Bernoux Martial, Santana Carvalho M. de C., Volkoff Boris, Cerri C.C. (2002). Brazil's soil carbon stocks. Soil Science Society of America Journal, 66 (3), p. 888-896. ISSN 0361-5995.
Titre du document
Brazil's soil carbon stocks
Année de publication
2002
Type de document
Article
Auteurs
Bernoux Martial, Santana Carvalho M. de C., Volkoff Boris, Cerri C.C.
Source
Soil Science Society of America Journal, 2002,
66 (3), p. 888-896 ISSN 0361-5995
Soil organic carbon (C) stocks to a depth of 30 cm were estimated for Brazil on the basis of a map of different soil-vegetation associations (SVA) combined with results from a soil database. The SVA map was derived by intersection of soil and vegetation maps. The original soil and vegetation classification were simplified to six soil and 15 vegetation categories. The SVA map comprised 21 111 map units (MU) that were spread into 75 different SVA categories. Mean representative C stocks (RCS) of the SVA categories ranged from 1.51 to 41.78 kg cm(-2). More than three fourth of all SVA areas had an associated RCS varying between 3 and 6 kg C m(-2). Because these data represent sites with native vegetation in the absence of significant disturbances, they represent a valuable baseline for evaluating the effect of land-use change on soil C stocks for Brazil. In total, about 36.4 +/- 3.4 Pg C was stored in the 0- to 30-cm soil layer.
Plan de classement
Constituants et propriétés des sols [068PROSOL]
Descripteurs
SOL ; CARBONE ORGANIQUE ; STOCK ; CARTE PEDOLOGIQUE ; CARTE PHYTOGEOGRAPHIQUE
