Okwuosa, Elizabeth A; Makokha, Michael M.; Keter, Peter; Roba, Adano W.; Owuor, J.B. Okeyo; Mwima, Polycarp; Yabann, Wilson; Agasha, Annah (Research gate, 2011-10)
This study compared total soil organic carbon in soils from a mature primary undisturbed 30-
year old forest with that from 5-year old secondary forest plantation and 20-year old coffee
plantation in Cheptais forest of ...