Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C

The Brazilian savannah (cerrado) is an area of expansion of agribusiness. Among the various environmental changes related to deforestation of the savannah stand out impacts related to soil organic matter such as the imbalances in stocks and the changing nature of soil organic carbon. The objective o...

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Autores principales:	Vania Rosolen, Thalita Mendes Resende, Elias Nascentes Borges, Cristiane Tumang Frare, Henrique Amorim Machado
Formato:	article
Lenguaje:	EN ES
Publicado:	Universidad Nacional Autónoma de México 2012
Materias:	brazilian savannah total carbon carbon isotope agricultural systems Geography. Anthropology. Recreation G Geography (General) G1-922
Acceso en línea:	https://doaj.org/article/274043810251451a95b194301871dd27
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spelling	oai:doaj.org-article:274043810251451a95b194301871dd272021-11-11T15:14:34ZImpactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C0188-46112448-7279https://doaj.org/article/274043810251451a95b194301871dd272012-01-01T00:00:00Zhttp://www.redalyc.org/articulo.oa?id=56924845004https://doaj.org/toc/0188-4611https://doaj.org/toc/2448-7279The Brazilian savannah (cerrado) is an area of expansion of agribusiness. Among the various environmental changes related to deforestation of the savannah stand out impacts related to soil organic matter such as the imbalances in stocks and the changing nature of soil organic carbon. The objective of these study was to evaluate changes in nature (δ13C) and quantity (C%) of soil carbon after conversion of the dense savannah vegetation in areas under different lan duses (pasture, soybeans, corn / soybean rotation), management (conventional and zero tillage) developed in soils with different textural characteristics. The results showed that the average data set of non-managed grazing was the most distanced from the value obtained in cerrado soil. Another factor that determined the lowest concentrations of organic carbon was the presence of sandy soil. The results showed that the carbon C4 grasses in areas occupied by pastures, with or without management, replaced the original C3 carbon originated by cerrado. In the areas of conventional tillage, and no-tillage soybean, and consortium soybean/corn, no clear trend of impoverishment or enrichment of carbon and the carbon substitution as well as the incorporation of different nature of the carbon could be found.Vania RosolenThalita Mendes ResendeElias Nascentes BorgesCristiane Tumang FrareHenrique Amorim MachadoUniversidad Nacional Autónoma de Méxicoarticlebrazilian savannahtotal carboncarbon isotopeagricultural systemsGeography. Anthropology. RecreationGGeography (General)G1-922ENESInvestigaciones Geográficas, Iss 79, Pp 39-47 (2012)
institution	DOAJ
collection	DOAJ
language	EN ES
topic	brazilian savannah total carbon carbon isotope agricultural systems Geography. Anthropology. Recreation G Geography (General) G1-922
spellingShingle	brazilian savannah total carbon carbon isotope agricultural systems Geography. Anthropology. Recreation G Geography (General) G1-922 Vania Rosolen Thalita Mendes Resende Elias Nascentes Borges Cristiane Tumang Frare Henrique Amorim Machado Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C
description	The Brazilian savannah (cerrado) is an area of expansion of agribusiness. Among the various environmental changes related to deforestation of the savannah stand out impacts related to soil organic matter such as the imbalances in stocks and the changing nature of soil organic carbon. The objective of these study was to evaluate changes in nature (δ13C) and quantity (C%) of soil carbon after conversion of the dense savannah vegetation in areas under different lan duses (pasture, soybeans, corn / soybean rotation), management (conventional and zero tillage) developed in soils with different textural characteristics. The results showed that the average data set of non-managed grazing was the most distanced from the value obtained in cerrado soil. Another factor that determined the lowest concentrations of organic carbon was the presence of sandy soil. The results showed that the carbon C4 grasses in areas occupied by pastures, with or without management, replaced the original C3 carbon originated by cerrado. In the areas of conventional tillage, and no-tillage soybean, and consortium soybean/corn, no clear trend of impoverishment or enrichment of carbon and the carbon substitution as well as the incorporation of different nature of the carbon could be found.
format	article
author	Vania Rosolen Thalita Mendes Resende Elias Nascentes Borges Cristiane Tumang Frare Henrique Amorim Machado
author_facet	Vania Rosolen Thalita Mendes Resende Elias Nascentes Borges Cristiane Tumang Frare Henrique Amorim Machado
author_sort	Vania Rosolen
title	Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C
title_short	Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C
title_full	Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C
title_fullStr	Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C
title_full_unstemmed	Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C
title_sort	impactos da substituição da vegetação original do cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13c
publisher	Universidad Nacional Autónoma de México
publishDate	2012
url	https://doaj.org/article/274043810251451a95b194301871dd27
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Impactos da substituição da vegetação original do Cerrado brasileiro em sistemas agrícolas: alteração do carbono orgânico do solo e d13C

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