...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Monitoring and Assessment >Using multivariate techniques to assess the effects of urbanization on surface water quality: a case study in the Liangjiang New Area, China
【24h】

Using multivariate techniques to assess the effects of urbanization on surface water quality: a case study in the Liangjiang New Area, China

机译：使用多元技术评估城市化对地表水水质的影响：以中国两江新区为例

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Rapid urbanization in China has been causing dramatic deterioration in the water quality of rivers and threatening aquatic ecosystem health. In this paper, multivariate techniques, such as factor analysis (FA) and cluster analysis (CA), were applied to analyze the water quality datasets for 19 rivers in Liangjiang New Area (LJNA), China, collected in April (dry season) and September (wet season) of 2014 and 2015. In most sampling rivers, total phosphorus, total nitrogen, and fecal coliform exceeded the Class V guideline (GB3838-2002), which could thereby threaten the water quality in Yangtze and Jialing Rivers. FA clearly identified the five groups of water quality variables, which explain majority of the experimental data. Nutritious pollution, seasonal changes, and construction activities were three key factors influencing rivers' water quality in LJNA. CA grouped 19 sampling sites into two clusters, which located at sub-catchments with high-and low-level urbanization, respectively. One-way ANOVA showed the nutrients (total phosphorus, soluble reactive phosphorus, total nitrogen, ammonium nitrogen, and nitrite), fecal coliform, and conductivity in cluster 1 were significantly greater than in cluster 2. Thus, catchment urbanization degraded rivers' water quality in Liangjiang New Area. Identifying effective buffer zones at riparian scale to weaken the negative impacts of catchment urbanization was recommended.
机译：中国快速的城市化进程已导致河流水质急剧恶化，并威胁着水生生态系统的健康。本文采用多元分析技术，如因子分析（FA）和聚类分析（CA），分析了两江新区（LJNA）于4月（旱季）采集的19条河流的水质数据。 2014年和2015年的9月（湿季）。在大多数采样河流中，总磷，总氮和粪便大肠菌群均超过了V类标准（GB3838-2002），可能因此威胁长江和嘉陵江的水质。 FA明确确定了五组水质变量，这些变量解释了大多数实验数据。营养污染，季节变化和建筑活动是影响LJNA河流水质的三个关键因素。 CA将19个采样点分为两个集群，分别位于城市化程度较高和较低的子集水区。单向方差分析表明，第1组的养分（总磷，可溶性活性磷，总氮，铵态氮和亚硝酸盐），粪便大肠菌群和电导率显着高于第2组。因此，集水区城市化降低了河流的水质在两江新区。建议在河岸范围内确定有效的缓冲区，以减弱集水区城市化的负面影响。

著录项

  • 来源
    《Environmental Monitoring and Assessment》 |2017年第4期|174.1-174.11|共11页
  • 作者

    Luo Kun; Hu Xuebin; He Qiang; Wu Zhengsong; Cheng Hao; Hu Zhenlong; Mazumder Asit;

  • 作者单位

    Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China|Univ Victoria, POB 3020 STN CSC, Victoria, BC V8W 3N5, Canada;

    Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China;

    Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China;

    Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China;

    Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China;

    Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China;

    Univ Victoria, POB 3020 STN CSC, Victoria, BC V8W 3N5, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Urbanization; Factor analysis; Cluster analysis; Water quality;

    机译：城市化;因子分析;聚类分析;水质;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号