Quantificação das emissões de CO2 pelo solo em áreas sob diferentes estádios de restauração no domínio da mata atlântica

Castellano, Gabriel Ribeiro; Moreno, Leandro Xavier; Menegário, Amauri Antônio; Govone, José Sílvio; Gastmans, Didier

doi:10.21577/0100-4042.20170036

Cited by 4 publications

(5 citation statements)

References 24 publications

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“…This area would be functioning more as a source than a drain of atmospheric CO 2 due to the absence of vegetation cover, in addition, this bare soil caused by traditional agriculture, the burning of crop remains is intensively used, intensifying the loss of organic matter by the soil, which makes agricultural sustainability unfeasible (Silva et al, 2020;Moura et al, 2015). According to Castellano et al (2017), the main soil characteristics that influence emissions include air temperature and moisture, which can be associated with the type of cover in each area. In addition, cultivated areas can cause more intense soil respiration due to the use of chemical fertilizers compared to the application of biofertilizers in sustainable systems (Mátyás et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

“…According to Pezarico et al (2013), these characteristics in this environment, with abiotic conditions similar to the FO, such as a greater diversity of species, make this system the closest to the ideal characteristics, considering the FO as a benchmark for a condition of balance and stability. Castellano et al (2017) state that moisture can be one of the main controllers of emissions in different areas. This significant correlation between moisture and soil respiration can be explained by the fact that microbial activity is regulated by moisture due to the chemical reactions involved in the decomposition of organic matter.…”

Section: Resultsmentioning

confidence: 99%

“…Some studies have shown that well-managed agroecosystems are alternatives with a high carbon sequestration capacity, and with the right practices, they can keep it in the soil until it reaches its final equilibrium (West and Post, 2002;Armstrong et al, 2003;Luo and Zhou, 2006). In the quest to understand the processes that influence the global carbon balance and, consequently, global warming, several studies and surveys have been conducted in recent decades seeking to characterize CO 2 efflux through the soil in the most diverse biomes on the globe (Castellano et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Carbon Dioxide Efflux in Different Land Use Typologies

Lira Vital,

Barbosa,

Gomes

et al. 2023

Rev. Agric. Neotrop.

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Management systems are crucial for soils functioning as a drain or source of greenhouse gas emissions. In this sense, among the alternatives for reducing the precursors of the greenhouse effect are integrated agricultural production systems, particularly Agroforestry Systems. These integrated systems maximize the use of biological cycles, soil, and animal waste, reducing agrochemicals and improving the condition of the rural populations involved. The present study aimed to evaluate the CO2 efflux in different land use types. The study was conducted in four agroecosystems: Forest (FO), Agroforestry Systems (AFS), Mandala (MD), and Degraded area (DA). To quantify the CO2 emanating from the soil, 10 mL of 0.5 N KOH aqueous solution is used and titrated using 0.1 N HCl, phenolphthalein, and 1% methyl orange as an indicator. The CO2 concentration from 5:00 am to 5:00 pm was lower. The lowest CO2 production occurred in FO (82.7 CO2 mg m-2 h-1), statistically differing from the other areas that obtained a CO2 rate higher than 140 mg m-2 h-1. As for kinetics, it was observed in all areas that the greatest release of CO2 during the day occurred at 7:00 am, and this release decreased as the soil temperature increased. The greatest release of CO2 and the highest temperatures occurred in DA, showing that these systems with anthropic modifications can be considered CO2 emitters however, systems closer to the natural ecosystem, such as the AFS, will store carbon in the soil, functioning as a carbon store. Therefore, to reduce CO2 emissions from agricultural activities, it is necessary to use systems that imitate natural ecosystems.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of Carbon Dioxide Efflux in Different Land Use Typologies

Lira Vital,

Barbosa,

Gomes

et al. 2023

Rev. Agric. Neotrop.

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“…In the three studies, the authors attributed the highest emission peaks in the native vegetation area to the higher content of TOC due to the better conservation stage, which allows greater microbial activity. It is important to highlight that the differences in vegetation cover reflect C-CO2 emission rates (Castellano et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Impact of Different Use Systems on Total and Mineralizable Organic Carbon in a Sandy Soil

Lopes

Rosset

Ozório

et al. 2022

Rev. Agric. Neotrop.

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This study aimed to evaluate the impact of different land use systems on total organic carbon (TOC) contents and stocks and the daily and total evolution of mineralizable carbon (C-CO2) in a sandy-textured Argissolo Vermelho Amarelo. The study was carried out in Eldorado, MS, in a reference area of Native Forest (NF) and three managed areas: Permanent Pasture (PP), Direct Sowing b(DS), and an area of Private Natural Heritage Reserve (PNHR) in the process of natural regeneration. Soil samples from the 0.0-0.05, 0.05-0.10, and 0.10-0.20 m layers were collected to assess soil density (Sd), TOC contents, with subsequent calculations of the stratification index (SI), carbon stock (StockC), and variation of the total organic carbon stock (∆StockC), in addition to the determination of daily emission and calculation of total C-CO2 accumulation. The NF area had the highest levels and stocks of TOC, reaching 16.42 g kg-1 and 20.90 Mg ha-1, respectively. On the other hand, the PP and PNHR areas had the lowest content and StockC. The areas of PP, DS, PNHR, and NF presented SI values of 1.08, 1.13, 1.32, and 1.61, respectively. The NF area showed higher peaks and a higher total accumulation of C-CO2, inferring the highest biological activity in this area. By multivariate analysis, none of the managed areas was close to the NF in quality. The worst results considering the evaluated attributes were observed in the areas of PP and PNHR due to the stage of degradation of these areas as a result of exploration and land use history.

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“…En la selva amazónica, también se encontraron relaciones entre la emisión de CO2 y la humedad del suelo, durante la época seca (R 2 = 0.76) y lluviosa (R 2 = 0.78). Castellano et al (2017) encontraron en la Parcela 23, las emisiones de CO2 oscilaron entre 0.61 y 3.86 mol CO2 m -2 s -1 y mostraron una correlación lineal significativa con la humedad del suelo (R 2 = 0.55), similar a los resultados encontrados en las parcelas evaluadas.…”

Section: Relación Entre Las Variables Ambientales Con El Secuestro De...unclassified

Efeito do manejo de plantações de eucalyptus globulus em alguns indicadores de qualidade do solo

Pérez-Díaz

Tornisielo

2023

RHE

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O experimento foi realizado no Centro de Estudos Ambientais (CEA) no Brasil. Foram avaliadas três parcelas: P-23 (com espécies nativas do Brasil), P-15 (desmatamento) e P-Eucalipto (50 anos de plantio), pertencentes à Floresta Estadual Edmundo Navarro de Andrade (FEENA) o objetivo foi avaliar o efeito do manejo do eucalipto em alguns indicadores de qualidade do solo. Foram instaladas parcelas de 900 m2 com 17 pontos de coleta. Foram avaliados os indicadores de qualidade do solo: pH, MO (%), N (%), respiração biológica (umol CO2m-2s-1), bactérias e fungos (UFC). Os resultados mostraram que os fatores ambientais e indicadores de qualidade do solo sofreram maiores variações na parcela P-15. Diferenças significativas foram encontradas entre os tratamentos em termos de matéria orgânica, N do solo (%), número de bactérias e fungos e quantidade de CO2 liberado no solo. Os indicadores de qualidade do solo variaram de acordo com o manejo da floresta, sendo encontrada relação entre a produção de CO2 e a relação C/N, C % e matéria orgânica do solo. O uso de indicadores de qualidade do solo pode ser uma ferramenta rápida para avaliar o efeito do manejo de plantações florestais.

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Quantificação das emissões de CO2 pelo solo em áreas sob diferentes estádios de restauração no domínio da mata atlântica

Cited by 4 publications

References 24 publications

Comparison of Carbon Dioxide Efflux in Different Land Use Typologies

Comparison of Carbon Dioxide Efflux in Different Land Use Typologies

Impact of Different Use Systems on Total and Mineralizable Organic Carbon in a Sandy Soil

Efeito do manejo de plantações de eucalyptus globulus em alguns indicadores de qualidade do solo

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