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Ratio of photosynthetically active to total incoming radiation above a Mediterranean deciduous oak forest

  • Nikolaos ProutsosEmail author
  • Aristotle Liakatas
  • Stavros Alexandris
Original Paper
  • 19 Downloads

Abstract

Photosynthetically active radiation (PAR) is an important parameter in ecological research. However, it is not routinely measured and often is estimated as a constant ratio of the incoming solar shortwave radiation (Rs). There are only few reported PAR/Rs values worldwide concerning the Mediterranean climate and even fewer from rural or forest areas, especially at higher altitudes. Hourly PAR and Rs flux densities were measured above a deciduous oak forest in Greece from 1999 to 2005, and their relationship was investigated under various conditions. Results show that the annual mean hourly PAR/Rs is 0.454, ranging from 0.443 in spring to 0.478 in autumn, with intermediate values in summer (0.454) and winter (0.459). The ratio increases with dew point temperature but decreases as solar elevation angle or Rs increases. Atmospheric clearness index, Kt, and actual water vapor pressure, ea, are the key factors determining the ratio; however, relative humidity (RH) also seems to have an indirect effect by affecting Kt and ea values. PAR/Rs changes from 0.468 to 0.455 as sky conditions change from clear to overcast and appears to increase with ea. However, Kt affects the ratio when RH is lower than 60%, while ea has a more obvious effect at more saturated atmospheric conditions.

Notes

Acknowledgements

The important contributions of the reviewers are highly acknowledged by the authors. Also, the authors, would like to thank the SCIENTACT S.A. company for providing the equipment for the radiometers calibration.

Funding information

This study was funded by the EC Project MEDEFLU-EUROFLUX “Carbon and water fluxes of Mediterranean forests and impacts of land use/cover changes” (ENV4-CT97-0455 DGXII-Environment and Climate) carried out by the Agricultural University of Athens and the Göttingen Institute of Bioclimatology.

References

  1. Aguiar LJG, Fischer GR, Ladle RJ, Malhado ACM, Justino FB, Aguiar RG, Costa JMN (2012) Modeling the photosynthetically active radiation in South West Amazonia under all sky conditions. Theor Appl Climatol 108:631–640.  https://doi.org/10.1007/s00704-011-0556-z CrossRefGoogle Scholar
  2. Akitsu T, Kume A, Hirose Y, Ijima O, Nasahara KN (2015) On the stability of radiometric ratios of photosynthetically active radiation to global solar radiation in Tsukuba, Japan. Agric For Meteorol 209-210:59–68.  https://doi.org/10.1016/j.agrformet.2015.04.026 CrossRefGoogle Scholar
  3. Alados I, Alados-Arboledas L (1999) Validation of an empirical model for photosynthetically active radiation. Int J Climatol 19:1145–1152.  https://doi.org/10.1002/(SICI)1097-0088(199908)19:10<1145::AID-JOC428>3.0.CO;2-3 CrossRefGoogle Scholar
  4. Al-Shooshan AA (1997) Estimation of photosynthetically active radiation under an arid climate. J Agric Eng Res 66:9–13.  https://doi.org/10.1006/jaer.1996.0112 CrossRefGoogle Scholar
  5. Bat-Oyun T, Shinod M, Tsubo M (2012) Effects of cloud, atmospheric water vapor, and dust on photosynthetically active radiation and total solar radiation in a Mongolian grassland. J Arid Land 4(4):349–356.  https://doi.org/10.3724/SP.J.1227.2012.00349 CrossRefGoogle Scholar
  6. Duffie JA, Beckman WA (1980) Solar engineering of thermal processes. Wiley, New York, pp 1–109Google Scholar
  7. Dye DG (2004) Spectral composition and quanta-to-energy ratio of diffuse photosynthetically active radiation under diverse cloud conditions. J Geophys Res 109:D10203.  https://doi.org/10.1029/2003JD004251 CrossRefGoogle Scholar
  8. Escobedo JF, Gomes EN, Oliveira AP, Soares J (2009) Modeling hourly and daily fractions of UV, PAR and NIR to global solar radiation under various sky conditions at Botucatu, Brazil. Appl Energy 86:299–309.  https://doi.org/10.1016/j.apenergy.2008.04.013 CrossRefGoogle Scholar
  9. Escobedo JF, Gomes EN, Oliveira AP, Soares J (2011) Ratios of UV, PAR and NIR components to global solar radiation measured at Botucatu site in Brazil. Renew Energy 36:169–178.  https://doi.org/10.1016/j.renene.2010.06.018 CrossRefGoogle Scholar
  10. Finch DA, Bailey WG, McArthur LJB, Nasitwitwi M (2004) Photosynthetically active radiation regimes in a southern African savanna environment. Agric For Meteorol 122:229–238.  https://doi.org/10.1016/j.agrformet.2003.09.015 CrossRefGoogle Scholar
  11. Frouin R, Pinker RT (1995) Estimating photosynthetically active radiation (PAR) at the earth’s surface from satellite observations. Remote Sens Environ 51:98–107.  https://doi.org/10.1016/0034-4257(94)00068-X CrossRefGoogle Scholar
  12. Gao ZQ, Xie XP, Gao W, Chang NB (2011) Spatial analysis of terrain-impacted photosynthetic active radiation using MODIS data. GISci Remote Sens 48:501–521.  https://doi.org/10.2747/1548-1603.48.4.501 CrossRefGoogle Scholar
  13. Ge S, Smith RG, Jacovides CP, Kramer MG, Carruthers RI (2011) Dynamics of photosynthetic photon flux density (PPFD) and estimates in coastal northern California. Theor Appl Climatol 105:107–118.  https://doi.org/10.1007/s00704-010-0368-6 CrossRefGoogle Scholar
  14. González J, Calbó J (2002) Modelled and measured ratio of PAR to global radiation under cloudless skies. Agric For Meteorol 110:319–325.  https://doi.org/10.1016/S0168-1923(01)00291-X CrossRefGoogle Scholar
  15. Gueymard C (1989) A two-band model for the calculation of clear sky solar irradiance, illuminance, and photosynthetically active radiation at the earth's surface. Sol Energy 43:253–265.  https://doi.org/10.1016/0038-092X(89)90113-8 CrossRefGoogle Scholar
  16. Howell TA, Meek DW, Hatfield JL (1983) Relationship of photosynthetically active radiation to shortwave in the San Joaquin Valley. Agric Meteorol 28:157–175.  https://doi.org/10.1016/0002-1571(83)90005-5 CrossRefGoogle Scholar
  17. Hu B, Wang YS, Liu GR (2007a) Measurements and estimations of photosynthetically active radiation in Beijing. Atmos Res 85:361–371.  https://doi.org/10.1016/j.atmosres.2007.02.005 CrossRefGoogle Scholar
  18. Hu B, Wang YS, Liu GR (2007b) Spatio-temporal characteristics of photosynthetically active radiation in China. J Geophys Res 112:D14106.  https://doi.org/10.1029/2006JD007965 CrossRefGoogle Scholar
  19. Hu B, Wang YS, Liu GR (2010a) Variation characteristics of ultraviolet radiation derived from measurement and reconstruction in Beijing, China. Tellus B 62:100–108.  https://doi.org/10.1111/j.1600-0889.2010.00452.x CrossRefGoogle Scholar
  20. Hu B, Wang YS, Liu GR (2010b) Long-term trends in photosynthetically active radiation in Beijing. Adv Atmos Sci 27:1380–1388.  https://doi.org/10.1007/s00376-010-9204-2 CrossRefGoogle Scholar
  21. Hu B, Liu G, Wang Y (2016) Investigation of the variability of photosynthetically active radiation in the Tibetan Plateau, China. Renew Sust Energ Rev 55:240–248.  https://doi.org/10.1016/j.rser.2015.10.155 CrossRefGoogle Scholar
  22. Hu B, Tang L, Liu H, Zhao X, Liu Z, Wang Y, Wang L (2018) Trends of photosynthetically active radiation over China from 1961 to 2014. Int J Climatol 38(10):4007–4024.  https://doi.org/10.1002/joc.5551 CrossRefGoogle Scholar
  23. Iqbal M (1983) An introduction to solar radiation. Academic Press, New York, p 390Google Scholar
  24. Jacovides CP, Tymvios FS, Asimakopoulos DN, Theofilou KM, Pashiardes S (2003) Global photosynthetically active radiation and its relationship with global solar radiation in the Eastern Mediterranean basin. Theor Appl Climatol 74:227–233.  https://doi.org/10.1007/s00704-002-0685-5 CrossRefGoogle Scholar
  25. Jacovides CP, Timvios FS, Papaioannou G, Asimakopoulos DN, Theofilou CM (2004) Ratio of PAR to broadband solar radiation measured in Cyprus. Agr For Meteorol 121:135–140.  https://doi.org/10.1016/j.agrformet.2003.10.001 CrossRefGoogle Scholar
  26. Jacovides CP, Tymvios FS, Assimakopoulos VD, Kaltsounides NA (2007) The dependence of global and diffuse PAR radiation components on sky conditions at Athens, Greece. Agr For Meteorol 143:277–287.  https://doi.org/10.1016/j.agrformet.2007.01.004 CrossRefGoogle Scholar
  27. Janjai S, Wattan R (2011) Development of a model for the estimation of photosynthetically active radiation from geostationary satellite data in a tropical environment. Remote Sens Environ 115:1680–1693.  https://doi.org/10.1016/j.rse.2011.02.026 CrossRefGoogle Scholar
  28. Joshi KB, Costello JH, Priya S (2011) Estimation of solar energy harvested for autonomous jellyfish vehicles (AJVs). IEEE J Ocean Eng 36:539–551.  https://doi.org/10.1109/JOE.2011.2164955 CrossRefGoogle Scholar
  29. Kaplanis S, Kaplani E (2010) Stochastic prediction of hourly global solar radiation for Patra, Greece. Appl Energy 87:3748–3758.  https://doi.org/10.1016/j.apenergy.2010.06.006 CrossRefGoogle Scholar
  30. Kumar R, Aggarwal RK, Sharma JD (2015) Comparison of regression and artificial neural network models for estimation of global solar radiations. Renew Sust Energ Rev 52:1294–1299.  https://doi.org/10.1016/j.rser.2015.08.021 CrossRefGoogle Scholar
  31. Leuchner M, Hertel C, Menzel A (2011) Spatial variability of photosynthetically active radiation in European beech and Norway spruce. Agric For Meteorol 151(9):1226–1232.  https://doi.org/10.1016/j.agrformet.2011.04.014 CrossRefGoogle Scholar
  32. Li R, Zhao L, Ding Y, Wang S, Ji G, Xiao Y, Liu G, Sun L (2010) Monthly ratios of PAR to global solar radiation measured at northern Tibetan Plateau, China. Sol Energy 84:964–973.  https://doi.org/10.1016/j.solener.2010.03.005 CrossRefGoogle Scholar
  33. Liakatas A, Proutsos N, Alexandris S (2002) Optical properties affecting the radiant energy of an oak forest. Meteorol Appl 9:433–436  https://doi.org/10.1017/S135048270200405X CrossRefGoogle Scholar
  34. Liang F, Xia X (2005) Long-term trends in solar radiation and the associated climatic factors over China for 1961–2000. Ann Geophys 23:2425–2432 HAL Id: hal-00317880CrossRefGoogle Scholar
  35. Liu RG, Liang SL, He HL, Liu JY, Zheng T (2008) Mapping incident photosynthetically active radiation from MODIS data over China. Remote Sens Environ 112:998–1009.  https://doi.org/10.1016/j.rse.2007.07.021 CrossRefGoogle Scholar
  36. Mayer H, Holst T, Schindler D (2002) Microclimate within beech stands—part I: photosynthetically active radiation. Forstwiss Centralbl 121:301–321.  https://doi.org/10.1046/j.1439-0337.2002.02038.x CrossRefGoogle Scholar
  37. McCree KJ (1972) Test of current definitions of photosynthetically active radiation against leaf photosynthesis data. Agric Meteorol 10:443–453.  https://doi.org/10.1016/0002-1571(72)90045-3 CrossRefGoogle Scholar
  38. Meek DW, Hatfield JL, Howell TA, Idso SB, Reginato RJ (1984) A generalized relationship between photosynthetically active radiation and solar radiation. Agron J 76:939–945.  https://doi.org/10.2134/agronj1984.00021962007600060018x CrossRefGoogle Scholar
  39. Mizoguchi Y, Ohtani Y, Aoshima T, Hirakata A, Yuta S, Takanashi S, Iwata H, Nakai Y (2010) Comparison of the characteristics of five quantum sensors. Bull FFPRI 9(3):113–120Google Scholar
  40. Mizoguchi Y, Yasuda Y, Ohtani Y, Watanabe T, Kominami Y, Yamanoi K (2014) A practical model to estimate photosynthetically active radiation using general meteorological elements in a temperate humid area and comparison among models. Theor Appl Climatol 115:583–589.  https://doi.org/10.1007/s00704-013-0912-2 CrossRefGoogle Scholar
  41. Morel A, Smith RC (1974) Relation between total quanta and total energy for aquatic photosynthesis. Limnol Oceanogr 19:591–600.  https://doi.org/10.4319/lo.1974.19.4.0591 CrossRefGoogle Scholar
  42. Murray FW (1967) On the computation of saturation vapor pressure. J Appl Meteorol 6:203–204.  https://doi.org/10.1175/1520-0450(1967)006<0203:OTCOSV>2.0.CO;2 CrossRefGoogle Scholar
  43. Padovan A, Col DD (2010) Measurement and modelling of solar irradiance components on horizontal and tilted planes. Sol Energy 84:2068–2084.  https://doi.org/10.1016/j.solener.2010.09.009 CrossRefGoogle Scholar
  44. Papaioannou G, Papanikolaou N, Retalis D (1993) Relationships of photosynthetically active radiation and shortwave irradiance. Theor Appl Climatol 48:23–27.  https://doi.org/10.1007/BF00864910 CrossRefGoogle Scholar
  45. Porfirio ACS, De Souza JL, Lyra GB, Maringolo Lemes MA (2012) An assessment of the global UV solar radiation under various sky conditions in Maceió-Northeastern Brazil. Energy 44:584–592.  https://doi.org/10.1016/j.energy.2012.05.042 CrossRefGoogle Scholar
  46. Proutsos N, Liakatas A, Alexandris S, Tsiros I (2017) Carbon fluxes above a deciduous forest in Greece. Atmósfera 30(4):311–322.  https://doi.org/10.20937/atm.2017.30.04.03 CrossRefGoogle Scholar
  47. Qin J, Yang K, Liang S, Tang W (2012) Estimation of daily mean photosynthetically active radiation under all-sky conditions based on relative sunshine data. J Appl Meteorol Climatol 51:150–160.  https://doi.org/10.1175/JAMC-D-10-05018.1 CrossRefGoogle Scholar
  48. Rao CN (1984) Photosynthetically active components of global solar radiation: measurements and model computations. Arch Meteorol Geophys Bioklimatol, Ser B 34:353–364.  https://doi.org/10.1007/BF02269448 CrossRefGoogle Scholar
  49. Stanhill G, Fuchs M (1977) The relative flux density of photosynthetically radiation. J Appl Ecol 14:317–322.  https://doi.org/10.2307/2401848 CrossRefGoogle Scholar
  50. Stigter CJ, Musabilha MM (1982) The conservative ratio of photosynthetically active to total radiation in the tropics. J Appl Ecol 19:853–858.  https://doi.org/10.2307/2403287 CrossRefGoogle Scholar
  51. Sudharsan D, Adinarayana J, Reddy DR, Sreenivas G, Ninomiya S, Hirafuji M (2013) Evaluation of weather-based rice yield models in India. Int J Biometeorol 57:107–123.  https://doi.org/10.1007/s00484-012-0538-6 CrossRefGoogle Scholar
  52. Szeicz G (1974) Solar radiation for plant growth. J Appl Ecol 11:617–636.  https://doi.org/10.2307/2402214 CrossRefGoogle Scholar
  53. Tetens O (1930) Über einige meteorologische Begriffe. Z Geophys 6:297–309Google Scholar
  54. Tsubo M, Walker S (2005) Relationships between photosynthetically active radiation and clearness index at Bloemfontein, South Africa. Theor Appl Climatol 80:17–25.  https://doi.org/10.1007/s00704-004-0080-5 CrossRefGoogle Scholar
  55. Udo SO, Aro TO (1999) Global PAR related to global solar radiation for central Nigeria. Agric For Meteorol 97:21–31.  https://doi.org/10.1016/S0168-1923(99)00055-6 CrossRefGoogle Scholar
  56. Udo SO, Aro TO (2000) New empirical relationships for determining global PAR from measurements of global solar radiation, infrared radiation or sunshine duration. Int J Climatol 20:1265–1274.  https://doi.org/10.1002/1097-0088(200008)20:10<1265::AID-JOC530>3.0.CO;2-C CrossRefGoogle Scholar
  57. Van PE, Sanchez GA (2005) Mapping PAR using MODIS atmosphere products. Remote Sens Environ 94:554–563.  https://doi.org/10.1016/j.rse.2004.11.011 CrossRefGoogle Scholar
  58. Wang Q, Tenhunen J, Schmidt M, Kolcun O, Droesler M, Reichstein M (2006) Estimation of total, direct and diffuse PAR under clear skies in complex alpine terrain of the National Park Berchtesgaden, Germany. Ecol Model 196:149–162.  https://doi.org/10.1016/j.ecolmodel.2006.02.005 CrossRefGoogle Scholar
  59. Wang Q, Kakubari Y, Kubota M, Tenhunen J (2007) Variation of PAR to global solar radiation ratio along altitude gradient in Naeba Mountain. Theor Appl Climatol 87:239–253.  https://doi.org/10.1007/s00704-005-0220-6 CrossRefGoogle Scholar
  60. Wang L, Gong W, Ma Y, Zhang M (2013a) Modeling regional vegetation NPP variations and their relationships with climatic parameters in Wuhan, China. Earth Interact 17:1–20.  https://doi.org/10.1175/2012EI000478.1 CrossRefGoogle Scholar
  61. Wang L, Gong W, Li C, Lin A, Hu B, Ma Y (2013b) Measurement and estimation of photosynthetically active radiation from 1961 to 2011 in Central China. Appl Energy 111:1010–1017.  https://doi.org/10.1016/j.apenergy.2013.07.001 CrossRefGoogle Scholar
  62. Wang L, Gong W, Ma Y, Hu B, Zhang M (2014a) Photosynthetically active radiation and its relationship with global solar radiation in Central China. Int J Biometeorol 58:1265–1277.  https://doi.org/10.1007/s00484-013-0690-7 CrossRefGoogle Scholar
  63. Wang L, Gong W, Lin A, Hu B (2014b) Analysis of photosynthetically active radiation under various sky conditions in Wuhan, Central China. Int J Biometeorol 58:1711–1720.  https://doi.org/10.1007/s00484-013-0775-3 CrossRefGoogle Scholar
  64. Wang L, Gong W, Hu B, Lin A, Li H, Zou L (2015a) Modeling and analysis of the spatiotemporal variations of photosynthetically active radiation in China during 1961-2012. Renew Sust Energ Rev 49:1019–1032.  https://doi.org/10.1016/j.rser.2015.04.174 CrossRefGoogle Scholar
  65. Wang L, Gong W, Feng L, Lin A, Hu B, Zhou M (2015b) Estimation of hourly and daily photosynthetically active radiation in Inner Mongolia, China, from 1990 to 2012. Int J Climatol 35(10):3120–3131.  https://doi.org/10.1002/joc.4197 CrossRefGoogle Scholar
  66. Wang L, Gong W, Hu B, Zhu Z (2015c) Analysis of photosynthetically active radiation in Northwest China from observation and estimation. Int J Biometeorol 59(2):193–204.  https://doi.org/10.1007/s00484-014-0835-3 CrossRefGoogle Scholar
  67. Wang K, Ma Q, Li Z, Wang J (2015d) Decadal variability of surface incident solar radiation over China: observations, satellite retrievals, and reanalyses. J Geophys Res Atmos 120(13):6500–6514.  https://doi.org/10.1002/2015JD023420 CrossRefGoogle Scholar
  68. Wang L, Kisi O, Zounemat-Kermani M, Hu B, Gong W (2016) Modeling and comparison of hourly photosynthetically active radiation in different ecosystems. Renew Sust Energ Rev 56:436–453.  https://doi.org/10.1016/j.rser.2015.11.068 CrossRefGoogle Scholar
  69. Wang L, Hu B, Kisi O, Zounemat-Kermani M, Gong W (2017) Prediction of diffuse photosynthetically active radiation using different soft computing techniques. Q J R Meteorol Soc 143(706):2235–2244.  https://doi.org/10.1002/qj.3081 CrossRefGoogle Scholar
  70. Wortman E, Tomaszewski T, Waldner P, Schleppi P, Thimonier A, Eugster W, Buchmann N, Sievering H (2012) Atmospheric nitrogen deposition and canopy retention influences on photosynthetic performance at two high nitrogen deposition Swiss forests. Tellus Ser B Chem Phys Meteorol 64:17216.  https://doi.org/10.3402/tellusb.v64i0.17216 CrossRefGoogle Scholar
  71. Yu X, Wu Z, Jiang W, Guo X (2015) Predicting daily photosynthetically active radiation from global solar radiation in the Contiguous United States. Energ Convers Manage 89:71–82.  https://doi.org/10.1016/j.enconman.2014.09.038 CrossRefGoogle Scholar
  72. Zempila M-M, Taylor M, Bais A, Kazadzis S (2016) Modeling the relationship between photosynthetically active radiation and global horizontal irradiance using singular spectrum analysis. J Quant Spectrosc Radiat Transf 182:240–263Google Scholar
  73. Zhang X, Zhang Y, Zhoub Y (2000) Measuring and modelling photosynthetically active radiation in Tibet Plateau during April-October. Agric For Meteor 102:207–212.  https://doi.org/10.1016/S0168-1923(00)00093-9 CrossRefGoogle Scholar
  74. Zhu Z, Wang L, Gong W, Xiong Y, Hu B (2015) Observation and estimation of photosynthetic photon flux density in Southern China. Theor Appl Climatol 120(3–4):701–712.  https://doi.org/10.1007/s00704-014-1204-1 CrossRefGoogle Scholar

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© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Hellenic Agricultural Organization “DEMETER”Institute of Mediterranean Forest EcosystemsAthensGreece
  2. 2.Agricultural University of AthensAthensGreece

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