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人工湿地中植物生长特性及其对TN和TP的吸收

金卫红 付融冰 顾国维

金卫红, 付融冰, 顾国维. 人工湿地中植物生长特性及其对TN和TP的吸收[J]. 环境科学研究, 2007, 20(3): 75-80.
引用本文: 金卫红, 付融冰, 顾国维. 人工湿地中植物生长特性及其对TN和TP的吸收[J]. 环境科学研究, 2007, 20(3): 75-80.
JIN Wei-hong, FU Rong-bing, GU Guo-wei. Plant Growth Characteristics and Nutrient Uptake from Eutrophic Water in Constructed Wetlands[J]. Research of Environmental Sciences, 2007, 20(3): 75-80.
Citation: JIN Wei-hong, FU Rong-bing, GU Guo-wei. Plant Growth Characteristics and Nutrient Uptake from Eutrophic Water in Constructed Wetlands[J]. Research of Environmental Sciences, 2007, 20(3): 75-80.

人工湿地中植物生长特性及其对TN和TP的吸收

基金项目: 浙江省教育厅科研项目(20061124)

Plant Growth Characteristics and Nutrient Uptake from Eutrophic Water in Constructed Wetlands

  • 摘要: 构建了潜流水平芦苇湿地处理富营养化污水,在近2年的研究中考察了芦苇的生长规律、 芦苇不同器官对TN和TP的吸收及季节变化,评价了植物吸收对湿地TN和TP的去除作用.结果表明,2个生长年内芦苇的生长规律不同,受第1年芦苇移植的影响,芦苇生长周期滞后,导致植物立枯生物量与活体生物量比例在2年中相同月差异很大.第2年芦苇地上生物量是第1年的3.9倍.芦苇组织中TN和TP含量遵循新鲜叶>成年根>新鲜茎的规律.新鲜植物组织中TN和TP含量变化相对不大,当植物枯萎时地上组织TN和TP含量明显下降.根中TN和TP含量在全年中基本维持稳定.植物净吸收随植物生长情况而改变,按全年衡算,当湿地进水TN和TP负荷分别为61.39和7.39 g/(m2·a)时,植物地上生物量吸收TN和TP分别占湿地TN和TP总去除量的46.0%和26.8%,植物吸收仍起到重要作用.

     

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  • 刊出日期:  2007-06-25

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