Soil carbon stocks in stream-valley-ecosystems in the Brazilian Cerrado agroscape

Wantzen, Karl M.; Couto, Eduardo Guimarães; Mund, Eva E.; Amorim, Ricardo Santos Silva; Siqueira, Auberto José Barros; Tielbӧrger, Katja; Seifan, Merav

doi:10.1016/j.agee.2012.01.030

Cited by 60 publications

(41 citation statements)

References 37 publications

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“…Also, a significant decrease in soil C contents was observed by Wantzen et al (2012), especially in veredas and gallery forests in the Cerrado biome, as a result of anthropic disturbances and changes in land use.…”

Section: Resultsmentioning

confidence: 99%

Soil Organic Matter Fractions in Preserved and Disturbed Wetlands of the Cerrado Biome

Sousa

Brasil

Figueiredo

et al. 2015

Rev. Bras. Ciênc. Solo

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Veredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent to preserved (native savanna) and disturbed environments (agricultural areas and pastures) in the Cerrado biome. Soil samples were collected from the 0-10 and 10-20 cm layers along reference lines drawn along the relief following the upper, middle and lower positions of one of the slopes, in the direction of the draining line of the vereda. The soil analysis determined: total soil OC, total nitrogen and C:N ratio; C and N contents and C:N ratio in particulate and mineral-associated fractions (of SOM); fulvic acids, humic acids and humin fractions and ratio between humic and fulvic acids. The agricultural use around the veredas induced changes in the SOM fractions, more pronounced in the lower part of the slope. In the soil surface of this part, the OC levels in the humic substances and the particulate fraction of SOM, as well as total soil OC were reduced in the vereda next to crop fields. Keywords

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Section: Resultsmentioning

confidence: 99%

Soil Organic Matter Fractions in Preserved and Disturbed Wetlands of the Cerrado Biome

Sousa

Brasil

Figueiredo

et al. 2015

Rev. Bras. Ciênc. Solo

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“…The Cerrado, which occupies over 2.0 million square kilometres, is the second largest Brazilian biome (Brannstrom et al 2008;Ribeiro et al 2011) and is included among the world's 35 biodiversity hotspots due to its biological richness and the degree of anthropogenic pressure experienced by the region (Silva & Bates 2002;Wantzen et al 2012). It is home to 15 000 plant species and is the most biodiverse savannah in the world (Eiten 1982).…”

Section: Introductionmentioning

confidence: 98%

Yeasts from native Brazilian Cerrado plants: Occurrence, diversity and use in the biocontrol of citrus green mould

2015

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“…It is possible that appropriate management practices such as fertilization, soil erosion control and would enhance SOC sequestration in the study area. Comparison of soil organic carbon in the study area in a depth of 30 cm with some studies of global and regional based on their data (Hett et al, 2011;Morisada et al, 2004;Wantzen et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Monitoring of soil organic carbon and nitrogen stocks in different land use under surface water erosion in a semi-arid drainage basin of Iran

Nosrati¹,

Ahmadi²

2013

Journal of Applied Sciences and Environmental Management

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Soil organic carbon (SOC) and soil nitrogen (SN) are the principal components in soil quality assessment, and in mitigation the global greenhouse effect. In Iran, little information exists on the stocks of SOC and SN. SOC and SN stocks are a function of the SOC and SN concentrations and the bulk density of the soil that are prone to changes under land use types and soil erosion. The objective of this study was to evaluate SOC and SN stock in different land use types under surface erosion at catchment scale. In view of this, bulk density, SOC and SN concentration were measured in 39 different sampling sites of three main groups of land use affected by surface erosion namely, rangeland, crop field, and forest land at Taleghani catchment, Khoramabad, Iran. The results showed that SOC and SN stock under all land use types was significantly different (P < 0.01). SOC and SN stocks were greatest in the forest land use. The SOC stock for the 30 cm soil layer in different land uses varied in order forest (66.9 Mg ha −1 ) > rangeland (63.3 Mg ha −1 ) > crop field (47.2 Mg ha −1 ; P < 0.01). Also the SN stock had the same trend in all studied land uses. These results can be useful as a scientific basis for selecting the proper soil management as a simple and low-cost approach to mitigate the SOC and SN loss. ©JASEM

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Soil carbon stocks in stream-valley-ecosystems in the Brazilian Cerrado agroscape

Cited by 60 publications

References 37 publications

Soil Organic Matter Fractions in Preserved and Disturbed Wetlands of the Cerrado Biome

Soil Organic Matter Fractions in Preserved and Disturbed Wetlands of the Cerrado Biome

Yeasts from native Brazilian Cerrado plants: Occurrence, diversity and use in the biocontrol of citrus green mould

Monitoring of soil organic carbon and nitrogen stocks in different land use under surface water erosion in a semi-arid drainage basin of Iran

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