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Reposted by Weiwei Zhan

Charlotte Grossiord @charlottegrossiord.bsky.social · Aug 20

New PhD position in Plant Ecophysiology🌳 Study how atmospheric & soil drought shape tree carbon & water relations at the VPDrought experiment in Switzerland. Start Jan 2026. Apply here: m.refline.ch/273855/1759/... @wslresearch.bsky.social

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LEMONTREE @lemontree-uofr.bsky.social · Aug 15

📢Just out! A new paper by the team in @pnas.org : Observed declines in leaf nitrogen explained by photosynthetic acclimation to CO2!

www.pnas.org/doi/10.1073/...

Maoya Bassiouni, @nickgregsmith.bsky.social @trevorkeenan.bsky.social et al.

Observed declines in leaf nitrogen explained by photosynthetic acclimation to CO2 | PNAS

Widespread evidence of decreasing leaf nutrients has raised concerns about ecosystem productivity under global change. Interpreting trends in leaf ...

www.pnas.org

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Weiwei Zhan @weiweizhan.bsky.social · Jul 16

What a wonderful surprise to see our work reflected in a commentary that so clearly "gets it". Thank you so much @juergenknauer.bsky.social !

Nature Ecology & Evolution @natecoevo.nature.com · Jul 16

Read the accompanying News & Views commentary from Jürgen Knauer 👇 www.nature.com/articles/s41...

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Nature Ecology & Evolution @natecoevo.nature.com · Jul 15

A machine learning approach using long-term observations of eddy covariance finds that the increase in plant intrinsic water-use efficiency under higher CO2 is driven primarily by reduction in canopy conductance, rather than stimulation of gross primary productivity
www.nature.com/articles/s41... 🧪

Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency - Nature Ecology & Evolution

A machine learning approach using long-term observations of eddy covariance finds that the increase in plant intrinsic water-use efficiency under higher CO2 levels, across diverse ecosystems, is drive...

www.nature.com

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Weiwei Zhan @weiweizhan.bsky.social · Jul 14

Thanks so much, Jürgen! It means a lot to see our work reflected in your insightful commentary.

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Jürgen Knauer @juergenknauer.bsky.social · Jul 14

What a pleasure to write a News & Views piece on this intriguing article that found surprising insights into WUE trends --> www.nature.com/articles/s41...

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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · Jul 12

For a recent review see www.nature.com/articles/s43...
"Both short-duration and long-duration (>1 day) rainfall extremes are intensifying with warming at a rate consistent with the increase in atmospheric moisture" (~7% per degree C), but some local convective rainfall events increase even more. 5/5

Anthropogenic intensification of short-duration rainfall extremes - Nature Reviews Earth & Environment

Short-duration rainfall extremes are determined by complex processes that are affected by the warming climate. This Review assesses the evidence for the intensification of short-duration rainfall extr...

www.nature.com

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Nature Plants @natplants.nature.com · Jul 8

New Article: "When and where soil dryness matters to ecosystem photosynthesis" rdcu.be/evfGV

A causality-guided explainable AI framework shows soil moisture dominates vapour pressure deficit in shaping global photosynthesis during water-limited conditions.

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Pierre Gentine @pierregentine.bsky.social · Jul 12

Delighted to share our new paper "Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency:
www.nature.com/articles/s41... , which demonstrates the strongly detectable impact of CO2 fertilization on canopy and stomata conductance,

This link will take you to a page that’s not on LinkedIn

lnkd.in

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Weiwei Zhan @weiweizhan.bsky.social · Jul 11

Also deeply grateful to those acknowledged in the paper for insightful feedback and support: @jianingfang.bsky.social @wu-sun.bsky.social @dukesjeff.bsky.social @annamichalak.bsky.social and others not on Bluesky!

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Weiwei Zhan @weiweizhan.bsky.social · Jul 11

Huge thanks to my amazing co-authors: @jiangong-liu.bsky.social @chunhuizhan.bsky.social @abcube.bsky.social @pierregentine.bsky.social , and to others not on Bluesky!

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Weiwei Zhan @weiweizhan.bsky.social · Jul 11

Also excited to see our work accompanied by a View & Commentary by Dr. Jürgen Knauer. We sincerely appreciate the thoughtful perspective! www.nature.com/articles/s41...

Water-use efficiency driven by water savings - Nature Ecology & Evolution

Analysis of land–atmosphere water and CO2 fluxes suggests that reduced water use by vegetation, rather than increased carbon uptake, is the driving factor behind the well-documented increase in vegeta...

www.nature.com

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Weiwei Zhan @weiweizhan.bsky.social · Jul 11

Interested in how plant intrinsic water-use efficiency (iWUE) responds to rising CO2? Our new paper shows that CO2-enhanced iWUE is mainly driven by reduced canopy conductance, while stimulation of ecosystem photosynthesis is less detectable given current data length. www.nature.com/articles/s41...

Reduced water loss rather than increased photosynthesis controls CO2-enhanced water-use efficiency - Nature Ecology & Evolution

A machine learning approach using long-term observations of eddy covariance finds that the increase in plant intrinsic water-use efficiency under higher CO2 levels, across diverse ecosystems, is drive...

www.nature.com

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Reposted by Weiwei Zhan

Liangzhi Chen @liangzhi-chen.bsky.social · Jul 8

This species-specific study and another latest out global analyses www.nature.com/articles/s41... converge to the same conclusion: enhanced tree/forest growth by the global warming cannot offset the negative impacts causes by disturbances, such as droughts.

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Huanyuan Zhang-Zheng @h-zhang.bsky.social · Jul 10

This was the first chapter of my PhD but we spent a long long time on reviewing and revising (which indeed greatly improved the quality). This is where we need nice supervisors and coauthors who keep encouraging me regardless of peer criticism and rejection! Also C.Bio. has very good author service!

Communications Biology @commsbio.nature.com · Jul 10

Testing ecophysiological theory using tree traits along a vapour pressure deficit (VPD) gradient shows, as predicted, that photosynthetic capacity is higher at higher VPD sites. Contrary to the predictions, potential water conductivity tends to increase with higher VPD. doi.org/10.1038/s420...

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Jiangong Liu @jiangong-liu.bsky.social · Jul 9

Our new paper is out on Nature Plants! We found that soil moisture contributes more to ecosystem photosynthesis than VPD for the water-limited periods and water-limited locations, using causality-guided explainable AI. www.nature.com/articles/s41...

When and where soil dryness matters to ecosystem photosynthesis - Nature Plants

Using a causality-guided explainable AI framework, Liu et al. show soil moisture dominates vapour pressure deficit in shaping global photosynthesis during water-limited conditions.

www.nature.com

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Pierre Gentine @pierregentine.bsky.social · Jul 8

Excited to share our new paper "When and where soil dryness matters to ecosystem photosynthesis" www.nature.com/articles/s41..., which resolves a long-standing debate as to whether soil moisture or atmospheric dryness dominates water stress response.

When and where soil dryness matters to ecosystem photosynthesis - Nature Plants

Using a causality-guided explainable AI framework, Liu et al. show soil moisture dominates vapour pressure deficit in shaping global photosynthesis during water-limited conditions.

www.nature.com

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Ben Bond-Lamberty @benbondlamberty.bsky.social · Jun 20

Traditionally ESMs didn't actively model human decision-making, but just published today: "E3SM-GCAM: A Synchronously Coupled Human Component in the E3SM Earth System Model Enables Novel Human-Earth Feedback Research" by Alan Di Vittorio et al.! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

E3SM‐GCAM: A Synchronously Coupled Human Component in the E3SM Earth System Model Enables Novel Human‐Earth Feedback Research

We have incorporated a novel, advanceable human component in an Earth system model to simulate human-Earth feedbacks Including terrestrial productivity feedbacks from the Earth to the human syste...

agupubs.onlinelibrary.wiley.com

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LEMONTREE @lemontree-uofr.bsky.social · Jun 19

🌍New paper out today!!! Global variation in vegetation carbon use efficiency inferred from eddy covariance observations @xiangzluo.bsky.social @natureportfolio.nature.com 🔗👇
www.nature.com/articles/s41...

Global variation in vegetation carbon use efficiency inferred from eddy covariance observations - Nature Ecology & Evolution

The efficiency with which plants use carbon assimilated through photosynthesis has a key role in determining natureʼs capacity to offset carbon dioxide emissions. This study leverages global eddy cova...

www.nature.com

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Pierre Gentine @pierregentine.bsky.social · Jun 17

Excited to share our new Nature Geoscience paper on how persistent Rossby waves patterns are triggering simultaneous hot-dry extremes across western Europe, Asia, and the U.S., severely reducing vegetation productivity and carbon uptake.
www.nature.com/articles/s41...

Northern ecosystem productivity reduced by Rossby-wave-driven hot–dry conditions - Nature Geoscience

Satellite observations suggest that prolonged hot–dry conditions induced by Rossby waves in the jet stream reduce ecosystem productivity, providing insights into the potential impacts of a future warm...

www.nature.com

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Jeff Dukes @dukesjeff.bsky.social · Jun 6

How do dominant plants' functional traits affect biomass responses to global change? New paper by Mingyan Hu et al uses the large Manipulation Experiments Synthesis Initiative (MESI) database to find out.
besjournals.onlinelibrary.wiley.com/doi/epdf/10....

Plant functional traits affect biomass responses to global change: A meta‐analysis

The positive effects of elevated nutrient on belowground biomass were more pronounced for communities dominated by “fast” species. In communities dominated by arbuscular mycorrhizal fungi-associated ...

besjournals.onlinelibrary.wiley.com

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Ben Bond-Lamberty @benbondlamberty.bsky.social · Jun 11

Now online: "Permafrost, Peatland, and Cropland Regions Are Key to Reconciling North American Carbon Sink Estimates" by Kelsey Foster et al., including @avnimalh0tra.bsky.social w/ Stanford, PNNL, NAU, and NRC colleagues agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Permafrost, Peatland, and Cropland Regions Are Key to Reconciling North American Carbon Sink Estimates

Additional sink inferred by inversions in just 16% of North America accounts for the discrepancy between top-down and bottom-up estimates Statistically significant differences between top-down an...

agupubs.onlinelibrary.wiley.com

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Weiwei Zhan @weiweizhan.bsky.social · Apr 5

This is a collaborative work with support from @xiyang.bsky.social @youngryel.bsky.social @bendechant.bsky.social @pierregentine.bsky.social !

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Weiwei Zhan @weiweizhan.bsky.social · Apr 5

Wanna learn how to partition CO2 fluxes using ML and SIF? 🌱🤖 Come join me on April 8 - it's a talk ➕ a hands-on coding session!

FLUXNET Early Career Network @fluxnetecn.bsky.social · Apr 4

Don't miss this exciting Workshop to learn on Partitioning CO2 Fluxes
Our invited speaker is Weiwei Zhan from Columbia University. The workshop focuses on sciencedirect.com/science/arti...?

Date: Tuesday, April 8, 2025
Time: 1 PM EST

Register for this webinar: lbnl.zoom.us/meeting/regi...

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Nick Smith @nickgregsmith.bsky.social · Mar 28

New pub out in @annbot.bsky.social led by Astrid Ode titled "Temporal constraints on leaf-level trait plasticity for next-generation land surface models"

We critically examine timescales of trait-environment responses

Have a look!

@lemontree-uofr.bsky.social

academic.oup.com/aob/advance-...

Temporal constraints on leaf-level trait plasticity for next-generation land surface models

AbstractBackground and aims. Dynamic global vegetation models (DGVMs) are essential for quantifying the role of terrestrial ecosystems in the Earth’s clima

academic.oup.com

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