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Soillitter mixing promotes decomposition and soil

Soillitter mixing promotes decomposition and soil

Soil-litter mixing promotes decomposition and soil ...

Apr 15, 2020  10%  Soil-litter mixing promotes decomposition and soil aggregate formation on contrasting geomorphic surfaces in a shrub-invaded Sonoran Desert grassland. E.M. Levi 1, S.R. Archer 1, H.L. Throop 2,3 C. Rasmussen 4 Plant and Soil

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Soil-litter Mixing Accelerates Decomposition and May ...

Dec 01, 2010  Vegetation cover in drylands can strongly affect soil movement by wind and water. Many dryland systems are currently experiencing declines in grass cover due to livestock grazing and woody plant encroachment and increased soil movement is one consequence of these disturbances. Here, we test the hypothesis that declines in dryland grass cover could indirectly promote litter decomposition

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Soil-litter mixing accelerates decomposition and ...

•Soil-litter mixing was an important driver of decomposition, and varied among vegetation patch types and soil types. •Soil-litter aggregation accompanying soil-litter mixing appears to be a result of fungal hyphae connectingsoil particles and litter, although bacterial exudates presumably play an important, but less readily visible role.

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The influence of litter mixing on decomposition and soil ...

Mar 01, 2013  Highlights We examine effects of litter mixing on decomposition and soil fauna assemblages. Litter mixing has idiosyncratic effects on decomposition rates during the study. Litter quality is an important determinant of soil fauna community. Litter mixing has weak or not significant effects on soil fauna assemblages. The effect of soil fauna on litter decomposition is not stronger in

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Effects of litter mixing on litter decomposition and soil ...

Jun 21, 2019  10%  Litter decomposition is a key process for nutrient cycling in forest ecosystems, and thus for primary production (Berg and McClaugherty 2014; Hickman et al. 2013; Vogt 1991).The litter decomposition process is controlled by climatic and edaphic factors, by the nature of the soil community, and by the quality of the litter (Aerts 1997; Berg and McClaugherty 2014; Gallardo

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The influence of litter mixing on decomposition and soil ...

Mar 01, 2013  Highlights We examine effects of litter mixing on decomposition and soil fauna assemblages. Litter mixing has idiosyncratic effects on decomposition rates during the study. Litter quality is an important determinant of soil fauna community. Litter mixing has weak or not significant effects on soil fauna assemblages. The effect of soil fauna on litter decomposition is not stronger in

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Soil-litter mixing accelerates decomposition in a ...

Jornada Science-based management strategies for sustainability of agriculture and other land uses

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Soil-litter mixing enhances decomposition rates in a ...

One of these is soil-litter mixing, which may promote decomposition by (a) litter burial altering the microclimate surrounding leaf litter, enhancing suitable conditions for decomposer organisms; (b) acting as a vector for colonization by microbes, and (c) physical abrasion.

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Sunlight and Soil–Litter Mixing: Drivers of Litter ...

factors that influence soil deposition onto litter, the processes governing soil–litter matrix development, and the mechanisms by which solar radiation and soil–litter mixing interact to influence decomposition appears critical to understanding litter decomposition in drylands and resolving seemingly conflicting views on this process.

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Soil—Litter Mixing Accelerates Decomposition in a ...

mixing (SLM), which is characterized by the burial of licter by aeolian and fluvial soil* and the sub- Vegetation Change and Decomposition sequent formation of biotic sou films on litter sur faces (hereafter 'soil-litter films') (Throop and Extensive losses of grass

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Soil-Litter Mixing Accelerates Decomposition in a ...

Recent research suggests that certain drivers of decomposition that are often not explicitly incorporated into models (for example, photodegradation and soil-litter mixing; SLM) may be important in drylands, and their exclusion may, in part, be responsible for model under-predictions.

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Soil–litter mixing and microbial activity mediate ...

looked decomposition drivers, such as soil–litter mixing (SLM), may account for part of this model-measurement disconnect. We documented SLM and decomposition in relation to the formation of soil-microbial films and microbial extracellular enzyme activity (EEA) in the North American Chihuahuan Desert by placing mesh bags containing shrub

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(PDF) Sunlight and Soil–Litter Mixing: Drivers of Litter ...

Different physical forces promote move- ment of soil via wind and water, but these processes share three critical phases: detachment of soil particles from the soil surface, transport as overland flow or Sunlight and Soil–Litter Mixing: Drivers of Litter Decomposition in Drylands 289 Fig. 5 Schematic representation of wind and water ...

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Heather Throop - Person - Global Institute of ...

Soil-litter mixing promotes decomposition and soil aggregate formation on contrasting geomorphic surfaces in a shrub-invaded Sonoran Desert grassland. Plant and Soil

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Pulse frequency and soil‐litter mixing alter the control ...

Jun 19, 2017  Soil erosion and subsequent deposition can mix decomposing litter with soil (“soil‐litter mixing”), accelerating decomposition (Throop and Archer 2007, Hewins et al. 2013). Soil‐litter mixing (SLM) may buffer decomposers from high temperature and desiccation, thereby expanding the windows of opportunity for decomposer activity following ...

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Soil–litter mixing and microbial activity mediate ...

T1 - Soil–litter mixing and microbial activity mediate decomposition and soil aggregate formation in a sandy shrub-invaded Chihuahuan Desert grassland AU - Hewins, Daniel B. AU - Sinsabaugh, Robert L.

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Decomposition in Drylands: Soil Erosion and UV ...

Soil-litter mixing accelerates decomposition and may promote soil aggregate formation in the Chihuahuan Desert; The K-12 standards conundrum: Teaching math science through authentic field research data; Soil-litter mixing accelerates decomposition and facilitates soil aggregation in a shrub-invaded Sonoran Desert grassland

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Daniel Hewins Rhode Island College

Soil-litter mixing and microbial activity mediate decomposition and soil aggregate formation in a sandy shrub-invaded Chihuahuan Desert ... Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland. ... Soil Coverage Reduces Photodegradation and Promotes the Development of Soil-Microbial Films on Dryland Leaf Litter.

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Methodological Considerations in the Study of Earthworms ...

Apr 19, 2017  Litterbags are a commonly applied technique for decomposition studies. Along with the physical-chemical environment, biota, and substrate quality are the driving factors of decomposition [44, 62]. Soil ecologists have utilized litterbags filled with preweighed material and placed in

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Soil-litter mixing enhances decomposition rates in a ...

One of these is soil-litter mixing, which may promote decomposition by (a) litter burial altering the microclimate surrounding leaf litter, enhancing suitable conditions for decomposer organisms; (b) acting as a vector for colonization by microbes, and (c) physical abrasion.

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Soil moisture and soil-litter mixing effects on surface ...

Here, we tested how soil-litter mixing and soil moisture interact to influence rates of litter decomposition in a controlled environment. Foliar litter of two plant species (a grass [ Eragrostis lehmanniana ] and a shrub [ Prosopis velutina ]) was incubated for 32 weeks in a factorial combination of soil-litter mixing (none, light, and complete ...

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Soil-Litter Mixing Accelerates Decomposition in a ...

Recent research suggests that certain drivers of decomposition that are often not explicitly incorporated into models (for example, photodegradation and soil-litter mixing; SLM) may be important in drylands, and their exclusion may, in part, be responsible for model under-predictions.

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Soil moisture and soil-litter mixing effects on surface ...

May 01, 2014  The lack of strong soil-litter mixing effects on decomposition under the moderate and relatively constant environmental conditions of this study is in contrast to results from field studies and suggests the importance of soil-litter mixing may be magnified when the fluctuations and extremes in temperature, radiant energy and moisture regimes ...

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Decomposition in Drylands: Soil Erosion and UV ...

Soil-litter mixing accelerates decomposition and may promote soil aggregate formation in the Chihuahuan Desert; The K-12 standards conundrum: Teaching math science through authentic field research data; Soil-litter mixing accelerates decomposition and facilitates soil aggregation in a shrub-invaded Sonoran Desert grassland

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[PDF] Soil moisture and soil-litter mixing effects on ...

Abstract Recent studies suggest the long-standing discrepancy between measured and modeled leaf litter decomposition in drylands is, in part, the result of a unique combination of abiotic drivers that include high soil surface temperature and radiant energy levels and soil-litter mixing. Temperature and radiant energy effects on litter decomposition have been widely documented.

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Soil Coverage Reduces Photodegradation and Promotes the ...

decomposition, whereas others suggest soil-litter mixing controls decomposition. To test the influ-ence of soil coverage on UV photodegradation of litter, we conducted a controlled environment experiment with shrub (Prosopis velutina) leaf litter experiencing two UV levels and three levels of coverage with dry sterile soil. Under these condi-

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Transformation of litter carbon to stable soil organic ...

Mar 01, 2021  Soil-litter mixing promotes decomposition and soil aggregate formation on contrasting geomorphic surfaces in a shrub-invaded Sonoran Desert grassland Plant Soil ( 2020 ) , 10.1007/s11104-020-04508-1 Google Scholar

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Daniel Hewins Rhode Island College

Soil-litter mixing and microbial activity mediate decomposition and soil aggregate formation in a sandy shrub-invaded Chihuahuan Desert ... Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland. ... Soil Coverage Reduces Photodegradation and Promotes the Development of Soil-Microbial Films on Dryland Leaf Litter.

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Plant litter - Wikipedia

Litterfall, plant litter, leaf litter, tree litter, soil litter, or duff, is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground.This detritus or dead organic material and its constituent nutrients are added to the top layer of soil, commonly known as the litter layer or O horizon ("O" for "organic").

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Soil deposition and UV radiation influence litter ...

to influence decomposition and hence, numerous soil properties. Figure 3. Aerial view of the Santa Rita Experimental Range illustrating contrast between shrub-invaded and grass-dominated soils. Photo: Bill Cable, 2003. Results Results Conclusions and Implications •Soil-litter mixing and UV exposure were important drivers of decomposition.

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Specific leaf area predicts dryland litter decomposition ...

Sep 15, 2017  Soil movement via water and wind transport could alter relative effects of photodegradative and microbial decomposition in arid desert ecosystems, i.e. elevated decomposition rates of leaf litter resulting from litter-soil mixing caused by unstable soil structure (Barnes, Throop, Hewins, Abbene, Archer, 2012; Lee et al., 2014).

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Soil–litter mixing and microbial activity mediate ...

Fingerprint Dive into the research topics of 'Soil–litter mixing and microbial activity mediate decomposition and soil aggregate formation in a sandy shrub-invaded Chihuahuan Desert grassland'. Together they form a unique fingerprint. Chihuahuan Desert Agriculture Biology

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2017 ESA Annual Meeting (August 6 -- 11)

We hypothesized that UV effects would be strongest in the fully exposed litter and that soil coverage would negate UV effects and promote microbial activity and decomposition. Results/Conclusions. UV treatment and soil-litter mixing differentially affected fungal and bacterial biomarkers.

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