| 丹江口水库调水前后表层沉积物营养盐和重金属时空变化 |
| |
| 引用本文： | 李冰,王亚,郑钊,许信,辛英督,黄进,郭诗君,毕升阁,胡兰群,陈兆进,李玉英.丹江口水库调水前后表层沉积物营养盐和重金属时空变化[J].环境科学,2018,39(8):3591-3600. |
| |
| 作者姓名： | 李冰 王亚 郑钊 许信 辛英督 黄进 郭诗君 毕升阁 胡兰群 陈兆进 李玉英 |
| |
| 作者单位： | 南阳师范学院农业工程学院南水北调中线水源区水安全河南省协同创新中心河南省南水北调中线水源区生态安全重点实验室;南水北调中线渠首环境监测应急中心;镇平县环境保护局 |
| |
| 基金项目： | 国家重点研发计划项目（2016YFC0402204，2016YFC0402207）；国家水体污染控制与治理科技重大专项（2017ZX07108）；国家自然科学基金项目（U1704124，231400367，41601332）；河南省重点科技攻关项目（2016151，17454，18210231021）；河南省教育厅重点项目（16A210012） |
| |
| 摘 要： | 旨在探明中线工程调水前后(2011~2016年)丹江口水库表层沉积物中营养盐和重金属的时空分布特征和环境风险,对丹江口水库5个典型生态位点表层沉积物中p H值、有机质(OM)、总磷(TP)、总氮(TN)及铬(Cr)、锰(Mn)、铜(Cu)、锌(Zn)、镉(Cd)和铅(Pb)这6种金属元素的含量及时空变化特征进行研究,同时采用加拿大淡水水生环境沉积物质量指导值(CCME)为标准来进行潜在生态风险评价.结果表明,丹江口水库表层沉积物中OM、TP和TN含量分别为25.85、0.57和1.34 g·kg~(-1);Cr、Mn、Cu、Zn、Cd和Pb这6种重金属的含量分别为57.96、521.78、13.91、195.74、0.37和12.92 mg·kg~(-1),6种重金属的含量除Zn和Cd处于土壤环境质量二级标准,其他重金属元素含量均低于土壤环境质量一级标准.TN、Mn和Zn在调水后呈上升趋势,TP及其余重金属元素在调水后呈下降趋势.除p H值外,丹江口水库表层沉积物营养盐和所测重金属含量在生态空间上分布差异均达到极显著水平(P0.01).沉积物中OM除与TN和Pb呈负相关外,与其他指标均呈正相关性.潜在生态风险评价结果显示,丹江口水库表层沉积物中Cd、Cu和Pb均不会对生物产生不良效应;OM、TN、Cr和Zn为低生态风险;TP介于无生态风险与低生态风险之间;但库心和黑鸡嘴点位Cr、Zn和TN在部分时间有较高生态风险,需引起重视.
|
| 关 键 词： | 丹江口水库 表层沉积物 营养盐 重金属 生态风险评估 |
| 收稿时间： | 2018/1/1 0:00:00 |
| 修稿时间： | 2018/2/23 0:00:00 |
Temporal and Spatial Changes in Sediment Nutrients and Heavy Metals of the Danjiangkou Reservoir Before and After Water Division of the Mid-route Project |
| |
| LI Bing,WANG Y,ZHENG Zhao,XU Xin,XIN Ying-du,HUANG Jin,GUO Shi-jun,BI Sheng-ge,HU Lan-qun,CHEN Zhao-jin and LI Yu-ying.Temporal and Spatial Changes in Sediment Nutrients and Heavy Metals of the Danjiangkou Reservoir Before and After Water Division of the Mid-route Project[J].Chinese Journal of Environmental Science,2018,39(8):3591-3600. |
| |
| Authors: | LI Bing WANG Y ZHENG Zhao XU Xin XIN Ying-du HUANG Jin GUO Shi-jun BI Sheng-ge HU Lan-qun CHEN Zhao-jin and LI Yu-ying |
| |
| Institution: | Key Laboratory of Ecological Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, Collaborative Innovation Center of Water Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China;Emergency Centre for Environmental Monitoring of Mid-route Project of South-North Water Diversion, Taocha 474475, China,Environmental Protection Bureau of Zhenping County, Zhenping 474250, China,Emergency Centre for Environmental Monitoring of Mid-route Project of South-North Water Diversion, Taocha 474475, China,Emergency Centre for Environmental Monitoring of Mid-route Project of South-North Water Diversion, Taocha 474475, China,Emergency Centre for Environmental Monitoring of Mid-route Project of South-North Water Diversion, Taocha 474475, China,Emergency Centre for Environmental Monitoring of Mid-route Project of South-North Water Diversion, Taocha 474475, China,Key Laboratory of Ecological Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, Collaborative Innovation Center of Water Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China,Key Laboratory of Ecological Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, Collaborative Innovation Center of Water Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China,Emergency Centre for Environmental Monitoring of Mid-route Project of South-North Water Diversion, Taocha 474475, China,Key Laboratory of Ecological Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, Collaborative Innovation Center of Water Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China and Key Laboratory of Ecological Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, Collaborative Innovation Center of Water Security for Water Source Region of Mid-route Project of South-North Water Diversion of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China |
| |
| Abstract: | |
| |
| Keywords: | Danjiangkou Reservoir surface sediment nutrients heavy metal ecological risk assessment |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
