Characteristic of phytoplankton primary productivity and influencing factors in littoral zone of Lake Taihu

In the lakes lacking higher aquatic plants, phytoplankton is the most important primary producer, and the basis of material circulation and energy flow in the aquatic ecosystems. Knowledge of phytoplankton primary productivity and its influencing factors is fundamental to the understanding of lake e...

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Veröffentlicht in:Sheng tai xue bao 2013, Vol.33 (22), p.7250-7258
Hauptverfasser: CAI, Linlin, ZHU, Guangwei, LI, Xiangyang
Format: Artikel
Sprache:eng
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Zusammenfassung:In the lakes lacking higher aquatic plants, phytoplankton is the most important primary producer, and the basis of material circulation and energy flow in the aquatic ecosystems. Knowledge of phytoplankton primary productivity and its influencing factors is fundamental to the understanding of lake ecosystem dynamics and the assessment of lake ecosystem service functions. In our study, we analyzed phytoplankton primary productivity characteristics and influencing factors, using the high frequency monitoring data and synchronous anniversary in situ observation data in littoral zone of Meiliang Bay, Lake Taihu in 2010. Statistical analysis also showed that water temperature is an important factor influencing the change of phytoplankton primary productivity in Lake Taihu. The supply of nitrogen and the selectivity prey of zooplankton were also important for the variations of phytoplankton primary productivity. The high frequency dissolved oxygen monitoring can capture those algae accumulating processes. Thus the high frequency dissolved oxygen monitoring can be used in the monitoring of phytoplankton primary productivity and the warning of algal bloom disaster.
ISSN:1000-0933
DOI:10.5846/stxb201207251059