Quantifying the influence of different biocrust community states and their responses to warming temperatures on soil biogeochemistry in field and mesocosm studies

Geoderma ◽  
2022 ◽  
Vol 409 ◽  
pp. 115633
Author(s):  
Scott Ferrenberg ◽  
Colin L. Tucker ◽  
Robin Reibold ◽  
Armin Howell ◽  
Sasha C. Reed
Keyword(s):  
Soil Biogeochemistry

Soil biogeochemistry across Central and South American tropical dry forests

2021 ◽  
Author(s):  
Bonnie G. Waring ◽  
Mark E. De Guzman ◽  
Dan V. Du ◽  
Juan M. Dupuy ◽  
Maga Gei ◽  
...  
Keyword(s):  
Tropical Dry Forests ◽  
South American ◽  
Dry Forests ◽  
Soil Biogeochemistry

scholarly journals Spatial impacts of a multi-individual grave on microbial and microfaunal communities and soil biogeochemistry

PLoS ONE ◽  
2018 ◽  
Vol 13 (12) ◽  
pp. e0208845 ◽  
Author(s):  
Sarah W. Keenan ◽  
Alexandra L. Emmons ◽  
Lois S. Taylor ◽  
Gary Phillips ◽  
Allison R. Mason ◽  
...  
Keyword(s):  
Soil Biogeochemistry ◽  
Spatial Impacts

Soil biogeochemistry during the early spring in low arctic mesic tundra and the impacts of deepened snow and enhanced nitrogen availability

2009 ◽  
Vol 99 (1-3) ◽  
pp. 127-141 ◽  
Author(s):  
Kate M. Buckeridge ◽  
Yan-Ping Cen ◽  
David B. Layzell ◽  
Paul Grogan
Keyword(s):  
Nitrogen Availability ◽  
Early Spring ◽  
Soil Biogeochemistry ◽  
Low Arctic

scholarly journals Spatial changes in soil stable isotopic composition in response to carrion decomposition

2019 ◽  
Vol 16 (19) ◽  
pp. 3929-3939 ◽  
Author(s):  
Sarah W. Keenan ◽  
Sean M. Schaeffer ◽  
Jennifer M. DeBruyn
Keyword(s):  
Soft Tissue ◽  
Isotopic Composition ◽  
Microbial Communities ◽  
Soft Tissues ◽  
Soil Microbial Communities ◽  
Bulk Soil ◽  
Soil Biogeochemistry ◽  
Stable Isotopic Composition ◽  
Stable Isotopic ◽  
Carrion Decomposition

Abstract. Decomposition provides a critical mechanism for returning nutrients to the surrounding environment. In terrestrial systems, animal carcass, or carrion, decomposition results in a cascade of biogeochemical changes. Soil microbial communities are stimulated, resulting in transformations of carbon (C) and nitrogen (N) sourced from the decaying carrion soft tissues, changes to soil pH, electrical conductivity, and oxygen availability as microbial communities release CO2 and mineralize organic N. While many of the rapid changes to soil biogeochemistry observed during carrion decomposition return to background or starting conditions shortly after soft tissues are degraded, some biogeochemical parameters, particularly bulk soil stable δ15N isotopic composition, have the potential to exhibit prolonged perturbations, extending for several years. The goal of this study was to evaluate the lateral and vertical changes to soil stable isotopic composition 1 year after carrion decomposition in a forest ecosystem. Lateral transects extending 140 cm from three decomposition “hotspots” were sampled at 20 cm intervals, and subsurface cores were collected beneath each hotspot to a depth of 50 cm. Bulk soil stable isotopic composition (δ15N and δ13C) indicated that 1 year after complete soft tissue removal and decay, soils were significantly 15N enriched by 7.5±1.0 ‰ compared to control soils up to 60 cm from the hotspot center, and enrichment extended to a depth of 10 cm. Hotspot soils also contained 10 % more N compared to control soils, indicating that decomposition perturbs N pools. Our results demonstrate that carrion decomposition has the potential to result in long-term changes to soil biogeochemistry, up to at least 1 year after soft tissue degradation, and to contribute to bulk soil stable isotopic composition.

Penguin activity influences soil biogeochemistry and soil respiration in rookeries on Ross Island, Antarctica

Polar Biology ◽  
2015 ◽  
Vol 38 (9) ◽  
pp. 1357-1368 ◽  
Author(s):  
Becky A. Ball ◽  
Chelsey R. Tellez ◽  
Ross A. Virginia
Keyword(s):  
Soil Respiration ◽  
Soil Biogeochemistry

Evaluating soil biogeochemistry parameterizations in Earth system models with observations

2014 ◽  
Vol 28 (3) ◽  
pp. 211-222 ◽  
Author(s):  
William R. Wieder ◽  
Jennifer Boehnert ◽  
Gordon B. Bonan
Keyword(s):  
Earth System ◽  
Soil Biogeochemistry ◽  
System Models ◽  
Earth System Models

Silvicultural treatments and subsequent vegetation impact long-term mineral soil biogeochemistry in mixedwood plantations

2016 ◽  
Vol 368 ◽  
pp. 140-150 ◽  
Author(s):  
Vincent Poirier ◽  
Marie R. Coyea ◽  
Denis A. Angers ◽  
Alison D. Munson
Keyword(s):  
Mineral Soil ◽  
Soil Biogeochemistry ◽  
Silvicultural Treatments ◽  
Vegetation Impact
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