Spatial distribution of soil carbon stocks in the Cerrado biome of Minas Gerais, Brazil

Morais, Vinícius Augusto; Ferreira, Gabriel W.D.; Mello, José Márcio de; Silva, Carlos Alberto; Mello, Carlos Rogério de; Araújo, Emanuel José Gomes de; David, Hassan Camil; Silva, Alessandra Calegari da; Scolforo, José Roberto Soares

doi:10.1016/j.catena.2019.104285

Cited by 12 publications

(7 citation statements)

References 41 publications

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“…Increase in soil C contents was preferentially driven by C input from the added biochar rather by the variation of clay and OM contents of soils. The C contents reported in this study for the low-ash (SB and ES) biochar-amended soils are possibly the highest already reported for non-flooded and artificially managed soils found in the warm and rainy Brazilian landscape, considering the C contents already reported for soils of the "cerrado" biome of Minas Gerais [68].…”

Section: Soil Csupporting

confidence: 52%

Enhancing Cation Exchange Capacity of Weathered Soils Using Biochar: Feedstock, Pyrolysis Conditions and Addition Rate

Domingues¹,

Sánchez-Monedero

Spokas

et al. 2020

Agronomy

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The addition of alkaline and high-cation exchange capacity (CEC) biochars is a suitable strategy to increase the CEC of weathered soils. The aim of this study was to evaluate the effect of biochar from different feedstocks and pyrolysis temperatures on the CEC of two contrasting Oxisols. Biochars produced from chicken manure (CM), eucalyptus sawdust (ES), coffee husk (CH) and sugarcane bagasse (SB),plus a control (without biochar), at 350, 450, and 750 °C were mixed with the soils at 2; 5; 10 and 20% (w/w) and incubated for 9 months. Feedstock, pyrolysis temperature and addition rate of biochar were key factors controlling the alteration of soil CEC. The CH biochar pyrolyzed at 350 °C was the most effective matrix at increasing soil CEC. In a rate-dependent way, ES and SB biochars increased C contents of both soils without improving soil CEC. The efficiency of high-ash biochars in enhancing soil CEC in both Oxisols was limited by the alkalization caused by high rates of CH and CM biochars. The increase in CEC is soil-dependent and modulated by high-ash biochar CEC and application rate, as well as by the original soil CEC.

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Section: Soil Csupporting

confidence: 52%

Enhancing Cation Exchange Capacity of Weathered Soils Using Biochar: Feedstock, Pyrolysis Conditions and Addition Rate

Domingues¹,

Sánchez-Monedero

Spokas

et al. 2020

Agronomy

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“…Dawud et al (2016) indicated that tree species diversity increases soil carbon stocks and nutrient in a mixed stand including conifers and broad-leaved trees in Poland. Morais et al (2020) asserted that the soil C stocks are positively related with elevation, silt and clay amounts, and are negatively associated with the mean annual temperature and total annual precipitation. Y.…”

Section: Introductionmentioning

confidence: 99%

“…Morais et al. (2020) asserted that the soil C stocks are positively related with elevation, silt and clay amounts, and are negatively associated with the mean annual temperature and total annual precipitation. Y. Zhang et al.…”

Section: Introductionmentioning

confidence: 99%

Assessing soil organic carbon, N and P stocks and its relation to soil properties in artificial canopy gaps in a managed oriental beech (Fagus orientalis L.) forest^#

Amolikondori

Vajari

Feizian

2022

J. Plant Nutr. Soil Sci.

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Background In the Hyrcanian temperate forests, different canopy gaps sizes have been created by logging under silvicultural methods. Understanding the effects of gaps on forest ecosystems can help in the planning and decision‐making of forestry practices. Variations in ecological conditions caused by canopy gaps may have an impact on the forest stand, particularly soil nutrients. Aims The purpose of the present research was to investigate the changes in soil organic carbon (SOC), total nitrogen (N) and phosphorus (P) stocks under different gap sizes in the Hyrcanian oriental beech forest. Methods We measured SOC, N and P stocks of soil at the depth of 0–20 cm among 15 artificial gaps along with adjacent closed stand which was created by single‐tree selection system in oriental beech stand, northern Iran. In the center and four cardinal positions of the edge of gaps as well as in the four adjacent closed canopy forests at the distance of 20 m from gaps, the soil sampling was performed. Results The difference in C, N and P stocks among the artificial canopy gaps was statistically significant, and higher mean values were observed in large gaps. No significant difference was observed between gaps and adjacent closed stands with regard to soil C, N and P stocks. At artificial gaps and closed stands, the SOC stock was negatively correlated with clay and positively correlated with bulk density, sand, N and OC. With increasing bulk density, sand, N, P, and OC, N stock was increased in gaps. In gaps, SOC and P stocks were both positively related to soil microbial C and soil microbial P, respectively. Conclusion Generally, it can be stated that there are similar relative ecological conditions between artificial gaps and closed stands, and the interaction among soil properties in gaps demonstrates gap dynamics in deciduous, broad‐leaved beech forest.

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“…The Cerrado biome includes a gradient of physiognomies from pure grasslands to open and closed‐canopy woodlands and gallery forests (Coutinho, 1990). Cerrado vegetation is characterized by the presence of deep roots developed as a response to long dry periods, fire, and extremely weathered soils (Morais et al., 2020). It is estimated that the belowground biomass is twice as large as the aboveground biomass, leading some ecologists to describe the Cerrado as an “inverted forest.”…”

Section: Introductionmentioning

confidence: 99%

Tracking Changes in Vegetation Structure Following Fire in the Cerrado Biome Using ICESat‐2

2023

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Fires are an integral part in the Earth system, causing widespread changes in ecosystem structure and function, atmospheric chemistry, and climate (Bowman et al., 2009). Fire-induced changes in the horizontal and vertical structure of vegetation drive substantial shifts in ecosystem carbon storage, surface energy balance, and species' habitats (Frolking et al., 2009). Savannas and grasslands, which occupy about 20% of the land surface and store 15% of vegetation carbon stocks, account for more than 80% of the global annual burned area (Giglio et al., 2013). Fires have played an important role in the evolution of savannas and grasslands across the globe (Beerling & Osborne, 2006;Edwards et al., 2010;Van der Werf et al., 2010). Widespread changes in savanna fire regimes in response to human activity (Andela et al., 2017) and climate (Abatzoglou et al., 2019); therefore, have the potential to alter vegetation structure and carbon storage in savanna ecosystems.

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Spatial distribution of soil carbon stocks in the Cerrado biome of Minas Gerais, Brazil

Cited by 12 publications

References 41 publications

Enhancing Cation Exchange Capacity of Weathered Soils Using Biochar: Feedstock, Pyrolysis Conditions and Addition Rate

Enhancing Cation Exchange Capacity of Weathered Soils Using Biochar: Feedstock, Pyrolysis Conditions and Addition Rate

Assessing soil organic carbon, N and P stocks and its relation to soil properties in artificial canopy gaps in a managed oriental beech (Fagus orientalis L.) forest^#

Tracking Changes in Vegetation Structure Following Fire in the Cerrado Biome Using ICESat‐2

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Spatial distribution of soil carbon stocks in the Cerrado biome of Minas Gerais, Brazil

Cited by 12 publications

References 41 publications

Enhancing Cation Exchange Capacity of Weathered Soils Using Biochar: Feedstock, Pyrolysis Conditions and Addition Rate

Enhancing Cation Exchange Capacity of Weathered Soils Using Biochar: Feedstock, Pyrolysis Conditions and Addition Rate

Assessing soil organic carbon, N and P stocks and its relation to soil properties in artificial canopy gaps in a managed oriental beech (Fagus orientalis L.) forest#

Tracking Changes in Vegetation Structure Following Fire in the Cerrado Biome Using ICESat‐2

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Assessing soil organic carbon, N and P stocks and its relation to soil properties in artificial canopy gaps in a managed oriental beech (Fagus orientalis L.) forest^#