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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Total soil carbon and water quality: An implication for carbon sequestration
Year:
2007
Authors :
פיין, פנחס
;
.
Volume :
71
Co-Authors:
Eshel, G., Inst. of Soil, Water and Environ. Sciences, ARO, Volcani Center, Bet Dagan 50250, Israel
Fine, P., Inst. of Soil, Water and Environ. Sciences, ARO, Volcani Center, Bet Dagan 50250, Israel
Singer, M.J., Dep. of Land, Air and Water Resources, Univ. of California, Davis, CA 95616, United States
Facilitators :
From page:
397
To page:
405
(
Total pages:
9
)
Abstract:
Carbon sequestration in soil has been suggested as a means of reducing the rate of increase of atmospheric CO2. Most soil science research has been on soil organic carbon (SOC) sequestration but in arid and semiarid climates, soil inorganic carbon (SIC) may offer another option for C sequestration. A field study was conducted in Bakersfield, CA, to determine if irrigation water quality (fresh water [FW] vs. treated effluent [TE]) affected the distribution and amount of SIC and SOC in the upper 4 m of soil and parent material compared to a nonirrigated (NI) field. Significant carbonate depletions were found in the upper 2 m in both irrigated fields compared with the NI. Differences in carbonate content between irrigated fields were also related to soil texture. Total carbonate and clay-size carbonate were more abundant at the sites irrigated with TE than at the sites irrigated with FW, indicating that the TE had inhibited carbonate dissolution. Based on stable isotope analyses ( 13C and 18O) and radiocarbon dating, we estimated that irrigation for >75 yr sequestered about 7.15 kg m-2 (4 m) -1 of SIC under FW and between 0.9 and 2.4 kg m-2 (4 m)-1 under TE, if carbonate dissolution is C sequestration. Adding C loss due to SOC decomposition to the SIC sequestration, the fields may be a source for 8.8 and 17.4 to 15.9 kg m-2 (4 m)-1 of C under FW and TE, respectively. This study provides some of the first evidence of how water quality affects the C budget in an arid region. © Soil Science Society of America.
Note:
Related Files :
arid region
California
carbonate
carbon sequestration
irrigation system
Isotopes
soil surveys
United States
עוד תגיות
תוכן קשור
More details
DOI :
10.2136/sssaj2006.0061
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20380
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:36
Scientific Publication
Total soil carbon and water quality: An implication for carbon sequestration
71
Eshel, G., Inst. of Soil, Water and Environ. Sciences, ARO, Volcani Center, Bet Dagan 50250, Israel
Fine, P., Inst. of Soil, Water and Environ. Sciences, ARO, Volcani Center, Bet Dagan 50250, Israel
Singer, M.J., Dep. of Land, Air and Water Resources, Univ. of California, Davis, CA 95616, United States
Total soil carbon and water quality: An implication for carbon sequestration
Carbon sequestration in soil has been suggested as a means of reducing the rate of increase of atmospheric CO2. Most soil science research has been on soil organic carbon (SOC) sequestration but in arid and semiarid climates, soil inorganic carbon (SIC) may offer another option for C sequestration. A field study was conducted in Bakersfield, CA, to determine if irrigation water quality (fresh water [FW] vs. treated effluent [TE]) affected the distribution and amount of SIC and SOC in the upper 4 m of soil and parent material compared to a nonirrigated (NI) field. Significant carbonate depletions were found in the upper 2 m in both irrigated fields compared with the NI. Differences in carbonate content between irrigated fields were also related to soil texture. Total carbonate and clay-size carbonate were more abundant at the sites irrigated with TE than at the sites irrigated with FW, indicating that the TE had inhibited carbonate dissolution. Based on stable isotope analyses ( 13C and 18O) and radiocarbon dating, we estimated that irrigation for >75 yr sequestered about 7.15 kg m-2 (4 m) -1 of SIC under FW and between 0.9 and 2.4 kg m-2 (4 m)-1 under TE, if carbonate dissolution is C sequestration. Adding C loss due to SOC decomposition to the SIC sequestration, the fields may be a source for 8.8 and 17.4 to 15.9 kg m-2 (4 m)-1 of C under FW and TE, respectively. This study provides some of the first evidence of how water quality affects the C budget in an arid region. © Soil Science Society of America.
Scientific Publication
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