scholarly journals Soil organic matter turnover over decadal to millennial timescales

2019 ◽  
Author(s):  
Andrew Jones
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Matter Turnover ◽  
Soil Organic Matter Turnover

Soil organic matter turnover is governed by accessibility not recalcitrance

2012 ◽  
Vol 18 (6) ◽  
pp. 1781-1796 ◽  
Author(s):  
Jennifer A. J. Dungait ◽  
David W. Hopkins ◽  
Andrew S. Gregory ◽  
Andrew P. Whitmore
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Matter Turnover ◽  
Soil Organic Matter Turnover

scholarly journals Effects of permafrost degradation on soil organic matter turnover and plant growth

CATENA ◽  
2022 ◽  
Vol 208 ◽  
pp. 105721
Author(s):  
Lina Che ◽  
Muyang Cheng ◽  
Libo Xing ◽  
Yifan Cui ◽  
Luhe Wan
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Plant Growth ◽  
Permafrost Degradation ◽  
Organic Matter Turnover ◽  
Soil Organic Matter Turnover

scholarly journals Using Bulk Soil Radiocarbon Measurements to Estimate Soil Organic Matter Turnover Times: Implications for Atmospheric CO2 Levels

Radiocarbon ◽  
1996 ◽  
Vol 38 (2) ◽  
pp. 181-190 ◽  
Author(s):  
Kevin G. Harrison
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Carbon ◽  
Carbon Storage ◽  
Organic Matter Turnover ◽  
Native Soil ◽  
Soil Organic Matter Turnover ◽  
Anthropogenic Nitrogen ◽  
Derivatives Of ◽  
Anthropogenic Nitrogen Deposition

Although soil contains about three times the amount of carbon present in the preindustrial atmosphere, determining how perturbations (e.g., changing land use, CO2 fertilization, changing climate and anthropogenic nitrogen deposition) alter soil carbon storage and influence atmospheric CO2 levels has proved elusive. Not knowing the soil carbon turnover times causes part of this uncertainty. I outline a strategy for using radiocarbon measurements to estimate soil organic matter turnover times and inventories in native soil. The resulting estimates of carbon exchange produce reasonable agreement with measurements of CO2 fluxes from soil. Furthermore, derivatives of the model are used to explore soil carbon dynamics of cultivated and recovering soil. Because the models can reproduce observed soil 14C measurements in native, cultivated, and recovering ecosystems (i.e., the underlying assumptions appear reasonable), the native model was modified to estimate the potential rate of additional carbon storage because of CO2 fertilization. This process may account for 45–65% of the “missing CO2 sink.”

scholarly journals The use of radiocarbon to constrain current and future soil organic matter turnover and transport in a temperate forest

2014 ◽  
Vol 119 (3) ◽  
pp. 372-391 ◽  
Author(s):  
Maarten C. Braakhekke ◽  
Christian Beer ◽  
Marion Schrumpf ◽  
Altug Ekici ◽  
Bernhard Ahrens ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Temperate Forest ◽  
Organic Matter Turnover ◽  
Soil Organic Matter Turnover
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