Journal
ENVIRONMENTAL POLLUTION
Volume 120, Issue 2, Pages 313-317Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0269-7491(02)00147-1
Keywords
atmospheric nitrogen deposition; peat; phosphatase; phosphomonoesterase; phosphorus; soil; uplands
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Phosphomonoesterase activities were determined monthly during a seasonal cycle in three characteristic soil types of the English uplands that have been subject to long-term atmospheric nitrogen deposition. Activities (mumol para-nitrophenol g(-1) soil dry wt. h(-1)) ranged between 83.9 and 307 in a blanket peat (total carbon 318 mg g(-1), pH 3.9), 45.2-86.4 in an acid organic grassland soil (total carbon 354 mg g(-1), pH 3.7) and 10.4-21.1 in a calcareous grassland soil (total carbon 140 mg g(-1), pH 7.3). These are amongst the highest reported soil phosphomonoesterase activities and confirm the strong biological phosphorus limitation in this environment. (C) 2002 Elsevier Science Ltd. All rights reserved.
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