Influência entre relação de radiação fotossinteticamente ativa e radiação global na produtividade primária bruta para Santa Rita do Passa Quatro - SP
Keyword(s):
This work aims to establish a relationship between the photosynthetically active radiation (PAR) and the global radiation (Rg) for Santa Rita do Passa Quatro (SP), during the period from February 2005 to February 2006 and evaluate its impact on gross primary production (GPP). Data of Rg (Wm-2) and PAR (μmols s-1m-2) were obtained from the mirometeorological tower located in Gleba Cerrado Giant Foot. Data analysis allowed the establishment of a linear equation to express the relationship between PAR (MJ m-2) and Rg (MJ m-2) as: PAR = 0.3787 Rg or PAR = 1.742 Rg, for PAR (μmols s-1m-2) and Rg (MJ m-2). This relationship is indicated for the GPP determination when there is no PAR measurements.
2021 ◽
Vol 25
(9)
◽
pp. 612-619
2014 ◽
Vol 119
(1)
◽
pp. 110-123
◽
2021 ◽
2021 ◽
Vol 21
(18)
◽
pp. 14177-14197
2010 ◽
Vol 115
(D12)
◽
2011 ◽
Vol 115
(12)
◽
pp. 3424-3435
◽