Root zone microbial populations, urease activities, and purification efficiency for a constructed wetland
文献类型：期刊论文
| 作者 | Liang, W; Wu, ZB; Zhan, FC; Deng, JQ |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 14期号:3页码:401-404 |
| 关键词 | macrophytic root zone microbial population purification efficiency urease activity wetland |
| ISSN号 | 1002-0160 |
| 通讯作者 | Liang, W, Tsing Hua Univ, Dept Environm Sci & Engn, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China |
| 中文摘要 | In order to investigate the effects of microorganisms and their urease activities in macrophytic root zones on pollutant removal, four small-scale plots (SSPs) of vertical/reverse-vertical flow wetlands were set up to determine: a) the relationship between the abundance of microorganisms in the root zones and water purification efficiency; and b) the relationship between urease activities in the root zones and pollutant removal in a constructed wetland system. Total numbers of the microbial population (bacteria, fungi, and actinomyces) along with urease activities in the macrophytic root zones were determined. In addition, the relationships between microbial populations and urease activities as well as the wastewater purification efficiencies of total phosphorus (TP), total Kjeldahl nitrogen (TKN), biochemical oxygen demand in 5 days (BOD5), and chemical oxygen demand (COD) were also analyzed. The results showed that there was a highly significant positive correlation (r = 0.9772, P < 0.01) between the number of bacteria in the root zones and BOD5 removal efficiency and a significant negative correlation (r = -0.9092, P < 0.05) between the number of fungi and the removal efficiency of TKN. Meanwhile, there was a significant positive correlation (r = 0.8830, P < 0.05) between urease activities in the root zones and the removal efficiency of TKN. Thus, during wastewater treatment in a constructed wetland system, microorganism and urease activities in the root zones were very important factors. |
| 英文摘要 | In order to investigate the effects of microorganisms and their urease activities in macrophytic root zones on pollutant removal, four small-scale plots (SSPs) of vertical/reverse-vertical flow wetlands were set up to determine: a) the relationship between the abundance of microorganisms in the root zones and water purification efficiency; and b) the relationship between urease activities in the root zones and pollutant removal in a constructed wetland system. Total numbers of the microbial population (bacteria, fungi, and actinomyces) along with urease activities in the macrophytic root zones were determined. In addition, the relationships between microbial populations and urease activities as well as the wastewater purification efficiencies of total phosphorus (TP), total Kjeldahl nitrogen (TKN), biochemical oxygen demand in 5 days (BOD5), and chemical oxygen demand (COD) were also analyzed. The results showed that there was a highly significant positive correlation (r = 0.9772, P < 0.01) between the number of bacteria in the root zones and BOD5 removal efficiency and a significant negative correlation (r = -0.9092, P < 0.05) between the number of fungi and the removal efficiency of TKN. Meanwhile, there was a significant positive correlation (r = 0.8830, P < 0.05) between urease activities in the root zones and the removal efficiency of TKN. Thus, during wastewater treatment in a constructed wetland system, microorganism and urease activities in the root zones were very important factors. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Soil Science |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | NITROGEN REMOVAL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000223068400017 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/9452]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Tsing Hua Univ, Dept Environm Sci & Engn, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, W,Wu, ZB,Zhan, FC,et al. Root zone microbial populations, urease activities, and purification efficiency for a constructed wetland[J]. PEDOSPHERE,2004,14(3):401-404. |
| APA | Liang, W,Wu, ZB,Zhan, FC,&Deng, JQ.(2004).Root zone microbial populations, urease activities, and purification efficiency for a constructed wetland.PEDOSPHERE,14(3),401-404. |
| MLA | Liang, W,et al."Root zone microbial populations, urease activities, and purification efficiency for a constructed wetland".PEDOSPHERE 14.3(2004):401-404. |
入库方式： OAI收割
来源：水生生物研究所
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