Soil Microbiological Activity and Carbon Dynamics in the Current Climate Change Scenarios: A Review

Sofi, J. A.; Lone, Aabid H.; Ganie, Mumtaz A.; Dar, Naseer Ahmad; Bhat, Sajad Ahmed; Mukhtar, Malik; Dar, Mohd Ashraf; Ramzan, Shazia

doi:10.1016/s1002-0160(15)60068-6

Cited by 54 publications

(14 citation statements)

References 146 publications

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“…Soil respiration refers to the overall processes by which microorganisms mineralize soil organic C and release it in the form of CO 2 , which is the most abundant greenhouse gas (Sofi et al., 2016). Measurement of CO 2 flux is a useful index that assesses the influence of soil conditions and management practices on microbial biomass activity (Hossain et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the activity of protease, cellulase, and phosphatase in soil has critical relationships with N, C, and P recycling, respectively (Cenciani, Freitas, Critter, & Airoldi, 2011; Nannipieri, Giagnoni, Landi, & Renella, 2011). Therefore, changes in soil conditions may have significant effects on enzyme activity and nutrient cycling, which rely on microorganisms (Sofi et al., 2016; Zoghlami et al., 2016a). Using two different soil types, the current microcosm study addressed C mineralization and subsequent changes in soil properties after USS application at two rates equivalent to 40 and 120 t ha −1 .…”

Section: Introductionmentioning

confidence: 99%

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Carbon mineralization, biological indicators, and phytotoxicity to assess the impact of urban sewage sludge on two light‐textured soils in a microcosm

et al. 2020

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The agricultural reuse of urban sewage sludge (USS) modifies soil properties depending on sludge quality, management, and pedo‐environmental conditions. The aim of this microcosm study was to assess C mineralization and subsequent changes in soil properties after USS addition to two typical Mediterranean soils: sandy (Soil S) and sandy loam (Soil A) at equivalent field rates of 40 t ha−1 (USS‐40) and 120 t ha−1 (USS‐120). Outcomes proved the biodegradability of USS through immediate CO2 release inside incubation bottles in a dose‐dependent manner. Accordingly, the highest rates of daily C emission were recorded with USS‐120 (3.7 and 3.9 mg kg−1 d−1 for Soils S and A, respectively) after 84 d of incubation at 25 °C. The addition of USS also improved soil fertility by enhancing soil macronutrients, microbial proliferation, and protease activity. Protease showed significant correlation with N, total organic C, and heterotrophic bacteria, reflecting the biostimulation and bioaugmentation effects of sludge. Soil indices like C/N/P stoichiometry and metabolic quotient (qCO2) varied mostly with mineralization rates of C and P in both soils. Despite a significant increase of soil salinity and total heavy metal content (lead, nickel, zinc, and copper) with USS dose, wheat germination was not affected by these changes. Both experimental soils showed intrinsic (Soil A) and incubation‐induced (Soil S) phytotoxicities that were alleviated by USS addition. This was likely due to the enhancement of biodegradation and/or retention of phytotoxicants originating from previous land uses. Urban sewage sludge amendments could have applications in soil remediation by reducing the negative effects of allelopathic and/or anthropogenic phytoinhibitors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon mineralization, biological indicators, and phytotoxicity to assess the impact of urban sewage sludge on two light‐textured soils in a microcosm

et al. 2020

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“…Letras diferentes dentro de la columna indica diferencias significativas entre los sistemas de uso (Tukey p≤0.05) M = Mediano; AD = Adecuado; A= Alto; MA= Muy Alto Se estima que los suelos contienen el doble de carbono de la atmósfera, y su cantidad almacenada en el suelo depende del equilibrio entre la entrada de C por la hojarasca y detritos de la raíz y la salida de C por la respiración edáfica (Sofi et al, 2016). De este modo, una manera indirecta para determinar una respuesta sensible Revista Mexicana de Ciencias Forestales Vol.…”

Section: Uso Del Suelounclassified

Efecto del cambio de uso de suelo en el contenido del carbono orgánico y nitrógeno del suelo

Silva

Díaz

2018

RMCF

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Los suelos son el mayor reservorio de carbono, contienen casi tres veces más que la biomasa aérea. Los cambios de uso de suelo representan la segunda fuente antrópica de emisiones a la atmósfera. Se evaluó el contenido de carbono y nitrógeno en cuatro sistemas de uso de suelo: matorral espinoso tamaulipeco, cultivo agrícola, pastizal y plantación de eucaliptos. Se recolectaron cuatro muestras de suelo por sitio, a dos profundidades (0-5 y 5-30 cm); se analizó el contenido de carbono orgánico del suelo (COS), nitrógeno total (Nt) y se estimó la relación C/N. Los resultados del contenido de COS y Nt para la profundidad 0-5 cm fueron de 1.4-0.16 % (agrícola), 2.4-0.27 % (plantación), 3.41-0.33 % (pastizal) y 4.1-0.43 % (matorral), respectivamente. Para la profundidad 5-30 cm, los valores disminuyeron. La relación C/N presentó registros de 8.7 a 10.4, en ambas profundidades; lo que indica una buena humificación de la materia orgánica. Las pérdidas de COS y Nt por los cambios de uso del suelo de matorral a otro sistema fluctuaron de 2.4 % hasta 66 %, el COS se redujo, principalmente, en la profundidad de suelo 0-5 cm; mientras que el Nt tuvo las mayores reducciones en la profundidad de 5-30 cm. Al sistema agrícola le correspondió una pérdida más alta de COS y Nt, en las dos profundidades. Los resultados evidencian que los cambios de uso de suelo ocasionan una disminución en la fertilidad, lo que se refleja en el sistema agrícola, donde los contenidos de C y Nt fueron más bajos, respecto a lo estimado en la vegetación de matorral.

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“…However, a better understanding of the interactions between plants, microbes, and animals is crucial to reduce uncertainty in carbon (C) cycling and the modelling of biogeochemical processes. Important aspects of these cycles include C turnover times (He et al, 2016), soil organic matter (SOM) dynamics (Cotrufo et al, 2015), and soil carbon sink strength under a range of climate scenarios (Sofi et al, 2016). This will help address pressing challenges such as soil C loss and food security (Lehmann & Kleber, 2015).…”

Section: Introductionmentioning

confidence: 99%

Using plant, microbe, and soil fauna traits to improve the predictive power of biogeochemical models

et al. 2018

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Process‐based models describing biogeochemical cycling are crucial tools to understanding long‐term nutrient dynamics, especially in the context of perturbations, such as climate and land‐use change. Such models must effectively synthesize ecological processes and properties. For example, in terrestrial ecosystems, plants are the primary source of bioavailable carbon, but turnover rates of essential nutrients are contingent on interactions between plants and soil biota. Yet, biogeochemical models have traditionally considered plant and soil communities in broad terms. The next generation of models must consider how shifts in their diversity and composition affect ecosystem processes. One promising approach to synthesize plant and soil biodiversity and their interactions into models is to consider their diversity from a functional trait perspective. Plant traits, which include heritable chemical, physical, morphological and phenological characteristics, are increasingly being used to predict ecosystem processes at a range of scales, and to interpret biodiversity–ecosystem functional relationships. There is also emerging evidence that the traits of soil microbial and faunal communities can be correlated with ecosystem functions such as decomposition, nutrient cycling, and greenhouse gas production. Here, we draw on recent advances in measuring and using traits of different biota to predict ecosystem processes, and provide a new perspective as to how biotic traits can be integrated into biogeochemical models. We first describe an explicit trait‐based model framework that operates at small scales and uses direct measurements of ecosystem properties; second, an integrated approach that operates at medium scales and includes interactions between biogeochemical cycling and soil food webs; and third, an implicit trait‐based model framework that associates soil microbial and faunal functional groups with plant functional groups, and operates at the Earth‐system level. In each of these models, we identify opportunities for inclusion of traits from all three groups to reduce model uncertainty and improve understanding of biogeochemical cycles. These model frameworks will generate improved predictive capacity of how changes in biodiversity regulate biogeochemical cycles in terrestrial ecosystems. Further, they will assist in developing a new generation of process‐based models that include plant, microbial, and faunal traits and facilitate dialogue between empirical researchers and modellers.

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Soil Microbiological Activity and Carbon Dynamics in the Current Climate Change Scenarios: A Review

Cited by 54 publications

References 146 publications

Carbon mineralization, biological indicators, and phytotoxicity to assess the impact of urban sewage sludge on two light‐textured soils in a microcosm

Carbon mineralization, biological indicators, and phytotoxicity to assess the impact of urban sewage sludge on two light‐textured soils in a microcosm

Efecto del cambio de uso de suelo en el contenido del carbono orgánico y nitrógeno del suelo

Using plant, microbe, and soil fauna traits to improve the predictive power of biogeochemical models

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