Expected tropical tree growth response to climate variables.

a<p>: expected growth response to the climate variable: (+) trees are expected to grow faster with high values of the climate variable, (−) trees are expected to grow slower with high values of the climate variable. <i>^b</i>: biological processes involve in the tree growth response to a given climate variation. <i>VPD</i> is vapour pressure deficit, and Friction velocity (<i>U*</i>) is a climate variable provided by eddy flux data, which is correlated with wind speed. Relative extractable water (REW), is a daily value between 0 and 1; when , the amount of extractable water by the tree is at its maximum and when , no water is available for the trees <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0092337#pone.0092337-Wagner1" target="_blank">[28]</a>.