The Effects of Mechanical Harvesting of Floating Plant Tussock Communities on Water Quality in Lake Istokpoga, Florida
作者:
ShawnK. Alam,
LothianA. Ager,
TomM. Rosegger,
TedR. Lange,
期刊:
Lake and Reservoir Management
(Taylor Available online 1996)
卷期:
Volume 12,
issue 4
页码: 455-461
ISSN:1040-2381
年代: 1996
DOI:10.1080/07438149609354285
出版商: Taylor & Francis Group
关键词: harvesting;floating plants;tussocks;turbidity;water quality
数据来源: Taylor
摘要:
The effects of harvesting floating plant tussock communities by mechanical methods on selected water quality parameters in Lake Istokpoga, Florida were examined. Dissolved oxygen, temperature, pH, conductivity, turbidity, chlorophylla, and nutrients (nitrogen and phosphorus) were compared under pre-harvest, harvest and post-harvest conditions. Water quality data were compared between one tussock harvest site and three reference sites (30 m, 61 m, and 91 m away from the harvested plot). Very minor, although statistically detectable (p < 0.05), DO differences occurred at harvest site. Chlorophylla, total nitrogen and total phosphorus concentrations decreased significantly during the harvest. Loadings of total nitrogen concentrations in Lake Istokpoga could be reduced by harvesting of floating plant communities in the littoral areas. A significant increase in turbidity and dissolved solids occurred during mechanical harvesting in both the harvested plot and the reference site 30 m away.
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