Carbon and nitrogen concentrations and isotopes for the vegetation types in Brazil

A total of 6480 tree leaf samples were collected from 57 sites of the major Brazilian biomes encompassing the following main vegetation types according to IBGE (2012) classification. All samples included in this paper were analyzed at the Laboratory of Isotope Ecology of the Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP).本研究从巴西主要生物群系的57个采样点共收集6480份树叶样本，这些生物群系涵盖了巴西地理与统计研究所（Instituto Brasileiro de Geografia e Estatística，IBGE）2012年分类标准中所列的主要植被类型。本文收录的全部样本均在圣保罗大学（University of São Paulo，USP）农业核能中心（Center for Nuclear Energy in Agriculture，CENA）的同位素生态学实验室完成分析。