[Mi, W. J.; Zhu, D. W.; Yang, T. W.] Huazhong Agr Univ, Coll Resources & Environm, Lab Plant Nutr & Ecol Environm Res, Wuhan 430070, Peoples R China; [Zhou, Y. Y.] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Zhou, H. D.] China Inst Water Resources & Hydropower Res, Dept Water Environm, Beijing 100038, Peoples R China; [Hamilton, D. P.] Univ Waikato, Ctr Biodiversity & Ecol Res, Hamilton 3240, New Zealand
WOS标题词:
Science & Technology
; Life Sciences & Biomedicine
类目[WOS]:
Marine & Freshwater Biology
研究领域[WOS]:
Marine & Freshwater Biology
摘要:
An incubation experiment was performed on Potamogeton crispus (P. crispus) using sediment collected from Lake Tangxunhu in the center of China, in order to determine the effects of plant growth on Fe, Si, Cu, Zn, Mn, Mg, P, and Ca concentrations in the sediments and overlying waters. After 3 months of incubation, Ca, Mg, and Si concentrations in the water column were significantly lower, and P and Cu concentrations were significantly higher than in unplanted controls. The effect of P. crispus growth on sediment pore waters and water-extractable elements varied. Concentrations of Ca, Mg, Si, Fe, Cu, and Zn were significantly higher, and P was significantly lower, than in pore waters of the control. Water-extracted concentrations of Fe, Mg, and Si in the sediments were lower, and P was higher, than in the control. Presence of P. crispus generally enhanced concentration gradients of elements between pore waters and overlying waters but not for P. The growth of P. crispus was associated with an increase in water pH and formation of root plaques, resulting in complex effects on the sediment nutritional status.
英文摘要:
An incubation experiment was performed on Potamogeton crispus (P. crispus) using sediment collected from Lake Tangxunhu in the center of China, in order to determine the effects of plant growth on Fe, Si, Cu, Zn, Mn, Mg, P, and Ca concentrations in the sediments and overlying waters. After 3 months of incubation, Ca, Mg, and Si concentrations in the water column were significantly lower, and P and Cu concentrations were significantly higher than in unplanted controls. The effect of P. crispus growth on sediment pore waters and water-extractable elements varied. Concentrations of Ca, Mg, Si, Fe, Cu, and Zn were significantly higher, and P was significantly lower, than in pore waters of the control. Water-extracted concentrations of Fe, Mg, and Si in the sediments were lower, and P was higher, than in the control. Presence of P. crispus generally enhanced concentration gradients of elements between pore waters and overlying waters but not for P. The growth of P. crispus was associated with an increase in water pH and formation of root plaques, resulting in complex effects on the sediment nutritional status.
1.Huazhong Agr Univ, Coll Resources & Environm, Lab Plant Nutr & Ecol Environm Res, Wuhan 430070, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 3.China Inst Water Resources & Hydropower Res, Dept Water Environm, Beijing 100038, Peoples R China 4.Univ Waikato, Ctr Biodiversity & Ecol Res, Hamilton 3240, New Zealand
Recommended Citation:
Mi, W. J.; Zhu, D. W.; Zhou, Y. Y.; Zhou, H. D.; Yang, T. W.; Hamilton, D. P..Influence of Potamogeton crispus growth on nutrients in the sediment and water of Lake Tangxunhu,HYDROBIOLOGIA,2008,603():139-146
