Analysis of Summer Phosphorus Fluxes Within the Pelagic Zone of Eau Galle Reservoir, Wisconsin
作者:
WilliamF. James,
JohnW. Barko,
期刊:
Lake and Reservoir Management
(Taylor Available online 1993)
卷期:
Volume 8,
issue 1
页码: 61-66
ISSN:1040-2381
年代: 1993
DOI:10.1080/07438149309354459
出版商: Taylor & Francis Group
关键词: external phosphorus loading;internal phosphorus loading;littoral zone;pelagic zone;phosphorus;reservoirs
数据来源: Taylor
摘要:
Major phosphorus (P) fluxes to and from the pelagic zone (i.e., open water region including epilimnion, metalimnion, and hypolimnion) were estimated from data collected over a 6 year period during the summer in Eau Galle Reservoir, Wisconsin. P inputs to the pelagic zone included profundal sediments, the watershed, groundwater, and transport of P from the littoral zone. P outputs from the pelagic zone included discharge from the reservoir, deposition, and transport of P to the littoral zone. Nighttime convective circulation was assumed to be the dominant mechanism of P exchange between the littoral and pelagic zones. Littoral P inputs, often neglected from budgetary analyses, accounted for 15% of the total measured P input and 25% of the internal P input to the pelagic zone. External P inputs were greatest, accounting for 42% of the total measured P input to the pelagic zone. These results emphasize the need for control of various sources of P inputs in the development of lake and reservoir management strategies.
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