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Can near or mid-infrared diffuse reflectance spectroscopy be used to determine soil carbon pools?
被引:74
|作者:
Reeves, James B., III
Follett, Ronald F.
McCarty, Gregory W.
Kimble, John M.
机构:
[1] USDA ARS, AMBL, BARC, Environm Management & By Prod Utilizat Lab, Beltsville, MD 20705 USA
[2] USDA ARS, Hydrol & Remote Sensing Lab, Beltsville, MD USA
[3] USDA, Nat Resources Conservat Serv, Lincoln, NE USA
关键词:
carbon;
soil;
SOC;
SIC;
delta C-13;
D O I:
10.1080/00103620600819461
中图分类号:
S3 [农学(农艺学)];
学科分类号:
0901 ;
摘要:
The objective of this study was to compare mid-infrared (MIR) an near-infrared (NIR) spectroscopy (MIRS and NIRS, respectively) not only to measure soil carbon content, but also to measure key soil organic C (SOC) fractions and the delta C-13 in a highly diverse set of soils while also assessing the feasibility of establishing regional diffuse reflectance calibrations for these fractions. Two hundred and thirty-seven soil samples were collected from 14 sites in 10 western states (CO, IA, MN, MO, MT, ND, NE, NM, OK, TX). Two subsets of these were examined for a variety of C measures by conventional assays and NIRS and MIRS. Biomass C and N, soil inorganic C ( SIC), SOC, total C, identifiable plant material (IPM)
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页码:2307 / 2325
页数:19
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