An obvious inhibition of canopy CO2 exchange in the afternoon coupling with
increases in VPD and air temperature was observed year-round. In the case of
nighttime NEE, a slight increase in wet period was observed. Diurnal pattern of
CO2 exchange revealed that obvious restriction of canopy photosynthesis in the
afternoon was occurred in this forest irrespective of soil moisture. Seasonal and
annual patterns of CO2 exchange reveal that one of the main causes which
induce the difference in NEE pattern between Amazonian and Southeast Asian
rainforests was not the difference in daytime photosynthesis but the difference
in ecosystem respiration related with dry and rainy seasons. The decrease of
CO2 uptake (increase of NEE) at wet period was also observed at this site, but
did not form an obvious seasonality such as in Amazonian forests.

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Categories: Kitaran Karbon, Perubahan Iklim
Tags: Artikel Jurnal, Data Penerbitan, Sulit