 25 years.

@icos-ri.eu
@foreslab.bsky.social
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by Alexander Knohl

bioclimatology.bsky.social
Congratulations to Biplob Dey for his MSc. graduation at the faculty of forest science and forest ecology @uni-goettingen.de with an excellent MSc. thesis in @bioclimatology.bsky.social. Looking forward for collaborating with you in the future!
5

Reposted by: Alexander Knohl

uni-goettingen.de
When, where and how wet is the forest? Researchers studied soil moisture in a forest with manual measurements, satellite, automatic sensors and more. What they found will help manage forests in the future: www.uni-goettingen.de/en/3240.html...

Research: www.sciencedirect.com/science/arti...
In-field data logger (round and orange) measuring soil moisture and temperature ihn a field full of green grass and flowers that are blue and yellow and pink. Photo thanks to Stephen B. Asabere IMAGE: Dr Marian Schönauer from Mendel University in Brno, Czech Republic. Dr Schönauer is sitting on a sloping forest floor covered in brown leaves with tall trees all around him. Dr Schönauer is the study`s first author and he is in the middle of installing the data loggers in the field Photo by Simon Drollinger
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Reposted by: Alexander Knohl

foreslab.bsky.social
Forests in a Warm World: Understanding the Effects of Climate Change and Taking Action - This was the topic presented by @bioclimatology.bsky.social and FoResLab at the Children's University. From experiments and examples, childrens were able to learn about climate change and its effects on forests.
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by Alexander Knohl

bioclimatology.bsky.social
As part of the visit, our team also met with counterparts at IPB University and the University of Jambi, strengthening research collaboration and exchanging knowledge on tropical ecosystem monitoring and sustainable land management practices.
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by Alexander Knohl

bioclimatology.bsky.social
The Jambi site provides critical insights into the biogeochemical processes and carbon dynamics associated with oil palm cultivation in tropical lowland ecosystems. Our visit aimed to assess ongoing measurement infrastructure, gain hands-on exposure to flux tower instrumentation, and maintenance.
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by Alexander Knohl

bioclimatology.bsky.social
Located in Jambi Province on Sumatra Island, Indonesia, this site has been recording continuous greenhouse gas flux and micromet data since March 2014.
1

by Alexander Knohl

bioclimatology.bsky.social
In March, our research team conducted a field visit to the Jambi Oil Palm Plantation, a long-term eddy covariance flux monitoring site that is part of the AsiaFlux network.
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by Alexander Knohl

bioclimatology.bsky.social
Paper alert! Drollinger et al. show that shorter, more intense rain events in European beech forests shrink throughfall and amplify moisture patchiness, gradually loosening hydrological links and altering Critical Zone function. Link: iopscience.iop.org/article/10.1... #Hydrology #Climate
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Reposted by: Alexander Knohl

foreslab.bsky.social
Alexander Knohl (University of Göttingen), Spokesperson of FoResLab, just presented FoResLab at #EGU25 in Vienna.💡

www.egu25.eu

#forestresilience
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by Alexander Knohl

bioclimatology.bsky.social
🌼 Happy Spring from Hainich!
We're out in the field, getting all our study sites ready for leaf-out and the main growing season 🌳☀️
#Fieldwork #SpringVibes #Ecology #ForestResearch #Hainich #Phenology #ClimateScience #Fluxnet #AtmosphericScience
4

Reposted by: Alexander Knohl

foreslab.bsky.social
☀️🌧️🌬️ In subproject 4, Alexander Knohl and Simon Drollinger (UGOE) are developing H₂O and CO₂ flux-based indicators to measure the resilience of forests to climate extremes. The aim is to combine them with other indicators to create a multidimensional resilience indicator.
#forestresilience
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by Alexander Knohl

bioclimatology.bsky.social
New Paper Alert.
Justus van Ramshorst et al. compared lower-cost eddy covariance (LC-EC) with conventional EC (CON-EC). "Our results showed that LC-EC has the potential to measure CO2 and H2O fluxes at approximately 25% of the cost of a CON-EC system".
Find out more at: doi.org/10.5194/amt-...
Lower-cost eddy covariance for CO2 and H2O fluxes over grassland and agroforestry
Abstract. Eddy covariance (EC) measurements can provide direct and non-invasive ecosystem measurements of the exchange of energy, water (H2O) and carbon dioxide (CO2). However, conventional eddy covar...
doi.org
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Reposted by: Alexander Knohl

forstunigoe.bsky.social
☁️ Dr Anas Emad was awarded the dissertation prize of the Universitätsbund Göttingen e.V. for his doctoral thesis. His thesis deals with the measurement of gas exchange between land and atmosphere. Emad significantly developed the "eddy accumulation" measurement method further.

@a-emad.bsky.social
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