IHB OpenIR  > 淡水生态学研究中心  > 期刊论文
Effects of moderate ammonium enrichment on three submersed macrophytes under contrasting light availability
Cao, Te; Ni, Leyi; Xie, Ping; Xu, Jun; Zhang, Meng; Ni, LY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; Nily@ihb.ac.cn
2011
Source PublicationFRESHWATER BIOLOGY
ISSN0046-5070
Volume56Issue:8Pages:1620-1629
Abstract1. Increased ammonium concentrations and decreased light availability in a water column have been reported to adversely affect submersed vegetation in eutrophic waters worldwide. 2. We studied the chronic effects of moderate NH(4)(+) enrichment (NH(4)-N: 0.16-0.25 mg L(-1)) on the growth and carbon and nitrogen metabolism of three macrophytes (Ceratophyllum demersum, Myriophyllum spicatum and Vallisneria natans) under contrasting light availability in a 2-month experiment. 3. The NH(4)(+) enrichment greatly increased the contents of free amino acids and nitrogen in the shoot/leaf of the macrophytes. This indicates that NH(4)(+) was the dominant N source for the macrophytes. 4. Soluble carbohydrate contents remained relatively stable in the shoot/leaf of the macrophytes irrespective of the treatments. Under ambient light, the starch contents in the shoot/leaf of C. demersum and M. spicatum increased with NH(4)(+) enrichment, whereas V. natans did not exhibit any change. The starch contents decreased in C. demersum, increased in M. spicatum and remained unchanged in V. natans after the combined treatment of NH(4)(+) enrichment and reduced light. 5. The NH(4)(+) enrichment did not affect the growth of the three macrophytes under the ambient light. However, it did suppress the growth of C. demersum and M. spicatum under the reduced light. The results indicate that a moderate NH(4)(+) enrichment was not directly toxic to the macrophytes although it might change their viability in eutrophic lakes in terms of the carbon and nitrogen metabolism.
KeywordCarbohydrate Eutrophication Low Light Stress Nitrogen Metabolism Submersed Macrophyte
Department[Cao, T; Ni, LY; Xie, P; Xu, J] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; [Zhang, M] Jiangxi Acad Environm Sci, Nanchang, Peoples R China
Subject AreaMarine & Freshwater Biology
Funding OrganizationStudy on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105] ; Study on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105] ; Study on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105] ; Study on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105]
Indexed BySCI
Language英语
WOS IDWOS:000292446700013
Funding OrganizationStudy on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105] ; Study on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105] ; Study on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105] ; Study on Aquatic Ecology, Nutrient Loading and Prevention of Ecological Degradation in Lake Erhai (National High Technology Research and Development Program of China)[2008ZX07105-005]; Rapid Restoration of Submersed Vegetation in a Short-Term Phase of Clear Water in Eutrophic Lake (National Basic Research Program of China)[2008CB418105]
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Cited Times:79[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16287
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorNi, LY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China; Nily@ihb.ac.cn
Recommended Citation
GB/T 7714
Cao, Te,Ni, Leyi,Xie, Ping,et al. Effects of moderate ammonium enrichment on three submersed macrophytes under contrasting light availability[J]. FRESHWATER BIOLOGY,2011,56(8):1620-1629.
APA Cao, Te.,Ni, Leyi.,Xie, Ping.,Xu, Jun.,Zhang, Meng.,...&Nily@ihb.ac.cn.(2011).Effects of moderate ammonium enrichment on three submersed macrophytes under contrasting light availability.FRESHWATER BIOLOGY,56(8),1620-1629.
MLA Cao, Te,et al."Effects of moderate ammonium enrichment on three submersed macrophytes under contrasting light availability".FRESHWATER BIOLOGY 56.8(2011):1620-1629.
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