银川市天然湖泊湿地水生植物的水质净化能力分析  

Analysis of ability of aquatic plants for water purification in natural wetlands of Yinchuan City

作　　者：钟艳霞[1] 罗玲玲[1] 虎雪姣[1] 杨帆[1] 吕金虎 

机构地区：[1]宁夏大学资源环境学院,宁夏银川750021 [2]银川市湿地管理办公室,宁夏银川750001

出　　处：《安徽大学学报（自然科学版）》2013年第3期104-108,共5页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(41161092);宁夏回族自治区宁陕合作项目资助(2010)

摘　　要：西部地区天然湖泊湿地水生植物的天然净化能力,不仅能够为污水的净化提供低耗高效的处理途径,而且能够充分满足西部地区经济社会发展的需求.文中利用水生植物茂盛期天然湖泊的水质监测结合空间分布,对银川市天然湖泊湿地——黄河湿地中水质开展空间分析.结果显示,随着农田退水水流进入湖泊的运动方向,水质污染物的空间分布与水生植物的分布具有一定的对应性,水生植物密集地区,污染物浓度有所下降,其中BOD5削减能力最强,CODCr次之,初步指示了天然植被的净化作用;不同的水生植物区域,净化能力略有差异,认为菖蒲的净化能力略强.The natural purification of aquatic plants of natural lake wetland can not only provide low power, high efficiency for wastewater purification treatment, and also fully meet the needs of economic and social development in the western region in China. By monitoring water quality of natural lakes when aquatic plants are blooming, based on spatial distribution of water quality, the spatial analysis was carried out at the Yellow River wetland in Yinchuan City. The results showed that as the movement direction of the irrigation water into the lake, the spatial distribution of the water pollution corresponded with aquatic plant areas, the pollutant concentration decreased in denseness aquatic plant area, BOD5 was cut significantly, CODcr next to it. The result initially indicated purification effect of the natural vegetation, the slight difference in purification capacity between the different aquatic plants areas. And it was deemed that the Acorus calamus Linn. has slightly strong ability of purification.

关 键 词：黄河湿地 水生植物 水质净化 

分 类 号：X524[环境科学与工程—环境工程]