Soil CO2 emissions under different land-use managements in Mato Grosso do Sul, Brazil

Teodoro, Paulo Eduardo; Rossi, Fernando Saragosa; Teodoro, Larissa Pereira Ribeiro; Santana, Dthenifer Cordeiro; Ratke, Rafael Felippe; Oliveira, Izabela Cristina de; Silva, João Lucas Della; Oliveira, João Lucas Gouveia de; Silva, Natielly Pereira da; Baio, Fábio Henrique Rojo; Torres, Francisco Eduardo; Silva Junior, Carlos Antonio da

doi:10.1016/j.jclepro.2023.139983

Cited by 7 publications

(1 citation statement)

References 56 publications

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“…The diversity of the soil microbial community is influenced by different land use and management systems [8,9]. In pastures, the main land use in Brazil [10], often at some level of degradation and productivity loss [11,12], the soil microbial community is directly related to the content of SOC, nitrogen, phosphorus (P), and cations in the soil [13]. Thus, in pastures, soil microbial activity is also influenced by the intensity of grazing [14].…”

Section: Introductionmentioning

confidence: 99%

Converting Low-Productivity Pasture to Well-Managed Pasture and Silvopastoral System Cause Relevant Changes in Soil Chemical and Microbiological Characteristics

Silva,

Freitas,

Abreu

et al. 2024

Forests

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This study evaluated the chemical and microbiological soil attributes in a silvopastoral system compared to well-managed pasture, degraded pasture, and Cerrado vegetation in Brazil. A randomized design with four replications was employed to collect soil samples at seven depths. These samples were analyzed for carbon (C), nitrogen (N), pH, phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and cation exchange capacity (CEC). Soil microbial attributes were also evaluated at three depths during the dry and wet seasons. Carbon stocks in the evaluated systems varied (0–100 cm), with the highest stocks found in well-managed pasture (MP) (129.5 Mg C ha−1), followed by the silvopastoral system (SPS) (106.6 Mg C ha−1), and the lowest values in native vegetation (NV) (84.8 Mg C ha−1) and degraded pasture (DP) (63.4 Mg C ha−1). Higher pH and base sum were observed in MP. Soil microbial biomass (Cmic) did not differ between treatments during the wet season but was generally higher in MP and lower in DP during the dry season. MP effectively regulated the chemical and biological quality of the soil. The SPS demonstrated that it is possible to combine the cultivation of trees and pastures in the same area, contributing to the improvement of the chemical and biological attributes of the soil in the Brazilian Cerrado.

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Section: Introductionmentioning

confidence: 99%

Converting Low-Productivity Pasture to Well-Managed Pasture and Silvopastoral System Cause Relevant Changes in Soil Chemical and Microbiological Characteristics

Silva,

Freitas,

Abreu

et al. 2024

Forests

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Improving Soil Resilience and Crop Productivity Through Recycling of Spent Mushroom Substrate: A Transition Towards Circular Economy in Hill Agriculture

Annepu,

Pushpanathan,

Karuppasamy

et al. 2024

CLEAN Soil Air Water

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Unlike make–use–dispose practice in the linear economy, the circular economy aims to achieve make–use–recycle–reuse to realize higher environmental gains with minimum costs. In the present study, cultivation of Agaricus bisporus was attempted, and 20.4 kg of fresh mushroom yield was harvested per 100 kg of compost. The leftover spent mushroom substrate (SMS) after harvesting the mushrooms was further re‐composted to convert it into spent mushroom compost (SMC). French beans were raised in a field trial with SMC prepared by different methods, and a maximum yield of 11.15 t ha−1 was recorded with the application of SMC enriched with rock phosphate at 2% w/w. SMC had exhibited a strong de‐acidifying effect in the soils of the high‐rainfall temperate region of the Western Ghats, India. The soil organic carbon increased significantly by 29% than the untreated control, and the soil micro‐aggregates increased significantly from 6.72% in the pre‐treated soil to 37.39% in SMC‐treated soil. Soil CO2 efflux at the field conditions was found to be 26.5% lower in SMC‐treated soil (0.47 µmol m−2 s−1) than the recommended practice of application of farmyard manure (0.64 µmol m−2 s−1) in the study area. High‐throughput sequencing to study the fungal biota revealed that SMC‐applied soils were dominated by the genus Mortierella. Adopting circular economy practices in hill agriculture can lead to more resilient, sustainable, and environmentally friendly agricultural systems, which are essential for the long‐term viability of agriculture in these regions.

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Soil organic carbon stocks as driven by land use in Mato Grosso State: the Brazilian Cerrado agricultural frontier

Nwaogu,

Diagi,

Ekweogu

et al. 2024

Discov Sustain

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To address national and global demand for agro-based products, agricultural expansion has rapidly become a norm in Brazil since 1950s to date. In recent decades, agricultural expansion and technological advancement have placed the country among the top producers and exporters of agricultural products. The paradigm shifts in farming system from conventional to integrated approach has brought significant changes in land use, which consequently influenced carbon sequestration and soil organic carbon (SOC). This is more prevalent in the State of Mato Grosso, one of the most producers of food in Brazil. On this background, we hypothesized that though forests have potential for SOC stock, which decreases due to conversion to cropland but in longer-term with sustainable management, carbon might accrual significantly in cropland. Therefore, this paper aimed to unveil the nexus between long term land use and carbon stock changes and estimate future SOC stocks in Mato Grosso State of Brazil. To achieve this aim, a hybridization of machine learning and the InVEST prediction models was applied to estimate the land use changes and the SOC stocks between 1990 and 2020 and estimate for 2050. The study revealed that between 1990, 2020, and 2050, croplands increased significantly by at least 78%, pastures decreased by 32%, while forests decreased marginally by about 4% due to agricultural expansions. However, in 1990 and 2020, the SOC stock was slightly up to 147.34 Mg ha −1 , it recorded an increase after a longer-time (i.e., in 2050). This increase was substantially under the forests, and marginally in the croplands. Climate-smart agricultural systems such as crop-livestock forest, integrated crop-livestock, and other conservation agricultural practices have great potential to contribute to sustainable development by increasing the levels of carbon in agricultural soils especially,

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Soil CO2 emissions under different land-use managements in Mato Grosso do Sul, Brazil

Cited by 7 publications

References 56 publications

Converting Low-Productivity Pasture to Well-Managed Pasture and Silvopastoral System Cause Relevant Changes in Soil Chemical and Microbiological Characteristics

Converting Low-Productivity Pasture to Well-Managed Pasture and Silvopastoral System Cause Relevant Changes in Soil Chemical and Microbiological Characteristics

Improving Soil Resilience and Crop Productivity Through Recycling of Spent Mushroom Substrate: A Transition Towards Circular Economy in Hill Agriculture

Soil organic carbon stocks as driven by land use in Mato Grosso State: the Brazilian Cerrado agricultural frontier

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