Abstract
This chapter aimed to characterize the aerodynamic mass and energy fluxes over forest canopies. These canopies are rough surfaces wherein flow-gradient assumptions may not be valid, leading to exponential wind profiles in trunk spaces and understory, superimposed by logarithmic profiles above the top of canopies. This leads to airflow regimes wherein canopy stomatal resistance is dependent on tree physiological factors and of short and long-term phenomena, in interaction with aerodynamic variables. Forest canopies are also very prone to intermittent events, such as gusts or ejections, and wake formation in trees downstream, adding components to the usual kinetic energy equations and influencing turbulence spectral dynamics and particle transport. The analysis of drag processes in canopies, in wind tunnel and field, allows also to characterize phenomena such as tree bending and pulling. The evapotranspiration regime of these canopies is also coupled with the moisture of soil and atmosphere, in comparison with lower canopies, with transient flow mechanisms particularly relevant in trunk and understory spaces. Finally, forest canopies are relevant in carbon balance dynamics, especially related to the net ecosystem exchange, on a micro or global scale, and these dynamics reflect the influence of physical and biological factors in carbon sinking.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Allard, V., Ourcival, S. R., Joffre, R., e Rocheteau, A. (2008). Seasonal and annual variation of carbon exchange in an evergreen forest in southern france. Global Change Biology, 14, 714–725.
Balddochi, D. D. (1994). A comparative study of mass and energy exchange over a close C3 (wheat) and open C4 (corn) canopy: I. the partitioning of available energy into latent and sensible heat exchange. Agricultural and Forest Meteorology, 67, 191–220.
Baldocchi, D. D., & Meyers, T. P. (1988). Turbulence structure in a deciduous forest. Boundary Layer Meteorology, 43, 345–364.
Baldocchi, D., & Meyers, T. (1991). Trace gas exchange above the floor of a deciduous forest: 1. Evaporation and CO2 efflux. Journal of Geophysical Research, 96, 7271–7285.
Baldocchi, D. D., Vogel, A. C., & Hall, B. (1997). Seasonal variation of energy and water vapor exchange rates above and below a boreal jack pine forest canopy. Journal of Geophysical Research, 102, 28939–28951.
Blanken, P. D., Black, T. A., Yang, P. C., Neumann, H. H., Nesic, Z., Staebler, R., et al. (1997). Energy balance and canopy conductance of a boreal aspen forest: partitioning overstory and understory components. Journal of Geophysical Research, 102, 28915–28927.
Carrara, A., Janssens, I., Yuste, J., & Ceulemans, R. (2004). Seasonal changes in photosynthesis, respiration and NEE of a mixed temperate forest. Agricultural and Forest Meteorology, 126, 15–31.
Carrara, A., Kowalski, A. S., Neirynck, J., Janssens, I. A., Yuste, J. C., & e Ceulemans, R. (2003). Net ecosystem CO2 exchange of mixed forest in Belgium over 5 years. Agricultural and Forest Meteorology, 119, 209–227.
Cellier, P., & Brunet, Y. (1992). Flux-gradient relationships above tall plant canopies. Agricultural and Forest Meteorology, 58, 93–117.
Ciais, P., Reichstein, M., Viovy, N., Granier, A., Ogee, J., Allard, V., et al. (2005). Europe-wide reduction in primary productivity caused by the heat and drought in 2003. Nature, 437, 529–533.
Coppin, P. A., Raupach, M. R., & Legg, B. J. (1986). Experiments on scalar dispersion within a plant model canopy, Part II: An elevated plane source. Boundary Layer Meteorology, 35, 167–191.
Cunha, F. R. (1977). Meteorologia Geral e Agrícola. Mesologia e Meteorologia Agrícolas, Instituto Superior de Agronomia, Lisboa, (in portuguese).
Denmead, O. T., & Bradley, E. F. (1985). Flux-gradient relationships in a forest canopy, pp. 421–442. In B. A Hutchinson, B. B. Hichs (eds.). The Forest-Atmosphere Interaction. Proceedings of the Forest Environmental Measurements Conference, Reidel Publishing Company, p. 850.
Djomo, S. N., Kasmioui, O., & Ceulemans, R. (2011). Energy and greenhouse gas balance of bioenergy production from poplar and willow: A review. GCB Bioenergy, 3, 181–197.
Ennos, A. R. (1991). The mechanics of anchorage in wheat (Triticum aestivum L.). Journal of Experimental Botany, 42, 1607–1613.
Falge, E., Baldocchi, D., Tenhunen, J., Aubinet, M., Bakwin, P., Berbigier, P., Bernhofer, C., Burba, G., Clement, R., Davis, K. J., Elbers, J. A., Goldstein, A. H., Grelle, A., Granier, A., Gumundsson, J., Hollinger, D., Kowalski, A. S., Katul, G., Law, B. E., Malhi, Y., Meyers, T., Monson, R. K., Munger, J. W., Oechel, W., Paw Uv., Tha, K., Pilegaard, K., Rannik, Ü., Rebmann, C., Andrew Suyker, A., Valentini, R., Wilson, K., & Wofsy, S. (2002). Seasonality of ecosystem respiration and gross primary production as derived from FLUXNET measurements. Agricultural and Forest Meteorology, 113, 53–74.
Fazu, C., & Schwerdtfeger, P. (1989). Flux-gradient relationships for momentum and heat over a rough natural surface. Quarterly Journal of the Royal Meteorological Society, 115, 335–352.
Foken, T. (2008). Micrometeorology (p. 306). Berlin: Springer Verlag.
Foken, T. (2017). Micrometeorology (2nd ed.) (p. 362). Springer Verlag, Berlin.
Garrat, J. R. (1980). Surface influence upon vertical profiles in the atmospheric near-surface layer. Quarterly Journal of the Royal Meteorological Society, 106, 803–819.
Garrat, J.R. (1994) The atmospheric boundary layer. Cambridge University Press, p. 316.
Gash, J. H. C., & Stewart, J. B. (1975). The average surface resistance of a pine forest derived from bowen ratio measurements. Boundary Layer Meteorology, 8, 453–464.
Granier, A., Reichstein, M., Breda, N., Janssens, I. A., Falge, E., Ciais, P., et al. (2007). Evidence for soil water control on carbon and water dynamics in european forests during the extremely dry year: 2003. Agricultural and Forest Meteorology, 143, 123–145.
Green, S. R., Grace, J., & Hutchings, N. J. (1995). Observations of turbulent air flow in three stands of widely spaced sitka spruce. Agricultural and Forest Meteorology, 74, 205–225.
Jarvis, P. G., & McNaughton, K. J. (1986). Stomatal control of transpiration: Scaling up from leaf to region. Advances in Ecological Research, 15, 1–48.
Kaimal, J. C., & Finnigan, J. J. (1994). Atmospheric Boundary Layer Flows (p. 289). Their Structure and Measurement: Oxford University Press.
Kelliher, F. M., Leuning, R., Raupach, M. R., & Shulze, E. D. (1995). Maximum conductance for evaporation from global vegetation types. Agricultural and Forest Meteorology, 73, 1–16.
Kelliher, F. M., Whitehead, D., Mcaneney, K. J., & Judd, M. J. (1990). Partitioning evapotranspiration into tree and understorey components in two young Pinus radiata D. Don Stands. Agricultural and Forest Meteorology, 50, 211–227.
Ladanai, S., & Vinterbäck, J. (2009). Global potential of sustainable biomass for energy, Report 013. SLU, Uppsala, p. 32.
Leclerc, M. Y., Beissner, K. C., Shaw, R. H., Den, H. G., & Neumann, H. H. (1990). The influence of atmospheric stability on the budgets of reynolds stress and turbulent kinetic energy within and above a deciduous forest. Journal of Applied Meteorology, 29, 916–933.
Lee, X., & Black, T. A. (1993a). Atmospheric turbulence within and above a Douglas fir stand. Part I: statistical properties of the velocity field. Boundary Layer Meteorology, 64, 149–174.
Lee, X., & Black, T. A. (1993b). Atmospheric turbulence within and above a douglas fir stand. Part II: eddy fluxes of sensible heat and water vapour. Boundary Layer Meteorology, 64, 369–389.
Lindroth, A. (1985). Seasonal and diurnal variation of energy budget components in coniferous forests. Journal of Hydrology, 82, 1–15.
Mihailovic, D. T., Branislava, L., Rajkovic, B., & Arsenic, I. (1999). A roughness sublayer profile above a non-uniform surface. Boundary Layer Meteorology, 93, 425–451.
Monteith, J. L., & Unsworth, M. H. (1991). Principles of environmental physics (2nd Ed.) (p. 291), Edward Arnold.
Monteith, J. L., & Unsworth, M. H. (2013). Principles of environmental physics (4th ed., p. 403). Oxford: Academic Press.
Oke, T. R. (1992). Boundary layer climates (2nd ed.), 435. Routledge.
Pereira, J. S., Tenhunen, J. D., Lange, O. L., Beyschlag, W., Meyer, A., e David, M. M. (1986). Seasonal and diurnal patterns in leaf gas exchange of eucalyptus globulus labill. Trees growing in Portugal. Canadian Journal of Forest Research, 16, 177–184.
Pereira, J. S., Mateus, J. A., Aires, L. M., Pita, G., Pio, C., David, J. S., et al. (2007). Net ecosystem carbon exchange in three contrasting mediterranean ecosystems—the effect of drought. Biogeosciences, 4, 791–802.
Pita, G., Gielen, B., Zona, D., Rodrigues, A., Rambal, S., Janssens, I. A., & Ceulemans, R. (2013). Carbon and water vapor fluxes over four forests in two contrasting climatic zones. Agricultural and Forest Meteorology, 180, 211–224.
Raupach, M. R., & Shaw, R. H. (1982). Averaging procedures for flow within vegetation canopies. Boundary Layer Meteorology, 22, 79–90.
Raupach, M. R., & Thom, A. S. (1981). Turbulence in and above plant canopies. Annual Review of Fluid Mechanics, 13, 97–129.
Reichstein, M., Tenhunen, J. D., Roupsard, O., Ourcival, J. M., Rambal, S., Miglietta, F., Peressotti, A., Pecchiari, M., Tirone e, G., Valentini, R. (2002). Severe drought effects on ecosystem CO2 and H2O fluxes at three mediterranean evergreen sites: Revision of current hypotheses? Global Change Biology, 8(10), 999–1017.
Rodrigues, A. M. (2002). Fluxos de Momento, Massa e Energia na Camada Limite Atmosférica em Montado de Sobro. Ph.D. Thesis (Environment, Energy profile) Instituto Superior Técnico, U.T.L., Lisbon, 235 pp. [in portuguese].
Rodrigues, A. M., Oliveira, H. (2006). Sequestro de Carbono, Tendências Globais e Perspetivas do Sector Florestal Português. Ingenium, II Série, 92, 68–71. [in portuguese]
Rodrigues, A., Pita, G., Mateus, J., Kurz-Besson, C., Casquilho, M., Cerasoli, S., et al. (2011). Eight years of continuous carbon fluxes measurements in a portuguese eucalypt stand under two main events: drought and felling. Agricultural and Forest Meteorology, 151, 493–507.
Shaw, R. C (1995). Statistical description of turbulence. Lecture 9, in: Advanced Short Course on Biometeorology and Micrometeorology. Università di Sassari, Italia.
Shaw, R. H., Hartog, G. D., & Neumann, H. H. (1988). Influence of foliar density and thermal stability on profiles of reynolds stress and turbulence intensity in a deciduous forest. Boundary Layer Meteorology, 45, 391–409.
Shaw, R. H., U. Paw, K. T., Zhang, X. J., Gao, W., Hartog, G., & Den Neumann, H. H. (1990). Retrieval of turbulent pressure fluctuations at the ground surface beneath a forest. boundary layer. Meteorology 50, 319–338.
Shuttlewortth, W. J., Gash, J. H. C., Lloyd, C. R., Moore, C., Roberts, J., Filho, A. O. M., Fisch, G., Filho V de, P.S., Ribeiro, M. N. G., Molion, L. C. B., Sá, L. D. A., Nobre, J. C. A., Cabral, O. M. R., Patel, S. R., & Moraes, J.C. (1984). Eddy correlation measurements of energy partition for amazonian forest. Quarterly Journal of the Royal Meteorological Society, 110, 1143–1162.
Stewart, J. B., & Thom, A. S. (1973). Energy budgets in pine forest. Quarterly Journal of the Royal Meteorological Society, 99, 154–170.
Stewart, J. B., & de Bruin, H. A. R. (1985). Preliminary study of dependence of surface conductance of thetford forests on environmental conditions, pp. 91–104. In B. A. Hutchinson, B. B. Hichs (Eds.). The Forest-Atmosphere Interaction. Reidel Publishing Company
Tan, C. S., & Black, T. A. (1976). Factors affecting the canopy resistance of a Douglas-Fir forest. Boundary Layer Meteorology, 10, 475–488.
Tani, N. (1963). The wind over the cultivated field. Bulletin of the National Institute of Agricultural, Science, Tokyo A 10, 99.
Tenhunen, J. D., Lange, O. L., Harley, P. C., Beyschlag, W., Meyer, A., e David, M. M. (1985). Limitations due to water stress of leaf net photosynthesis of Quercus Coccifers in the Portuguese evergreen scrub. Oecologia, 67, 23–30.
Vogt, R., & Jaeger, L. (1990). Evaporation from a pine forest-using the aerodynamic method and bowen ratio method. Agriculture and Forest Meteorology, 50, 39–54.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this chapter
Cite this chapter
Rodrigues, A., Sardinha, R.A., Pita, G. (2021). Exchange of Energy and Mass Over Forest Canopies. In: Fundamental Principles of Environmental Physics. Springer, Cham. https://doi.org/10.1007/978-3-030-69025-0_4
Download citation
DOI: https://doi.org/10.1007/978-3-030-69025-0_4
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-69024-3
Online ISBN: 978-3-030-69025-0
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)