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环境因子及沉水植物对底泥磷释放的影响研究
引用本文:蔡景波,丁学锋,彭红云,常会庆,杨肖娥,濮培民.环境因子及沉水植物对底泥磷释放的影响研究[J].水土保持学报,2007,21(2):151-154.
作者姓名:蔡景波  丁学锋  彭红云  常会庆  杨肖娥  濮培民
作者单位:浙江大学,环境与资源学院,环境修复与生态健康教育部重点实验室,浙江,杭州,310029,浙江省海洋水产养殖研究所,浙江,温州,325005
基金项目:教育部科技创新工程重大项目;浙江省科技厅资助项目
摘    要:通过环境因子(温度、pH、扰动、溶解氧等)及沉水植物对底泥磷释放影响的研究,分析了环境因子影响底泥磷释放的因素,及不同环境条件下沉水植物影响底泥磷释放的因素,得出了如下结论:溶解氧、pH、温度及扰动等对底泥磷向上覆水体释放都有一定影响,其中溶解氧和pH值影响较大;湖泊特别浅水型湖泊中,磷对水体富营养化起重要作用;沉水植物在控制湖泊底泥营养向水体扩散、风等外界因素扰动底泥起关键作用;浅水型湖泊中,湖泊底泥受扰动较大适合种植象狐尾藻类多分枝的沉水植物,这样有利于抑制底泥磷向水体的释放.

关 键 词:环境因子  沉水植物  底泥  磷释放
文章编号:1009-2242(2007)02-0151-04
收稿时间:2006-04-12
修稿时间:2006-04-12

Impact of Eenvironmental Factors and Submerged Plant on Phosphate Release from Sediment
CAI Jing-bo,DING Xue-feng,PENG Hong-yun,CHANG Hui-qing,YANG Xiao-e,PU Pei-min.Impact of Eenvironmental Factors and Submerged Plant on Phosphate Release from Sediment[J].Journal of Soil and Water Conservation,2007,21(2):151-154.
Authors:CAI Jing-bo  DING Xue-feng  PENG Hong-yun  CHANG Hui-qing  YANG Xiao-e  PU Pei-min
Abstract:Through investigation on the impact of environmental factors(including dissolved oxygen,pH value,temperature and disturbance) and submerged plant on phosphate release from sediment,the impact factors of environmental factors affecting phosphate release,and submerged plant affecting phosphate release under different environmental factors have been analyzed.It can be concluded that dissolved oxygen,pH value,temperature and disturbance can affect phosphate release from the sediment,among which,both dissolved oxygen and pH value are the more important environmental factors;phosphate in lakes especially the shallow ones plays an important role in water eutrophication;and submerged plant play a key part in preventing the sediment from being stirred by environmental factors such as water pervasion,winds and so on;moreover,in the shallow lakes,it is of practical value to revive submerged plant like Myriophyllum spicatum L.in the sediment under the conditions with the greater disturbances in lake,for the control of phosphate release from the sediment.
Keywords:environmental factors  phosphorus release  submerged plant  sediments
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