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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2002.1957
Last checked: 02/28/2024
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https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2002.1957
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| Publication Type:
| Refereed |
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| Author(s): | Entry, James A.;
Sojka, R. E.;
Shewmaker, Glen E. |
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| Author Affiliation: | Entry and Sojka: USDA-ARS, Northwest Irrigation and Soils Research Laboratory, Kimberly, Idaho; Shewmaker: University of Idaho, Research and Extension Center, Twin Falls, Idaho |
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| Title: | Management of irrigated agriculture to increase organic carbon storage in soils |
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| Source: | Soil Science Society of America Journal. Vol. 66, No. 6, November/December 2002, p. 1957-1964. |
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| Publishing Information: | Madison, WI: Soil Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Carbon; Chemical properties of soil; Carbon dioxide; Irrigation; Agriculture; Air pollution; Atmosphere; Native grasses; Pastures; Environmental benefits
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| Abstract/Contents: | "Increasing the amount of C in soils may be one method to reduce the concentration of CO2 in the atmosphere. We measured organic C stored in southern Idaho soils having long term cropping histories that supported native sagebrush vegetation (NSB), irrigated moldboard plowed crops (IMP), irrigated conservation-chisel-tilled crops (ICT), and irrigated pasture systems (IP). The CO2 emitted as a result of fertilizer production, farm operations, and CO2 lost via dissolved carbonate in irrigation water, over a 30-yr period, was included. Net organic C in ecosystems decreased in the order IP > ICT > NSB > IMP. In this study, if NSB were converted to IMP, 0.15 g C m-2 would be emitted to the atmosphere, but if converted to IP 3.56 g C m-2 could be sequestered. If IMP land were converted to ICT, 0.95 g C m-2 could be sequestered in soil and if converted to IP 3.71 g C m-2 could be sequestered. There are 2.6 × 108 ha of land worldwide presently irrigated. If irrigated agriculture were expanded 10% and the same amount of rainfed land were converted back to native grassland, an increase of 3.4 × 109 Mg C (5.9% of the total C emitted in the next 30 yr) could potentially be sequestered. The total projected release of CO2 is 5.7 × 1010 Mg C worldwide during the next 30 yr. Converting rainfed agriculture back to native vegetation while modestly increasing areas in irrigated agriculture could have a significant impact on CO2 atmospheric concentrations while maintaining or increasing food production." |
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| Language: | English |
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| References: | 51 |
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| See Also: | Other items relating to: Carbon sequestration of turf |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Entry, J. A., R. E. Sojka, and G. E. Shewmaker. 2002. Management of irrigated agriculture to increase organic carbon storage in soils. Soil Sci. Soc. Am. J. 66(6):p. 1957-1964. |
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| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2002.1957
Last checked: 02/28/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2002.1957
Last checked: 02/28/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 590 .S65 |
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