|
|||||
|
|
| 底泥疏浚对温州市牛桥底河水环境质量的影响 | |
| 引用本文： | 童敏,杨乐,黄民生,何岩,曹承进.底泥疏浚对温州市牛桥底河水环境质量的影响[J].华东师范大学学报(自然科学版),2015,2015(2):58-66. |
| 作者姓名： | 童敏 杨乐 黄民生 何岩 曹承进 |
| 作者单位： | 1. 华东师范大学 生态与环境科学学院，上海200062； 2. 上海宝钢新型建材科技有限公司，上海201900 |
| 基金项目： | 国家自然科学基金，中央高校基本科研业务费专项资金资助;上海市优秀学科带头人计划资助项目，上海市科委重大项目 |
| 摘 要： | 以温州市牛桥底河为研究对象,对河道疏浚前、中、后水体中理化指标、重金属含量及生物毒性进行跟踪分析.结果表明,牛桥底河底泥疏浚显著降低了水中的CODCr浓度,提高了DO含量和透明度.疏浚工程实施后,水中NH+4-N、TN、TP及重金属含量呈现"先升高,后降低"的变化趋势.疏浚不同阶段牛桥底河水样对发光细菌和胚胎的生物毒性先增强后逐渐减弱,总体上,疏浚有助于减轻水样的生物毒性.相关性分析表明水样的生物毒性与TN相关性显著,与重金属相关性不大. |
| 关 键 词： | 疏浚 牛桥底河 水环境质量 重金属 生物毒性 |
| 收稿时间： | 2014-07-29 |
Impact of dredging on water quality of Niuqiaodi River in Wenzhou |
|
| TONG Min,YANG Le,HUANG Min-sheng,HE Yan,CAO Chen-jing.Impact of dredging on water quality of Niuqiaodi River in Wenzhou[J].Journal of East China Normal University(Natural Science),2015,2015(2):58-66. | |
| Authors: | TONG Min YANG Le HUANG Min-sheng HE Yan CAO Chen-jing |
| Institution: | 1. School of Ecologial and Environmental Sciences, East China Normal University, Shanghai200062, China; 2. Shanghai Baosteel New Building Materials Technology Co.Ltd, Shanghai201900, China |
| Abstract: | The physicochemical factors, heavy metals and biological toxicity in water sample before, during and after dredging of Niuqiaodi River in Wenzhou were investigated. The result showed that after the sediment dredging of Niuqiaodi River, the CODCr concentration in water sample was significantly reduced, while the DO content and transparency were enhanced. The contents of NH+4-N, TN, TP and heavy metals in water sample were firstly increased and then decreased. Both the Luminescent bacteria and Xenopus tropicalis embryos tests indicated the toxicity of water sample firstly weakened, then enhanced in different stages of dredging. Generally speaking, sediment dredging was helpful to alleviate the toxicity of water sample. The correlation analysis showed the toxicity of water sample was significantly related to TN content and had little relationship with heavy metals. |
| Keywords: | dredging Niuqiaodi River water quality heavy metals toxicity |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《华东师范大学学报(自然科学版)》浏览原始摘要信息 | |
| 点击此处可从《华东师范大学学报(自然科学版)》下载免费的PDF全文 | |