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  2. Dr Kadmiel Maseyk

Dr Kadmiel Maseyk

Profile summary

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Research interests

I am a plant ecophysiologist interested in how plant function affects ecosystem carbon and water biogeochemistry. I have a stong interest in plant and ecosystem responses to environmental variability and global change processes. My work is predominantly field based, and has covered environments from the poles to the tropics.

Externally funded projects

TreeView: developing new capacity for the remote sensing of UK trees and forests
RoleStart dateEnd dateFunding source
Lead01 Nov 202031 Mar 2021UKSA UK Space Agency

Tree and forest climate interactions are fundamental to a sustainable future and societal wellbeing. Trees are at the heart of the current political discourse, and the UK government is preparing to launch a strategy to accelerate tree planting and improve the management of existing trees and woodlands. The world is becoming increasingly urbanised, and urban trees are well recognised for their environmental, health and wellbeing benefits. Trees across the rural and urban landscape are going to play a central role as we move towards a net-zero emissions economy. The ability to measure, monitor and map the health and status of the UK’s trees is therefore essential to the UK’s future treescape and urban green infrastructure. Currently, tree identification can be achieved with high spatial resolution panchromatic imagery, but we need to go beyond this. We need to be able to not only map species within mixed assemblages, but also characterise the health and size of the trees. Furthermore, we need to be able to measure the particular configurations of urban environments and the small-scale but widespread plantings that are likely to feature prominently in planting programmes. Importantly, we need to be able to monitor changes over time – to quantify carbon sequestration; assess vulnerability and detect the onset of climatic stress or disease outbreak to facilitate early intervention; and to measure the success and monitor compliance of tree planting programmes. This requires going to the spatial scale of tree crowns but capturing the spectral information that will provide the information for classification and characterisation. Advances in both sensors and process understanding is closing the gap between canopy reflectance properties and its functional meaning, opening the possibility of detailed studies at the scale of individual trees and their responses to global change from space. Species identification and mapping has been demonstrated from airborne hyperspectral sensors, enabling species mapping across forests and urban areas. In this project we will push the limits of leading CMOS TDI sensors and optimise system configuration to develop a new platform for the classification, characterisation and monitoring of trees across urban and rural landscapes. Band selection will provide information on both plant health and will feed into classification algorithms developed from extensive ground truthing data. In this pathfinder phase of the project, our objectives are to (could include): 1. Refine band selection based on key vegetation characterisation indices and sensor constraints (from starting point of bands a,b,..f) 2. Develop classification algorithms from airborne hyperspectral data and extensive ground-truthing data sets. 3. Collect new airborne data specifically for one target market: railways 4. Produce the system requirements document for TreeView 5. Produce the mission requirements document for TreeView 6. Perform market analysis of end users across local and national government, commercial and research sectors

[SPRINT] High spatial and spectral resolution tree mapping and identification
RoleStart dateEnd dateFunding source
Lead01 May 202030 Apr 2021Research England

We will combine measurements across scales from ground-level, UAV and airborne platforms of urban and woodland environments. Using high-resolution imaging and non-imaging spectroscopy we will develop training data for the identification and physiological characterisation of tree species in both urban and non-urban environments. The ultimate goal is to develop an approach that can be applied to emerging very high resolution satellite platforms for monitoring trees and forests from space.

The impact of hydrological change on carbon fluxes and soil bacterial biomass in a species-rich calcareous grassland
RoleStart dateEnd dateFunding source
Lead03 Jul 201725 Aug 2017NERC Natural Environment Research Council

This is a summer student project, under the NERC Research Experience Placement (REP) scheme. The aim of this project is to investigate the impact of the different hydrological treatments on soil microbial biomass and soil-atmosphere carbon fluxes at the RainDrop experimental site. The primary hypotheses the student will be tasked with testing are: 1) CO2 production decreases under the drier and increases under the wetter conditions; 2) methane uptake increases under the drier and decreases under the wetter conditions; and 3) CO2 fluxes are coupled to and methane fluxes decoupled from changes in microbial biomass carbon. The rationale underlying these hypotheses is that the well understood response of soil respiration to soil moisture is associated with changes in total microbial abundance in this system, as opposed to inactivation of the communities, and that methane uptake increases with drought due to greater porosity of dry soil and reduces under wetter conditions due to diffusive limitations and methanogenisis at anoxic sites in the wet soil.

Methane Production in the Arctic: Under-recognized Cold Season and Upland Tundra- Arctic Methane Sources-UAMS
RoleStart dateEnd dateFunding source
Co-investigator01 Jul 201728 Feb 2021NERC Natural Environment Research Council

This project will refine understanding of the current magnitude of methane emissions from the Arctic. In particular, emphasis will be placed on the processes currently under- represented and poorly understood in concerning Arctic methane (CH4) balance. These are: a) the role, magnitude, and processes where by methane is released from non-inundated tundra or “dry tundra” and b) the role of cold season in annual CH4 emissions. The project will incorporate this new understanding in three major models JULES, LPJ, and TCF. Special emphasis will be placed on understanding processes including how, despite much conventional wisdom, poorly inundated tundra can be a major source of Arctic methane emissions, in some cases greater than those of inundated tundra. The overarching objective is to improve our ability to estimate current and predict future CH4 fluxes in the Arctic by improving understanding of the temporal and spatial control on CH4 flux.

Climate Change Impacts on a Calcereous Grassland
RoleStart dateEnd dateFunding source
Lead01 Nov 201531 Oct 2020ECT Ecological Continuity Trust

Understanding the impacts of climate change on sensitive and high-conservation value ecosystems is key for their successful management and provision of ecosystem services. This project will establish a large field-based experimental facility to investigate the impacts of changing hydrological regimes on a calcareous grassland. The experimental set-up involves the construction of up to 16 large rain-shelters, combined with irrigation systems, to apply both drought and wetting treatments to a grassland ecosystem at the Upper Seeds experimental site, Wytham, Oxford. Planned as a platform for long-term ecological experiments, it will host over time a number of research projects from different institutions, with a PhD project from the OU and a DroughtNet-linked project from Oxford due to start field work in spring 2016. This bid is to finalise the construction of the shelters, following prototype trials at the OU. Funds have already been secured for shelter construction from the Patsy Wood Trust through the ECT; decisions on the initial number and time-frame for remaining shelter construction are required for this stage. This project is the continuation of an earlier project initiated by Jonathan Silvertown under budget code HGSE 4240 C4509.


Review of Macadamia Production in Malawi: Focusing on What, Where, How Much Is Produced and Major Constraints (2021-02-12)
Zuza, Emmanuel Junior; Maseyk, Kadmiel; Bhagwat, Shonil; Emmott, Andrew; Rawes, Will and Araya, Yoseph Negusse
Agriculture, 11, Article e152(2)

Teaching and learning in ecology: a horizon scan of emerging challenges and solutions (2021-01)
Cooke, Julia; Araya, Yoseph; Bacon, Karen L.; Bagniewska, Joanna M.; Batty, Lesley; Bishop, Tom R.; Burns, Moya; Charalambous, Magda; Daversa, David R.; Dougherty, Liam R.; Dyson, Miranda; Fisher, Adam M.; Forman, Dan; Garcia, Cristina; Harney, Ewan; Hesselberg, Thomas; John, Elizabeth A; Knell, Rob; Maseyk, Kadmiel; Mauchline, Alice L.; Peacock, Julie; Pernetta, Angelo P.; Pritchard, Jeremy; Sutherland, William J.; Thomas, Rebecca L.; Tigar, Barbara; Wheeler, Philip; White, Rachel L.; Worsfold, Nicholas T. and Lewis, Zenobia
Oikos, 130(1) (pp. 15-28)

COSORE: A community database for continuous soil respiration and other soil‐atmosphere greenhouse gas flux data (2020-10-07)
Bond‐Lamberty, Ben; Christianson, Danielle S.; Malhotra, Avni; Pennington, Stephanie C.; Sihi, Debjani; AghaKouchak, Amir; Anjileli, Hassan; Altaf Arain, M.; Armesto, Juan J.; Ashraf, Samaneh; Ataka, Mioko; Baldocchi, Dennis; Andrew Black, Thomas; Buchmann, Nina; Carbone, Mariah S.; Chang, Shih‐Chieh; Crill, Patrick; Curtis, Peter S.; Davidson, Eric A.; Desai, Ankur R.; Drake, John E.; El‐Madany, Tarek S.; Gavazzi, Michael; Görres, Carolyn‐Monika; Gough, Christopher M.; Goulden, Michael; Gregg, Jillian; Gutiérrez del Arroyo, Omar; He, Jin‐Sheng; Hirano, Takashi; Hopple, Anya; Hughes, Holly; Järveoja, Järvi; Jassal, Rachhpal; Jian, Jinshi; Kan, Haiming; Kaye, Jason; Kominami, Yuji; Liang, Naishen; Lipson, David; Macdonald, Catriona A.; Maseyk, Kadmiel; Mathes, Kayla; Mauritz, Marguerite; Mayes, Melanie A.; McNulty, Steve; Miao, Guofang; Migliavacca, Mirco; Miller, Scott; Miniat, Chelcy F.; Nietz, Jennifer G.; Nilsson, Mats B.; Noormets, Asko; Norouzi, Hamidreza; O’Connell, Christine S.; Osborne, Bruce; Oyonarte, Cecilio; Pang, Zhuo; Peichl, Matthias; Pendall, Elise; Perez‐Quezada, Jorge F.; Phillips, Claire L.; Phillips, Richard P.; Raich, James W.; Renchon, Alexandre A.; Ruehr, Nadine K.; Sánchez‐Cañete, Enrique P.; Saunders, Matthew; Savage, Kathleen E.; Schrumpf, Marion; Scott, Russell L.; Seibt, Ulli; Silver, Whendee L.; Sun, Wu; Szutu, Daphne; Takagi, Kentaro; Takagi, Masahiro; Teramoto, Munemasa; Tjoelker, Mark G.; Trumbore, Susan; Ueyama, Masahito; Vargas, Rodrigo; Varner, Ruth K.; Verfaillie, Joseph; Vogel, Christoph; Wang, Jinsong; Winston, Greg; Wood, Tana E.; Wu, Juying; Wutzler, Thomas; Zeng, Jiye; Zha, Tianshan; Zhang, Quan and Zou, Junliang
Global Change Biology ((Early Access))

Complexity revealed in the greening of the Arctic (2020-02)
Myers-Smith, Isla H.; Kerby, Jeffrey T.; Phoenix, Gareth K.; Bjerke, Jarle W.; Epstein, Howard E.; Assmann, Jakob J.; John, Christian; Andreu-Hayles, Laia; Angers-Blodin, Sandra; Beck, Pieter S. A.; Berner, Logan T.; Bhatt, Uma S.; Bjorkman, Anne D.; Blok, Daan; Bryn, Anders; Christiansen, Casper T.; Cornelissen, J. Hans C.; Cunliffe, Andrew M.; Elmendorf, Sarah C.; Forbes, Bruce C.; Goetz, Scott J.; Hollister, Robert D.; de Jong, Rogier; Loranty, Michael M.; Macias-Fauria, Marc; Maseyk, Kadmiel; Normand, Signe; Olofsson, Johan; Parker, Thomas C.; Parmentier, Frans-Jan W.; Post, Eric; Schaepman-Strub, Gabriela; Stordal, Frode; Sullivan, Patrick F.; Thomas, Haydn J. D.; Tømmervik, Hans; Treharne, Rachael; Tweedie, Craig E.; Walker, Donald A.; Wilmking, Martin and Wipf, Sonja
Nature Climate Change, 10 (pp. 106-117)

Unmanned Aerial Systems (UAS)-Based Methods for Solar Induced Chlorophyll Fluorescence (SIF) Retrieval with Non-Imaging Spectrometers: State of the Art (2020)
Vargas, Juan Quirós; Bendig, Juliane; Mac Arthur, Alasdair; Burkart, Andreas; Julitta, Tommaso; Maseyk, Kadmiel; Thomas, Rick; Siegmann, Bastian; Rossini, Micol; Celesti, Marco; Schüttemeyer, Dirk; Kraska, Thorsten; Muller, Onno and Rascher, Uwe
Remote Sensing, 12, Article 1624(10)

Quantification of leaf-scale light energy allocation and photoprotection processes in a Mediterranean pine forest under extensive seasonal drought (2019-10)
Maseyk, Kadmiel; Lin, Tongbao; Cochavi, Amnon; Schwartz, Amnon and Yakir, Dan
Tree Physiology, 39(10) (pp. 1767-1782)

Influences of light and humidity on carbonyl sulfide-based estimates of photosynthesis (2019-02-12)
Kooijmans, Linda M. J.; Sun, Wu; Aalto, Juho; Erkkilä, Kukka-Maaria; Maseyk, Kadmiel; Seibt, Ulrike; Vesala, Timo; Mammarella, Ivan and Chen, Huilin
Proceedings of the National Academy of Sciences, 116(7) (pp. 2470-2475)

Reviews and syntheses: Carbonyl sulfide as a multi-scale tracer for carbon and water cycles (2018-06-18)
Whelan, Mary E.; Lennartz, Sinikka T.; Gimeno, Teresa E.; Wehr, Richard; Wohlfahrt, Georg; Wang, Yuting; Kooijmans, Linda M. J.; Hilton, Timothy W.; Belviso, Sauveur; Peylin, Philippe; Commane, Róisín; Sun, Wu; Chen, Huilin; Kuai, Le; Mammarella, Ivan; Maseyk, Kadmiel; Berkelhammer, Max; Li, King-Fai; Yakir, Dan; Zumkehr, Andrew; Katayama, Yoko; Ogée, Jérôme; Spielmann, Felix M.; Kitz, Florian; Rastogi, Bharat; Kesselmeier, Jürgen; Marshall, Julia; Erkkilä, Kukka-Maaria; Wingate, Lisa; Meredith, Laura K.; He, Wei; Bunk, Rüdiger; Launois, Thomas; Vesala, Timo; Schmidt, Johan A.; Fichot, Cédric G.; Seibt, Ulli; Saleska, Scott; Saltzman, Eric S.; Montzka, Stephen A.; Berry, Joseph A. and Campbell, J. Elliott
Biogeosciences, 15(12) (pp. 3625-3657)

Stomatal control of leaf fluxes of carbonyl sulfide and CO2 in a Typha freshwater marsh (2018-06-04)
Sun, Wu; Maseyk, Kadmiel; Lett, Céline and Seibt, Ulli
Biogeosciences, 15(11) (pp. 3277-3291)

Soil fluxes of carbonyl sulfide (COS), carbon monoxide, and carbon dioxide in a boreal forest in southern Finland (2018-02-01)
Sun, Wu; Kooijmans, Linda M. J.; Maseyk, Kadmiel; Chen, Huilin; Mammarella, Ivan; Vesala, Timo; Levula, Janne; Keskinen, Helmi and Seibt, Ulli
Atmospheric Chemistry and Physics, 18(2) (pp. 1363-1378)

Assessing a New Clue to How Much Carbon Plants Take Up (2017-07-05)
Campbell, J. Elliott; Kesselmeier, Jürgen; Yakir, Dan; Berry, Joe A.; Peylin, Philippe; Belviso, Sauveur; Vesala, Timo; Maseyk, Kadmiel; Seibt, Ulrike; Chen, Huilin; Whelan, Mary E.; Hilton, Timothy W.; Montzka, Stephen A.; Berkelhammer, Max B.; Lennartz, Sinikka T.; Kuai, Le; Wohlfahrt, Georg; Wang, Yuting; Blake, Nicola J.; Blake, Donald R.; Stinecipher, James; Baker, Ian and Sitch, Stephen
Eos, 98

Canopy uptake dominates nighttime carbonyl sulfide fluxes in a boreal forest (2017)
Kooijmans, Linda M. J.; Maseyk, Kadmiel; Seibt, Ulli; Sun, Wu; Vesala, Timo; Mammarella, Ivan; Kolari, Pasi; Aalto, Juho; Franchin, Alessandro; Vecchi, Roberta; Valli, Gianluigi and Chen, Huilin
Atmospheric Chemistry and Physics, 17(18) (pp. 11453-11465)

Resilience to seasonal heat wave episodes in a Mediterranean pine forest (2016-04)
Tatarinov, Fedor; Rotenberg, Eyal; Maseyk, Kadmiel; Ogée, Jérôme; Klein, Tamir and Yakir, Dan
New Phytologist, 210(2) (pp. 485-496)

Litter dominates surface fluxes of carbonyl sulfide in a Californian oak woodland (2016-02)
Sun, Wu; Maseyk, Kadmiel; Lett, Céline and Seibt, Ulli
Journal of Geophysical Research: Biogeosciences, 121(2) (pp. 438-450)

A soil diffusion–reaction model for surface COS flux: COSSM v1 (2015-10-02)
Sun, W.; Maseyk, K.; Lett, C. and Seibt, U.
Geoscientific Model Development, 8(10) (pp. 3055-3070)

Sources and sinks of carbonyl sulfide in an agricultural field in the Southern Great Plains (2014-06-24)
Maseyk, Kadmiel; Berry, Joseph A.; Billesbach, Dave; Campbell, John Elliott; Torn, Margaret S.; Zahniser, Mark and Seibt, Ulli
Proceedings of the National Academy of Sciences, 111(25) (pp. 9064-9069)

Growing season eddy covariance measurements of carbonyl sulfide and CO2 fluxes: COS and CO2 relationships in Southern Great Plains winter wheat (2014-01-15)
Billesbach, D.P.; Berry, J.A.; Seibt, U.; Maseyk, K.; Torn, M.S.; Fischer, M.L.; Abu-Naser, Mohammad and Campbell, J.E.
Agricultural and Forest Meteorology, 184 (pp. 48-55)

High Arctic wetting reduces permafrost carbon feedbacks to climate warming (2014)
Lupascu, M.; Welker, J. M.; Seibt, U.; Maseyk, K.; Xu, X. and Czimczik, C. I.
Nature Climate Change, 4(1) (pp. 51-55)

Broadcasting from the field: enabling student-led investigations by distance (2020)
Cooke, Julia; Wheeler, Philip; Maseyk, Kadmiel; Davies, Sarah-Jane; Collins, Trevor; Bradshaw, Kate; Hawkridge, Ben; Valentine, Chris and Morgan, Gwyneth
In : Enhancing Fieldwork Learning 2020 (8 Sep 2020, Online, United Kingdom)

Live, interactive fieldcasts: How flexible and robust is our technology and teaching design to multiple changes? (2019)
Cooke, Julia; Wheeler, Philip; Maseyk, Kadmiel; Davies, Sarah and Collins, Trevor
In : The 8 th eSTEeM Annual Conference 2019 - STEM Scholarship: From Inquiry to Implementation (8-9 May 2019, The Open University, Milton Keynes, UK)

Drone Measurements of Solar-Induced Chlorophyll Fluorescence Acquired with a Low-Weight DFOV Spectrometer System (2018)
Atherton, J.; MacArthur, A.; Hakala, T.; Maseyk, K.; Robinson, I.; Liu, W.; Honkavaara, E. and Porcar-Castell, A.
In : International Geoscience and Remote Sensing Symposium (IGARSS 2018) (22-27 Jul 2018, Valencia, Spain) (pp. 8834-8836)

Investigating Forest Photosynthetic Response to Elevated CO2 Using Uav-Based Measurements of Solar Induced Fluorescence (2018)
Maseyk, Kadmiel; Atherton, Jon; Thomas, Rick; Wood, Kieran; Tausz-Posch, Sabine; Mac Arthur, Alasdair; Porcar-Castell, Albert and Tausz, Michael
In : IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium (22-27 Jul 2018, Valencia, Spain) (pp. 8830-8833)

Widening access to fieldwork for large numbers of students with interactive livecasts (2018)
Cooke, Julia; Wheeler, Phil; Collins, Trevor; Maseyk, Kadmiel and Davies, Sarah
In : Enhancing Fieldwork Learning Showcase 2018 (3-4 Sep 2018, University of Leeds, Leeds, United Kingdom)

Live field broadcasts: Moving from optional additions to required assessment (2018)
Collins, Trevor; Cooke, Julia; Wheeler, Philip; Maseyk, Kadmiel and Robson, Julie
In : The 7th eSTEeM Annual Conference 2018 - STEM Futures: Delivering Excellence Through Scholarship (25-26 Apr 2018, The Open University, Milton Keynes, UK)

Evaluating remote access to fieldwork with interactive fieldcasts for distance learning students (2017)
Robson, Julie; Cooke, Julia; Wheeler, Philip; Maseyk, Kadmiel and Collins, Trevor
In : The 6th eSTEeM Annual Conference (25-26 Apr 2017, The Open University, Walton Hall, Milton Keynes)

Widening access to fieldwork with interactive livecasts (2016-09)
Cooke, Julia; Wheeler, Philip; Maseyk, Kadmiel and Collins, Trevor
In : Enhancing Fieldwork Learning Showcase 2016 (12-13 Sep 2016, Reading, UK)