Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths

The decomposition of soil litter contributes to maintaining agricultural sustainability, since the nutrients released by microbial activity are determinants of the net productivity of the agroecosystem. The decomposition of rubber tree (Hevea brasiliensis [Willd. ex A. Juss.] Müll. Arg.) leaves loca...

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Autores principales:	Gréggio,Thiago Claudino, Assis,Luiz Carlos, Nahas,Ely
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2008
Materias:	litter mass cellulose lignin soluble substances litter-bags
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000200002
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spelling	oai:scielo:S0718-583920080002000022018-10-01Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two DepthsGréggio,Thiago ClaudinoAssis,Luiz CarlosNahas,Ely litter mass cellulose lignin soluble substances litter-bags The decomposition of soil litter contributes to maintaining agricultural sustainability, since the nutrients released by microbial activity are determinants of the net productivity of the agroecosystem. The decomposition of rubber tree (Hevea brasiliensis [Willd. ex A. Juss.] Müll. Arg.) leaves located on the surface and buried in at 10 cm depth in Forest and Savannah (Cerradãio) soils (Oxisols) was studied, with emphasis on the production of CO2 and the monthly variation of the remaining amounts of litter mass, soluble substances, cellulose and lignin. To evaluate CO2 production, H. brasiliensis leaves were incubated for 30 days in soils from the 0-2 cm and 10-12 cm layers. CO2 production increased in the 0-2 cm layer in comparison to the 10-12 cm layer. Litter mass and soluble substance loss was of 62 and 72% at the end of nine months of incubation, and of 38 and 65%, respectively, in the first three months, being greater in the deeper (71-74%) than in surface layer (48-55%). Forest soil stimulated more litter mass loss and cellulose decomposition (only in the surface layer) than Savannah soil. The cellulose (25%) content decreased and lignin (30%) increased in the initial months of incubation, however, at the end of the period of this study the same content (29%) was found.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.68 n.2 20082008-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000200002en10.4067/S0718-58392008000200002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	litter mass cellulose lignin soluble substances litter-bags
spellingShingle	litter mass cellulose lignin soluble substances litter-bags Gréggio,Thiago Claudino Assis,Luiz Carlos Nahas,Ely Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths
description	The decomposition of soil litter contributes to maintaining agricultural sustainability, since the nutrients released by microbial activity are determinants of the net productivity of the agroecosystem. The decomposition of rubber tree (Hevea brasiliensis [Willd. ex A. Juss.] Müll. Arg.) leaves located on the surface and buried in at 10 cm depth in Forest and Savannah (Cerradãio) soils (Oxisols) was studied, with emphasis on the production of CO2 and the monthly variation of the remaining amounts of litter mass, soluble substances, cellulose and lignin. To evaluate CO2 production, H. brasiliensis leaves were incubated for 30 days in soils from the 0-2 cm and 10-12 cm layers. CO2 production increased in the 0-2 cm layer in comparison to the 10-12 cm layer. Litter mass and soluble substance loss was of 62 and 72% at the end of nine months of incubation, and of 38 and 65%, respectively, in the first three months, being greater in the deeper (71-74%) than in surface layer (48-55%). Forest soil stimulated more litter mass loss and cellulose decomposition (only in the surface layer) than Savannah soil. The cellulose (25%) content decreased and lignin (30%) increased in the initial months of incubation, however, at the end of the period of this study the same content (29%) was found.
author	Gréggio,Thiago Claudino Assis,Luiz Carlos Nahas,Ely
author_facet	Gréggio,Thiago Claudino Assis,Luiz Carlos Nahas,Ely
author_sort	Gréggio,Thiago Claudino
title	Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths
title_short	Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths
title_full	Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths
title_fullStr	Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths
title_full_unstemmed	Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths
title_sort	decomposition of the rubber tree hevea brasiliensis litter at two depths
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000200002
work_keys_str_mv	AT greggiothiagoclaudino decompositionoftherubbertreeheveabrasiliensislitterattwodepths AT assisluizcarlos decompositionoftherubbertreeheveabrasiliensislitterattwodepths AT nahasely decompositionoftherubbertreeheveabrasiliensislitterattwodepths
_version_	1714205259591581696

Decomposition of the Rubber Tree Hevea brasiliensis Litter at Two Depths

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