Mean gravimetric water content (g g^-1) in experimental plots at 45 cm depth.

Treatments marked with (-) could not be sampled because sand was too dry and collapsed before the target depth could be reached. Differences in number of samples per treatment also reflect difficulties in sampling from some plots because of dry sand. Water treatments were: high (721 mm), average (323 mm) and low (100 mm), corresponding to La Niña, neutral and El Niño conditions in Northwest Costa Rica. Mean gravimetric water content (g g-1) in experimental plots at 45 cm depth.