Agrosilvopastoral Systems and Well-Managed Pastures Increase Soil Carbon Stocks in the Brazilian Cerrado

Freitas, Igor Costa de; Ribeiro, Juliana Martins; Araújo, Nayara Christina Almeida; Santos, Maurinho Luiz dos; Sampaio, Regynaldo Arruda; Fernandes, Luiz Arnaldo; Azevedo, Alcinei Místico; Feigl, Brigitte Josefine; Cerri, Carlos Eduardo Pellegrino; Frazão, Leidivan Almeida

doi:10.1016/j.rama.2020.08.001

Cited by 40 publications

(24 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…SOC measurements from this study agreed with other research in the South American savannas. The differences in SOC stocks between native savanna and Brachiaria pastures found in this study were similar to those found in the Brazilian Cerrado (Braz et al, 2013;de Freitas et al, 2020). Six paired comparisons in this study are also in line with the de Oliveira et al ( 2022) analysis of 169 paired sites in Brazil, suggesting that grassland recovery and improvement can accumulate substantial SOC.…”

Section: Discussionsupporting

confidence: 89%

Soil carbon storage potential of acid soils of Colombia's Eastern High Plains

Hyman

Castro

Silva

et al. 2022

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

Improving soil organic carbon (SOC) storage enhances soil quality and mitigates climate change. Agricultural and livestock specialists increasingly view tropical grasslands as a potential target for storing more soil carbon while boosting productivity. Earlier research in the 1990s showed the promise of improving SOC storage in the Eastern High Plains of Colombia. But these studies were limited to two experimental stations, without focusing on conditions on farms or under variable management. This research examined whether those early studies did indeed reflect possibilities for improving SOC storage and livestock productivity. We measured SOC stocks at one of the experiment stations from previous research and on farms throughout the study area in Colombia's Eastern High Plains. Complementarily our team sampled other predominant land uses to map SOC storage across the nearly 1 million ha study area. Using that information, we also constructed scenarios suggesting changes in SOC and productivity based on land-use changes. The high SOC accumulation found at experimental sites in the 1990s declined 24 years later. However, SOC storage was over 27 Mg ha−1 yr−1 higher than reference native savanna sites, with an accumulation rate of 0.96 Mg ha−1 yr−1. On farms under variable management, improved pastures stored 10 Mg ha−1 more SOC than degraded pastures or native savanna. For the whole region, we estimate that carbon storage observed across soils and land use of the 1 million ha study area could store 0.08 Gt of carbon down to 1 m depth, with wide variation across the region. While the SOC measured in grasslands in the early 1990s did not persist under inadequate management over the period of two decades, the potential to accumulate SOC of Colombia's Eastern High Plains through appropriate management is high, pointing to a sustainable livestock strategy that boosts productivity and reduces emissions.

show abstract

Section: Discussionsupporting

confidence: 89%

Soil carbon storage potential of acid soils of Colombia's Eastern High Plains

Hyman

Castro

Silva

et al. 2022

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

show abstract

“…The increase in OC and nutrient content and stock refers to the strips closer to the eucalyptus trees, which corresponds to the environments of lower light availability used in the present study. The increase in OC stocks in the soils of SSP is partially attributed to the constant decomposition of burlap and roots of the tree component (Abreu et al 2020;Freitas et al 2020). Studies have reported that well-managed grass pastures, which have C4-type carbon-xing metabolism, can increase soil OC levels due to their fasciculate root system, high biomass production, and no soil disturbance (Freitas et al 2020).…”

Section: Resultsmentioning

confidence: 99%

“…The increase in OC stocks in the soils of SSP is partially attributed to the constant decomposition of burlap and roots of the tree component (Abreu et al 2020;Freitas et al 2020). Studies have reported that well-managed grass pastures, which have C4-type carbon-xing metabolism, can increase soil OC levels due to their fasciculate root system, high biomass production, and no soil disturbance (Freitas et al 2020). In Tables 1 and 3 it is evidenced that the correct management of marandu grass, with emphasis on the height of 50 cm in pre-grazing, ensures improvements in soil quality, which may re ect in productivity and forage quality.…”

Section: Resultsmentioning

confidence: 99%

“…OC, N and SOM contents (g kg− 1 ) as a function of incident light availability in the environments and management height of marandu grass in pre-pasture in forest grazing system and monoculture in the Brazilian CerradoThese results indicate that marandu grass forage plants maintained at 50 cm height and shaded with eucalyptus in the integrated system increase the contents of OC, N and SOM, compared to marandu grass monoculture. Increases in OC and N stocks in topsoil layers have been evidenced in studies introducing SSP in the Brazilian Cerrado(Almeida et al 2021;Frazão et al 2021), but without evaluating the in uence of pasture management.The increase in soil OC and N contents in SSP occurs due to the constant contribution of litter, root decomposition, greater presence of microorganisms and with consequent greater nutrient cycling(Abreu et al 2020;Freitas et al 2020). The SSP present higher levels of OC in the soil, being attributed mainly to the presence of the tree component(Schinato et al 2023).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Management of marandu grass pasture increases soil carbon and nitrogen stocks in forest grazing systems in the Brazilian Cerrado

Anésio

Santos

Frazão

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

This paper aimed to evaluate the influence of management practices of marandu grass, at eucalyptus shading levels in a forest grazing system, on organic carbon (OC) and nitrogen (N) stocks, and on soil chemical characteristics in the Brazilian Cerrado. The experimental design adopted was entirely random with five repetitions. In the plots were allocated the environments with different light availability, and a treatment with marandu grass in full sun. The management of marandu grass pasture was distributed in the subplots with pre-pasture at 30, 40, 50, and 60 cm high. Evaluations were repeated in two crop cycles in year 1 and year 2. Soil chemical characteristics, OC and N stocks were analyzed. The management of marandu grass at 50 cm height in the forest grazing system provided higher levels of OC, N, organic matter in the soil and an increase in fertility, compared to monoculture pasture, with repercussions in two years. The integration of eucalyptus and marandu grass pasture contributes with greater stocks of OC and N in the soil strips closest to the tree row, due to greater nutrient cycling. Marandu grass in forest grazing systems with shading varying from 40 to 60% present greater efficiency and maintenance of soil chemical attributes, demonstrating greater sustainability compared to monoculture pastures.

show abstract

“…Outro sistema que merece destaque é o ILF, que demonstrou maior proximidade da NV pelo PC1 da análise de componentes principais e pelo SPQI. Tal sistema se diferencia do RMS pela presença de árvores nativas de cinco espécies, cultivadas em renques de três linhas (2.5 x 2.5 m), distanciados entre si em 17 m. A presença das árvores parece estar contribuindo para a manutenção da qualidade física do solo nessa área, o que pode ser explicado pelo maior aporte de serrapilheira à superfície e pelas raízes vivas e em decomposição, que formam fluxos preferenciais verticais de água no solo (Freitas et al, 2020;Noguchi et al, 1999Noguchi et al, , 1997.…”

Section: Discussionunclassified

Qualidade física do solo em pastagens sob diferentes níveis de intensificação e integração em um Latossolo brasileiro

Fernandes¹

View full text Add to dashboard Cite

Qualidade física do solo em pastagens sob diferentes níveis de intensificação e integração em um Latossolo brasileiro / João Victor Marçal Fernandes. --versão revisada de acordo com a Resolução CoPGr 6018 de 2011. --Piracicaba, 2022. 47 p. Dissertação (Mestrado) --USP / Escola Superior de Agricultura "Luiz de Queiroz". 1. Manejo e conservação do solo 2. Funcionamento físico-hídrico do solo 3. ILPF 4. Árvores nativas I. Título

show abstract

Agrosilvopastoral Systems and Well-Managed Pastures Increase Soil Carbon Stocks in the Brazilian Cerrado

Cited by 40 publications

References 53 publications

Soil carbon storage potential of acid soils of Colombia's Eastern High Plains

Soil carbon storage potential of acid soils of Colombia's Eastern High Plains

Management of marandu grass pasture increases soil carbon and nitrogen stocks in forest grazing systems in the Brazilian Cerrado

Qualidade física do solo em pastagens sob diferentes níveis de intensificação e integração em um Latossolo brasileiro

Contact Info

Product

Resources

About