Black carbon affects the cycling of non-black carbon in soil

Autor:	Flávio J. Luizão, Julie M. Grossman, Biqing Liang, John L. Gaunt, Janice E. Thies, Lucerina Trujillo, Dawit Solomon, Saran Sohi, B. O'Neill, Eduardo Góes Neves, Johannes Lehmann
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Geochemistry and Petrology Chemistry Ecology Soil organic matter Environmental chemistry Soil water Biogeochemistry Soil classification Organic matter Carbon black Mineralization (soil science) Carbon cycle
Popis:	Black carbon (BC) is an important fraction of many soils worldwide and plays an important role in global C biogeochemistry. However, few studies have examined how it influences the mineralization of added organic matter (AOM) and its incorporation into soil physical fractions and whether BC decomposition is increased by AOM. BC-rich Anthrosols and BC-poor adjacent soils from the Central Amazon (Brazil) were incubated for 532 days either with or without addition of 13 C-isotopically different plant residue. Total C mineralization from the BC-rich Anthrosols with AOM was 25.5% ( P P P P 13 C-enriched microbial culture. The recovery was found to be 21–41% lower ( P
Databáze:	OpenAIRE
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