Xi Yang| 杨曦
@xiyang.bsky.social
Associate Professor at the University of Virginia. Interested in trees and remote sensing. Pl of Plant Ecology and Remote Sensing lab: https://uva.theopenscholar.com/plant-ecology-lab/
Reposted by Xi Yang| 杨曦
Next absurdity: Past or future collaboration with Chinese students and scientists would disqualify American researchers from access to funding. 🧪
#academicsky
#psychscisky
#academicsky
#psychscisky
“The prohibited activities would include joint research, co-authorship on papers, and advising a foreign graduate student or postdoctoral fellow. The language is retroactive, meaning any interactions during the previous 5 years could make a scientist ineligible for future federal funding.”
U.S. Congress considers sweeping ban on Chinese collaborations
Researchers speak out against proposal that would bar funding for U.S. scientists working with Chinese partners or training Chinese students
www.science.org
November 14, 2025 at 1:47 PM
Next absurdity: Past or future collaboration with Chinese students and scientists would disqualify American researchers from access to funding. 🧪
#academicsky
#psychscisky
#academicsky
#psychscisky
Reposted by Xi Yang| 杨曦
What a pleasure to have a great science reporter willing to explore the swamps with us!! Great pre-read for a soon-to-be-out paper from #HenryYeung of the @xiyang.bsky.social lab
Thanks to @xiyang.bsky.social, @drbiogc.bsky.social and the rest of THE LORACS team for having me along to see this important work in action.
October 20, 2025 at 7:35 PM
What a pleasure to have a great science reporter willing to explore the swamps with us!! Great pre-read for a soon-to-be-out paper from #HenryYeung of the @xiyang.bsky.social lab
Reposted by Xi Yang| 杨曦
BREAKING: UVA rejects the Trump Administration's Compact.
October 17, 2025 at 8:40 PM
BREAKING: UVA rejects the Trump Administration's Compact.
Reposted by Xi Yang| 杨曦
In #drylands, plants don’t grow randomly — they self-organize into disordered hyperuniform patterns that help them use water wisely & endure extreme aridity. A beautiful hidden logic of nature, revealed in a new @pnas.org study doi.org/10.1073/pnas... including #Maestrelab alumni
October 8, 2025 at 6:59 AM
In #drylands, plants don’t grow randomly — they self-organize into disordered hyperuniform patterns that help them use water wisely & endure extreme aridity. A beautiful hidden logic of nature, revealed in a new @pnas.org study doi.org/10.1073/pnas... including #Maestrelab alumni
Reposted by Xi Yang| 杨曦
Over the past two years, the land carbon sink appears to have weakened dramatically, driving the largest one year jump in atmospheric CO2 on record in 2024. Is this the end of the land carbon sink? I asked around for @newscientist.com.
One of Earth’s most vital carbon sinks is faltering. Can we save it?
For decades, forest, grasslands and other land ecosystems have collectively absorbed up to a third of the carbon dioxide we emit each year - but this climate buffer may be collapsing far sooner than a...
www.newscientist.com
October 7, 2025 at 9:04 PM
Over the past two years, the land carbon sink appears to have weakened dramatically, driving the largest one year jump in atmospheric CO2 on record in 2024. Is this the end of the land carbon sink? I asked around for @newscientist.com.
Reposted by Xi Yang| 杨曦
AI reveals vast 'ghost forests' along U.S. coast, work by Environmental Sciences PhD student, Henry Yeung.
www.science.org/content/arti...
www.science.org/content/arti...
October 6, 2025 at 9:24 PM
AI reveals vast 'ghost forests' along U.S. coast, work by Environmental Sciences PhD student, Henry Yeung.
www.science.org/content/arti...
www.science.org/content/arti...
Reposted by Xi Yang| 杨曦
Our new perspective on what TLS can (& can't) do in forest research www.nature.com/articles/s41... - led by Eduardo Maeda w lots of great colleagues including @kimcalders.bsky.social @emilyrlines.bsky.social @louiseterryn.bsky.social @benjaminbrede.bsky.social (apols for any I don;t have @ for)
Expanding forest research with terrestrial LiDAR technology - Nature Communications
This Review highlights how terrestrial laser scanning is transforming forest research by enabling highly detailed 3D measurements of trees, supporting applications in forest ecology, carbon monitoring, and biodiversity assessment.
www.nature.com
October 6, 2025 at 3:35 PM
Our new perspective on what TLS can (& can't) do in forest research www.nature.com/articles/s41... - led by Eduardo Maeda w lots of great colleagues including @kimcalders.bsky.social @emilyrlines.bsky.social @louiseterryn.bsky.social @benjaminbrede.bsky.social (apols for any I don;t have @ for)
Reposted by Xi Yang| 杨曦
Good reporting on widespread Douglas-fir mortality in SW Oregon.
I lived on the edge of the Ashland watershed mentioned in the article ca. 2012-2014.
Even then I was seeing patchy mortality from crowding/drought that I knew would get much worse as temps warmed.
I lived on the edge of the Ashland watershed mentioned in the article ca. 2012-2014.
Even then I was seeing patchy mortality from crowding/drought that I knew would get much worse as temps warmed.
Drought and insects have killed an unprecedented number of Oregon’s Douglas fir trees during the last decade, costing billions in timber value, damaging infrastructure and ramping up wildfire danger.
What is Douglas fir dieback? Where is it happening? What is being done? tinyurl.com/5n9amvx6
What is Douglas fir dieback? Where is it happening? What is being done? tinyurl.com/5n9amvx6
October 6, 2025 at 2:13 AM
Good reporting on widespread Douglas-fir mortality in SW Oregon.
I lived on the edge of the Ashland watershed mentioned in the article ca. 2012-2014.
Even then I was seeing patchy mortality from crowding/drought that I knew would get much worse as temps warmed.
I lived on the edge of the Ashland watershed mentioned in the article ca. 2012-2014.
Even then I was seeing patchy mortality from crowding/drought that I knew would get much worse as temps warmed.
Reposted by Xi Yang| 杨曦
I joined a team of ecologists wading through the muck of the Carolina coast in search of "ghost forests" killed by rising seas for @science.org. We were guided by a a new map that reveals millions of dead trees standing along the East Coast, marking an overlooked consequence of climate change...
AI reveals vast ‘ghost forests’ along U.S. coast
Machine learning method counts nearly 12 million dead trees, many likely killed by rising seas
www.science.org
October 1, 2025 at 8:38 PM
I joined a team of ecologists wading through the muck of the Carolina coast in search of "ghost forests" killed by rising seas for @science.org. We were guided by a a new map that reveals millions of dead trees standing along the East Coast, marking an overlooked consequence of climate change...
Reposted by Xi Yang| 杨曦
Based on this research by Henry Yeung et al.
www.researchsquare.com/article/rs-6...
www.researchsquare.com/article/rs-6...
Overlooked and extensive ghost forest formation across the US Atlantic coast
Rising sea levels have driven widespread coastal tree die-off, forming large swaths of ghost forests. While reports of coastal forest loss are accumulating, its true severity and factors determining t...
www.researchsquare.com
October 1, 2025 at 8:38 PM
Based on this research by Henry Yeung et al.
www.researchsquare.com/article/rs-6...
www.researchsquare.com/article/rs-6...
Reposted by Xi Yang| 杨曦
Some ghosts captured on camera:
October 1, 2025 at 8:38 PM
Some ghosts captured on camera:
Thanks to @jamesdinneen.bsky.social for writing this article published in @science.org today!
I joined a team of ecologists wading through the muck of the Carolina coast in search of "ghost forests" killed by rising seas for @science.org. We were guided by a a new map that reveals millions of dead trees standing along the East Coast, marking an overlooked consequence of climate change...
AI reveals vast ‘ghost forests’ along U.S. coast
Machine learning method counts nearly 12 million dead trees, many likely killed by rising seas
www.science.org
October 1, 2025 at 9:09 PM
Thanks to @jamesdinneen.bsky.social for writing this article published in @science.org today!
Reposted by Xi Yang| 杨曦
Reposted by Xi Yang| 杨曦
Electricity now costs 267% more (!!) for 1 month vs. what it cost 5 years ago near data center hotspots. Awesome reporting from Josh Saul @dinabass.bsky.social Leonardo Nicoletti @naurtorious.bsky.social Demetrios Pogkas (gift link) www.bloomberg.com/graphics/202...
AI Data Centers Are Sending Power Bills Soaring
Wholesale electricity costs as much as 267% more than it did five years ago in areas near data centers. That’s being passed on to customers.
www.bloomberg.com
September 29, 2025 at 10:26 PM
Electricity now costs 267% more (!!) for 1 month vs. what it cost 5 years ago near data center hotspots. Awesome reporting from Josh Saul @dinabass.bsky.social Leonardo Nicoletti @naurtorious.bsky.social Demetrios Pogkas (gift link) www.bloomberg.com/graphics/202...
Reposted by Xi Yang| 杨曦
We mourn the passing of our Editor-in-Chief Steve Long.
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
September 18, 2025 at 6:32 PM
We mourn the passing of our Editor-in-Chief Steve Long.
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
His vision to establish one of the first journals dedicated to Global Change over 30 years ago was truly ahead of its time. Through GCB, researchers have demonstrated that biology and ecosystems are not simply victims of global change..
Reposted by Xi Yang| 杨曦
I'm happy to share a paper in Science Advances that makes the case for a weak land carbon sink, drawing upon JPL and Chloris biomass time series. To close the budget with a net land sink of 0.8 Pg C/y from 2000-2019, we propose increases in the ocean sink and decreases in fossil fuel emissions.
September 10, 2025 at 8:01 PM
I'm happy to share a paper in Science Advances that makes the case for a weak land carbon sink, drawing upon JPL and Chloris biomass time series. To close the budget with a net land sink of 0.8 Pg C/y from 2000-2019, we propose increases in the ocean sink and decreases in fossil fuel emissions.
Amazing dataset!!! I can imagine a lot of new findings in the coming years as a result of this effort. Kudos to the team!
A great effort! Can't do this kind of thing without help from so many collaborators & support from @uclgeography.bsky.social @nceoscience.bsky.social, CEDA colleagues @forestplots.bsky.social among others.
🚀Super proud of our ForestScan x ESA paper supporting BIOMASS cal/val! Huge dataset: TLS, UAV, ALS + tree census, on CEDA. Includes protocol recs & FBRMS site guidance. A benchmark for EO data sharing! 📡🌳 Preprint: essd.copernicus.org/preprints/es... #UCLGeog #OpenScience #LiDAR #BIOMASS #ForestScan
September 12, 2025 at 12:18 AM
Amazing dataset!!! I can imagine a lot of new findings in the coming years as a result of this effort. Kudos to the team!
Reposted by Xi Yang| 杨曦
Postdoctoral position in Forest Monitoring available. Know your way around spatial datasets? Join us to help monitor changes in Australia's precious forest estate! @westsyduhie.bsky.social
jobs.smartrecruiters.com/WesternSydne...
jobs.smartrecruiters.com/WesternSydne...
Postdoctoral Research Fellow in Forest Monitoring
Company Description: Western Sydney University is a modern, forward-thinking, research-led institution at the heart of Australia’s fastest-growing and most economically significant region. With 11 cam...
jobs.smartrecruiters.com
September 9, 2025 at 12:08 PM
Postdoctoral position in Forest Monitoring available. Know your way around spatial datasets? Join us to help monitor changes in Australia's precious forest estate! @westsyduhie.bsky.social
jobs.smartrecruiters.com/WesternSydne...
jobs.smartrecruiters.com/WesternSydne...
Reposted by Xi Yang| 杨曦
Relevant to the #PRC10 audience.
@biologyopen.bsky.social combines paying reviewers with contracts requiring high quality reviews with a deadline, turnaround dropped from 35 to 7 days with no decrease in quality. Contracts are the difference? Sorry this wasn't mentioned at the meeting journals.biologists.com/bio/pages/fa...
September 5, 2025 at 1:08 AM
Relevant to the #PRC10 audience.
Reposted by Xi Yang| 杨曦
Katrina Bennett, Hydrologist, Los Alamos National Laboratory
Hosted By: Howie Epstein & Xi Yang
“Improved subgrid distribution of snow-shrub-permafrost interactions in the Arctic”
Thursday, September 4th, 2025
3:30 PM-4:30PM, Clark 108
Hosted By: Howie Epstein & Xi Yang
“Improved subgrid distribution of snow-shrub-permafrost interactions in the Arctic”
Thursday, September 4th, 2025
3:30 PM-4:30PM, Clark 108
September 4, 2025 at 4:17 PM
Katrina Bennett, Hydrologist, Los Alamos National Laboratory
Hosted By: Howie Epstein & Xi Yang
“Improved subgrid distribution of snow-shrub-permafrost interactions in the Arctic”
Thursday, September 4th, 2025
3:30 PM-4:30PM, Clark 108
Hosted By: Howie Epstein & Xi Yang
“Improved subgrid distribution of snow-shrub-permafrost interactions in the Arctic”
Thursday, September 4th, 2025
3:30 PM-4:30PM, Clark 108
Reposted by Xi Yang| 杨曦
Happy to share a new lab @jgrbiogeo.bsky.social paper: "Drought Response in Three Conifer Species Detected by Sap Flow and Proximal Thermal Remote Sensing" led by the amazing Daphna Uni w/ @mostafaj.bsky.social others @uarizona.bsky.social agupubs.onlinelibrary.wiley.com/doi/10.1029/...
September 2, 2025 at 5:01 PM
Happy to share a new lab @jgrbiogeo.bsky.social paper: "Drought Response in Three Conifer Species Detected by Sap Flow and Proximal Thermal Remote Sensing" led by the amazing Daphna Uni w/ @mostafaj.bsky.social others @uarizona.bsky.social agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Reposted by Xi Yang| 杨曦
I like big trees and I cannot lie. Great bit of work by @kimcalders.bsky.social @louiseterryn.bsky.social and colleagues using innovative climbing and scanning approach. Stunning illustration of tree structural and biodiversity complexity zslpublications.onlinelibrary.wiley.com/doi/full/10....
Integrating terrestrial and canopy laser scanning for comprehensive analysis of large old trees: Implications for single tree and biodiversity research
Canopy laser scanning (CLS) enhances 3D measurements of large trees by lifting laser scanners into the canopy. Combining CLS with terrestrial laser scanning improves point cloud precision, reduces oc...
zslpublications.onlinelibrary.wiley.com
September 3, 2025 at 10:02 AM
I like big trees and I cannot lie. Great bit of work by @kimcalders.bsky.social @louiseterryn.bsky.social and colleagues using innovative climbing and scanning approach. Stunning illustration of tree structural and biodiversity complexity zslpublications.onlinelibrary.wiley.com/doi/full/10....
Reposted by Xi Yang| 杨曦
Good news for a change: Background mortality in unmanaged forests of Europe has not increased over past decades. Great work from the European Forest Reserve Initiative EuFoRIa, out in @journalofecology.bsky.social doi.org/10.1111/1365...
September 2, 2025 at 1:42 PM
Good news for a change: Background mortality in unmanaged forests of Europe has not increased over past decades. Great work from the European Forest Reserve Initiative EuFoRIa, out in @journalofecology.bsky.social doi.org/10.1111/1365...
Reposted by Xi Yang| 杨曦
Trump admin planning to change student visas from lasting for duration of academic program to fixed 4-yr term, and then much harder to renew
Could destroy US ability to attract global talent, particularly those seeking advanced degrees in STEM. The median time to complete a PhD is 5.7 yrs per NSF.
Could destroy US ability to attract global talent, particularly those seeking advanced degrees in STEM. The median time to complete a PhD is 5.7 yrs per NSF.
Trump Deals A New Immigration Blow To International Students
Trump officials have proposed a new rule limiting international students to fixed periods of entry, making a U.S. education more precarious.
www.forbes.com
August 29, 2025 at 10:52 AM
Trump admin planning to change student visas from lasting for duration of academic program to fixed 4-yr term, and then much harder to renew
Could destroy US ability to attract global talent, particularly those seeking advanced degrees in STEM. The median time to complete a PhD is 5.7 yrs per NSF.
Could destroy US ability to attract global talent, particularly those seeking advanced degrees in STEM. The median time to complete a PhD is 5.7 yrs per NSF.
Reposted by Xi Yang| 杨曦
Professor Susanne von Caemmerer FRS and Professor Graham Douglas Farquhar FRS are jointly awarded the Royal Medal (Biological) 2025 for refining the ways we monitor and model photosynthesis in leaves from molecular to global scales. #RSMedals https://royalsociety.org/medals-and-prizes/royal-medals/
August 28, 2025 at 10:30 AM
Professor Susanne von Caemmerer FRS and Professor Graham Douglas Farquhar FRS are jointly awarded the Royal Medal (Biological) 2025 for refining the ways we monitor and model photosynthesis in leaves from molecular to global scales. #RSMedals https://royalsociety.org/medals-and-prizes/royal-medals/