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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 accelerates decomposition and facilitates soil aggregation in a shrub-invaded Sonoran Desert grassland Eva Levi1†, Steve Archer1, Craig Rasmussen 1, Heather Throop 2, and Dan Hewins2 1University of Arizona, 2New Mexico State University †[email protected] Figure 4.

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Soil-litter Mixing Accelerates Decomposition and May ...

Request PDF Soil-litter Mixing Accelerates Decomposition and May Promote Soil Aggregate Formation in the Chihuahuan Desert Vegetation cover in drylands can strongly affect soil movement by ...

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Soil–Litter Mixing Accelerates Decomposition in a ...

Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland Daniel B. Hewins,1* Steven R. Archer,2 Gregory S. Okin,3 Rebecca L. McCulley,4 and Heather L. Throop1 1Biology Department, MSC 3AF, New Mexico State University, Las Cruces, New Mexico 88003, USA; 2School of Natural Resources and the Environment, University of Arizona, 325 Bio Sciences East, Tucson,

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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 Accelerates Decomposition in a ...

of abiotic drivers of decomposition in drylands terns in response to disturbance (for example, live (reviewed in Throop and Archer 2009). One such stock grazing, fire) and high annual/interannual driver that accelerates decomposition is soil-litter variability in precipitation, mixing (SLM), which is characterized by the burial

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Soil-litter mixing accelerates decomposition and ...

Soil-litter mixing accelerates decomposition and facilitates soil aggregation in a shrub-invaded Sonoran Desert grassland Eva Levi1†, Steve Archer1, Craig Rasmussen 1, Heather Throop 2, and Dan Hewins2 1University of Arizona, 2New Mexico State University †[email protected] Figure 4.

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Soil-litter mixing accelerates decomposition and ...

Our results confirm findings of previous work in the Sonoran Desert that show soil-litter mixing accelerates decomposition and shows that soil-litter mixing may also have implications for carbon ...

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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 Accelerates Decomposition in a ...

of abiotic drivers of decomposition in drylands terns in response to disturbance (for example, live (reviewed in Throop and Archer 2009). One such stock grazing, fire) and high annual/interannual driver that accelerates decomposition is soil-litter variability in precipitation, mixing (SLM), which is characterized by the burial

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Soil–Litter Mixing Accelerates Decomposition in a ...

Oct 26, 2012  One such driver that accelerates decomposition is soil–litter mixing (SLM), which is characterized by the burial of litter by aeolian and fluvial soils and the subsequent formation of biotic soil films on litter surfaces (hereafter ‘soil–litter films’) (Throop and Archer 2007; Barnes and others 2012). Although the mechanisms by which ...

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Aggregate Mesquite Litter Mass Following Soil-litter ...

I hypothesized that reductions in grass cover would promote SLM and accelerate mass loss by improving conditions for microbial decomposition. This study is complete. For more see: Hewins, D. B., S. R. Archer, G. S. Okin, R. L. McCulley, and H. L. Throop. 2013. Soil-litter mixing accelerates decomposition in a Chihuahuan Desert grassland.

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

May 01, 2014  However, under field conditions in drylands where soil-litter mixing occurs and accelerates decomposition, the mechanisms involved with soil-litter mixing effects are ambiguous. Potential mechanisms may include some combination of enhanced microbial colonization of litter, physical abrasion of litter surfaces, and buffering of litter and its ...

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Soil–litter mixing and microbial activity mediate ...

Jan 25, 2017  Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland (2012) Daniel B. Hewins et al. ECOSYSTEMS

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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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Steven Archer - Person - Global Institute of ...

Steven Archer Professor, School of Natural Resources and the Environment, University of Arizona [email protected] School of Natural Resources and the Environm University of Arizona ENR2-N358 Tucson, AZ 85721-0043 About Publications Research Titles Professor, School of Natural Resources and the Environment, University of Arizona Education PhD, Rangeland Ecosystem

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Steven Archer The University of Arizona - Academia

Steven Archer, The University of Arizona, School of Natural Resources and the Environment, Faculty Member. Studies Sustainable forest management, Forest Carbon, and Forestry.

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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  However, under field conditions in drylands where soil-litter mixing occurs and accelerates decomposition, the mechanisms involved with soil-litter mixing effects are ambiguous. Potential mechanisms may include some combination of enhanced microbial colonization of litter, physical abrasion of litter surfaces, and buffering of litter and its ...

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Soil–litter mixing and microbial activity mediate ...

Jan 25, 2017  Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland (2012) Daniel B. Hewins et al. ECOSYSTEMS

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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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[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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Determining a new dryland decomposition input term ...

roles and importance of water and wind in soil-litter mixing in drylands •A. Austin and L. Vivanco. Plant litter decomposition in a semi-arid ecosystem controlled by photodegredation. (2006). Nature 442: 555-558 •Daniel B. Hewins, Steve R. Archer, et. al. Soil-litter mixing accelerates decomposition in a Chihuahuan Grassland. (2012).

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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 grassland. ... Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland. ... Flexible N uptake and assimilation mechanisms may

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Non-Native Plant Litter Enhances Soil Carbon Dioxide ...

Mar 19, 2014  Introduction. Litter decomposition has been shown to be an important ecosystem process associated with carbon (C) cycling and nutrient release , .Exotic plant invasions can enhance plant litter decomposition and C cycling of invaded ecosystems –.During decomposition, more C may go belowground as substrate for soil microbial activities .In addition, invasive plant species usually

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RIC Biology Department Daniel Hewins

Feb 12, 2020  Soil-litter mixing and microbial activity mediate decomposition and soil aggregate formation in a sandy shrub-invaded Chihuahuan Desert grassland. ... Okin, G.S., McCulley, R.L., Throop, H.L. 2013. Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland. ... Flexible N uptake and assimilation mechanisms may assist ...

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Steven Archer The University of Arizona - Academia

Litter was collected at 0, 1, 6, and 12 months and analyzed for mass loss and C and N content. Results/Conclusions Results indicate soil-litter mixing accelerates decomposition as soil accumulation occurs, with higher rates of accumulation and decomposition on sandy soils in areas away from shrub canopies and with low grass cover.

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Steven R Archer UA Profiles

However, under field conditions in drylands where soil-litter mixing occurs and accelerates decomposition, the mechanisms involved with soil-litter mixing effects are ambiguous. Potential mechanisms may include some combination of enhanced microbial colonization of litter, physical abrasion of litter surfaces, and buffering of litter and its ...

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Heather Throop - Person - Global Institute of ...

Pulse frequency and soil-litter mixing alter the control of cumulative precipitation over litter decomposition. Ecology 98(9):2255-2260. DOI: 10.1002/ecy.1931. Throop, H. L., M. A. Salem and W. G. Whitford. 2017. Fire enhances litter decomposition and reduces vegetation cover influences on decomposition in a dry woodland.

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Gregory S. Okin onAcademic

Soil–Litter Mixing Accelerates Decomposition in a Chihuahuan Desert Grassland. Daniel B. Hewins Steven R. Archer Gregory S. Okin Rebecca L. McCulley Download Collect ... while the reduction in human activities such as grazing and farming may lead to stabilization of once active dune fields.

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Steven Archer - Person - Global Institute of ...

Steven Archer Professor, School of Natural Resources and the Environment, University of Arizona [email protected] School of Natural Resources and the Environm University of Arizona ENR2-N358 Tucson, AZ 85721-0043 About Publications Research Titles Professor, School of Natural Resources and the Environment, University of Arizona Education PhD, Rangeland Ecosystem

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