Aspectos Fitossociológicos E Indicadores Da Qualidade Do Solo Em Sistemas Agroflorestais

Lenci, Lucas Henrique Vieira; Souza, Emanuel Fernando Maia de; Mascarenhas, Adriano Reis Prazeres; Filho, Antonio de Arruda Tsukamoto; Soares, Gilderlon dos Santos

doi:10.31413/nativa.v6i0.6396

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…Through root system accumulation and litter fall, agroforestry trees concentrates nutrients near the soil surface (Solanki & Arora, 2015;Bhatt et al, 2017). Trees may also enhance above and below ground microclimate (Desta et al, 2018;Kar et al, 2019), while mesofauna and microfauna and microflora around plant roots may alter soil chemical, biological, and physical properties (Bhaduri et al, 2017;Lenci et al, 2018). improve soil physical, chemical and biological properties and maintain long-term land productivity (Githae et al, 2011;Lagerlöf et al, 2014;Bayala et al, 2018;Corbeels et al, 2019).…”

Section: Most Of the Adoption Practices Of Agroforestry Among Smallhomentioning

confidence: 99%

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Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

2020

JASETD

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The role of agroforestry in improving soil quality is well appreciated. However, there is debate as to how duration of agroforestry practice affects soil quality especially in the tropical region of Sub Saharan Africa where adoption of the practice is fairly recently. Therefore, objective this study was to investigate the influence of duration of agroforestry on physico-chemical soil quality parameters. The study was conducted using survey research design from a sample of 73 individual farmers, selected using stratified and random sampling. Soils were sampled from adopters and non adopters using soil auger. At least five sub-samples of soils were collected from each of the farmers and the soil mixed to get an integrated soil sample for analysis. The soil were packaged in two-kg khaki papers and taken to the laboratory for further physical attributes (sand, clay, silt and bulk density) and chemical analyses (pH, TN, TP, TOC, C/N and C/P). The exchangeable bases (K, Ca, Mg and Na) as well as micronutrients (Mn, Cu, Fe and Zn) were also analyzed. The results indicated that proportion of sand particles was significantly (P < 0.05) higher among non adopters compared to adopters while silt and bulk density was significantly (P < 0.05) higher among the adopters compared to the non adopters. Sand particle decreased with increasing duration of agroforestry adoption while proportion of silt and bulk density showed a significant increase in tandem to stand duration of agroforestry. The TN, TOC and C/P ratio was significantly (P < 0.05) higher among adopters and increased consistently with age of adoption, while C/N was higher among non adopters and decreased with increasing age of tree stand and duration of agroforestry. The trend in exchangeable bases and mineral contents in the soil were similar where higher concentrations occurred among adopters and displayed an increase with regard to length of adoption of agroforestry. The current study lends support to assertion that duration of agroforestry positively improves soil quality and therefore urges for mass adoption of the agroforestry practice to enhance increased agricultural productivity.

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Section: Most Of the Adoption Practices Of Agroforestry Among Smallhomentioning

confidence: 99%

“…It has also been reported that high levels of phosphorus found in several phosphate fertilizers (e.g. DAP) may increase the concentration of zinc in the soil by interfering with its metabolism in plants and help in the precipitation of zinc in soil (Bhaduri et al, 2017;Lenci et al, 2018;Sarabia et al, 2020).…”

Section: Micro-nutrients In the Soilsmentioning

confidence: 99%

Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

2020

JASETD

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“…It was therefore concluded that the soil attributes Ds, TPV and pH, which are better correlated with this component, had a greater infl uence on the variability of the soil in these areas. As the root systems of the crops in the AFS and fruitgrowing areas are deeper, the soil porosity tends to increase, contributing to the greater infl uence of these parameters (LENCI et al, 2018). Diff erences in these attributes between areas become more obvious when analysing the spatial variability based on two classes (Figure 2B).…”

Section: Varmentioning

confidence: 99%

Multivariate analysis applied to evaluate the spatial variability of a soil subjected to conservation management

Costa,

Silva,

Fonseca

et al. 2024

RCA

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Monitoring the spatial variability of soil attributes is an important tool in crop management. Multivariate statistical methods and geostatistics were jointly applied to evaluate the infl uence of diff erent attributes on spatial variability in the soil. The aim of this research was to apply multivariate principal component analysis to map the spatial variability of the soil in an area subjected to diff erent methods of conservation management and identify the most relevant physical and chemical attributes. Disturbed and undisturbed soil samples were collected and georeferenced at 99 diff erent points in the study area at depths of 0.00 -0.10 m and 0.10 -0.20 m to measure the physical and chemical attributes of the soil; multivariate principal component analysis (PC) was then applied to the data.Geostatistics was applied to the PCs showing greater explanatory capacity, evaluating spatial dependence, and generating maps of spatial variability. The variance in the soil attributes was explained by the fi rst eight PCs. Soil density, particle density and pH had the greatest infl uence on the spatial variability of the soil since they showed the highest correlation with the PC with the greatest explanatory power. The PCs that correlated with at least two of the soil attributes showed moderate (PC1 and PC6) and strong (PC2, PC4 and PC5) spatial dependence. The generated maps helped identify the joint infl uence of the variability of the most relevant attributes, making it possible to characterise regions under diff erent methods of conservation management.

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“…Diante de um histórico de degradação da biodiversidade amazônica, é preciso promover e adotar sistemas de produção sustentáveis que vinculem questões econômicas à conservação dos recursos naturais (Lenci, Souza, Mascarenhas, Tsukamoto Filho, & Soares, 2018). Para Guzmán e Navarro (1990), a preservação ambiental torna-se mais importante quando se reconhece que não é a natureza, mas a sociedade humana que está em risco de extinção.…”

Section: Agricultura Familiar Na Comunidade De Novo Remansounclassified

A agricultura familiar e estratégias de conservação na comunidade de Novo Remanso: família, trabalho e saber

Almeida,

Rezende

2023

Acta Sci. Human Soc. Sci.

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Na história da Amazônia ocorreram diferentes formas de intervenção no desenvolvimento da região e por conseguinte no modelo de agricultura. Tais intervenções ocorreram principalmente por meio de estratégias de desenvolvimento para Amazônia, conforme a dinâmica do cenário nacional. Este trabalho tem por objetivo compreender as estratégias de conservação utilizadas pelos agricultores de Novo Remanso. Do ponto de vista metodológico, se apresenta de forma quali-quantitativa com finalidade exploratória e descritiva, de natureza básica. Assim sendo, para proporcionar o bom desenvolvimento, foi realizado um vasto levantamento bibliográfico, documental e de campo e, como ferramenta metodológica, o Mapa de Migração. Além disso, foram aplicados formulários com perguntas semiestruturadas objetivas com 60 agricultores (as) residentes na área de estudo. Os resultados apontam que a agricultura familiar na comunidade de Novo Remanso segue os padrões tradicionais de uso da terra na região, explorando os recursos disponíveis para garantir sua autossuficiência por meio da produção agrícola diversificada e mantendo a diversidade de espécies nas plantações. É factível na fala de alguns dos agricultores entrevistados a natureza como elemento de preocupação. Os resultados elucidam uma percepção ambiental do agricultor familiar próximo ao conceito de uma percepção naturalista do ambiente. Neste recorte, o estudo das estratégias de conservação na agricultura familiar não deve ser um fator isolado, mas concatenado a diversos outros fatores que determinam de forma integrada ações que levam às melhorias das condições da vida dos agricultores, qualidade dos produtos e recursos naturais.

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Aspectos Fitossociológicos E Indicadores Da Qualidade Do Solo Em Sistemas Agroflorestais

Cited by 5 publications

References 17 publications

Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

Influence of Duration of Agroforestry on Physico-Chemical Soil Quality Parameters in Machakos County, Kenya

Multivariate analysis applied to evaluate the spatial variability of a soil subjected to conservation management

A agricultura familiar e estratégias de conservação na comunidade de Novo Remanso: família, trabalho e saber

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