Emission Control in River Network System of the Taihu Basin for Water Quality Assurance of Water Environmentally Sensitive Areas

Xiao, Wang; Pang, Yong; Wang, Hua; Shen, Chaoqun; Wang, Xue

doi:10.3390/su9020301

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The western part of the study area is Tiaoxi basin and the eastern part is the Hangzhou-Jiaxing-Huzhou plain river network area. The actual river flows of the total research area are 79.2 billion m 3 . Limited by geographical conditions, the water naturally flows from southwest to northeast into Taihu Lake and Huangpu River.…”

Section: Study Areamentioning

confidence: 99%

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Study of Water Environmental Cumulative Risk Assessment Based on Control Unit and Management Platform Application in Plain River Network

et al. 2017

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Abstract:As the gradual deterioration of the environment, the method of environmental risk assessment has been developed from basing only on a single source to basing on a cumulative risk source. In accordance with the water environment features of the plain river network area, a cumulative risk assessment system of water environment in the plain river network area was established in this paper, the design process for which could be divided into three step: (1) Control unit divided reasonably was chosen as the basic unit for water quality management. (2) On that basis, according to the characteristics of the plain river network area, the cumulative risk indexes were selected. The index weight is calculated using entropy method and analytic hierarchy process (AHP), which could determine the risk grade of each control unit. (3) The cumulative risk assessment method is coupled to the existing water environment management platform. The platform with a dynamic database can realize the dynamic calculation and visualization of the cumulative risk grade. In this paper, the Zhejiang area of Taihu Basin was selected to be the research target as the typical plain river network area. Thirty-five control units were divided with regional water environment and control section. Taking the data in the year 2011 as example, the proposed cumulative risk assessment method was used to identify the control units in different grades and the results demonstrated that the numbers of high-, medium-, low-and extremely low-risk control units are 13, 12, 5 and 5, respectively. It is necessary to give priority to the high-risk control unit. Therefore, the cumulative risk assessment method based on the control unit provides an essential theoretical basis for reducing the probability of water pollution and reducing the degree of water pollution damage.

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Section: Study Areamentioning

confidence: 99%

“…The river flow in the junction of the eastern part and Shanghai City is directly affected by the tide. The annual flood volume is about 69.6 billion m 3 , and the ebb volume is about 12.4 billion m 3 . The average annual rainfall in the study area is about 1336 mm.…”

Section: Study Areamentioning

confidence: 99%

Study of Water Environmental Cumulative Risk Assessment Based on Control Unit and Management Platform Application in Plain River Network

et al. 2017

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“…Watershed management is a key issue for regional water resource retention, ecosystem conservation and pollution reduction [1][2][3][4]. In the watershed management domain, the control unit is defined as a spatial management unit integrating administrative area, water body and control section.…”

Section: Introductionmentioning

confidence: 99%

Zoning and Analysis of Control Units for Water Pollution Control in the Yangtze River Basin, China

et al. 2017

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Abstract:In order to meet the needs of the control-unit-based water pollution prevention problem in China, we proposed a comprehensive control unit zoning method with the combined basic administrative region and objective watershed management. The method can effectively connect the natural characteristics of watershed water sources, three-level zoning of water resources, and comprehensively consider the pollution distribution, socio-economics and many other factors. The zoning process includes four steps: (1) Generate the multi-level hydrological unit; (2) Identify the multi-element water catchment units; (3) Obtain the control unit with the administrative boundary as the boundary; (4) Check and adjust the results to meet the actual needs. Based on this method, the Yangtze River Basin was divided into 568 control units with a total area of 1.91 million km 2 . These control units were used as the basic unit to analyze the water quality status and the results show that the upper reaches have good water quality, while the lower reaches have poor water quality and more serious water pollution. Our study helps the Ministry of Environmental Protection of China develop the list of control units that are needed to improve water quality during the "13th Five-Year Plan", with a goal to provide technical support for control-unit-based water pollution prevention and control in the future.

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Study of ecological compensation in complex river networks based on a mathematical model

Wang

Shen

Wei

et al. 2018

Environ Sci Pollut Res

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Transboundary water pollution has resulted in increasing conflicts between upstream and downstream administrative districts. Ecological compensation is an efficient means of restricting pollutant discharge and achieving sustainable utilization of water resources. The tri-provincial region of Taihu Basin is a typical river networks area. Pollutant flux across provincial boundaries in the Taihu Basin is hard to determine due to complex hydrologic and hydrodynamic conditions. In this study, ecological compensation estimation for the tri-provincial area based on a mathematical model is investigated for better environmental management. River discharge and water quality are predicted with the one-dimensional mathematical model and validated with field measurements. Different ecological compensation criteria are identified considering the notable regional discrepancy in sewage treatment costs. Finally, the total compensation payment is estimated. Our study indicates that Shanghai should be the receiver of payment from both Jiangsu and Zhenjiang in 2013, with 305 million and 300 million CNY, respectively. Zhejiang also contributes more pollutants to Jiangsu, and the compensation to Jiangsu is estimated as 9.3 million CNY. The proposed ecological compensation method provides an efficient way for solving the transboundary conflicts in a complex river networks area and is instructive for future policy-making.

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Emission Control in River Network System of the Taihu Basin for Water Quality Assurance of Water Environmentally Sensitive Areas

Cited by 6 publications

References 14 publications

Study of Water Environmental Cumulative Risk Assessment Based on Control Unit and Management Platform Application in Plain River Network

Study of Water Environmental Cumulative Risk Assessment Based on Control Unit and Management Platform Application in Plain River Network

Zoning and Analysis of Control Units for Water Pollution Control in the Yangtze River Basin, China

Study of ecological compensation in complex river networks based on a mathematical model

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