Distribution and turnover of phosphorus, nitrogen and BHC [of soil, litter, plants, insects and animals] in the forest burnt by fire

Distribution and turnover of phosphorus (total phosphorus; TP), nitrogen (total nitrogen; TN) and BHC in the forest burnt by fire and pine forest (not burnt) were examined in Mt. Furutaka, Edajima-cho (stands; burnt and not burnt forests) and Yasuura-cho (stand; burnt forest), Hiroshima Pref. in 1984. There was no remarkable difference in the bioconcentration and distribution of TP, TN and BHC between the forest stands. The same tendency was found in the bioconcentration of TP and TN between the forest stands, but the content of TN was about one hundred times as high as that of TP. There was large difference in bioconcentration between two kinds of salt (TP, TN) and BHC. The content of TP and TN increased as ecological niche of food chain became higher, whereas BHC residues was highly concentrated in litter.