Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil

Abstract The objective of this work was to evaluate the effect of soil carbon on landscape functioning of the Oxisols covering the plateaus of the Alto São Bartolomeu watershed, in the Cerrado (Brazilian savanna) region of Central Brazil. Soil organic carbon (SOC) concentration, carbon stocks, and s...

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Main Authors: Ray Pinheiro Alves, Antonio Felipe Couto Junior, Eder de Souza Martins, Gabriela Bielefeld Nardoto
Format: Article
Language:English
Published: Embrapa Informação Tecnológica 2016-09-01
Series:Pesquisa Agropecuária Brasileira
Subjects:
Online Access:http://www.scielo.br/pdf/pab/v51n9/0100-204X-pab-51-09-1241.pdf
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author Ray Pinheiro Alves
Antonio Felipe Couto Junior
Eder de Souza Martins
Gabriela Bielefeld Nardoto
author_facet Ray Pinheiro Alves
Antonio Felipe Couto Junior
Eder de Souza Martins
Gabriela Bielefeld Nardoto
author_sort Ray Pinheiro Alves
collection DOAJ
description Abstract The objective of this work was to evaluate the effect of soil carbon on landscape functioning of the Oxisols covering the plateaus of the Alto São Bartolomeu watershed, in the Cerrado (Brazilian savanna) region of Central Brazil. Soil organic carbon (SOC) concentration, carbon stocks, and some soil physical and chemical characteristics were determined at the 0-0.20-m depth on native and anthropogenic areas. Soils from cerrado stricto sensu patches were similar both physically and chemically, being affected by exchangeable Al3+ and by SOC concentrations, while anthropogenic matrices were affected by soil bulk density, pH, extractable P, and exchangeable Ca2+ and Mg2+. The estimate of spatial distribution of soil carbon better fitted had an adjusted R2 of 64.49% using soil C stock and 66.50% using SOC concentration from native and anthropic areas. Estimating SOC concentration from soil and landscape types, using geotechnologies to analyze vegetation indices, is a potential tool to evaluate the productivity of different agroecosystems, besides contributing to make management strategies more suitable on large scales.
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spelling doaj.art-bd0b80d351c54b8597e1047f06b3769d2022-12-21T21:23:55ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212016-09-015191241125110.1590/s0100-204x2016000900024Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, BrazilRay Pinheiro AlvesAntonio Felipe Couto JuniorEder de Souza MartinsGabriela Bielefeld NardotoAbstract The objective of this work was to evaluate the effect of soil carbon on landscape functioning of the Oxisols covering the plateaus of the Alto São Bartolomeu watershed, in the Cerrado (Brazilian savanna) region of Central Brazil. Soil organic carbon (SOC) concentration, carbon stocks, and some soil physical and chemical characteristics were determined at the 0-0.20-m depth on native and anthropogenic areas. Soils from cerrado stricto sensu patches were similar both physically and chemically, being affected by exchangeable Al3+ and by SOC concentrations, while anthropogenic matrices were affected by soil bulk density, pH, extractable P, and exchangeable Ca2+ and Mg2+. The estimate of spatial distribution of soil carbon better fitted had an adjusted R2 of 64.49% using soil C stock and 66.50% using SOC concentration from native and anthropic areas. Estimating SOC concentration from soil and landscape types, using geotechnologies to analyze vegetation indices, is a potential tool to evaluate the productivity of different agroecosystems, besides contributing to make management strategies more suitable on large scales.http://www.scielo.br/pdf/pab/v51n9/0100-204X-pab-51-09-1241.pdfBrazilian savannano-tillageOxisolpasturepedotransfer functionvegetation indices
spellingShingle Ray Pinheiro Alves
Antonio Felipe Couto Junior
Eder de Souza Martins
Gabriela Bielefeld Nardoto
Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil
Pesquisa Agropecuária Brasileira
Brazilian savanna
no-tillage
Oxisol
pasture
pedotransfer function
vegetation indices
title Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil
title_full Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil
title_fullStr Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil
title_full_unstemmed Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil
title_short Role of soil carbon in the landscape functioning of the Alto São Bartolomeu watershed in the Cerrado region, Brazil
title_sort role of soil carbon in the landscape functioning of the alto sao bartolomeu watershed in the cerrado region brazil
topic Brazilian savanna
no-tillage
Oxisol
pasture
pedotransfer function
vegetation indices
url http://www.scielo.br/pdf/pab/v51n9/0100-204X-pab-51-09-1241.pdf
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