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Multi-scale evaluation of river health in Liao River Basin, China

Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG

《环境科学与工程前沿(英文)》 2011年 第5卷 第2期   页码 227-235 doi: 10.1007/s11783-010-0219-9

摘要: Previous studies on river health evaluation mainly focused on characterizations at a river-corridor scale and ignored the complex interactions between the river ecosystem and other components of the river basin. Based on the consideration of the interactions among rivers, associated river basin and habitats, an assessment framework with multi-scale indicators was developed. An index system divided among these three scales to characterize the health of river ecosystems in China’s Liao River Basin was established. Set pair analysis was applied to integrate the multi-scale indicators and determine the health classes. The evaluation results indicated that the rivers in the western and eastern zones of the Liao River were classified as sick, and rivers in the main stream of the Liao and Huntai rivers were classified as unhealthy. An excessive level of disturbances, such as large pollution loads and dense construction of water conservation projects within the river basin, were the main causes of the river health deterioration.

关键词: multi-scale characterization     river health evaluation     Liao River Basin     set pair analysis    

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

《环境科学与工程前沿(英文)》 2013年 第7卷 第6期   页码 875-885 doi: 10.1007/s11783-013-0568-2

摘要: Maintenance of the ecosystem health of a river is of great importance for local sustainable development. On the basis of both qualitative and quantitative analysis of the influence of natural variations and human activities on the ecosystem function of the Weihe River, the changes in major factors affecting its ecosystem health are determined, which include: 1) Deficiency of environment flow: since the 1960s, the incoming stream flow shows an obvious decreasing tendency. Even in the low flow period, 80% of the water in the stream is impounded by dams for agriculture irrigation in the Baoji district. As a result, the water flow maintained in the stream for environmental use is very limited. 2) Deterioration of water quality: the concentrations of typical pollutants like Chemical Oxygen Demand (COD) and NH -N are higher than their maximum values of the Chinese environmental quality standard. Very few fish species can survive in the River. 3) Deformation of water channels: the continuous channel sedimentation has resulted in the decrease in stream gradient, shrinkage of riverbed and the decline in the capability for flood discharge. 4) Loss of riparian vegetation: most riparian land has been occupied by urban construction activities, which have caused the loss of riparian vegetation and biodiversity and further weakened flood control and water purification functions.

关键词: influencing factors     ecosystem health     ecological and environmental functions     the Weihe River     Shaanxi Province    

辽河流域河流健康综合评价方法研究

张远,赵瑞,渠晓东

《中国工程科学》 2013年 第15卷 第3期   页码 11-18

摘要:

根据2009年5月太子河流域水生生物(藻类、鱼类和大型底栖动物)调查结果,以藻类、鱼类、大型底栖动物、基本水质和营养盐作为候选参数,采用总体线性回归模型和相关性分析法对它们进行筛选,构建了多指标河流健康综合评价指数,对辽河流域河流健康进行了评估。结果表明,辽河流域河流健康受损较重,未达到“良”等级的样点有146个,所占比例高达83 %,主要分布在浑河、东辽河和西辽河流域,这些流域受到来自城市、工业及农业面源污染较大;“良”等级的样点只有30个,主要分布在太子河流域上游地区,这些样点受到人类干扰较少;整个流域鱼类类群存在显著退化趋势,其中西辽河的鱼类类群衰退现象最明显。

关键词: 综合评价法     河流健康     大型底栖动物     鱼类     着生藻类    

Effective interventions on health effects of Chinese rural elderly under heat exposure

《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-022-1545-4

摘要:

● Education and subsidy were effective interventions during short-term heat exposure.

关键词: High temperature     Health effect     Comprehensive evaluation     Intervention     Rural elderly    

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 311-317 doi: 10.1007/s11783-008-0047-3

摘要: Ecosystem health assessment is one of the most important issues in regional ecological quality and safety studies. It also has a great significance to ecological conservation and regional development. This study focused on assessing the health status of forest, agriculture and urban ecosystems in the southwestern Beijing, China, including the Fangshan and Fengtai Districts. Based on field surveys and data collection, an assessment index system containing the vigor, organization and resilience factors was developed to measure the ecosystem health. Each index was scored from 1 to 5, representing five levels that contribute to the whole ecosystem health. The analytic hierarchy process (AHP) method was used to measure the weights of each index and three factors, and thus an overall score for a certain ecosystem was calculated. The results show that the forest ecosystem in the Fangshan District had higher health value than the Fengtai District, while the urban ecosystem had a slightly lower value in the Fangshan District than the Fengtai District. Both districts show lower resilience values in forest and urban ecosystems. Maintaining the ecosystem health will definitely benefit the long-term development of two districts. This study suggested that an approach for assessing the regional ecosystem health could be further developed to address spatial and synergy relationships between ecosystems and the three health factors.

关键词: hierarchy process     regional ecosystem     synergy     agriculture     resilience    

New approaches for evaluation of soil health, sensitivity and resistance to degradation

Yakov KUZYAKOV, Anna GUNINA, Kazem ZAMANIAN, Jing TIAN, Yu LUO, Xingliang XU, Anna YUDINA, Humberto APONTE, Hattan ALHARBI, Lilit OVSEPYAN, Irina KURGANOVA, Tida GE, Thomas GUILLAUME

《农业科学与工程前沿(英文)》 2020年 第7卷 第3期   页码 282-288 doi: 10.15302/J-FASE-2020338

摘要:

Assessment of soil health requires complex evaluation of properties and functions responsible for a broad range of ecosystem services. Numerous soil quality indices (SQI) have been suggested for the evaluation of specific groups of soil functions, but comparison of various SQI is impossible because they are based on a combination of specific soil properties. To avoid this problem, we suggest an SQI-area approach based on the comparison of the areas on a radar diagram of a combination of chemical, biological and physical properties. The new approach is independent of the SQI principle and allows rapid and simple comparison of parameter groups and soils. Another approach analyzing the resistance and sensitivity of properties to degradation is suggested for a detailed evaluation of soil health. The resistance and sensitivity of soil properties are determined through comparison with the decrease of soil organic carbon (SOC) as a universal parameter responsible for many functions. The SQI-area and resistance/sensitivity approaches were tested based on the recovery of Phaeozems and Chernozems chronosequences after the abandonment of agricultural soils. Both the SQI-area and the resistance/sensitivity approaches are useful for basic and applied research, and for decision-makers to evaluate land-use practices and measure the degree of soil degradation.

关键词: ecosystem stability     land quality     land degradation     soil health     soil management     soil organic matter    

Evaluation of potential failure of rock slope at the left abutment of Jinsha River Bridge by model test

Zhiming ZHAO, Xihua WANG

《结构与土木工程前沿(英文)》 2013年 第7卷 第3期   页码 332-340 doi: 10.1007/s11709-013-0206-x

摘要: Jinsha River Bridge is located on Tiger Leaping Gorge town, China. The left bank slope composes of moderately thick layer of slate overlain by schistose basalt, and where rocks are controlled by two sets of joint planes. To evaluate the stability of the rock slope under bridge foundation, model test and calculation model based on the geological parameters and the slope stability was simulated and analyzed using Universal Distinct Element Code (UDEC) and Finite Element Mehod (FEM). According to model test, failure mainly initiated at the toe with shear movement along the joint planes, eventually resulting in the sliding along the slope surface and formation of tension crack at the crest of the model. This result coincide with the UDEC model, which shows that slope surface will produce loosening damage and slipping expected along the joint planes under different loading conditions. Moreover, the result of FEM analysis indicates that the rock mass under the main pier has potential shear failure region. So, the bridge foundation should be strengthened to prevent the slope failure under external forces.

关键词: slope stability     strength properties     model test     numerical analysis    

川江载货汽车滚装运输贡献的评估与发展政策

许茂增,吴旻

《中国工程科学》 2008年 第10卷 第2期   页码 31-34

摘要:

介绍了川江地区的运输环境,阐述了滚装运输产生的行业背景、发展历程和现 状;提出以经济、社会、运输、节能、废气排放的指标,评价川江载货汽车滚装运输对区域经济 社会发展的贡献,建立了运费节约和能源节约指标的计算模型,并以2005年的统计数据和专 项调查数据为基础进行了实际评价。结果表明,川江载货汽车滚装运输兼具降低社会运输成 本、节能、环保与生态价值,有助于长江流域经济社会的可持续发展;分析了滚装运输发展 的机遇及面临的挑战,提出了促进滚装运输发展的政策和措施。

关键词: 川江     滚装运输     评价指标     计算模型     发展政策    

Post-evaluation of a water pollution control plan: methodology and case study

Lin ZENG,Xin DONG,Siyu ZENG,Tianzhu ZHANG,Jing LI,Jining CHEN

《环境科学与工程前沿(英文)》 2015年 第9卷 第4期   页码 712-724 doi: 10.1007/s11783-015-0773-2

摘要: China has developed more than 20 water pollution control plans for river basins (RBWPs) since 1996. However, the implementation has generally lagged. This paper proposes a three-step, post-evaluation methodology to analyze the implementation result of a RBWP and its influential factors. First, a multi-attribute evaluation method based on an index system is established to score the enforcement results of a RBWP. Indicators measure how well a RBWP has achieved its objectives, which include water quality compliance, pollution load control, project construction, financial inputs, and related management requirements. Second, an interpretive structural model is used to detect the significant factors that affect RBWP implementation. This model can effectively analyze the cause-effect chain and hierarchical relationship among variables. Five groups of factors were identified, namely, plan preparation, water resource endowment, policy, institution, and management. Both qualitative and quantitative methods are employed in the third step to evaluate the extent to which these factors have influenced the execution result of a RBWP, including pre-post contrast, scenario analysis, and correlation analysis. This research then post-evaluated the implementation of the Huai River Basin water pollution control plans (H-RBWPs) over a period of 10 years as a case study. Results showed that the implementation of the H-RBWPs was unsatisfactory during 2001–2005, although it improved during 2006–2010. The poor execution of these plans was partially caused by the underestimation of regional economic development in combination with ineffective industrial structure adjustment policies. Therefore, this case study demonstrates the feasibility and flexibility of the proposed post-evaluation methodology.

关键词: river basin     water pollution control plan     post plan evaluation     multi-attribute comprehensive evaluation     interpretive structural model     combined qualitative/quantitative method    

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    

Comprehensive health condition assessment on partial sewers in a southern Chinese city based on fuzzy

Lili GAN, Jiane ZUO, Yajiao WANG, Thong Soon LOW, Kaijun WANG

《环境科学与工程前沿(英文)》 2014年 第8卷 第1期   页码 144-150 doi: 10.1007/s11783-013-0554-8

摘要: A self-developed sewer health assessment system using the fuzzy comprehensive evaluation and analytical hierarchy process was applied to give a comprehensive health condition evaluation on part of the local sewers in a southern Chinese city based on the sewer video data collected by a sewer inspection closed circuit television (CCTV) robot. Aside from the overall condition evaluation, the structure, function, and stability status of the sewer were also analyzed using the method. A comprehensive index was proposed to give the overall health condition of pipes with different defects, and , , and were used to quantify the defects affecting the tightness, stability, and function of the pipe, respectively. Results show that 48% of the inspected pipes were in good condition (0< <0.25), and about 33% of the sewer pipes analyzed were categorized to be at severe or urgent condition levels ( >0.5), although most of the pipes were installed only within five years. Frequent sedimentation affects the function of the sewer, and deformation and joint damage affect the structure of the sewer.

关键词: sewer     health condition assessment     analytical hierarchy process     fuzzy comprehensive evaluation     fuzzy mathematic method    

PPCPs in a drinking water treatment plant in the Yangtze River Delta of China: Occurrence, removal and

Xinshu Jiang, Yingxi Qu, Liquan Liu, Yuan He, Wenchao Li, Jun Huang, Hongwei Yang, Gang Yu

《环境科学与工程前沿(英文)》 2019年 第13卷 第2期 doi: 10.1007/s11783-019-1109-4

摘要:

• 39 PPCPs were investigated at a DWTP using the Yangtze River as its water source.

• Grab and continuous sampling were conducted for the comparison of data consistency.

• Ketoprofen & carbamazepine can be risk management indicators because of the high RQ.

关键词: PPCPs     DWTP     Human health risk assessment    

Contribution of national bioassessment approaches for assessing ecological water security: an AUSRIVAS case study

Susan J. NICHOLS, Fiona J. DYER

《环境科学与工程前沿(英文)》 2013年 第7卷 第5期   页码 669-687 doi: 10.1007/s11783-013-0556-6

摘要: River managers in Australia are managing in the face of extremes to provide security of water supply for people, production and the environment. Balancing the water requirements of people, environments and economies requires that water security is viewed holistically, not just in terms of the water available for human consumption. Common definitions of water security focus on the needs of both humans and ecosystems for purposes such as drinking, agriculture and industrial use, and to maintain ecological values. Information about achieving water security for the environment or ecological purposes can be a challenge to interpret because the watering requirements of key ecological processes or assets are not well understood, and the links between ecological and human values are often not obvious to water users. Yet the concepts surrounding river health are inherently linked to holistic concepts of water security. The measurement of aquatic biota provides a valuable tool for managers to understand progress toward achieving ecological water security objectives. This paper provides a comprehensive review of the reference condition approach to river health assessment, using the development of the Australian River Assessment System (AUSRIVAS) as a case study. We make the link between the biological assessment of river health and assessment of ecological water security, and suggest that such an approach provides a way of reporting that is relevant to the contribution made by ecosystems to water security. The reference condition approach, which is the condition representative of minimally disturbed sites organized by selected physical, chemical, and biological characteristics, is most important for assessing ecological water security objectives.

关键词: ecological water security     biological assessment     river health    

辽河流域重污染行业废水处理最佳可行技术评估方法与系统开发

向连城,宋永会,段亮,李蕊,李丛,刘雪瑜

《中国工程科学》 2013年 第15卷 第3期   页码 49-55

摘要:

辽河流域重污染行业集中,水环境污染严重。通过对辽河流域重污染行业废水处理技术的分析,针对重污染行业废水处理技术使用范围和具有明显行业特性的问题,使用模糊-灰色综合评判法、层次分析法等综合评价方法,分行业对废水处理技术进行多指标、综合性的评价研究,对废水处理技术的处理效果、减排效果及经济性进行综合评价。针对评价过程涉及数学模型复杂、计算量大,导致评价工作效率不高、难以保证精确度的问题,开发并利用计算机软件实现这一过程,设计了评价系统的指导思想、结构、评价功能等。结果表明,废水处理技术评价系统可大幅度提高评价工作的效率和精确度。

关键词: 辽河流域     行业废水处理     技术评价     软件系统    

Primary health care for all by 2020: The systematic reform of the medical and health system in China

《医学前沿(英文)》 2010年 第4卷 第1期   页码 3-7 doi: 10.1007/s11684-010-0024-7

标题 作者 时间 类型 操作

Multi-scale evaluation of river health in Liao River Basin, China

Fei XU, Yanwei ZHAO, Zhifeng YANG, Yuan ZHANG

期刊论文

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

期刊论文

辽河流域河流健康综合评价方法研究

张远,赵瑞,渠晓东

期刊论文

Effective interventions on health effects of Chinese rural elderly under heat exposure

期刊论文

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

期刊论文

New approaches for evaluation of soil health, sensitivity and resistance to degradation

Yakov KUZYAKOV, Anna GUNINA, Kazem ZAMANIAN, Jing TIAN, Yu LUO, Xingliang XU, Anna YUDINA, Humberto APONTE, Hattan ALHARBI, Lilit OVSEPYAN, Irina KURGANOVA, Tida GE, Thomas GUILLAUME

期刊论文

Evaluation of potential failure of rock slope at the left abutment of Jinsha River Bridge by model test

Zhiming ZHAO, Xihua WANG

期刊论文

川江载货汽车滚装运输贡献的评估与发展政策

许茂增,吴旻

期刊论文

Post-evaluation of a water pollution control plan: methodology and case study

Lin ZENG,Xin DONG,Siyu ZENG,Tianzhu ZHANG,Jing LI,Jining CHEN

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

Comprehensive health condition assessment on partial sewers in a southern Chinese city based on fuzzy

Lili GAN, Jiane ZUO, Yajiao WANG, Thong Soon LOW, Kaijun WANG

期刊论文

PPCPs in a drinking water treatment plant in the Yangtze River Delta of China: Occurrence, removal and

Xinshu Jiang, Yingxi Qu, Liquan Liu, Yuan He, Wenchao Li, Jun Huang, Hongwei Yang, Gang Yu

期刊论文

Contribution of national bioassessment approaches for assessing ecological water security: an AUSRIVAS case study

Susan J. NICHOLS, Fiona J. DYER

期刊论文

辽河流域重污染行业废水处理最佳可行技术评估方法与系统开发

向连城,宋永会,段亮,李蕊,李丛,刘雪瑜

期刊论文

Primary health care for all by 2020: The systematic reform of the medical and health system in China

期刊论文