Articles | Volume 14, issue 17
Biogeosciences, 14, 3909–3926, 2017
https://doi.org/10.5194/bg-14-3909-2017
Biogeosciences, 14, 3909–3926, 2017
https://doi.org/10.5194/bg-14-3909-2017

Research article 07 Sep 2017

Research article | 07 Sep 2017

A biophysical approach using water deficit factor for daily estimations of evapotranspiration and CO2 uptake in Mediterranean environments

David Helman et al.

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Cited articles

Afik, T.: Quantitative estimation of CO2 fluxes in a semi-arid forest and their dependence on climatic factors, Thesis submitted to R.H. Smith Faculty of Agriculture, Food and Environment of Hebrew University, Rehovot, Israel (in Hebrew), Thesis submitted to R.H. Smith Faculty of Agriculture, Food and Environment of Hebrew University, Rehovot, Israel, 2009 (in Hebrew).
Allen, R. G., Pereira, L. S., and Raes, D.: Crop evapotranspiration?: guidelines for computing crop water requirements, FAO irrigation and drainage papers, 56, FAO, Rome, 1998.
Allen, R. G., Pruitt, W. O., Wright, J. L., Howell, T. A., Ventura, F., Snyder, R., Itenfisu, D., Steduto, P., Berengena, J., Yrisarry, J. B., Smith, M., Pereira, L. S., Raes, D., Perrier, A., Alves, I., Walter, I., and Elliott, R.: A recommendation on standardized surface resistance for hourly calculation of reference ETo by the FAO56 Penman-Monteith method, Agr. Water Manage., 81, 1–22, https://doi.org/10.1016/j.agwat.2005.03.007, 2006.
Asaf, D., Rotenberg, E., Tatarinov, F., Dicken, U., Montzka, S. A., and Yakir, D.: Ecosystem photosynthesis inferred from measurements of carbonyl sulphide flux, Nat. Geosci., 6, 186–190, 2013.
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A remote-sensing biophysical approach for estimating daily evapotranspiration and carbon uptake was tested at Mediterranean forest and non-forest sites in Israel after accounting for root zone water deficit. A newly developed mobile lab system and an active FLUXNET station were used for validation. The model successfully tracked observed changes in fluxes, showing promise for a reliable ecosystem-level assessment. Changes in water use efficiency due to afforestation were assessed in Israel.
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