John Roy Porter

John Roy Porter

Professor, emeritus

ORCID: 0000-0002-0777-3028

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  1. Published

    Deconstructing agronomic resource use efficiencies to increase food production

    Porter, John Roy, Thorburn, P. J., Brown, H. E., Teixeira, E. I., Moot, D. J., Mills, A. & Christensen, Svend, 2021, In: Italian Journal of Agronomy. 16, 3, 6 p., 1694.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Deconstructing crop processes and models via identities

    Porter, John Roy & Christensen, Svend, 2013, In: Plant, Cell and Environment. 36, 11, p. 1919-1925 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Decoupling of greenhouse gas emissions from global agricultural production: 1970-2050

    Bennetzen, E. H., Smith, P. & Porter, John Roy, 2016, In: Global Change Biology. 22, 2, p. 763-781 19 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Demographic approaches to studies of canopy development in plants

    Porter, John Roy, 1996, In: Biomass & Bioenergy. (2-3), p. 207-214 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Denmark: agriworld

    Porter, John Roy, 1996, In: The ¤furrow. 101, 2, 2 p.

    Research output: Contribution to journal › Journal article › Communication

  6. Published

    Det europæiske fødevaresystem og fremtidens scenarier for landbrug

    Porter, John Roy, Porter, H. R. B. & Olesen, J. E., 2010, In: Geografisk Orientering. 2

    Research output: Contribution to journal › Journal article › Research

  7. Published

    Determination of biomass accumulation in mixed belts of Salix, Corylus and Alnus species in combined food and energy production system

    Ghaley, Bhim Bahadur & Porter, John Roy, 2014, In: Biomass & Bioenergy. 63, p. 86-91 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Distribution of assimilated carbon in plants and rhizosphere soil of basket willow (Salix viminalis L.)

    de Neergaard, Andreas, Porter, John Roy & Gorissen, A., 2002, In: Plant and Soil. 245, 2, p. 307-314 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Durum wheat modeling: The Delphi system, 11 years of observations in Italy

    Toscano, P., Ranieri, R., Matese, A., Vaccari, F. P., Gioli, B., Zaldei, A., Silvestri, M., Ronchi, C., La Cava, P., Porter, John Roy & Miglietta, F., 2012, In: European Journal of Agronomy. 43, p. 108-118 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Durum wheat quality prediction in Mediterranean environments: from local to regional scale

    Toscano, P., Gioli, B., Genesio, L., Vaccari, F. P., Miglietta, F., Zaldei, A., Crisci, A., Ferrari, E., Bertuzzi, F., La Cava, P., Ronchi, C., Silvestri, M., Peressotti, A. & Porter, John Roy, 2014, In: European Journal of Agronomy. 61, p. 1-9 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    E-learning, climate change and carbon footprints

    Henriksen, Christian Bugge, Monty, A. & Porter, John Roy, 2009, In: Institute of Physics Conference Series. 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  12. Published

    Ecosystem function and service quantification and valuation in a conventional winter wheat production system with DAISY model in Denmark

    Ghaley, Bhim Bahadur & Porter, John Roy, 2014, In: Ecosystem Services. 10, p. 79-83 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Ecosystem services from agriculture

    Porter, John Roy & Sigsgaard, L, Apr 2008, Ecosystem Services and Drivers of Biodiversity Change. Report of the RUBICODE electronic conference. Grant, F., Harrison, J., Sykes, P., Skourtos, M., Rounsevell, M., Kluvánková-Oravská, T., Settele, J., Musche, M., Anton, C. & Watt, A. (eds.). p. 33 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  14. Published

    Edited plants should not be patented: gene editing

    Porter, John Roy, Durand, J. & Elmayan, T., 2016, In: Nature. 530, 7588, p. 33 1 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  15. Published

    Effect of soil warming and rainfall patterns on soil N cycling in northern Europe

    Patil, R. H., Lægdsmand, M., Olesen, J. E. & Porter, John Roy, 2010, In: Agriculture, Ecosystems & Environment. 139, 1-2, p. 195-205 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Effects and relationships of grazing intensity on multiple ecosystem services in the Inner Mongolian steppe

    Fan, F., Liang, C., Tang, Y., Harker-Schuch, I. & Porter, John Roy, 20 Jul 2019, In: Science of the Total Environment. 675, p. 642-650

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Effects of elevated CO/sub 2/ and drought on wheat: testing crop simulation models for different experimental and climatic conditions

    Ewert, F., Rodriguez, D., Jamieson, P., Semenov, M. A., Mitchell, R. A. C., Goudriaan, J., Porter, John Roy, Kimball, B. A., Pinter, P. J., Manderscheid, R., Weigel, H. J., Fangmeier, A., Fereres, E. & Villalobos, F., 2002, In: Agriculture, Ecosystems & Environment. 93, p. 249-266 18 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Effects of extreme temperatures at two growth stages on wheat

    Porter, John Roy & Wollenweber, B., 1997. 5 p.

    Research output: Contribution to conference › Paper › Research

  19. Published

    Effects of high temperature extremes on wheat: do extreme temperature events interact in wheat?

    Wollenweber, B., Schellberg, J. & Porter, John Roy, 1998, Ikke angivet. European Commission, Fourth Framework Programme, DGXII, 4 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  20. Published

    Effects of high temperature extremes on wheat

    Ferris, R., Wheeler, T. R., Ellis, R. H., Hadley, P., Wollenweber, B., Porter, John Roy, Karacostas, T. S., Papadopoulos, M. N. & Schellberg, J., 2000, Climate change, climatic variability and agriculture in Europe : an integrated assessment. Downing, T. E., Harrison, P. A., Butterfield, R. E. & Lonsdale, K. G. (eds.). p. 31-55 25 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  21. Published

    Effects of water deficits and high temperature-events in wheat

    Wollenweber, B., Porter, John Roy, Jensen, C. R. & Schellberg, J., 2004, Ikke angivet. Sven-Erik Jacobsen, C. R. J. J. R. P. (ed.). Samfundslitteratur, p. 195-196 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  22. Published

    Effects of water deficits and high temperature-events in wheat

    Wollenweber, B., Jensen, C. R., Schellberg, J. & Porter, John Roy, 2000. 1 p.

    Research output: Contribution to conference › Paper › Research

  23. Published

    Effects of windbreak strips of willow coppice: modelling and field experiment on barley in Denmark

    Foereid, B., Bro, Rasmus, Mogensen, V. O. & Porter, John Roy, 2002, In: Agriculture, Ecosystems & Environment. 93, 1-3, p. 25-32 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Effects on willow

    Evans, L. G., Eckersten, H., Semenov, M. A. & Porter, John Roy, 1995, Climate change and agriculture in Europe. Harrison, P. A., Butterfield, R. E. & Downing, T. E. (eds.). Oxford: Environmental Change Unit, p. 220-223 4 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  25. Published

    Emergy signature as a basis for sustainability valuation of agro-ecosystems

    Ghaley, Bhim Bahadur, Montesino San Martin, M. & Porter, John Roy, 2011. 1 p.

    Research output: Contribution to conference › Poster › Research

  26. Published

    Emergy synthesis of a combined food and energy production system compared to a conventional wheat (Triticum aestivum) production system

    Ghaley, Bhim Bahadur & Porter, John Roy, 2013, In: Ecological Indicators. 24, p. 534-542 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Emissions of nitrous oxide from arable organic and conventional cropping systems on two soil types

    Chirinda, N., Carter, M. S., Albert, K. R., Ambus, Per Lennart, Olesen, J. E., Porter, John Roy & Petersen, S. O., 2010, In: Agriculture, Ecosystems & Environment. 136, 3-4, p. 199-208 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    Empirical modelling of regional and national durum wheat quality

    Toscano, P., Genesio, L., Crisci, A., Vaccari, F. P., Ferrari, E., La Cava, P., Porter, John Roy & Gioli, B., 2015, In: Agricultural and Forest Meteorology. 204, p. 67-78 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    En anden slags grøn revolution venter

    Felby, C., Streibig, Jens Carl & Porter, John Roy, 2006, In: Morgenavisen Jyllands-Posten. 136, 20, 1 p.

    Research output: Contribution to journal › Contribution to newspaper - Newspaper article › Communication

  30. Published

    En global kulstofbank mod CO2-udslip

    Porter, John Roy & Streibig, Jens Carl, 2008, In: Berlingske Tidende. p. 23 1 p.

    Research output: Contribution to journal › Contribution to newspaper - Feature article › Communication

  31. Published

    Energetic, economic and ecological balances of a combined food and energy system

    Kuemmel, B., Langer, Vibeke, Magid, Jakob, de Neergaard, Andreas & Porter, John Roy, 1998, In: Biomass & Bioenergy. (4/5), p. 407-416 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Evaluation of Sustainability of Irrigated Crops in Arid Regions, China

    Fan, F., Li, B., Zhang, W., Porter, John Roy & Zhang, F., 2021, In: Sustainability. 13, 1, 15 p., 342.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Evaluation of temperature-based global solar radiation models in China

    Liu, X., Mei, X., Li, Y., Wang, Q., Jensen, J. R., Zhang, Y. & Porter, John Roy, 2009, In: Agricultural and Forest Meteorology. 149, 9, p. 1433-1446 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Experimental assessment of ecosystem services in agriculture

    Sandhu, H., Porter, John Roy & Wratten, S., 2013, Ecosystem services in agricultural and urban landscapes. Wratten, S., Sandhu, H., Cullen, R. & Costanza, R. (eds.). Wiley-Blackwell, p. 122-135 14 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  35. Published

    Experimental variability in wheat responses to elevated CO2 and ozone: an analysis of open-top chamber experiments by means of mechanistic simulation

    Ewert, F. & Porter, John Roy, 2001. 2 p.

    Research output: Contribution to conference › Paper › Research

  36. Published

    Feedings Capitals: Security and Sovereignty of Food and Land in Canberra, Copenhagen and Tokyo

    Porter, John Roy, 2010, Green Revolution 2.0: Food+Energy and Environmental Security: Session 52: Symposium--Global Food Security in a Changing Climate. American Society of Agronomy, p. s. 71

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  37. Published

    Final report of Long Ashton Research Station (UK) to the European Stress Physiology and Climate Experiment

    Porter, John Roy & Ewert, F., 1997, In: Project 1 : wheat. EV5V-CT93-0301, 18 p.

    Research output: Contribution to journal › Journal article › Research

  38. Published

    Food and fibre

    Porter, John Roy, Green, K., Ingram, J. & Jaeger, J., 2003, In: Global Problems - Global Science - Europes contribution to global change research. ESF forward Look Report. 1, p. 45-56 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Food and nutritional security requires adequate protein as well as energy, delivered from whole-year crop production

    Coles, G. D., Wratten, S. D. & Porter, John Roy, 2016, In: PeerJ. 4, 17 p., e2100.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Food security: focus on agriculture

    Porter, John Roy, Challinor, A., Ewert, F., Falloon, P., Fischer, T., Gregory, P., Van Ittersum, M. K., Olesen, J. E., Moore, K. J., Rosensweig, C. & Smith, P., 2010, In: Science. 328, p. 172 1 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  41. Published

    Food security and food production systems

    Porter, John Roy, Xie, L., Challinor, A., Cochrane, K., Howden, M., Iqbal, M. M., Lobell, D. & Travasso, M. I., 2014, Fifth Assessment Report of the Intergovernmental Panel on Climate Change. p. 1-82 82 p.

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research › peer-review

  42. Published

    Food security and food production systems

    Porter, John Roy, Xie, L., Challinor, A. J., Cochrane, K., Howden, S. M., Iqbal, M. M., Lobell, D. B. & Travasso, M. I., 2014, Climate Change 2014: Impacts, Adaptation, and Vulnerability. Cambridge University Press, p. 485-533 53 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  43. Published

    Food, hunger, health, and climate change

    Woodward, A. & Porter, John Roy, 2016, In: The Lancet. 387, 10031, p. 1886-1887 2 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  44. Published

    Future contributions of crop modelling-from heuristics and supporting decision making to understanding genetic regulation and aiding crop improvement

    Hammer, G. L., Kropff, M. J., Sinclair, T. R. & Porter, John Roy, 2002, In: European Journal of Agronomy. 18, p. 15-31 17 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    Future education in ecological agriculture and food systems: a student-faculty evaluation and planning process

    Lieblein, G., Francis, C., Barth-Eide, W., Torjusen, H., Solberg, S., Salomonsson, L. V., Ekblad, G., Persson, P., Helenius, J., Loiva, M., Seppänen, L., Kahiluoto, H., Porter, John Roy, Olsen, H., Sriskandarajah, N., Mikk, M. & Flora, C., 2000, In: Journal of Sustainable Agriculture. 16, 4, p. 49-69 21 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    GLP (2005) Science Plan and Implementation Strategy. IGPB Report No. 53/IHDP Report No. 19

    Moran, E., Ojima, D., Buchmann, N., Canadell, J., Graumlich, L., Jackson, R., Jaramillo, V., Lavorel, S., Leadly, P., Matson, P., Murdiyarso, D., Porter, John Roy, Pfaff, A., Pitelka, L., Rajan, K., Ramankutty, N., Turner, B. & Yagi, K., 2005, Stockholm: EGBP Secretariat. 64 p.

    Research output: Book/Report › Report › Communication

  47. Published

    Global wheat production with 1.5 and 2.0°C above pre-industrial warming

    Liu, B., Martre, P., Ewert, F., Porter, J. R., Challinor, A. J., Müller, C., Ruane, A. C., Waha, K., Thorburn, P. J., Aggarwal, P. K., Ahmed, M., Balkovič, J., Basso, B., Biernath, C., Bindi, M., Cammarano, D., De Sanctis, G., Dumont, B., Espadafor, M., Eyshi Rezaei, E. & 37 others, Ferrise, R., Garcia-Vila, M., Gayler, S., Gao, Y., Horan, H., Hoogenboom, G., Izaurralde, R. C., Jones, C. D., Kassie, B. T., Kersebaum, K. C., Klein, C., Koehler, A., Maiorano, A., Minoli, S., Montesino San Martin, M., Naresh Kumar, S., Nendel, C., O'Leary, G. J., Palosuo, T., Priesack, E., Ripoche, D., Rötter, R. P., Semenov, M. A., Stöckle, C., Streck, T., Supit, I., Tao, F., Van der Velde, M., Wallach, D., Wang, E., Webber, H., Wolf, J., Xiao, L., Zhang, Z., Zhao, Z., Zhu, Y. & Asseng, S., Apr 2019, In: Global Change Biology. 25, 4, p. 1428-1444

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Globalt læringsmiljø om et globalt problem: en beskrivelse af et tværvidenskabeligt online kursus om klimaforandringer

    Henriksen, Christian Bugge, Monty, A. & Porter, John Roy, 2010, In: Tidsskriftet Læring og Medier (LOM). 6, p. 1-21 21 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Growth and yield response of winter wheat to soil warming and rainfall patterns

    Patil, R. H., Lægdsmand, M., Olesen, J. E. & Porter, John Roy, 2010, In: Journal of Agricultural Science. 148, 5, p. 553-566 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. Published

    How will growing cities eat?

    Porter, John Roy, Deutsch, L., Dumaresq, D. & Dyball, R., 2011, In: Nature. 469, p. 34 1 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

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