Variability in soil shrinkage along forest and pasture toposequences in Amazonia

Zenero, Mariana Delgado Oliveira; Grimaldi, Michel; Cooper, Miguel

doi:10.1016/j.geoderma.2018.12.013

Cited by 5 publications

(6 citation statements)

References 58 publications

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“…This seemed to have been exacerbated by the dissimilarity of several hydrostructural variables such as the initial water content W max , the soil volume after shrinkage V 0 , and the slope of the basic phase K bs . This high variability contrasts with laboratory experiments under controlled conditions (Boivin et al, 2007;Deeb, Grimaldi, Lerch, Pando, Podwojewski, et al, 2016;Milleret et al, 2009), but it does match the results of Zenero et al (2019) in field conditions. Zenero et al (2019) found such variability even from samples that were taken from the same sampling location and even after eliminating the potential source of heterogeneity related to the abundance of coarse elements.…”

Section: Variability In Soil Shrinkagecontrasting

confidence: 75%

“…This high variability contrasts with laboratory experiments under controlled conditions (Boivin et al, 2007;Deeb, Grimaldi, Lerch, Pando, Podwojewski, et al, 2016;Milleret et al, 2009), but it does match the results of Zenero et al (2019) in field conditions. Zenero et al (2019) found such variability even from samples that were taken from the same sampling location and even after eliminating the potential source of heterogeneity related to the abundance of coarse elements. It is worth noting that, despite the high variability, significant differences were revealed regarding some variables (total soil shrinkage, soil specific volume after shrinkage, specific volumes of plasma and structural pores, swelling capacity of plasma, and the slope of structural and residual phases) affecting SSCs shape in the current study.…”

Section: Variability In Soil Shrinkagecontrasting

confidence: 75%

“…Additionally, Boivin (2007) emphasized that the physical variables obtained from SSC showed small standard errors compared with other physical methods, such as water retention curve and hydraulic conductivity. Finally, several studies highlight the importance of applying SSC due to its reactivity to soil compaction (Boivin, Schäffer, et al, 2006;Fontana et al, 2015;Schäffer et al, 2008), land use change (Dörner et al, 2010;Zenero et al, 2019), tillage effect (Fontana et al, 2015;Mallory et al, 2011), the quantity of organic C (Boivin et al, 2009;Deeb, Grimaldi, Lerch, Pando, Podwojewski, et al, 2016), the quantity of clay and the Fe/clay ratio (Braudeau et al, 2005), the quality of clay (Boivin et al, 2004), cation exchange capacity (CEC; Yule & Ritchie, 1980), biological activity (e.g., macrofauna and rhizosphere; Deeb, Grimaldi, Lerch, Pando, Gigon, et al, 2016;Milleret et al, 2009), and crop production (Chan, 1982;McGarry & Daniells, 1987;Reeve & Hall, 1978). The SSC will be analyzed to characterize and understand the influence of three different residue management practices (burning and removing any residue left in the field after harvest; burning and scattering the residue left in the field after harvest; and no burning and scattering all residue material left in the field after harvest) combined with the presence or absence of chemical fertilizers in a long-term sugarcane experimental site.…”

Section: Core Ideasmentioning

confidence: 99%

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Long‐term effect of sugarcane residue management and chemical fertilization on soil physical properties in South Africa

Deeb

Grimaldi

Aroui

et al. 2021

Soil Science Soc of Amer J

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Sugarcane (Saccharum officinarum L.), an intensive, long-term, monoculture, economical crop in South Africa, is known to degrade soil characteristics. Soil structure, a key indicator of soil health and biomass production potential, is manageable by agricultural practices. This study aims to evaluate the effect of crop residue management practices (mulching, burning with residues scattered or removed) and mineral fertilization (with or without) on soil structure by analyzing soil shrinkage curves (SSCs) and other soil physical and chemical properties in a long-term sugarcane trial established in 1939. The SSC provides descriptive structural soil data by differentiating and characterizing two pore systems (plasma and structural pores). By analyzing the SSC of 24 plots (four replicates each treatment), residue management and fertilization practices were found to have statistically and physically significant effects on hydrostructural variables. Partial redundancy analysis showed that residue management practices had a slightly higher effect (19% of total variance) on hydrostructural variables compared with fertilization (12%). The main hydrostructural variables representing the management effect were total soil shrinkage, specific volume, and swelling capacity of the plasma, which were higher in mulched and/or unfertilized plots, indicating that soil was less compact, and shrinkage was more intense, including at the plasma level. The stronger structural dynamics and aggregate stability of the soil were explained by the behavior of the primary aggregates (peds), which were more porous and reactive during the drying process. This study highlights the importance of mulching and limited fertilization to maintain soil structure in the long term while still ensuring yield production.

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Section: Variability In Soil Shrinkagecontrasting

confidence: 75%

Section: Variability In Soil Shrinkagecontrasting

confidence: 75%

Section: Core Ideasmentioning

confidence: 99%

See 1 more Smart Citation

Long‐term effect of sugarcane residue management and chemical fertilization on soil physical properties in South Africa

Deeb

Grimaldi

Aroui

et al. 2021

Soil Science Soc of Amer J

Self Cite

View full text Add to dashboard Cite

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“…Several studies have applied multivariate statistics to investigations of soil variables in pasture areas Zenero et al, 2019). According to , one of the advantages of this technique is the formation of groups of populations with similar characteristics, allowing a better understanding of the variations of the processes that occur in the soil.…”

Section: Introductionmentioning

confidence: 99%

Suscetibilidade Magnética De Argissolos Sob Floresta E Cultivados No Sul Do Amazonas

Brito¹,

Campos²,

Souza³

et al. 2022

Solos Amazônicos: Atributos Físicos, Químicos, Erodibilidade E Suscetibilidade Magnética

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Direitos para esta edição cedidos à Atena Editora pelos autores. Open access publication by Atena Editora Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterá-la de nenhuma forma ou utilizá-la para fins comerciais.Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético.

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“…Several studies have applied multivariate statistics to investigations of soil variables in pasture areas (Soares et al, 2016;Assunção et al, 2019;Dias et al, 2019;Zenero et al, 2019). According to Sena et al (2002), one of the advantages of this technique is the formation of groups of populations with similar characteristics, allowing a better understanding of the variations of the processes that occur in the soil.…”

Section: Introductionmentioning

confidence: 99%

Spatial variability of soil erodibility in pastures and forest areas in the municipality of Porto Velho, Rondônia

Silva¹,

Campos²,

Brito³

et al. 2021

Rev. ambiente água

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“Erodibility” is a characteristic of the soil that represents the susceptibility with which its particles from the most superficial layer are taken and transported to lower places by erosive agents, causing environmental and economic damages. This work estimated soil erodibility in pastures and forest areas in the municipality of Porto Velho-Rondônia. In the field, three areas with different types of vegetation were selected, one with brachiaria, another with mombaça grass, and a third in native forest. In areas with pastures, a sampling mesh of equal sizes was outlined (90 m x 60 m), and in the forested area an approximate sampling mesh (90 m x 50 m), with a regular spacing of 10 m between the samples points for both areas. The sampling was done at the crossing points of the mesh at a depth of 0.0-0.2 m, composing 70 sample points in the areas with pastures and 60 sample points in the forest area, totaling 200 samples. Then, laboratory analyzes were carried out to determine the texture followed by the fractionation of the sand, and the organic carbon followed by the estimate of the organic matter of the soil. The erodibility factors were calculated using indirect prediction models, and then, univariate, geostatistical and multivariate techniques were applied. The pastures’ environments differed from the forest environment. However, the mombaça grass area functions as an intermediate environment between the forest and the brachiaria, being closer to the forest environment. Keywords: erodibility, factors, kriging, principal components.

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Variability in soil shrinkage along forest and pasture toposequences in Amazonia

Cited by 5 publications

References 58 publications

Long‐term effect of sugarcane residue management and chemical fertilization on soil physical properties in South Africa

Long‐term effect of sugarcane residue management and chemical fertilization on soil physical properties in South Africa

Suscetibilidade Magnética De Argissolos Sob Floresta E Cultivados No Sul Do Amazonas

Spatial variability of soil erodibility in pastures and forest areas in the municipality of Porto Velho, Rondônia

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