Aluminum and acidity suppress microbial activity and biomass in acidic forest soils

Kunito, Takashi; Isomura, Ikuko; Sumi, Hirotaka; Park, Ho-Dong; Toda, Hideki; Otsuka, Shigeto; Nagaoka, Kazunari; Saeki, Kazutoshi; Senoo, Keishi

doi:10.1016/j.soilbio.2016.02.019

Cited by 115 publications

(63 citation statements)

References 59 publications

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“…Under the above conditions, variability in the chemical composition of SOM could be a conspicuous factor compared to less variable temperature or radiation. Al‐organic binding, for example, tends to stabilize organic matter in acidic forest soils (Kunito et al, ; Scheel et al, ). The decreased mobility of organic carbon has been experimentally linked to the direct effect of increased soil acidity (Evans et al, ).…”

Section: Discussionmentioning

confidence: 99%

A Newly Identified Role of the Deciduous Forest Floor in the Timing of Green‐Up

et al. 2017

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Plant phenology studies rarely consider controlling factors other than air temperature. We evaluate here the potential significance of physical and chemical properties of soil (edaphic factors) as additional important controls on phenology. More specifically, we investigate causal connections between satellite‐observed green‐up dates of small forest watersheds and soil properties in the Adirondack Mountains of New York, USA. Contrary to the findings of previous studies, where edaphic controls of spring phenology were found to be marginal, our analyses show that at least three factors manifest themselves as significant controls of seasonal patterns of variation in vegetated land surfaces observed from remote sensing: (1) thickness of the forest floor, (2) concentration of exchangeable soil potassium, and (3) soil acidity. For example, a thick forest floor appears to delay the onset of green‐up. Watersheds with elevated concentrations of potassium are associated with early surface greening. We also found that trees growing in strongly acidified watersheds demonstrate delayed green‐up dates. Overall, our work demonstrates that, at the scale of small forest watersheds, edaphic factors can explain a significant percentage of the observed spatial variation in land surface phenology that is comparable to the percentage that can be explained by climatic and landscape factors. We conclude that physical and chemical properties of forest soil play important roles in forest ecosystems as modulators of climatic drivers controlling the rate of spring soil warming and the transition of trees out of winter dormancy.

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Section: Discussionmentioning

confidence: 99%

A Newly Identified Role of the Deciduous Forest Floor in the Timing of Green‐Up

et al. 2017

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“…Por lo anterior, se puede inferir que el asentamiento de nuevas especies vegetales sobre los lodos está relacionado con los cambios en las condiciones edáficas, y de acuerdo con los planteado por Arbelo, et al, (2002), esto influye para que las formaciones actuales de vegetación boscosa se establezcan en condiciones favorables para su desarrollo, reflejado en mayor contenido de materia orgánica y la disminución de los niveles de Fe, S y Al, los cuales en altas concentraciones generan toxicidad y acidez del suelo, así como la inhibición de actividades enzimáticas mediadas por microbios en los ciclos de nutrientes (Kunito, 2016).…”

Section: Discussionunclassified

Composición física y química de los suelos fluviovolcánicos de Armero Tolima, Colombia

Torres-Benítez

Esquivel

Tinoco

2017

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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ResumenLos cambios en la calidad de los suelos son determinados por su composición física y química y se relacionan directamente con el desarrollo, el crecimiento y los cambios en la dinámica de los procesos de sucesión vegetal. El objetivo de este estudio fue evaluar la composición física y química del suelo y su relación con la vegetación proveniente de procesos de sucesión ocurridos sobre los lodos fluviovolcánicos del municipio de Armero, Tolima, Colombia. Se establecieron 10 parcelas de 10 x 20 metros y en cada unidad de muestreo se dio apertura a tres calicatas para la obtención de una muestra compuesta. En cada muestra de suelo se determinaron los parámetros físicos y químicos y se estableció la relación entre las variables edáficas mediante un análisis multivariado de componentes principales. Las variables físicas, las densidades real y aparente, el porcentaje de porosidad y de humedad y las variables químicas: pH, fósforo (P), manganeso (Mn), cinc (Zn), calcio (Ca), la saturación de bases: magnesio (Mg), hierro (Fe), cobre (Cu), la relación de magnesio y potasio (relación Mg/K), la relación de calcio más magnesio con potasio ((Ca+Mg)/K), y la saturación y concentración de aluminio (Al), presentaron alta variabilidad y valores sustentables para el desarrollo de la vegetación en la zona de Armero debido a los procesos ecológicos de sucesión. © 2017. Acad. Colomb. Cienc. Ex. Fis. Nat.Palabras clave: Sucesión; Fisicoquímica; Parcelas; Parámetros físicos y químicos. Physical and chemical composition of fluviovolcanic soils in Armero, Tolima, Colombia AbstractChanges in soil quality are determined by their physical and chemical composition and are directly related to the development, growth and changes in the dynamics of plant succession processes. The objective of this study was to evaluate the physical and chemical composition of the soil and its relationship with vegetation from successional processes developed on fluviovolcanic sludge in the municipality of Armero, Tolima, Colombia. Ten plots of 10x20 m were established and three trial pits were opened in each unit to obtain a composite sample. We determined physical and chemical parameters in each soil sample and we established the relationship between the edaphic variables through a multivariate analysis of principal components. Physical variables, actual and apparent density, porosity and humidity percentages and chemical variables: pH, P, Mn, Zn, Ca, base saturation: Mg, Fe, Cu, Mg/K ratio, (Ca+ Mg)/K ratio, and Al saturation and concentration presented high variability and sustainable values for the development of vegetation in Armero as a result of sequential ecological processes. © 2017. Acad. Colomb. Cienc. Ex. Fis. Nat.Key words: Succession; Physical chemistry; Plots; Physical and chemical parameters. Ciencias de la Tierra IntroducciónEl suelo es un cuerpo natural, puede considerarse vivo, y está sujeto a la acción de los factores formadores (clima, organismos, material parental, tiempo y relieve); por lo que nace, crece, se reproduce y muere; e...

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“…However, all the soils showed scarce fertility, with low values of available P, exchangeable Ca (with the exception of the soils on serpentinite and phyllite), and exchangeable K. This diffused condition was attributed to both parent rocks and environmental conditions. These two factors and the sub-acid pH are considered responsible for potential Al toxicity [56]. Because of this, in the soils here studied except that on serpentinite, the exchangeable Al represented a proportion of ECEC ranging from 46 to 69%.…”

Section: Morphology and General Properties Of The Selected Soilsmentioning

confidence: 99%

Chemical and Biochemical Properties of Soils Developed from Different Lithologies in Northwestern Spain (Galicia)

Cardelli

Cocco

Agnelli

et al. 2017

Forests

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Physical and chemical soil properties are generally correlated with the parent material, as its composition may influence the pedogenetic processes, the content of nutrients, and the element biocycling. This research studied the chemical and biochemical properties of the A horizon from soils developed on different rocks like amphibolite, serpentinite, phyllite, and granite under a relatively similar climatic regime from Galicia (northwest Spain). In particular, the effect of the parent material on soil evolution, organic carbon sequestration, and the hormone-like activity of humic and fulvic acids were tested. Results indicated that all the soils were scarcely fertile because of low concentrations of available P, exchangeable Ca (except for the soils on serpentinite and phyllite), and exchangeable K, but sequestered relevant quantities of organic carbon. The scarce soil fertility was common to all soils independently of the parent material, and we attributed this similarity to the pedogenetic pressure induced by the climatic conditions. Also, the hormone-like activity of humic and fulvic acids, similar for all the soils, was probably due to pedogenesis. We hypothesized that the hormone-like activity of the humic substances helps growth and diffusion of vegetation in low fertile soils and, consequently, soil organic carbon sequestration too.

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Aluminum and acidity suppress microbial activity and biomass in acidic forest soils

Cited by 115 publications

References 59 publications

A Newly Identified Role of the Deciduous Forest Floor in the Timing of Green‐Up

A Newly Identified Role of the Deciduous Forest Floor in the Timing of Green‐Up

Composición física y química de los suelos fluviovolcánicos de Armero Tolima, Colombia

Chemical and Biochemical Properties of Soils Developed from Different Lithologies in Northwestern Spain (Galicia)

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