Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6335473 | Applied Geochemistry | 2011 | 8 Pages |
Abstract
⺠Oxygen isotopic analysis of phosphate is a useful tool for studying source and degree of microbial cycling of phosphorus (P) in freshwater ecosystems. ⺠P was quickly cycled in the water column and the dissolved inorganic phosphate (DIP) pool consisted entirely of biologically cycled P in relatively pristine areas of the Everglades wetland ecosystem. âºIn wetland areas highly impacted by agricultural runoff, biological cycling of P was not rapid enough to completely remove the fertilizer δ18O signature. âºDIP pool in these areas consisted of biologically cycled P as well as fertilizer P, with fertilizer P accounting for about 15-100% of the total DIP.
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Authors
Xin Li, Yang Wang, Jennifer Stern, Binhe Gu,