Effects of integrating grass‐clover leys with livestock into arable crop rotations on soil carbon stocks and particulate and mineral‐associated soil organic matter fractions in conventional and organic systems

2021 ◽  
Author(s):  
C. F. Zani ◽  
E. Lopez‐Capel ◽  
G. D. Abbott ◽  
J. A. Taylor ◽  
J. M. Cooper
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Carbon ◽  
Carbon Stocks ◽  
Crop Rotations ◽  
Soil Organic Matter Fractions ◽  
Organic Systems ◽  
Arable Crop ◽  
Soil Carbon Stocks ◽  
Organic Matter Fractions

scholarly journals Long-term doubling of litter inputs accelerates soil organic matter degradation and reduces soil carbon stocks

2015 ◽  
Vol 127 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Oliva Pisani ◽  
Lisa H. Lin ◽  
Olivia O. Y. Lun ◽  
Kate Lajtha ◽  
Knute J. Nadelhoffer ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Carbon ◽  
Carbon Stocks ◽  
Organic Matter Degradation ◽  
Soil Carbon Stocks

Soil Organic Matter Fractions under Managed Pine Plantations of the Southeastern USA

2004 ◽  
Vol 68 (3) ◽  
pp. 950 ◽  
Author(s):  
Marietta E. Echeverría ◽  
Daniel Markewitz ◽  
Lawrence A. Morris ◽  
Ronald L. Hendrick
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Pine Plantations ◽  
Southeastern Usa ◽  
Soil Organic Matter Fractions ◽  
Organic Matter Fractions

scholarly journals Greater soil carbon stocks and faster turnover rates with increasing agricultural productivity

SOIL ◽  
2017 ◽  
Vol 3 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Jonathan Sanderman ◽  
Courtney Creamer ◽  
W. Troy Baisden ◽  
Mark Farrell ◽  
Stewart Fallon
Keyword(s):  
Organic Matter ◽  
Soil Carbon ◽  
Sugar Content ◽  
Bulk Composition ◽  
Agricultural Productivity ◽  
Carbon Stocks ◽  
Decay Rates ◽  
Turnover Rates ◽  
Soil Carbon Stocks

Abstract. Devising agricultural management schemes that enhance food security and soil carbon levels is a high priority for many nations. However, the coupling between agricultural productivity, soil carbon stocks and organic matter turnover rates is still unclear. Archived soil samples from four decades of a long-term crop rotation trial were analyzed for soil organic matter (SOM) cycling-relevant properties: C and N content, bulk composition by nuclear magnetic resonance (NMR) spectroscopy, amino sugar content, short-term C bioavailability assays, and long-term C turnover rates by modeling the incorporation of the bomb spike in atmospheric 14C into the soil. After > 40 years under consistent management, topsoil carbon stocks ranged from 14 to 33 Mg C ha−1 and were linearly related to the mean productivity of each treatment. Measurements of SOM composition demonstrated increasing amounts of plant- and microbially derived SOM along the productivity gradient. Under two modeling scenarios, radiocarbon data indicated overall SOM turnover time decreased from 40 to 13 years with increasing productivity – twice the rate of decline predicted from simple steady-state models or static three-pool decay rates of measured C pool distributions. Similarly, the half-life of synthetic root exudates decreased from 30.4 to 21.5 h with increasing productivity, indicating accelerated microbial activity. These findings suggest that there is a direct feedback between accelerated biological activity, carbon cycling rates and rates of carbon stabilization with important implications for how SOM dynamics are represented in models.

scholarly journals Land use impacts on physical-based soil organic matter fractions on three hillside Ferrasols in Mexico

2011 ◽  
Vol 71 (2) ◽  
pp. 283-292 ◽  
Author(s):  
Francisco Matus ◽  
Claudia Hidalgo ◽  
Carlos Monreal ◽  
Isabel Estrada ◽  
Mariela Fuentes ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Land Use Impacts ◽  
Soil Organic Matter Fractions ◽  
Organic Matter Fractions

Decomposition temperature sensitivity of isolated soil organic matter fractions

2010 ◽  
Vol 42 (11) ◽  
pp. 1991-1996 ◽  
Author(s):  
Alain F. Plante ◽  
Richard T. Conant ◽  
Jenny Carlson ◽  
Rebecca Greenwood ◽  
Jeremy M. Shulman ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Temperature Sensitivity ◽  
Decomposition Temperature ◽  
Soil Organic Matter Fractions ◽  
Organic Matter Fractions

Using soil organic matter fractions as indicators of soil physical quality

2018 ◽  
Vol 34 (2) ◽  
pp. 187-196 ◽  
Author(s):  
M. Pulido-Moncada ◽  
Z. Lozano ◽  
M. Delgado ◽  
M. Dumon ◽  
E. Van Ranst ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Physical Quality ◽  
Soil Organic Matter Fractions ◽  
Soil Physical Quality ◽  
Organic Matter Fractions
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