During the past decade my work has involved restoring the soils on a twenty acre parcel of degraded cane land in Kaiwiki, mauka Wainaku. I did this by planting trees. The twenty years prior to that my experience was with bulldozed and ripped pahoehoe lands in Puna. Trees do well there as well.
Maybe you have a project in mind that I might help with?
Give Trees A Chance-Plant A House