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Phosphorus speciation of forest-soil organic surface layers using P K-edge XANES spectroscopy
被引:13
|作者:
Prietzel, Joerg
[1
]
Thieme, Juergen
[2
]
Paterson, David
[3
]
机构:
[1] Tech Univ Munich, Lehrstuhl Bodenkunde, D-85350 Freising Weihenstephan, Germany
[2] Brookhaven Natl Lab, NSLS 2, Upton, NY 11973 USA
[3] Australian Synchrotron, Clayton, Vic 3168, Australia
关键词:
X-ray Absorption Near-Edge Spectroscopy;
P speciation;
groundwater influence;
synchrotron-based spectroscopy;
forest floor;
D O I:
10.1002/jpln.201000248
中图分类号:
S3 [农学(农艺学)];
学科分类号:
0901 ;
摘要:
The phosphorus (P) speciation of organic surface layers from two adjacent German forest soils with different degree of water-logging (Stagnosol, Rheic Histosol) was analyzed by P K-edge XANES and subsequent Linear Combination Fitting. In both soils, approximate to 70% of the P was inorganic phosphate and approximate to 30% organic phosphate; reduced P forms such as phosphonate were absent. The increased degree of water-logging in the Histosol compared to the Stagnosol did not affect P speciation.
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页码:805 / 807
页数:3
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