Super pretty samples! What will you do with them now Mingyue? 😊

⛰️Field stats⛰️
1 measurement = 4min⏳

1 plot = 6 light conditions = ~38min⏱️ (personal best pace - no rushing - usually 45-50min).

1 day = 10 plots = 1 plant community🥬
We have 5 plant communities in total.

1 field season = 4 measurement rounds of the 5 plant communities = 1200 measurements🔃

Catch up: Part 2 (July 26th, dry heath) - #CarbonFluxes in control & warmed plots ( #OTC ≈ +1 °C), rapid weather shifts ⛅, plus plant height 🌱 and other environmental drivers' measurements.

bsky.app/profile/blan...

Catch up: Part 1 (July 25th, mesic meadow) - #CO2 and #CH4 measurements under different light conditions using a LI-COR @li-corenv.bsky.social gas analyzer.

bsky.app/profile/blan...

A study from Sybryn Maes and the #ITEX network published in @nature.com shows a 30% increase in #EcosystemRespiration due to passive #warming with #OTC. But what about #NetEcosystemExchange? That is what I try to answer with my #LightResponse set-up.

doi-org.ezproxy.ub.gu.se/10.1038/s415...

How do we measure #CO2 and #CH4 exchanges from alpine-Arctic #tundra #ecosystems? - Part 3 ⛰️🌤️

Same day, same ecosystem type, new view - and a lot of mosquitos (can you spot the thorough repellent application?)

See Parts 1 & 2, and thread for more details! 👇

Congratulations Sara!! 🥳

Finally, the different light conditions, using shading nets to reduce radiations and a lamp from #Heliospectra to increase them, allow us to standardize the measurements despite variable weather conditions.

While measuring carbon exchanges in one plot, I measure soil temperature, soil moisture, and plant height in the following plot to get a better understanding of the mechanisms driving the changes in #carbonflux we observe with warming.

The small greenhouse on the right is an Open Top Chamber (OTC), it warms the air temperature by 1 degree. They are like small windows into the future. Measuring #CO2 and #CH4 exchanges inside and outside the #OTC helps us understand how #climatewarming will impact #carboncycling in the tundra.

How do we measure #CO2 and #CH4 exchanges from alpine-Arctic #tundra #ecosystems...

... when the weather changes so fast? ⛅

Here is how, in a control plot and a passively warmed plot of a dry heath at #Latnjajaure field station, 100m a.s.l. near Abisko, Northern Sweden, on July 26th, 2025.

The different light conditions, using shading nets to reduce radiations and a lamp from #Heliospectra to increase them, allow us to standardize the measurements despite variable weather conditions.

Here you can see me seal a transparent chamber to the ground, multiple times, under different light conditions. This chamber is attached to a #LI-COR gas analyzer, which records changes in concentrations of #CO2 and #CH4.

How do we measure #CO2 and #CH4 exchanges from alpine-Arctic #tundra #ecosystems?

Here is how, in a control plot of a mesic meadow at #Latnjajaure field station, 1000m a.s.l. near Abisko, Northern Sweden, on July 25th, 2025.

The picture shows a tripod with a LED-lamp producing the right wavelengths for photosynthesis, hanging underneath it. Below the lamp is a transparent chamber sealed to the ground, connected to a trace gas analyzer from the LI-COR brand. This set-up measures CO2 and CH4 concentrations within the chamber, that are emitted/absorbed by the ecosystem which is boosted by the extra 1000 PAR from the lamp.

Trying out my new set-up in the forest behind my house🌲🏡 The lamp from #heliospectra is increasing the photosynthetically active radiation #PAR on the ground by 1000! Now I can measure #CO2fluxes at different light intensities no matter the weather 🌥️ Looking forward to bring it to the #ArcticTundra!

Higher shrub density impacts soil composition, decreasing the pH and phosphorus availability in soils as well as increasing the soil organic matter and C:N ratio.

Grasslands are changing in the Alps, not only above-ground, but below-ground too! 🥬 Check out our newly published study, with Lucía Laorden‑Camacho and my previous colleagues at Universität Innsbruck and Université Grenoble Alpes!
doi-org.ezproxy.ub.gu.se/10.1007/s111...

How do soil microbes affect climate change? YouTube video by Wallenbergstiftelserna

Do you want get a sense of what it is we're up to? Here is a popular summary: www.youtube.com/watch?v=gjtb...

Environmental Conditions Modulate Warming Effects on Plant Litter Decomposition Globally Empirical studies show substantial variability in plant litter decomposition responses to warming, leaving the overall impact of climate change on decomposition uncertain. Our meta-analysis of 109 ex...

1/ In our recent meta-analysis, we explored how warming affects plant litter decomposition across the globe published in Ecology Letters:

👉 dx.doi.org/10.1111/ele....

Context matters! #ClimateChange #EcosystemScience #Shrubification #Roots🌱

🌿 We need to raise the profile of #bryophyte ecological research 🌿 (and also a bryophyte emoji!)

In this opinion piece, we as a group of #ECRs outline barriers in bryophyte research and provide recommendations to overcome them across institutional levels & disciplines.

doi.org/10.1016/j.ba...

📢New paper🚨Excited to share our new review paper in @plosclimate.org on Browning events in Arctic ecosystems! 🌿❄️ A wonderful collaboration, brilliantly led by @garethphoenix.bsky.social. 🌿@naturvetenskap.bsky.social @vetenskapsradet.bsky.social

Hi :) I would love to be added to the Starter Pack if it is still possible! Thanks ⛰️🌱❄️

Postdoc position in Arctic carbon cycling here at the University of Gothenburg 🇸🇪 with my very awesome 😎 colleague Mats Björkman: web103.reachmee.com/ext/I005/103... #Arctic #postdoc #job