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Joseph Holden

@prof-joseph-holden.bsky.social

Chair of Physical Geography, University of Leeds. Director of water@leeds. Director of NERC UK freshwater quality research programme. Peatlands, hydrology, carbon cycling, soil carbon, land management, flooding, agriculture & water, forest cover change

129 Followers  |  62 Following  |  16 Posts  |  Joined: 21.11.2024  |  1.6981

Latest posts by prof-joseph-holden.bsky.social on Bluesky

New fully-funded PhD project working on flooding, climate change, catastrophe modelling and the re-insurance industry: unrisk-cdt.ac.uk/projects/cli... Work with @floodre.bsky.social Erica Thompson and I.

03.10.2025 15:08 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Alley width and slope position influence soil carbon storage, nutrient dynamics and hydrology at a mature silvoarable site, SW England Optimising benefits from agroforestry requires better understanding of spatial factors such as alley width and slope position. We sampled soil (0–50Β c…

Our new free to access paper from Josiah Judson's PhD showing how alley width and slope position of agroforestry trees in the UK influence soil functioning www.sciencedirect.com/science/arti... @pippachapmn.bsky.social @researchleeds.bsky.social @envleeds.bsky.social

03.10.2025 14:20 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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A Coupled Hydrological‐Hydrodynamic Modelling Approach for Assessing the Impacts of Multiple Natural Flood Management Interventions on Downstream Flooding While natural flood management (NFM) as a flood mitigation strategy is becoming widely used, there remains a lack of evidence regarding the effectiveness of different NFM scenarios under high flow ev...

Third paper from Qiuyu Zhu's PhD now out. Qiuyu coupled Spatially Distributed TOPMODEL to a hydrodynamic model to see how different NFM techniques interact. This allows us to study flood effects at larger catchment scales. Free access here: onlinelibrary.wiley.com/doi/10.1111/...

29.09.2025 18:41 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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The Sponge Analogy Problem: Moving Towards Clearer Communication of Peatland Hydrological Processes Correctly communicating peatland hydrology.

We shouldn't say peatlands act as sponges...but they can slow flow and dampen droughts. Our new paper led by Kirsten Lees onlinelibrary.wiley.com/doi/pdf/10.1...

@peatofmind.bsky.social @peatymike.bsky.social @em-shuttleworth.bsky.social @andybairdj.bsky.social @researchleeds.bsky.social

25.09.2025 16:07 β€” πŸ‘ 31    πŸ” 9    πŸ’¬ 2    πŸ“Œ 0
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A solutions-focussed operational model to connect catchment water research to environmental resilience Nature Water - A transferable and operational model involving cross-sector collaborations, transdisciplinary project co-design and translation of cutting-edge research, has unlocked integrated...

Read our article published in Nature Water about what has made our Yorkshire Integrated Catchment Solutions Programme @yorkshireicasp.bsky.social such a success. Free access here: rdcu.be/eHWAM @springernature.com @researchleeds.bsky.social @envleeds.bsky.social

24.09.2025 14:06 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Fab work by our PhD student Resti Salmayenti who has published her first thesis paper in Environmental Research Letters showing how drainage and land cover interact to affect fire occurrence in Indonesian peatlands. Our paper is open access here: iopscience.iop.org/article/10.1...

02.07.2025 20:59 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Recent Forest Loss in the Brazilian Amazon Causes Substantial Reductions in Dry Season Precipitation Recent forest loss (3.2%) in the Brazilian Amazon causes a mean 5.4% reduction in dry season precipitation 76.9% of reduced precipitation is due to decreased nonlocal water vapor, not local evapo...

Great work by our PhD student Yu Liu who has shown in AGU Advances that recent forest loss in the Brazilian Amazon causes substantial reductions in dry season precipitation. Open access here: agupubs.onlinelibrary.wiley.com/doi/full/10....

02.07.2025 20:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Wetland fragmentation is strongly associated with high population densities. African wetlands store an estimated 54 ± 11 Gt of carbon (surpassing Europe’s 12–31 Gt). If drained, they could release 260 MtC / yr, nearly ten times the carbon sequestration of pristine wetlands (27 MtC /yr).

02.07.2025 20:47 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Wetland fragmentation associated with large populations across Africa - Nature Communications This study presents a map of wetland extent for the whole of Africa at 10 m resolution. A strong link was found between broken up wetlands and human population density. Such fragmented wetlands could ...

Our paper in Nature Communications presents a new 10 metre resolution map of wetlands across Africa. The work was done through Sani Garba's PhD study and provides an excellent basis for future analysis and conservation. The paper is open access www.nature.com/articles/s41...

02.07.2025 20:45 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Female zebrafish are more affected than males under polystyrene microplastics exposure Microplastics are ubiquitous in freshwater and can be absorbed into fish skin and gills, accumulate in the gut, and be transported to other tissues, t…

New paper published from my PhD student Di Wu showing that polystyrene microplastic pollution adversely impacts female zebrafish more than males www.sciencedirect.com/science/arti... @carterlj.bsky.social Free version here if you have a paywall: eprints.whiterose.ac.uk/220647/

22.12.2024 21:04 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
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A Quantitative Review of Natural Flood Management Research A quantitative review of themes covered by previous studies on natural flood management and nature-based solutions including an assessment of the impact of natural flood management on flood peaks by ....

Nice new open access paper from my PhD student Qiuyu Zhu on science of natural flood management over last 30 years showing good evidence for both continued investment in NFM and in research to optimise NFM actions wires.onlinelibrary.wiley.com/doi/10.1002/...

15.12.2024 12:20 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Quantifying the role of land cover in β€˜slowing the flow’ for flood risk reduction in a changing climate – Understanding Uncertainty to Reduce Climate Risks

We welcome applications for this great project on flooding: unrisk-cdt.ac.uk/projects/qua... Deadline 13 January 2025.

27.11.2024 12:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Understanding Uncertainty to Reduce Climate Risks – NERC Centre for Doctoral Training

Check out our new UK NERC-funded doctoral training centre in climate change uncertainty and risk - funded projects now available for applicants: unrisk-cdt.ac.uk Hosted by University of Leeds in collaboration with Exeter and UCL

27.11.2024 12:33 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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The impact of a wind farm on carbon emissions from peat - Yorkshire Environmental Sciences β€’ Doctoral Training Network How do wind farms impact on carbon cycling in peatlands? Investigate carbon emissions in air and water from a recently constructed wind farm on Shetland.

New fully funded PhD project available on peatland windfarms and carbon impacts from disturbance supervised by @catmoody.bsky.social and I yes-dtn.ac.uk/research/the... Deadline for applications = 8 January 2025

26.11.2024 11:20 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Job Opportunity at University of Leeds: Research Fellow in Peatland Monitoring Data Research Fellow in Peatland Monitoring DataΒ Salary: Grade 7 (Β£39,105 – Β£46,485 p.a. depending on experience)Β This role will be based on the university campus, with scope for it to be undertaken in a h...

A few hours left to apply for a peatland research fellow position with us: jobs.leeds.ac.uk/vacancy.aspx...

22.11.2024 12:37 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Microbial and mineral interactions decouple litter quality from soil organic matter formation Nature Communications - This study challenges the hypothesis that high-quality plant litters form stable, mineral-associated soil organic carbon most efficiently, providing evidence that...

Our new paper out in Nature Communications led by Dafydd Elias sheds new light on how plant litter, microbes & soil minerals interact to develop mineral-associated soil organic carbon = crucial for long-term soil C storage rdcu.be/d0T4Q @natureportfolio.bsky.social @universityofleeds.bsky.social

21.11.2024 23:12 β€” πŸ‘ 34    πŸ” 10    πŸ’¬ 0    πŸ“Œ 1

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