Yes. Evidence to date seems to indicate that the type of woody source
material isn't particularly important, and Christmas Berry (Schinus
terebinthifolius) is a fairly normal tree in that regard.
In the biochar presentation i've given a few times, i have a slide
addressing the following point:
Critics of wide-scale use of biochar say it might someday encourage somebody
to cut a native forest, or clear vegetation to create biomass plantations.
Solution: Don't do that. There are vast sources of waste biomass and
invasive woody species around the world, use them. Here in Hawaii some
? Macnut shell
? Christmas berry
? Haole koa