Interactive Feedbacks between Soil Fauna and Soil Processes

Soil fauna plays a significant role at all trophic levels of the soil food web and regulates processes that are crucial for soil functioning, such as nutrient cycling, immobilization and/or degradation of toxic compounds, formation of soil structure, greenhouse gas emissions and C turnover. Although...

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collection Directory of Open Access Books
description Soil fauna plays a significant role at all trophic levels of the soil food web and regulates processes that are crucial for soil functioning, such as nutrient cycling, immobilization and/or degradation of toxic compounds, formation of soil structure, greenhouse gas emissions and C turnover. Although soil fauna is not thought to contribute significantly to soil respiration during litter or soil organic matter (SOM) decomposition, the diversity of soil fauna has been found to strongly influence SOM distribution and dynamics. Yet, the functional contribution of soil fauna to many soil processes is not well understood due to methodological limitations and the high complexity of interactions at various spatiotemporal scales. In general, soil fauna has received far less scientific attention than bacteria and fungi (and lately archaea) in soil studies and has been regularly ignored in global biogeochemical models, with maybe exceptions for some earthworms. However, recent studies are raising the awareness of the influence of soil fauna on ecosystems dynamics. For instance, earthworms have been found to be major players in N2O emissions from soils. They exert a strong influence on C stabilization, and they promote the degradation of polycyclic aromatic hydrocarbons (PAHs). Less studied, ants and termites have been found to increase crop productivity in drylands, and different lifeforms of Collembola have been shown to impact microorganisms in various ways over time, thereby potentially affecting C and N cycles within farming systems. The influence of soil fauna indeed manifests over a broad ranges of spatiotemporal scales. For example, some effect such as aggregate formation may cumulate over time and finally contribute to the formation of whole soil profiles, which serve as a framework for other soil processes such as water movement, decomposition, etc. Meanwhile, soil biodiversity is impacted by an increasing human pressure through deforestation, agriculture intensification, habitat fragmentation or climate change (increasing temperatures, extreme weather events), which leads to soil biodiversity loss, in particular of soil fauna, with associated consequences on soil functioning and resilience.
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spelling doab-20.500.12854ir-737002024-04-04T19:18:30Z Interactive Feedbacks between Soil Fauna and Soil Processes Luz Cayuela, Maria Clause, Julia Frouz, Jan Baveye, Philippe C. protists nematodes earthworms macroarthropods microarthropods soil functions soil structure biogeochemical cycles greenhouse gas C sequestration soil alterations soil stability resilience thema EDItEUR::P Mathematics and Science::PD Science: general issues thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology Soil fauna plays a significant role at all trophic levels of the soil food web and regulates processes that are crucial for soil functioning, such as nutrient cycling, immobilization and/or degradation of toxic compounds, formation of soil structure, greenhouse gas emissions and C turnover. Although soil fauna is not thought to contribute significantly to soil respiration during litter or soil organic matter (SOM) decomposition, the diversity of soil fauna has been found to strongly influence SOM distribution and dynamics. Yet, the functional contribution of soil fauna to many soil processes is not well understood due to methodological limitations and the high complexity of interactions at various spatiotemporal scales. In general, soil fauna has received far less scientific attention than bacteria and fungi (and lately archaea) in soil studies and has been regularly ignored in global biogeochemical models, with maybe exceptions for some earthworms. However, recent studies are raising the awareness of the influence of soil fauna on ecosystems dynamics. For instance, earthworms have been found to be major players in N2O emissions from soils. They exert a strong influence on C stabilization, and they promote the degradation of polycyclic aromatic hydrocarbons (PAHs). Less studied, ants and termites have been found to increase crop productivity in drylands, and different lifeforms of Collembola have been shown to impact microorganisms in various ways over time, thereby potentially affecting C and N cycles within farming systems. The influence of soil fauna indeed manifests over a broad ranges of spatiotemporal scales. For example, some effect such as aggregate formation may cumulate over time and finally contribute to the formation of whole soil profiles, which serve as a framework for other soil processes such as water movement, decomposition, etc. Meanwhile, soil biodiversity is impacted by an increasing human pressure through deforestation, agriculture intensification, habitat fragmentation or climate change (increasing temperatures, extreme weather events), which leads to soil biodiversity loss, in particular of soil fauna, with associated consequences on soil functioning and resilience. 2021-11-18T16:22:53Z 2021-11-18T16:22:53Z 2020 book ONIX_20211118_9782889635481_832 9782889635481 https://directory.doabooks.org/handle/20.500.12854/73700 eng image/jpeg Attribution 4.0 International https://www.frontiersin.org/research-topics/8341/interactive-feedbacks-between-soil-fauna-and-soil-processes#overview https://www.frontiersin.org/research-topics/8341/interactive-feedbacks-between-soil-fauna-and-soil-processes#overview Frontiers Media SA 10.3389/978-2-88963-548-1 10.3389/978-2-88963-548-1 bf5ce210-e72e-4860-ba9b-c305640ff3ae 9782889635481 120 open access
spellingShingle protists
nematodes
earthworms
macroarthropods
microarthropods
soil functions
soil structure
biogeochemical cycles
greenhouse gas
C sequestration
soil alterations
soil stability
resilience
thema EDItEUR::P Mathematics and Science::PD Science: general issues
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
Interactive Feedbacks between Soil Fauna and Soil Processes
title Interactive Feedbacks between Soil Fauna and Soil Processes
title_full Interactive Feedbacks between Soil Fauna and Soil Processes
title_fullStr Interactive Feedbacks between Soil Fauna and Soil Processes
title_full_unstemmed Interactive Feedbacks between Soil Fauna and Soil Processes
title_short Interactive Feedbacks between Soil Fauna and Soil Processes
title_sort interactive feedbacks between soil fauna and soil processes
topic protists
nematodes
earthworms
macroarthropods
microarthropods
soil functions
soil structure
biogeochemical cycles
greenhouse gas
C sequestration
soil alterations
soil stability
resilience
thema EDItEUR::P Mathematics and Science::PD Science: general issues
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
topic_facet protists
nematodes
earthworms
macroarthropods
microarthropods
soil functions
soil structure
biogeochemical cycles
greenhouse gas
C sequestration
soil alterations
soil stability
resilience
thema EDItEUR::P Mathematics and Science::PD Science: general issues
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology
url ONIX_20211118_9782889635481_832