Amazonian deforestation and its influence on soil biotic factors and abiotic properties

Souza, Tancredo Augusto Feitosa de; Silva, Lucas Jónatan Rodrigues da; Nascimento, Gislaine dos Santos

doi:10.1016/j.pedobi.2023.150865

Cited by 10 publications

(17 citation statements)

References 51 publications

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“…We found that the biological invasion by C. madagascariensis showed the highest values of exchangeable total glomalin, LMWOAs, microbial biomass C, Na, Ca, and the SOC contents (which can create a osmotic gradient by increasing soil structure, Na and Ca release through mineral weathering, and soil salinity at semi‐arid conditions as proposed by Souza et al [5]). Other studies considering C. madagascariensis have reported that this IAPS may improve soil fertility as described in the “island of fertility” hypothesis [1, 29]. Our results agree with two previous hypotheses about: (i) “changed‐habitat” as influenced by the biological invasion promoted by C. madagascariensis [5]; and (i) “plant‐host pairing specificity” since we have found exclusive AMF species for both studied ecosystems [7, 8, 31].…”

Section: Discussionsupporting

confidence: 91%

“…A structural equation model (SEM) was performed to explore the direct effect of C. madagascariensis on AMF abundance and diversity and the indirect effects via changes in soil biochemical properties. The used variables in the SEM were previously selected by the PCA as described by Souza et al [29]. We based our confirmatory factor analysis (CFA) on PCA loading scores to specify the number of variables.…”

Section: Methodsmentioning

confidence: 99%

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Biochemical characterization and mycorrhizal fungal community of plant species in the Brazilian seasonal dry forest

et al. 2023

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Invasive alien plant species (IAPS) have the ability to change the biochemical properties and the arbuscular mycorrhizal fungal (AMF) community structure in their rhizosphere. Organic acids, microbial activity, and AMF play a key role in the invader's spread and also has interactions with the soil chemical factors. Our aim here was to assess the rhizosphere's biochemical factors, AMF community composition, and soil chemical properties associated with Cryptostegia madagascariensis (IAPS) and Mimosa tenuiflora (endemic plant species) from the Brazilian Seasonal Dry Forest. The highest values of total glomalin (5.87 mg g−1 soil), root colonization (54.5%), oxalic and malic acids (84.21 and 3.01 μmol g−1, respectively), microbial biomass C (mg kg−1), Na+ (0.080 cmolc kg−1), Ca2+ (7.04 cmolc kg−1), and soil organic carbon (4.59 g kg−1) were found in the rhizosphere of C. madagascariensis. We found dissimilarities on AMF community structure considering the studied plant species: (i) Racocetra coralloidea, Dentiscutata heterogama, Dentiscutata cerradensis, Gigaspora decipiens, and AMF's richness were highly correlated with the rhizosphere of M. tenuiflora; and (ii). The rhizosphere of C. madagascariensis was highly correlated with the abundance of Claroideoglomus etunicatum, Rhizoglomus aggregatum, Funneliformis mosseae, and Funneliformis geosporum. The results of our study highlight the importance of considering C. madagascariensis as potential hosts for AMF species from Glomerales, and a potential plant species that increase the bioavailability of exchangeable Na and Ca at semi‐arid conditions.

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Section: Discussionsupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Biochemical characterization and mycorrhizal fungal community of plant species in the Brazilian seasonal dry forest

et al. 2023

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“…We performed a non-metric multidimensional scaling (NMDS) to analyse differences among the soil quality treatments in terms of soil fauna community by using the "metaMDS" function with Bray-Curtis' matrix. A structural equation model (SEM) analysis was performed to explore the direct effect of soil quality treatments on soil fauna abundance and the indirect effects via changes in soil and litter properties (Souza et al 2023a). The used variables in the SEM were previously selected by the PCA.…”

Section: Statistical Analysesmentioning

confidence: 99%

“…Our aim here was to understand site quality levels as affected by the interaction among litter, soil -solid phase, and organisms' assemblage at A. angustifolia cultivated on Subtropical Cambisols. To this end, we analysed the soil's main chemical properties (Souza et al 2023a), litter properties (da Silva et al…”

Section: Introductionmentioning

confidence: 99%

“…, and Mg contents, and C:N ratio(Borges et al 2019;Yang et al 2022) that in turn reduced the soil pH, soil organic matter, soil nutrient content (P, K, Ca, Mg, Mn, and Zn)(Manral et al 2022), and soil biota abundance, richness, and diversity(Souza et al 2022b). These changes on litter factors, and soil properties may disrupt the soil biota community composition by altering habitat provision (e.g., when reducing the litter deposition, and litter lability), soil organic matter, and resources' availability (litter and soil nutrients)(Souza et al 2023a). The habitat and nutrient dependency hypothesis describe that the soil biota is dependent on nutrient-rich compounds provided through litter decomposition that build a soil food web composed by high trophic levels of soil organisms(Li et al 2022a).…”

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Site quality for Araucaria angustifolia plantations with subtropical Cambisol is driven by soil organism assemblage and the litter and soil compartments

Souza,

Dobner,

Nascimento

et al. 2023

Preprint

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Soil quality is a driver for biodiversity enrichment, soil fertility, and soil organic matter dynamics. Different soil quality levels at Araucaria angustifolia plantations may influence the soil organisms, and the interaction between litter and soil compartments by providing habitat and nutrients in different pathways. Our aim was to present a deeper view of the litter-soil compartments, and soil organisms community composition associated with three degrees of site quality (low-, average-, and high-quality sites), which reflect productivity levels, at the highlands of southern Brazil. The non-metric multidimensional scaling (NMDS) grouped the influence of soil quality degrees in three groups considering the dissimilarities on the soil organisms among each other. The ordination of the soil organisms, richness, and Shannon’s diversity in each studied soil quality degree had a stress value of 0.08. The structural equation models indicated that the loss of soil quality showed a negative relationship among soil organisms’ assemblage, and soil-litter compartments. Our results highlighted the importance of considering soil biotic and abiotic attributes for achieving high productivity levels from A. angustifolia plantations within its natural occurrence range.

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Seasonality and Activity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Endemic Tree Species

Lambais,

de Souza,

Késsia

et al. 2024

Journal of Basic Microbiology

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This study analyzed arbuscular mycorrhizal fungi (AMF) activity and soil chemical properties in Aspidosperma pyrifolium, Bauhinia ungulata, Caesalpinia pyramidalis, and Caesalpinia ferrea. AMF spores, root colonization, total glomalin‐related soil protein (T‐GRSP), easily extracted GRSP (EE‐GRSP), and soil chemical properties were measured four times (July 2019, 2020 and December 2019, 2020). Significant differences were observed in AMF spores, root colonization, T‐GRSP, and EE‐GRSP among the plant species and across seasons. For soil chemical properties, we observed differences among plant species. During the dry season, B. ungulata and C. pyramidalis had the highest AMF spores and root colonization (57.3 ± 0.27 spores 50 g soil−1 and 48.8 ± 1.05, respectively), whereas during the rainy season, C. pyramidalis and C. ferrea showed the highest AMF spores and root colonization (36.6 ± 0.13 spores 50 g soil−1 and 62.2 ± 1.17, respectively). A. pyrifolium showed the highest T‐GRSP in both seasons. On the basis of the soil chemical properties, we found that (i) A. pyrifolium, B. ungulata, and C. ferrea showed the highest soil organic carbon (1.32 ± 0.03 g kg−1), phosphorus (7.01 ± 0.26 mg kg−1), and soil pH (5.85 ± 0.23) and (ii) C. pyramidalis showed the highest Ca2+, Mg2+, Na+, H+ + Al3+, K+, and soil total nitrogen (1.36 ± 0.04, 0.73 ± 0.01, 3.72 ± 0.85, 4.56 ± 0.12 cmolc kg−1, 15.43 ± 1.53 mg kg−1, and 0.16 ± 0.01 g kg−1, respectively). Our results highlight the advantage of AMF spores as perennating structures over other AM fungal propagules in seasonal vegetation like Caatinga.

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Amazonian deforestation and its influence on soil biotic factors and abiotic properties

Cited by 10 publications

References 51 publications

Biochemical characterization and mycorrhizal fungal community of plant species in the Brazilian seasonal dry forest

Biochemical characterization and mycorrhizal fungal community of plant species in the Brazilian seasonal dry forest

Site quality for Araucaria angustifolia plantations with subtropical Cambisol is driven by soil organism assemblage and the litter and soil compartments

Seasonality and Activity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Endemic Tree Species

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