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Different response of bacterial community to the changes of nutrients and pollutants in sediments from an urbanriver network

Fang Zhang, Hao Zhang, Ying Yuan, Dun Liu, Chenyu Zhu, Di Zheng, Guanghe Li, Yuquan Wei, Dan Sun

《环境科学与工程前沿（英文）》 2020年 第14卷 第2期 doi: 10.1007/s11783-019-1207-3

摘要： • Bacterial community varied spatially in sediments from the urban river network. • Key environmental factors shaping bacterial community were detected by RDA. • Bacterial co-occurrence networks changed at different levels of nutrient and metal. • Potential indicator species were selected to predict pollution risk in sediment. Microbial communities in sediment are an important indicator linking to environmental pollution in urban river systems. However, how the diversity and structure of bacterial communities in sediments from an urban river network respond to different environmental factors has not been well studied. The goal of this study was to understand the patterns of bacterial communities in sediments from a highly dense urbanized river network in the lower Yangtze River Delta by Illumina MiSeq sequencing. The correlations between bacterial communities, the environmental gradient and geographical distance were analyzed by redundancy analysis (RDA) and network methods. The diversity and richness of bacterial community in sediments increased from upstream to downstream consistently with the accumulation of nutrient in the urban river network. Bacterial community composition and structure showed obvious spatial changes, leading to two distinct groups, which were significantly related to the characteristics of nutrient and heavy metal in sediments. Humic substance, available nitrogen, available phosphorus, Zn, Cu, Hg and As were selected as the key environmental factors shaping the bacterial community in sediments based on RDA. The co-occurrence patterns of bacterial networks showed that positive interaction between bacterial communities increased but the connectivity among bacterial genera and stability of sediment ecosystem reduced under a higher content of nutrient and heavy metal in average. The sensitive and ubiquitous taxa with an overproportional response to key environmental factors were detected as indicator species, which provided a novel method for the prediction of the pollution risk of sediment in an urban river network.

关键词： Sediment     Urban river network     Bacterial community     Network analysis     Indicator species    

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Distribution of phytoplankton community and its influence factors in an urban river network, East China

Ling Sun, Hui Wang, Yuanqing Kan, Shiliang Wang

《环境科学与工程前沿（英文）》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1062-7

摘要：

Effects of urban river conditions on phytoplankton community were investigated.

Nitrate utilization and hydrodynamic condition affected phytoplankton distribution.

A winter bloom was induced by abundant ammonia, total phosphorus and organic matters.

The diatoms and euglenoids dominated in an urban beheaded river ecosystem.

关键词： Phytoplankton composition     Spatiotemporal distribution     Functional groups     Nitrate nitrogen     Winter bloom    

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Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

《环境科学与工程前沿（英文）》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0943-5

摘要： The water quality in a typical urban river segment originated with reclaimed water in Beijing was monitored for two years to investigate the evolution of water quality along the river, and statistical analysis was applied to determine factors influencing water quality of such river recharged by reclaimed water. It was found that no significant change in pollutant concentrations (including COD, NH -N, TN and TP) was observed during this time, and their average values were close to those of the original reclaimed water. However, turbidity and algal contents fluctuated temporally in the direction of river flow. Statistical analysis showed that turbidity was strongly positively correlated with algal contents for flow rate<0.1 m·s , whereas it was strongly positively correlated with both algal contents and TOC for flow rate>0.1 m·s . It was observed that diatom was the absolute predominant phyla with as the major species. In terms of algal bloom control, the specific growth rate of algae was strongly correlated to temperature, and was influenced by flow rate as well. Compared with two other rivers originated with reclaimed water and one originated with natural water, the Shannon–Wiener index in the objective river was the lowest, with values between 0.7 and 1.6, indicating a high risk for algal bloom. Statistics showed that Shannon–Wiener index was strongly negatively correlated to nutrient salts and cations.

关键词： Reclaimed water     Urban river     Turbidity     Algae     Flow rate    

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Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

《环境科学与工程前沿（英文）》 2011年 第5卷 第2期   页码 255-265 doi: 10.1007/s11783-010-0279-x

摘要： The water quality pollution and ecological deterioration in peri-urban rivers are usually serious under rapid urbanization and economic growth. In the study, a typical peri-urban river, Nansha River, was selected as a case study to discuss the scheme of peri-urban river rehabilitation. Located in the north part of the Beijing central region, the Nansha River watershed has been designated as an ecologically friendly garden-style area with high-tech industry parks and upscale residential zones. However, the Nansha River is currently seriously contaminated by urban and rural pollutants from both nonpoint sources (NPS) and point sources (PS). In this study, the pollutant loads from point sources and nonpoint sources in the Nansha River watershed were first assessed. A coupled model, derived from the Environmental Fluid Dynamics Code and Water Quality Analysis Simulation Program, was developed to simulate the hydrodynamics and water quality in the Nansha River. According to the characteristics of the typical peri-urban river, three different PS and NPS control scenarios were designed and examined by modeling analyses. Based on the results of the scenario analysis, a river rehabilitation scheme was recommended for implementation.

关键词： peri-urban river     coupled hydrodynamic-water quality modeling     scenario analysis     river rehabilitation    

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Evaluation of aquatic rehabilitation technologies for polluted urban rivers and the case study of the

Haifeng JIA, Nan DONG, Hongtao MA,

《环境科学与工程前沿（英文）》 2010年 第4卷 第2期   页码 213-220 doi: 10.1007/s11783-010-0023-6

摘要： An index system for evaluation of technologies for urban river rehabilitation was proposed and discussed. The index system includes indicators of cost, resources, environmental improvement, and social effects. The calculation method for an objective value of each index based on its attributes and weights was presented. The Foshan Channel, which is a seriously polluted, black and malodorous urban river in Foshan City, China, was selected as a case study. The values of the attributes and the weights of the indices for the Foshan Channel were determined. The technologies for the rehabilitation of the Foshan Channel were evaluated based on this index system. Finally, a rehabilitation scheme for the Foshan Channel was proposed.

关键词： river rehabilitation     urban rivers     river pollution     multi-objective analysis     the Foshan Channel    

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Occurrence, distribution and risk assessment of abused drugs and their metabolites in a typical urbanriver in north China

Peng Hu, Changsheng Guo, Yan Zhang, Jiapei Lv, Yuan Zhang, Jian Xu

《环境科学与工程前沿（英文）》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1140-5

摘要：

We developed a method for determining 11 abused drugs in water and sediment.

METH and EPH were the dominant drugs in water and sediment in Beiyunhe River.

Abuse drugs in Beiyunhe River were mainly from hospitals and sewage effluents.

Abused drugs in the water would not impair the aquatic ecosystem biologically.

关键词： Drugs of abuse     Occurrence     Distribution     Urban river     Environmental risk    

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Erratum to: Theoretical foundation of a decision network for urban development

Shih-kung Lai, Jhong-you Huang,lai@tongji.edu.cn,jhongyouhuang@gmail.com

《信息与电子工程前沿（英文）》 2017年 第18卷 第10期   页码 1677-1677 doi: 10.1631/FITEE.15e0000

摘要： Erratum to: , 2017 18(8):1033-1039. doi:

关键词： Decision making     Linked decisions     Decision network     Planning    

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典型城市群的市域生态文明水平评估研究

杨娇,张林波,罗上华,解钰茜,李芬,

《中国工程科学》 2017年 第19卷 第4期   页码 54-59 doi: 10.15302/J-SSCAE-2017.04.009

摘要：

为评估和反映我国生态文明发展水平，结合联合国2030年可持续发展议程和国家生态文明建设目标，构建了以环境质量改善为核心的生态文明发展指标体系。基于市域评估单元，采用双目标渐进赋分，评估了京津冀、长三角和珠三角三个城市群的生态文明发展水平。结果表明，珠三角城市群生态文明发展水平最高，均值为69.95；其次是长三角城市群，均值为67.61，最后是京津冀城市群，均值为59.04。三个城市群生态文明发展水平的短板都体现在绿色环境领域。城市生态文明发展水平评估，揭示其生态文明建设的短板，为城市提升生态文明发展水平指明了方向。

关键词： 生态文明发展水平     京津冀城市群     长三角城市群     珠三角城市群     双目标渐进法    

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Diversity and vertical distributions of sediment bacteria in an urban river contaminated by nutrients

Xunan YANG, Shan HUANG, Qunhe WU, Renduo ZHANG, Guangli LIU

《环境科学与工程前沿（英文）》 2013年 第7卷 第6期   页码 851-859 doi: 10.1007/s11783-013-0569-1

摘要： The aim of this study was to investigate the benthic bacterial communities in different depths of an urban river sediment accumulated with high concentrations of nutrients and metals. Vertical distributions of bacterial operational taxonomic units (OTUs) and chemical parameters (nutrients: , , dissolved organic carbon, and acid volatile sulfur; metals: Fe, Zn, and Cu) were characterized in 30 cm sediment cores. The bacterial OTUs were measured using the terminal restriction fragment length polymorphism analysis. Biodiversity indexes and multivariate statistical analyses were used to characterize the spatial distributions of microbial diversity in response to the environmental parameters. Results showed that concentrations of the nutrients and metals in this river sediment were higher than those in similar studies. Furthermore, high microbial richness and diversity appeared in the sediment. The diversity did not vary obviously in the whole sediment profile. The change of the diversity indexes and the affiliations of the OTUs showed that the top layer had different bacterial community structure from deeper layers due to the hydrological disturbance and redox change in the surface sediment. The dominant bacterial OTUs ubiquitously existed in the deeper sediment layers (5–27 cm) corresponding to the distributions of the nutrients and metals. With much higher diversity than the dominant OTUs, the minor bacterial assemblages varied with depths, which might be affected by the sedimentation process and the environmental competition pressure.

关键词： heavy metals     nutrients     sediment profile     terminal restriction fragment length polymorphism    

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Characterization of submicron aerosols in the urban outflow of the central Pearl River Delta region of

Zhaoheng GONG, Zijuan LAN, Lian XUE, Liwu ZENG, Lingyan HE, Xiaofeng HUANG

《环境科学与工程前沿（英文）》 2012年 第6卷 第5期   页码 725-733 doi: 10.1007/s11783-012-0441-8

摘要： Submicron aerosol particles (with aerodynamic diameters less than 1 μm, PM ) were sampled and measured in Heshan, an urban outflow site of Guangzhou megacity in Pearl River Delta in South China, using an Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) in November 2010 during 2010 Guangzhou Asian Games. The mean PM mass concentration measured was 47.9±17.0 μg·m during the campaign, with organic aerosol (OA) and sulfate being the two dominant species, accounting for 36.3% and 20.9% of the total mass, respectively, followed by black carbon (17.1%, measured by an aethalometer), nitrate (12.9%), ammonium (9.6%) and chloride (3.1%). The average size distributions of the species (except black carbon) were dominated by an accumulation mode peaking at ~550 nm. Calculations based on high-resolution organic mass spectrum showed that, C, H, O and N on average contributed 58.1%, 7.3%, 30.7%, and 3.9% to the total organic mass, respectively. The average ratio of organic mass over organic carbon mass (OM/OC) was 1.73±0.08. Four components of OA were identified by the Positive Matrix Factorization (PMF) analysis, including a hydrocarbon-like (HOA), a biomass burning (BBOA) and two oxygenated (SV-OOA and LV-OOA) organic aerosol components, which on average accounted for 18.0%, 14.3%, 28.8% and 38.9% of the total organic mass, respectively.

关键词： organic aerosol     high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS)     positive matrix factorization    

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A hybrid Wavelet-CNN-LSTM deep learning model for short-term urban water demand forecasting

《环境科学与工程前沿（英文）》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1622-3

摘要：

● A novel deep learning framework for short-term water demand forecasting.

关键词： Short-term water demand forecasting     Long-short term memory neural network     Convolutional Neural Network     Wavelet multi-resolution analysis     Data-driven models    

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城市渠化河流生态流量核算方法 Article

尹心安, 杨志峰, 张恩泽, 徐志豪, 蔡宴朋, 杨薇

《工程（英文）》 2018年 第4卷 第5期   页码 590-596 doi: 10.1016/j.eng.2018.08.006

摘要：

城市河流生态流量核算对于水资源规划和河流保护非常重要。以往城市河流生态流量核算方法侧重于满足物种生境维持和污染物稀释的需求。然而，城市河流中很少存在需保护的物种，同时大量城市河流为混凝土化渠道，无需考虑物种生境维持需求；另外，随着城市水污染防治工程的建设，一些城市河流的污染问题可得到有效的控制。对于这类城市渠化河流，如果沿用以往的生态流量核算方法，即从物种生境和污染物稀释的角度来确定生态流量，生态流量的核算结果将很小，潜在地降低了未来水资源分配和管理中对河流生态保护的重视程度。为了更有效地核算渠化城市河流的生态流量，除了满足污染物稀释的需求外，本研究依据河流纵向水文连通程度的不同（高、中、低），提出了3 种情景下的生态流量核算方法。在高水文连通情景下，生态流量旨在维持一定的水流流速，以确保河流的自净能力并减缓藻类的繁殖；在中水文连通情景下，生态流量旨在维持城市河流中被拦水堰分割河段之间的纵向水力连通性，以确保河流中的物质、能量和信息间的交换；在低水文连通情景下，设计的生态流量将进一步减小，改为间歇地向城市河流补水，旨在满足被拦水堰分割河段间的间歇性连通。本研究以十五里河为研究案对象，研究结果表明新建立的生态流量核算方法可以提供更加精确、符合实际的生态流量核算结果，并为生态补水工程的建设和管理提供有效的指导。

关键词： 生态流量     城市河流     渠化河流     河流修复    

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面向城市河流生态流量保障的堰高确定方法 Article

孙媛媛, 尹心安, 毛显强, 张恩泽, 赵彦伟

《工程（英文）》 2021年 第7卷 第2期   页码 187-194 doi: 10.1016/j.eng.2020.05.022

摘要：

城市河流生态流量不足的现象普遍存在。除各用水部门之间竞争加剧以及生态流量保障措施执行不彻底等已知原因外，堰高设计中未明确考虑生态流量，是导致生态流量无法满足的另一个重要原因。本研究建议将生态流量的保障措施从供水阶段扩展到河道的设计阶段。为了更有效地满足城市河流的生态流量，本文构建了一个新的堰高确定框架。有别于传统框架中堰高设计重点关注防洪和蓄水要求，并以洪水入流作为设计依据，新的框架中增加了对生态流量以及河流流速维持的考虑，将城市河流中能为生态流量保障提供的实际流量作为入流。本研究以典型的城市渠化河流——合肥市十五里河为案例，对新框架的有效性进行实证研究。研究结果表明，旧框架会导致设计的堰高过高，无法有效满足生态流量保障的要求，而新框架可确定更为合理的堰高，从而改善了生态流量的保障效果。

关键词： 生态流量     城市河流     河流生态修复    

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太湖流域平原水网区面源污染现状与控制对策

秦忠,耿清蔚,臧贵敏

《中国工程科学》 2010年 第12卷 第6期   页码 113-116

摘要：

通过对2005年与2000年入河污染物总量的分析表明，点源在入河污染物总量中的占比逐年下降，面源的占比迅速增加，尤其是TP（总磷） 入河量已经超过点源；面源污染呈“总量持平，结构调整”态势； 面源污染物总量构成中，农村居民生活位居第一，其次是水产养殖、水田径流等。在面源污染成因分析基础上，相应提出了太湖流域平原水网区面源污染控制的对策建议。

关键词： 太湖流域     平原水网     面源污染     控制    

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Determination of the principal factors of river water quality through cluster analysis method and its

Liang GUO, Ying ZHAO, Peng WANG

《环境科学与工程前沿（英文）》 2012年 第6卷 第2期   页码 238-245 doi: 10.1007/s11783-011-0382-7

摘要： In this paper, an artificial neural network model was built to predict the Chemical Oxygen Demand (COD ) measured by permanganate index in Songhua River. To enhance the prediction accuracy, principal factors were determined through the analysis of the weight relation between influencing factors and forecasting object using cluster analysis method, which optimized the topological structure of the prediction model input items of the artificial neural network. It was shown that application of the principal factors in water quality prediction model can improve its forecasting skill significantly through the comparison between results of prediction by artificial neural network and the measurements of the COD . This methodology is also applicable to various water quality prediction targets of other water bodies and it is valuable for theoretical study and practical application.

关键词： water quality forecast     principal factor     cluster analysis method     artificial neural network    

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标题 作者 时间 类型 操作

Different response of bacterial community to the changes of nutrients and pollutants in sediments from an urbanriver network

Fang Zhang, Hao Zhang, Ying Yuan, Dun Liu, Chenyu Zhu, Di Zheng, Guanghe Li, Yuquan Wei, Dan Sun

期刊论文

Distribution of phytoplankton community and its influence factors in an urban river network, East China

Ling Sun, Hui Wang, Yuanqing Kan, Shiliang Wang

期刊论文

Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

期刊论文

Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

期刊论文

Evaluation of aquatic rehabilitation technologies for polluted urban rivers and the case study of the

Haifeng JIA, Nan DONG, Hongtao MA,

期刊论文

Occurrence, distribution and risk assessment of abused drugs and their metabolites in a typical urbanriver in north China

Peng Hu, Changsheng Guo, Yan Zhang, Jiapei Lv, Yuan Zhang, Jian Xu

期刊论文

Erratum to: Theoretical foundation of a decision network for urban development

Shih-kung Lai, Jhong-you Huang,lai@tongji.edu.cn,jhongyouhuang@gmail.com

期刊论文

典型城市群的市域生态文明水平评估研究

杨娇,张林波,罗上华,解钰茜,李芬,

期刊论文

Diversity and vertical distributions of sediment bacteria in an urban river contaminated by nutrients

Xunan YANG, Shan HUANG, Qunhe WU, Renduo ZHANG, Guangli LIU

期刊论文

Characterization of submicron aerosols in the urban outflow of the central Pearl River Delta region of

Zhaoheng GONG, Zijuan LAN, Lian XUE, Liwu ZENG, Lingyan HE, Xiaofeng HUANG

期刊论文

A hybrid Wavelet-CNN-LSTM deep learning model for short-term urban water demand forecasting

期刊论文

城市渠化河流生态流量核算方法

尹心安, 杨志峰, 张恩泽, 徐志豪, 蔡宴朋, 杨薇

期刊论文

面向城市河流生态流量保障的堰高确定方法

孙媛媛, 尹心安, 毛显强, 张恩泽, 赵彦伟

期刊论文

太湖流域平原水网区面源污染现状与控制对策

秦忠,耿清蔚,臧贵敏

期刊论文

Determination of the principal factors of river water quality through cluster analysis method and its

Liang GUO, Ying ZHAO, Peng WANG

期刊论文