Eric Casella, MSc, PhD

Project Manager

Name

Email: eric.casella@forestry.gsi.gov.uk

Tel: +44 (0)300 067 5600
Tel direct: +44 (0)300 067 5630
Fax: +44 (0)1420 23653

Address:
Forest Research
Alice Holt Lodge
Farnham
Surrey GU10 4LH
UK

Eric Casella on ResearchGate

Dr Eric Casella joined Forest Research in 2000 with a background in plant ecophysiology and computer sciences. He was awarded an MSc in Forest Science from Henri Poincaré University, France and, a PhD in plant growth and productivity from Blaise Pascal University, France where his research focused on long-term effects of climate change on temperate grass sward ecosystems. He worked as post-doctoral researcher at the University of Antwerp, Belgium before being granted a Marie Curie EU Fellowship on functional relations between environmental variables, 3-D plant structure and yield for the bioenergy sector.

Current role

Dr Casella’s research focuses on the functional relations between plant structure and physiological activity, mainly based on computed virtual 3-D plant mock-ups from empirical and digitized techniques; coupled to physical and biogeochemical process-based models. In particular, Dr Casella is interested in how we can model this interaction and how we can exploit the models to quantify and understand water and carbon dioxide fluxes and energy and carbon balances of forest ecosystems under actual and future climate scenarios.

Dr Casella plays a key role in the coordination of an international Research & Development group of scientists focused on the development of novel mathematical methods for extracting forest canopy structural and functional components from terrestrial LiDAR point-cloud data. Outputs from this project underpin non-destructive 3-D forest mock-up reconstructions, carbon stock assessments and modelling of carbon dynamics with unprecedented levels of detail and accuracy. Dr Casella’s research also aims to provide novel methods of data collection and post-processing tools, such as National Forest Inventories (NFI) and monitoring systems, in order to produce more accurate, harmonised and timely information that can be fed into national and international forest information systems.

Current projects

C&FS Programme 6: Assessing forest resources, GHG balance and modelling
Lead the R&D for new models and methods to exploit observations from terrestrial LiDAR instruments to extract forest canopy structure and biomass.

DIABOLO – ‘Distributed, Integrated and Harmonised Forest Information for Bioeconomy Outlooks’. Financed by Horizon 2020, coordinated by the Natural Resources Institute in Finland (Luke).

Research on delivering new methods and models to produce harmonised data and information on wood resources at the individual tree and sample plot levels for National Forest Inventories (NFI).

C&FS Programme 1: Assessing Resilience
Research on quantifying changes to resilience, which includes much of our measurement and analysis programme on stand-scale carbon and GHG balance. 

Affiliations and responsibilities

Member of the Editorial Advisory Board of Frontiers in Plant Science (IF: 4.298)

Have served on the 2014-17 Global Change Biology Bioenergy Editorial Advisory Board (IF: 4.655)

Member of the Scientific Committee of FSPMA (Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications)

Honorary Visiting Scientist, School of Biological Sciences, University of Southampton

Supervise PhD and Postdoc research projects in the field of Forest Ecology, particularly via networking activity across UK, EU, US and AU, e.g.:


Main recent publications and knowledge exchange activities

Selected publications

Aylott, M., Casella, E., Tubby, I., Street, N.R., Smith, P. and Taylor, G. (2008). Yield and spatial supply of bioenergy poplar and willow short rotation coppice in the UK. New Phytologist 178, 358-370.

Casella, E. and Sinoquet, H. (2003). A method for describing the canopy architecture of coppice poplar with allometric relationships. Tree Physiology 23, 1153-1169.

Casella, E. and Ceulemans, R. (2002). Spatial distribution of leaf morphological and physiological characteristics in relation to local radiation regime within 3-year-old Populus clones under coppice culture. Tree Physiology 22, 1277-1288.

Casella, E. and Soussana, J.F. (1997). Long-term effects of CO2 enrichment and temperature increase on the carbon balance of a temperate grass sward. Journal of Experimental Botany 48, 1309-1321.

Casella, E., Soussana, J.F. and Loiseau, P. (1996). Long-term effects of CO2 enrichment and temperature increase on a temperate grass sward. I. Productivity and water use. Plant and Soil 182, 83-99.

Media

3D Forest Information: showing how a forest plot can be automatically weighted from our terrestrial laser scanner.

BBC Oak Tree: Nature's Greatest Survivor trailer - BBC Four - September 2015. Winner 2016 Royal Television Society award for best Science and Natural History programme.

A 3-D animation delivered to the BBC, animation computer-generated from our terrestrial laser scanning data recorded during the summer 2014 at the Wytham Wood.

The animation as computed from our winter 2014-15 scan campaign.

Peer-reviewed journal articles

Pinnington, E.M., Casella, E., Dance, S., Lawless, A., Morison, J., Nichols, N., Wilkinson, M. and Quaife, T. (2017) Understanding the effect of disturbance from selective felling on the carbon dynamics of a managed woodland by combining observations with model predictions. JRB-Biogeosciences 122, 886–902.

Pinnington, E.M., Casella, E., Dance, S., Lawless, A., Morison, J., Nichols, N., Wilkinson, M. and Quaife, T. (2016) Investigating the role of prior and observation error correlations in improving a model forecast of forest carbon balance using four dimensional variational data assimilation. Agricultural and Forest Meteorology 228, 299-314.

Hetroy-Wheeler, F., Casella, E. and Boltcheva, D. (2016) Segmentation of tree seedling point clouds into elementary units. International Journal of Remote Sensing 37, 2881-2907.

Richards, M., Pogson, M., Dondini, M., Jones, E.O., Hastings, A., Henner, D.N., Tallis, M.J., Casella, E., Matthews, R.W., Henshall, P.A., Milner, S., Taylor, G., McNamara, N.P., Smith, J.U. and Smith, P. (2016) High resolution spatial modelling of greenhouse gas emissions from land use change to energy crops in the UK. Global Change Biology Bioenergy 9, 627-644.

Åkerblom, M., Raumonen, P., Kaasalainen, M. and Casella, E. (2015) Analysis of geometric primitives in quantitative structure models of tree stems. Remote Sensing 7, 4581-4603.

Raumonen, P., Casella, E., Calder, K., Murphy, S., Åkerblom, M. and Kaasalainen, M. (2015) Massive-scale tree modelling from TLS data. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences. 3, 189-196.

Hastings, A., Tallis, M.J., Casella, E., Matthews, R., Henshall, P., Milner, S., Smith, P. and Taylor, G. (2014) The technical potential of Great Britain to produce ligno-cellulosic biomass for bioenergy in current and future climates. Global Change Biology Bioenergy 6, 108-122.

Wang, S., Hastings, A., Wang, S.C., Sunnenberg, G, Tallis, M., Casella, E., Taylor, S., Wang, C., Alexander, P., Cisowska, I., Lovett, A, Taylor, G., Firth, S., Finch, J., Moran, D., Morison, J. and Smith, P. (2014) The potential for bioenergy crops to contribute to meeting GB heat and electricity demands. Global Change Biology Bioenergy 6, 136-141.

Alexander, P., Moran, D., Smith, P., Hastings, A., Wang, S., Sunnenberg, G., Lovett, A., Tallis, M., Casella, E., Taylor, G., Finch, J. and Cisowska, I. (2014) Estimating UK perennial energy crop supply using farm scale models with spatially disaggregated data. Global Change Biology Bioenergy 6, 142-155.

Balandier, P., Marquier, A., Casella, E., Kiewitt, A., Coll, L., Werlhen, L. and Harmer, R. (2013) Architecture, cover and light interception by bramble (Rubus fruticosus), a common understorey weed in temperate forests. Forestry 86, 39-46.

Tallis, M., Casella, E., Henshall, P., Aylott, M., Randle, T., Morison, J.I.L. and Taylor, G.. (2013) Development and evaluation of ForestGrowth-SRC a process-based model for short rotation coppice yield and spatial supply reveals poplar uses water more efficiently than willow. Global Change Biology Bioenergy 5, 53-66.

Heinemeyer, A., Wilkinson, M., Vargas, R., Subke, J.-A., Casella, E., Morison, J.I.L. and Ineson, P. (2012) Exploring the "overflow tap" theory: linking forest soil CO2 fluxes and individual mycorrhizosphere components to photosynthesis. Biogeosciences 9, 79-95.

Aylott, M.J., Casella, E., Farrall, K. and Taylor, G. (2010) Estimating the supply of biomass from short rotation coppice in England, given social, economic and environmental constraints to land availability. Biofuels 1, 719-727.

Bauen, A.W., Dunnett, A.J., Richter, G.M., Dailey, A.G., Aylott, M., Casella, E. and Taylor, G. (2010) Modelling supply and demand of bioenergy from short rotation coppice and miscanthus in the UK. Bioresource Technology 101, 8132-8143.

Scientific conferences

Casella, E., Hackenberg, J., Raumonen, P., Rombourg, R., Bouriaud, O., Piboule, A. and Vega, C. (2017) A sensitivity analysis of forest tree mock-up reconstruction methods from phase-shift based tLiDAR data. IUFRO - 125th Anniversary Congress, A joint session of the European National Forest Inventory Network (ENFIN) and the Horizon 2020 project DIABOLO, Freiburg, Germany, September 2017.

Bouriaud, O., Casella, E., Freudenschuss, A., Gschwantner, T., Hervé, J.C., Kändler, G., Klatt. S., Marin, G., Miloš, K., Nord-Larsen, T., Riedel, T., Saint-André, L. and Vonderach, C. (2017) Pan-European harmonised biomass equation for the most frequent forest species. IUFRO - 125th Anniversary Congress, A joint session of the European National Forest Inventory Network (ENFIN) and the Horizon 2020 project DIABOLO, Freiburg, Germany, September 2017.

Casella, E., Raumonen, P., Rombourg, R., Hetroy-Weeler, F. and McKay, H. (2016) A comprehensive sensitivity analysis of forest tree mock-up reconstruction methods from phase-shift based LiDAR point-cloud data. International Conference on Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications, FSPMA, Qingdao, China, November 2016.

Rombourg, R., Casella, E., Hetroy-Weeler, F. and McKay, H. (2016) An alternative set of filtering and correction methods for phase-shift based tLiDAR scanners in measuring forest vegetation structures. International Conference on Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications, Qingdao, China, November 2016

Pinnington, E., Casella, E., Dance, S., Lawless, A., Morison, J., Nichols, N., Wilkinson, M. and Quaife, T. (2016) Investigating the role of background and observation error correlations in improving a model forecast of forest carbon balance using four dimensional variational data assimilation. European Geosciences Union, Vienna, April 2016.

Raumonen, P., Casella, E., Calder, K., Murphy, S., Åkerblom, M. and Kaasalainen, M. (2015) Massive-scale tree modelling from TLS data. Joined conference on PIA15 Photogrammetric Image Analysis – HRIGI15 High-Resolution Earth Imaging for Geospatial Information Conference. Munich, Germany, March 2015.

Schofield, L.A., Danson, F.M., Entwistle, N.S., Casella, E., Disney, M.I. and Gaulton, M. (2015) Improving estimates of leaf area index with a dual-wavelength full-waveform TLS: The Salford Advanced Laser Canopy Analyser (SALCA).14th Conference on Lidar Applications for Assessing and Managing Forest Ecosystems, SilviLaser, La Grande Motte, France, September 2015.

Pete Smith, P., Lovett, A., Finch, J., Moran, D., Taylor, G., Casella, E., Taylor, S., Firth, S., Wang, S., Alexander, P., Wang, C., Hastings, A., Tallis, M., Sunnenberg, G., Hillier, J., Allinson, D., Quddus, M., Morison, J. and Cisowska, I. (2013). Spatial Mapping and Evaluation of Energy Crop Distribution in Great Britain to 2050. UK Energy Research Centre, February 2013.

Wilkinson, M., Eaton, E., Casella, E., Crow, P. and Morison, J. (2013). Effects of management thinning on carbon dioxide uptake by a plantation oak woodland in SE England. European Geosciences Union, Vienna, Austria, April 2013.

Cade, S., Clemitshaw, K., Lowry, D., Yamulki, S., Casella, E., Molina, S., Haas, E. and Kiese, R. (2013). LandscapeDNDC used to model nitrous oxide emissions from soil under an oak forest in southern England. European Geosciences Union, Vienna, Austria, April 2013.

Casella, E., Disney, M., Morison, J. and McKay, H. (2013). tLiDAR methodologies can overcome limitations in estimating forest canopy LAI from conventional hemispherical photograph analyses. 7th International Conference on Functional-Structural Plant Models, FSPM, Saariselkä, Finland, June 2013.

Boltcheva, D., Casella, E., Cumont, R. and Hétroy, F. (2013). A spectral clustering approach of vegetation components for describing plant topology and geometry from terrestrial LiDAR data. 7th International Conference on Functional-Structural Plant Models, FSPM, Saariselkä, Finland, June 2013.

Raumonen, P., Casella, E., Disney, M., Åkerblom, M. and Kaasalainen, M. (2013). Fast automatic method for constructing topologically and geometrically precise tree models from TLS data. 7th International Conference on Functional-Structural Plant Models, FSPM, Saariselkä, Finland, June 2013.

Casella, E., Raumonen, P., Åkerblom, M., Morison, J., Disney, M., Kaasalainen, M. and McKay, H. (2013) Forest canopy metrics and carbon stock estimates from 3-D terrestrial LiDAR data. Atelier T-LiDAR pour la communauté francophone - Quatrième Edition, Marseille, France, Octobre 2013.

Casella, E., Morison, J.I.L., Disney, M., Danson, M. and McKay, H. (2012) Estimating forest canopy structure from terrestrial laser scanner measurements: a case study with a 670 nm wavelength laser beam. Knowledge Exchange Workshop on Terrestrial Laser Scanning, University of Leicester, UK, January 2012.

Casella, E. (2012). Estimating forest gap fraction from terrestrial laser scanning. Department of Biology, University of Antwerp, Belgium.

Balandier, P., Marquier, A., Casella, E., Kiewitt, A., Coll, L., Wehrlen, L. and Harmer, R. (2011). Architecture, cover and light interception by a common understorey weed (Rubus fructicosus) in temperate forests. Forest Vegetation Management Conference, Valdivia, Chile, November 2011.

Wilkinson M., Casella E., Crow P. and Morison J.I.L. (2011). Effects of management thinning on CO2 uptake by a plantation oak woodland in SE England. CarboForest Conference, Sekocin Stary, Poland, September 2011.

Casella, E. (2011). Estimating forest gap fraction from terrestrial laser scanning, case study with a 670 nm wavelength laser beam. Remote Sensing and Environmental Mapping Seminars, Department of Geography, UCL, November 2011.

Casella E., Morison J.I.L. & McKay H. (2010). Modelling forest canopy gap fraction from terrestrial laser scanning: trade-off between speed and quality. Mathematical Modelling of Plant Development workshop, Mathematical Biosciences Institute, Ohio State University, USA, September 2010.

Heinemeyer, A., Willkinson, M., Subke, J.A., Casella, E., Vargas, R., Morison, J.I.L. and Ineson, P. (2010). The ‘overflow tap’ theory: linking GPP to forest soil carbon dynamics and the mycorrhizal component. European Geosciences Union, Vienna, Austria, May 2010.