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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Soil microstructure alterations induced by land use change for sugarcane expansion in Brazil

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Canisares, Lucas Pecci [1] ; Cherubin, Mauricio Roberto [2] ; Simoes da Silva, Laura Fernanda [2] ; Franco, Andre Luiz Custodio [3] ; Cooper, Miguel [2] ; Mooney, Sacha J. [4] ; Pellegrino Cerri, Carlos Eduardo [2]
Total Authors: 7
[1] Agron Inst Campinas, BR-13012970 Campinas, SP - Brazil
[2] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Piracicaba, SP - Brazil
[3] Colorado State Univ, Dept Biol, Sch Global Environm Sustainabil, Ft Collins, CO 80523 - USA
[4] Univ Nottingham, Sch Biosci, Leicester, Leics - England
Total Affiliations: 4
Document type: Journal article
Source: SOIL USE AND MANAGEMENT; v. 36, n. 2 JAN 2020.
Web of Science Citations: 0

Land use change (LUC) alters soil structure and, consequently, the functions and services provided by these soils. Conversion from extensive pasture to sugarcane is one of the largest land transitions in Brazil as a result of the growth of the domestic and global demands of bioenergy. However, the impacts of sugarcane expansion on the soil structure under extensive pasture remains unclear, especially when considering changes at the microscale. We investigated whether LUC for sugarcane cultivation impacted soil microstructure quality. Undisturbed soil samples were taken from two soil layers (0-10 and 10-20 cm) under three contrasting land uses (native vegetation-NV, pasture-PA and sugarcane-SC) in three different locations in the central-southern Brazil. Oriented thin sections (30 mu m) were used for micromorphological analysis. The total area of pores decreased following the LUC in the following order: NV > PA > SC in both soil layers. The area of large complex packing pores (>0.01 mm(2)) also decreased with the LUC sequence: NV>PA>SC. Qualitative and semi-quantitative micromorphological analysis confirmed porosity reduction was driven by the decrease in complex packing pores and that biological features decreased in the same LUC sequence as the quantitative parameters. Therefore, LUC for sugarcane expansion reduced microscale soil porosity, irrespectively of soil type and site-specific conditions, indicating that the adoption of more sustainable management practices is imperative to preserve soil structure and sustain soil functions in Brazilian sugarcane fields. (AU)

FAPESP's process: 15/50305-8 - A virtual joint centre to deliver enhanced nitrogen use efficiency via an integrated soil-plant systems approach for the UK & Brazil
Grantee:Ciro Antonio Rosolem
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/24982-7 - Understanding the role of soil (macro)biota in mediating shifts on structural stability and soil organic matter allocation in the land use change for sugarcane production
Grantee:Andre Luiz Custodio Franco
Support type: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 12/22510-8 - Soil engineering by macroinvertebrates: controls on soil organic matter storage across land use change
Grantee:Andre Luiz Custodio Franco
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 18/09845-7 - Implications of expansion and management intensification on soil ecosystem services
Grantee:Maurício Roberto Cherubin
Support type: Regular Research Grants