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Article

Determination of Key Risk Supervision Areas around River-Type Water Sources Affected by Multiple Risk Sources: A Case Study of Water Sources along the Yangtze’s Nanjing Section

by 1,2,3, 1,2,*, 2, 2, 4 and 5
1
Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China
2
College of Environment, Hohai University, Nanjing 210098, China
3
College of Civil Engineering and Architecture, Tongling University, Tongling 244061, China
4
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
5
College of Hydrometeorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vincenzo Torretta
Sustainability 2017, 9(2), 283; https://doi.org/10.3390/su9020283
Received: 25 October 2016 / Revised: 8 February 2017 / Accepted: 9 February 2017 / Published: 16 February 2017
(This article belongs to the Section Environmental Sustainability and Applications)
To provide a reference for risk management of water sources, this study screens the key risk supervision areas around river-type water sources (hereinafter referred to as the water sources) threatened by multiple fixed risk sources (the risk sources), and establishes a comprehensive methodological system. Specifically, it comprises: (1) method of partitioning risk source concentrated sub-regions for screening water source perimeter key risk supervision areas; (2) approach of determining sub-regional risk indexes (SrRI, which characterizes the scale of sub-regional risks) considering factors like risk distribution intensity within sub-regions, risk indexes of risk sources (RIRS, characterizing the risk scale of risk sources) and the number of risk sources; and (3) method of calculating sub-region’s risk threats to the water sources (SrTWS) which considers the positional relationship between water sources and sub-regions as well as SrRI, and the criteria for determining key supervision sub-regions. Favorable effects are achieved by applying this methodological system in determining water source perimeter sub-regions distributed along the Yangtze’s Nanjing section. Results revealed that for water sources, the key sub-regions needing supervision were SD16, SD06, SD21, SD26, SD15, SD03, SD02, SD32, SD10, SD11, SD14, SD05, SD27, etc., in the order of criticality. The sub-region with the greatest risk threats on the water sources was SD16, which was located in the middle reaches of Yangtze River. In general, sub-regions along the upper Yangtze reaches had greater threats to water sources than the lower reach sub-regions other than SD26 and SD21. Upstream water sources were less subject to the threats of sub-regions than the downstream sources other than NJ09B and NJ03. View Full-Text
Keywords: multiple risk source; river-type water source; sub-region partition; SrRI; key risk supervision sub-region determination multiple risk source; river-type water source; sub-region partition; SrRI; key risk supervision sub-region determination
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MDPI and ACS Style

Zhou, Q.; Pang, Y.; Wang, X.; Wang, X.; Niu, Y.; Wang, J. Determination of Key Risk Supervision Areas around River-Type Water Sources Affected by Multiple Risk Sources: A Case Study of Water Sources along the Yangtze’s Nanjing Section. Sustainability 2017, 9, 283. https://doi.org/10.3390/su9020283

AMA Style

Zhou Q, Pang Y, Wang X, Wang X, Niu Y, Wang J. Determination of Key Risk Supervision Areas around River-Type Water Sources Affected by Multiple Risk Sources: A Case Study of Water Sources along the Yangtze’s Nanjing Section. Sustainability. 2017; 9(2):283. https://doi.org/10.3390/su9020283

Chicago/Turabian Style

Zhou, Qi, Yong Pang, Xue Wang, Xiao Wang, Yong Niu, and Jianjian Wang. 2017. "Determination of Key Risk Supervision Areas around River-Type Water Sources Affected by Multiple Risk Sources: A Case Study of Water Sources along the Yangtze’s Nanjing Section" Sustainability 9, no. 2: 283. https://doi.org/10.3390/su9020283

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