Chemical and Microbiological Attributes Under Different Soil Cover

Novak, Elaine; Carvalho, Laércio Alves de; Santiago, Etenaldo Felipe; Portilho, Irzo Isaac Rosa

doi:10.1590/01047760201723012228

Cited by 26 publications

(26 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Table 3 Correlations between the microbiological, physical and chemical variables of the soil from the canonical correlation analysis. Low MBC values indicated a lower efficiency in the process of carbon conversion, usually followed by high values of soil basal respiration (SBR) (Novak et al, 2017). The carbon contained in the microbial biomass is the initial destination of this element in the process of soil transformation (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…These findings may have been due to the action of liming in the management practices studied, which influenced the chemical attributes, especially those related to soil acidity and microbial biomass carbon (Pereira et al, 2013). Novak et al (2017) observed that biological and chemical attributes, such as MBC, SBR, Mg and K, were the discriminatory variables in PC1 and were responsible for mainly separating the native vegetation areas (Cerrado and Mata Atlântica), with the two first principal components representing 77.42% of the variance contained in the original set of data. Such observations support the results presented in this work (Fig.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Multivariate approach of soil attributes on the characterization of land use in the southern Brazilian Amazon

Carvalho

Panosso

Teixeira

et al. 2018

Soil and Tillage Research

View full text Add to dashboard Cite

Determination of physical, chemical and biological attributes with individual analyses is inadequate for improving the understanding of soil conditions as a function of land-use change (LUC) in comparison to the natural state of soil. For a more accurate soil condition diagnostic, it is necessary to consider various indicators related to these characteristics, which requires the use of multivariate statistical analysis. The aim of this work was to characterize, through multivariate analysis, different types of LUCs in an Oxisol as a function of the physical, chemical and biological attributes and to clarify the relationship of these attributes with the quality of the soil in comparison to these attributes in natural soil conditions, in the southern Amazon in Brazil. The land uses evaluated in the municipality of Alta Floresta, state of Mato Grosso (MT), Brazil, were native amazon forest (ma), degraded pasture (pd), managed renewed pasture (pn), permanent preservation area in recovery (app), crop area (rice), forage sugarcane (ca) and reforested area with eucalyptus (eu). To characterize the physical and chemical soil attributes, samples were collected in each land-use area, at depths of 0-0.10 and 0.10-0.20 m, and the determination of soil microbial activity (biological attributes) was evaluated at a depth of 0-0.10 m. The interrelationship between the analyzed attributes was described by multivariate techniques, which included hierarchical and non-hierarchical cluster analyses, principal component analysis, canonical correlation, and structural equation modeling. The multivariate approach for the analysis of soil attribute data was efficient in the identification of anthropogenic actions on areas in comparison to natural conditions. Together, the cluster analysis and principal components analysis identified two groups that differed mainly in terms of anthropic operations of soil tillage and liming. The land use that was most similar to the natural condition was degraded pasture, which was mainly due to K and H + Al contents, soil microporosity and soil basal respiration. Structural equation modeling indicated that the latent factor soil chemical attributes had three times greater interference (-0.5828) than the latent factor soil physical attributes (0.1735) on the latent factor soil biological attributes. Therefore, anthropic actions, especially the liming, modified soil acidity conditions, affecting the microorganisms of its flora and changing the native fungal community of the soil that was evaluated. large areas, mainly through the inadequate conversion of natural environments into agricultural areas (Fonseca et al., 2007; Rojas et al., 2016). The main impact of LUC is on in the soils, which are directly responsible for the sustainability and productivity of natural and agricultural ecosystems (Castilho et al., 2016; Novak et al., 2017; Sanabria et al., 2016). Studying the physical, chemical and biological attributes of soil in different applications and comparing these attributes to those in areas

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Multivariate approach of soil attributes on the characterization of land use in the southern Brazilian Amazon

Carvalho

Panosso

Teixeira

et al. 2018

Soil and Tillage Research

View full text Add to dashboard Cite

show abstract

“…A restauração de áreas degradadas envolve uma série de medidas que buscam, inicialmente, minimizar os efeitos da degradação e, posteriormente, implantar metodologias corretivas, que visam à rápida recuperação do ambiente (Novak et al, 2017). Entretanto, antes da adoção das diferentes medidas mitigadoras, é de extrema importância a avaliação dos atributos do solo, pois, retratam o seu diagnóstico atual e verificam se os métodos empregados estão adequados às condições específicas da atividade (Audeh et al, 2011) e da região, tornando possível um melhor planeamento e execução de práticas de uso e ocupação.…”

Section: Introductionunclassified

Variação temporal dos atributos microbiológicos do solo sob diferentes usos

Novak¹,

Carvalho²,

Santiago³

et al. 2018

Rev. Ciênc. Agr.

Self Cite

View full text Add to dashboard Cite

Compreender o comportamento e a dinâmica dos microrganismos do solo ajuda a avaliar as práticas de uso do solo que mantém e/ou melhoram a qualidade deste ao longo do tempo. O objetivo deste trabalho foi avaliar a qualidade do solo de diferentes áreas com base na biomassa microbiana, respiração basal e índices derivados (quociente metabólico e quociente microbiano) em dois períodos de amostragem. Quatro amostras compostas oriundas de três subamostras de solo foram coletadas nos anos de 2012 e 2014 na camada de 0,00-0,10 m em sete áreas distintas, sendo cinco áreas em restauração ecológica, um remanescente de floresta nativa e uma área de cultivo de cana-de-açúcar. Os dados foram submetidos à análise de variância, aplicando-se fatorial, sendo as médias comparadas pelo teste de Tukey, a 5% de significância e análise multivariada, por meio da agrupamento (Cluster Analysis). Os resultados indicam que, embora o tempo de resiliência das áreas em restauração ecológica seja relativamente curto, o desenvolvimento da cobertura vegetal e o estabelecimento da comunidade microbiana foram importantes para promover a melhoria da qualidade do solo.

show abstract

“…The soil physical and chemical properties have a significant influence on plants growth and development (Muenchow et al 2013;Qian et al 2014;An et al 2015), and plants mutually play clear and predictable role in determining the soil nutrient (Fu et al 2015;Novak et al 2017). The soil properties cause heterogeneity over space and time and regulate the vegetation abundance (Silva and Batalha 2008;Brinkmann et al 2009;Otýpková et al 2011;Zhang et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Short Communication: Floristic composition and relationships between plant species abundance and soil properties in common hazel (Corylus avellana) mountainous forest of northern Iran

et al. 2018

View full text Add to dashboard Cite

Bin-Salman SA, Amasha RH, Jastaniah SD, Aly MM, Altaif K. 2018. Isolation, molecular characterization and extracellular enzymatic activity of culturable halophilic bacteria from hypersaline natural habitats. Biodiversitas 19: 1828-1834. Saline habitats, like the Dead Sea, are unusual extreme environments, due to their extreme salinity. Most saline habitats originate from the evaporation of seawater, and have a nearly neutral to slightly alkaline pH (such as the Red Sea (pH8.3) and Arabian Gulf, pH8.3). Ten halophilic bacterial strains (two Gram-negative) belonging to the family of Halomonadaceae and (eight Gram-positive), belonging to the family of Bacillaceae, were isolated from the Red Sea, Arabian Gulf, and Dead Sea by subjecting the isolates to a high salinity medium, followed by identification using 16S rRNA gene sequencing. Four of isolates were designated on the basis of their tolerance to high salinity; SBR1 exhibited 97% homology to Halomonas aquamarina, SBR2 showed 97% homology to Sediminibacillus sp., (Red Sea), SBA9 exhibited 94% homology to Halobacillus sp., (Arabian Gulf) and SBD17 gave 98% homology to Halobacillus dabanensis (Dead Sea). The isolates were also characterized by their physiological parameters, SBR1 showed optimum growth at 30°C, pH8.5 and1.5M NaCl, SBR2 at 30°C, pH6.0 and 1M NaCl. Optimum conditions for SBA9 were 35°C, pH6.5 and 1M NaCl and for SBD17, 37°C, pH7.0 and 1M NaCl.

show abstract

Chemical and Microbiological Attributes Under Different Soil Cover

Cited by 26 publications

References 60 publications

Multivariate approach of soil attributes on the characterization of land use in the southern Brazilian Amazon

Multivariate approach of soil attributes on the characterization of land use in the southern Brazilian Amazon

Variação temporal dos atributos microbiológicos do solo sob diferentes usos

Short Communication: Floristic composition and relationships between plant species abundance and soil properties in common hazel (Corylus avellana) mountainous forest of northern Iran

Contact Info

Product

Resources

About