Effect of Water Availability on Soil Microbial Biomass in Secondary Forest in Eastern Amazonia

Rangel‐Vasconcelos, Lívia Gabrig Turbay; Zarin, Daniel J.; Oliveira, Francisco de Assis; Vasconcelos, S. S.; Carvalho, C. J. R. de; Santos, Maria Marly de Lourdes Silva

doi:10.1590/01000683rbcs20140135

Cited by 11 publications

(6 citation statements)

References 38 publications

(46 reference statements)

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“…One of the main attributes to assess changes in soil properties caused by crops or changes in vegetation cover is the microbial biomass carbon (MBC) (Lopes et al, 2011). This responds quickly to the effect of soil disturbance or recovery (Rangel-Vasconcelos et al, 2015), since it maintains the living component of the soil's organic matter (SOM) (Araújo et al, 2013).…”

Section: Introduction and Objectivesmentioning

confidence: 99%

Microbial Properties of Soil in Different Coverages in the Colombian Amazon

et al. 2019

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Changes in coverage affect the activity of soil's microbial communities, affecting the carbon and nitrogen cycle. The variability of biochemical properties in different coverages (native forest, forest plantation, silvopastoral system and pasture) located in the northwest of the Colombian Amazon was evaluated. Edaphic properties were determined as: organic carbon (OC), total nitrogen (TN), microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) using the fumigation method. A significant effect was found to land use × depth interaction for the variables moisture, pH, CO and MBC/OC ratio (p < 0.05), while MBC and dCO 2 showed differences only for land use and NT, MBN and MBN/TN ratio at depth (p < 0.05). In general, when modifying the soil cover, changes were made in the chemical properties that affected the microbial activity.

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Section: Introduction and Objectivesmentioning

confidence: 99%

Microbial Properties of Soil in Different Coverages in the Colombian Amazon

et al. 2019

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“…Alguns atributos microbiológicos do solo são mais sensíveis a alterações quando o solo está sujeito às diferentes formas de manejo, podendo ser estes considerados bons indicadores de qualidade do solo (Souza et al, 2012). Entre os atributos microbiológicos, a biomassa microbiana do solo (C-BMS) é um importante parâmetro de ciclagem de nutrientes nos ecossistemas, pois representa a fração da matéria orgânica do solo (MOS) que é mais rapidamente decomposta (Rangel-Vasconcelos et al, 2015), permitindo a avaliação mais rápida e precoce de suas alterações (García-Orenes et al, 2013), quando comparada aos atributos químicos e físicos (Hungria et al, 2009;Kaschuk et al, 2010).…”

Section: Introductionunclassified

Variação temporal dos atributos microbiológicos do solo sob diferentes usos

Novak¹,

Carvalho²,

Santiago³

et al. 2018

Rev. Ciênc. Agr.

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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.

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“…Soil microbial biomass (SMB), plays an important role in SOC mineralization and nutrient cycling [46][47] . The composition of vegetation species and soil water availability in wetlands greatly influences the soil microbial biomass [48][49] . In this study, the overall mean SMBC did not differ significantly among the sites dominated by different vegetation types.…”

Section: Soil Organic Carbon (Soc) and Tn Variations Among Vegetation...mentioning

confidence: 99%

Characteristics of Soil Organic Carbon and Total Nitrogen Along Various Vegetation Types in Hongqipao Reservoir, Northeast China

Yu¹,

Mwagona²,

Li³

et al. 2020

Preprint

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This study investigated the spatial variability of soil organic carbon (SOC), total nitrogen (TN), soil microbial biomass carbon (SMBC) and soil microbial biomass nitrogen (SMBN) in Hongqipao reservoir dominated by different vegetation types and the possible relationships with other soil properties. Top 0–50cm soil samples were collected in sites dominated by different vegetation types within the reservoir littoral zone. There was high spatial variability for SOC, TN, SMBC and SMBN in the Hongqipao reservoir. In addition, the SOC, TN, SMBC and SMBN contents decreased with increasing soil depth. This could be attributed by the fact that when plants detritus decompose, most of their organic matter is mineralized and a new soil layer which contains a greater amount of organic carbon is formed at the top. According to Pearson's correlation values and redundancy analysis (RDA) results, SOC was significantly and positively correlated with TN likely because the vegetation organic matter and liter could be the main nitrogen sources. Similarly, soil moisture content (MC) was significant positive correlated with SOC and TN. Conversely, BD was significant negative correlated with SOC and TN contents in the 0-50 cm soil profiles. However, no significant correlations were observed between SOC, TN, SMBC and SMBN contents and soil pH values. SMBN was significantly and positive correlated with C:N ratio and BD and negative related with MC. Multiple linear regression model revealed that all measures soil properties in this study could explain higher significant variability of the response variables (SOC, TN, SMBC and SMBN contents). This implies that all the measured soil variables within the different vegetation types in the reservoir played a crucial role in determining the contents of SOC, TN, SMBC and SMBN. This study further suggests that vegetation types play a major role in determining the spatial characteristics of SOC and TN. Any changes in the vegetation types in the reservoir may influence the distribution of SOC and TN. This may affect the global carbon budget and the atmospheric greenhouse gas concentration significantly.

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Effect of Water Availability on Soil Microbial Biomass in Secondary Forest in Eastern Amazonia

Cited by 11 publications

References 38 publications

Microbial Properties of Soil in Different Coverages in the Colombian Amazon

Microbial Properties of Soil in Different Coverages in the Colombian Amazon

Variação temporal dos atributos microbiológicos do solo sob diferentes usos

Characteristics of Soil Organic Carbon and Total Nitrogen Along Various Vegetation Types in Hongqipao Reservoir, Northeast China

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