Title : Ingestion of charcoal by the Amazonian earthworm Pontoscolex corethrurus : a 5
نویسندگان
چکیده
1 2 It is now attested that a large part of the Amazonian rain forest has been cultivated 3 during Pre-Colombian times, using charcoal as an amendment. The incorporation of charcoal 4 to the soil is a starting point for the formation of fertile Amazonian Dark Earths, still selected 5 by Indian people for shifting cultivation. We showed that finely separated charcoal was 6 commonly incorporated in the topsoil by Pontoscolex corethrurus, a tropical earthworm 7 which thrives after burning and clearing of the rain forest, and that this natural process could 8 be used to improve tropical soil fertility. Our paper is a contribution to the present debate 9 about (i) the origin of black carbon in fertile Dark Earths, (ii) the detrimental vs favourable 10 role of Pontoscolex corethrurus in tropical agriculture, (iii) natural processes which might be 11 used to increase tropical soil fertility 12 13
منابع مشابه
Burrowing activity of the geophagous earthworm Pontoscolex corethrurus (Oligochaeta: Glossoscolecidae) in the presence of charcoal
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