There were significant improvements in available water capacity (AWC) of the soil by both
Leucaena and Gliricidia-based systems. In comparison with the no-till system, increase in
AWC by Leucaena- and Gliricidia-based systems, respectively, was 42 and 56 percent by
weight for 0-5cm depth and 12 and 58 percent by weight for 5-10cm depth. Alterations in
pV curves by agroforestry-based systems were attributed to improvements in soil structure and
structural porosity.