Effect of land uses and land cover on soil attributes in the southern Brazilian Amazon

Silva, Adriana de Avila e; Silva, Carlos Antônio da; Boechat, Cácio Luiz; Della-Silva, João Lucas; Teodoro, Paulo Eduardo; Rossi, Fernando Saragosa; Teodoro, Larissa Pereira Ribeiro; Pelissari, Tatiane Deoti; Baio, Fábio Henrique Rojo; Lima, Mendelson

doi:10.1007/s10661-022-10342-y

Cited by 5 publications

(3 citation statements)

References 51 publications

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“…Land use change affects soil fertility; therefore, natural or anthropogenic differences in each environment can result in different responses (Silva et al, 2022;Rocha et al, 2023). However, we observed some common characteristics in interpreting of pasture soil fertility at each farm (Figure 4).…”

mentioning

confidence: 75%

“…The conversion of native areas into pastures modifies soil conditions, exposing them to degradation when preceded by inadequate management, for example, by increasing the susceptibility to erosion and loss of organic matter and nutrients (Bronick & Lal, 2005;Rueda et al, 2020;Silva et al, 2022;Rocha et al 2023). As a result, productivity is reduced, and environmental impacts are aggravated.…”

Section: Introductionmentioning

confidence: 99%

“…Improving animal productivity in pasture systems requires monitoring soil nutrient stocks, fluxes, and fertilization to ensure the replacement of extracted nutrients, without which there will be inevitable nutrient depletion and pasture degradation (Rueda et al, 2020). Furthermore, adopting soil protection and conservation practices is essential for the sustainability of production systems (Silva et al, 2022).…”

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confidence: 99%

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Fertility and carbon stock in pasture and forest environments in the Southern Amazon

Silva,

S. Oliveira-Júnior

et al. 2024

Rev. bras. eng. agríc. ambient.

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Inadequate management of pasture soils in the Amazon has resulted in a predominance of degraded pastures. Considering the natural characteristics of this region can favor more appropriate strategies for sustainability, the objective of this study was to evaluate the differences in the chemical and physical attributes of pasture and forest soils in the Southern Amazon and to identify the most sensitive attributes of their fertility. Additionally, this study suggests appropriate management practices for sustainable pastures. Soil samples from the 0 to 0.20 m layer were analyzed to determine pH, exchangeable bases (calcium, magnesium, and potassium), exchangeable aluminum, potential acidity, phosphorus, organic carbon, bulk density, and texture. Pasture soils had a higher pH, calcium content, and bulk density than forest soils. However, the pasture soils had lower phosphorus and organic matter content. The soil organic carbon stocks were also lower in pasture soils, with levels 0.8 to 12 Mg ha-1 lower than in forest soils. The fertility attributes most sensitive to soil management in these pastures were phosphorus, pH, organic carbon, and bulk density. The lack of nutrients and soil and water conservation practices have contributed to the degradation of these pastures. Therefore, the recommended management for these pastures should aim to improve the organic matter content, reduce compaction, and replenish and cycle nutrients.

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confidence: 75%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Fertility and carbon stock in pasture and forest environments in the Southern Amazon

Silva,

S. Oliveira-Júnior

et al. 2024

Rev. bras. eng. agríc. ambient.

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Assessment of macronutrients status using digital soil mapping techniques: a case study in Maru’ak area in Lorestan Province, Iran

Salmanpour

Jamshidi

Fatehi

et al. 2023

Environ Monit Assess

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The present study was conducted 1: to compare generalized linear model (GLM), random forest (RF), and Cubist, 2: to produce available phosphorus (AP) and potassium (AK) maps, and 3: to identify covariates controlling mineral distribution in Maru'ak area, Lorestan Province. To ful ll the goals, the location of 173 soil samples was determined by the cLHS method, in four different land uses including orchards, paddy elds, and agricultural and abandoned elds. The performance of models was assessed by the R 2 , RMSE, and MAE. Results showed that the RF model tted better than GLM and Cubist models, and could explain 40 and 57% of AP and AK distribution, respectively. The R 2 , RMSE, and MAE for the RF model were 0.4, 2.81, and 2.43 for predicting AP; and were 0.57, 143.77, and 116.61 for predicting AK, respectively. The most important predictors selected by the RF model were valley depth and SAVI for AP and AK, respectively. The maps showed higher amounts of AP and AK in apricot orchards compared to other land uses, and no difference was observed between AP and AK content of paddy elds, agricultural and abandoned area. The higher amounts of AP and AK were related to orchard management, such as not removing plant residuals and fertilizer consumptions. It can be concluded from the present study that the orchards were the best land use for the study area, which increases soil quality and is in line with sustainable management. However, before generalizing the results, more detailed research is needed.

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Assessment spatial soil physical properties under rotational cattle grazing in Northeastern Brazil

Henrique Dias Batista,

Luiz Pontes de Almeida,

Pandorfi

et al. 2024

CATENA

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Effect of land uses and land cover on soil attributes in the southern Brazilian Amazon

Cited by 5 publications

References 51 publications

Fertility and carbon stock in pasture and forest environments in the Southern Amazon

Fertility and carbon stock in pasture and forest environments in the Southern Amazon

Assessment of macronutrients status using digital soil mapping techniques: a case study in Maru’ak area in Lorestan Province, Iran

Assessment spatial soil physical properties under rotational cattle grazing in Northeastern Brazil

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