Changes in soil C and N distribution assessed by natural δ13C and δ15N abundance in a chronosequence of sugarcane crops managed with pre-harvest burning in a Cerrado area of Goiás, Brazil.

Autor:	Rossi, Celeste Queiroz1 celesteqrossi@yahoo.com.br, Pereira, Marcos Gervasio2 gervasio@ufrrj.br, Loss, Arcângelo3 arcangeloloss@yahoo.com.br, Gazolla, Paulo Roberto4 paulorgazolla@yahoo.com.br, Perin, Adriano5 perinrj@yahoo.com.br, dos Anjos, Lúcia Helena Cunha2 lanjosrural@gmail.com
Předmět:	*Carbon in soils *Nitrogen in soils *Soil chronosequences *Soil fertility *Harvesting Sugarcane Straw
Zdroj:	Agriculture, Ecosystems & Environment. Apr2013, Vol. 170, p36-44. 9p.
Abstrakt:	Highlights: [•] We evaluated changes in soil in sugarcane areas with pre-harvest straw burning. [•] We determined soil fertility and δ13C and δ15N abundance. [•] The replacement of natural Cerrado by sugarcane changed δ13C profile. [•] The sugarcane areas after substituting the Cerrado had the highest δ15N values. [Copyright &y& Elsevier]
Databáze:	GreenFILE
Externí odkaz:	Zobrazit plný text záznamu Full Text from ScienceDirect