Large catchment-scale spatiotemporal distribution of soil organic carbon

Geoderma ◽  
2019 ◽  
Vol 334 ◽  
pp. 175-185 ◽  
Author(s):  
V. Kunkel ◽  
G.R. Hancock ◽  
T. Wells
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Spatiotemporal Distribution ◽  
Catchment Scale ◽  
Large Catchment

Soil organic carbon and soil erosion – Understanding change at the large catchment scale

Geoderma ◽  
2019 ◽  
Vol 343 ◽  
pp. 60-71 ◽  
Author(s):  
G.R. Hancock ◽  
V. Kunkel ◽  
T. Wells ◽  
Cristina Martinez
Keyword(s):  
Soil Erosion ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Catchment Scale ◽  
Large Catchment

scholarly journals Australian net (1950s–1990) soil organic carbon erosion: implications for CO<sub>2</sub> emission and land–atmosphere modelling

2014 ◽  
Vol 11 (18) ◽  
pp. 5235-5244 ◽  
Author(s):  
A. Chappell ◽  
N. P. Webb ◽  
R. A. Viscarra Rossel ◽  
E. Bui
Keyword(s):  
Soil Erosion ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Land Surface ◽  
Total Carbon ◽  
Catchment Scale ◽  
European Settlement ◽  
Surface Models ◽  
Management Context ◽  
Land Use And Management

Abstract. The debate remains unresolved about soil erosion substantially offsetting fossil fuel emissions and acting as an important source or sink of CO2. There is little historical land use and management context to this debate, which is central to Australia's recent past of European settlement, agricultural expansion and agriculturally-induced soil erosion. We use "catchment" scale (∼25 km2) estimates of 137Cs-derived net (1950s–1990) soil redistribution of all processes (wind, water and tillage) to calculate the net soil organic carbon (SOC) redistribution across Australia. We approximate the selective removal of SOC at net eroding locations and SOC enrichment of transported sediment and net depositional locations. We map net (1950s–1990) SOC redistribution across Australia and estimate erosion by all processes to be ∼4 Tg SOC yr−1, which represents a loss of ∼2% of the total carbon stock (0–10 cm) of Australia. Assuming this net SOC loss is mineralised, the flux (∼15 Tg CO2-equivalents yr−1) represents an omitted 12% of CO2-equivalent emissions from all carbon pools in Australia. Although a small source of uncertainty in the Australian carbon budget, the mass flux interacts with energy and water fluxes, and its omission from land surface models likely creates more uncertainty than has been previously recognised.

Soil organic carbon density and stock at the catchment scale of a hilly region of the loess plateau

2015 ◽  
Vol 35 (9) ◽  
Author(s):  
薛志婧 XUE Zhijing ◽  
马露莎 MA Lusha ◽  
安韶山 AN Shaoshan ◽  
王万忠 WANG Wanzhong
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Loess Plateau ◽  
Carbon Density ◽  
The Loess Plateau ◽  
Catchment Scale ◽  
Hilly Region ◽  
Soil Organic Carbon Density

scholarly journals Terrain attributes and forage productivity predict catchment-scale soil organic carbon stocks

Geoderma ◽  
2020 ◽  
Vol 368 ◽  
pp. 114286
Author(s):  
Scott M. Devine ◽  
Anthony T. O'Geen ◽  
Han Liu ◽  
Yufang Jin ◽  
Helen E. Dahlke ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Stocks ◽  
Catchment Scale ◽  
Terrain Attributes ◽  
Soil Organic Carbon Stocks

scholarly journals Comparison of catchment scale 3D and 2.5D modelling of soil organic carbon stocks in Jiangxi Province, PR China

PLoS ONE ◽  
2019 ◽  
Vol 14 (8) ◽  
pp. e0220881 ◽  
Author(s):  
Tobias Rentschler ◽  
Philipp Gries ◽  
Thorsten Behrens ◽  
Helge Bruelheide ◽  
Peter Kühn ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Stocks ◽  
Jiangxi Province ◽  
Catchment Scale ◽  
Soil Organic Carbon Stocks ◽  
Pr China

scholarly journals Impact of agricultural land use on soil organic carbon sequestration at sub-catchment scale

2020 ◽  
Vol 31 (1) ◽  
pp. 13 ◽  
Author(s):  
D. D. A. E. Hemamali ◽  
U. W. A. Vitharana ◽  
B. L. W. K. Balasooriya ◽  
C. P. Attanayake ◽  
W. S. Dandeniya ◽  
...  
Keyword(s):  
Land Use ◽  
Carbon Sequestration ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Agricultural Land ◽  
Agricultural Land Use ◽  
Catchment Scale ◽  
Soil Organic Carbon Sequestration ◽  
Organic Carbon Sequestration

scholarly journals Australian net (1950s–1990) soil organic carbon erosion: implications for CO<sub>2</sub> emission and land–atmosphere modelling

2014 ◽  
Vol 11 (5) ◽  
pp. 6793-6814 ◽  
Author(s):  
A. Chappell ◽  
N. P. Webb ◽  
R. A. Viscarra Rossel ◽  
E. Bui
Keyword(s):  
Soil Erosion ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Land Surface ◽  
Total Carbon ◽  
Catchment Scale ◽  
European Settlement ◽  
Surface Models ◽  
Management Context ◽  
Land Use And Management

Abstract. The debate about soil erosion substantially offsetting fossil fuel emissions and acting as an important source or sink of CO2 remains unresolved. There is little historical land use and management context to this debate which is central to Australia's recent past of European settlement, agricultural expansion and agriculturally-induced soil erosion. We use "catchment" scale (∼25 km2) estimates of 137Cs-derived net (1950s–1990) soil redistribution of all processes (wind, water and tillage) to calculate the net soil organic carbon (SOC) redistribution across Australia. We approximate the selective removal of SOC at net eroding locations and SOC enrichment of transported sediment and net depositional locations. We map net (1950s–1990) SOC redistribtion across Australia and estimate erosion by all processes ∼4 Tg SOC yr−1 which represents a~loss of ∼2% of the total carbon stock (0–10 cm) of Australia. Assuming this net SOC loss is mineralised, the flux (∼15 Tg CO2-e yr−1) represents an omitted 12% of CO2-e emissions from all carbon pools in Australia. Although a small source of uncertainty in the Australian carbon budget, the mass flux interacts with energy and water fluxes and its omission from land surface models likely creates more uncertainty than has been previously recognised.

Catchment scale mapping of measureable soil organic carbon fractions

Geoderma ◽  
2014 ◽  
Vol 219-220 ◽  
pp. 14-23 ◽  
Author(s):  
S.B. Karunaratne ◽  
T.F.A. Bishop ◽  
J.A. Baldock ◽  
I.O.A. Odeh
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Catchment Scale ◽  
Carbon Fractions ◽  
Organic Carbon Fractions ◽  
Soil Organic Carbon Fractions
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