Peaty soil vs laterite soil The weather conditions of both peaty soil and laterite soil are the same, i.e. high rainfall &amp; temperature. But the former turns out to become 'excessive organic' whereas the latter becomes 'excessive decayed' soil.

What is the reason of this, that even after same climatic conditions they turn out to show opposite bacterial activity?
I didn't study tropical soils in any depth, but I've studied quite a bit about wetland soils. In my experience most peaty soils are waterlogged, which would encourage anoxia and prevent decay. Laterites are, from what I've read, usually dry at least part of the year, which would allow bacteria to munch on the organic matter.