长江科学院院报 ›› 2024, Vol. 41 ›› Issue (11): 130-135.DOI: 10.11988/ckyyb.20230589

• 农业水利 • 上一篇    下一篇

农村供水风险分析与评估——以重庆市为例

韩焕豪1(), 王宇轩1, 范琳琳2(), 罗文兵2, 魏琛琛2   

  1. 1 昆明理工大学 现代农业工程学院,昆明 650559
    2 长江科学院 农业水利研究所,武汉 430010
  • 收稿日期:2023-05-28 修回日期:2023-08-16 出版日期:2024-11-01 发布日期:2024-11-26
  • 通讯作者: 范琳琳(1990-),女,湖北丹江口人,工程师,博士,主要从事农村水利方面的研究。E-mail: fll901023@163.com
  • 作者简介:

    韩焕豪(1990-),男,河南淮滨人,讲师,博士,主要从事农田面源污染治理及生态修复研究。E-mail:

  • 基金资助:
    重庆市技术创新与应用发展专项重点项目(CSTB2022TIAD-KPX0198); 重庆市水利科技项目(CQSLK-2022016)

Risk Analysis and Assessment for Rural Water Supply System: A Case Study of Chongqing City

HAN Huan-hao1(), WANG Yu-xuan1, FAN Lin-lin2(), LUO Wen-bing2, WEI Chen-chen2   

  1. 1 College of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650559,China
    2 Department of Agricultural Water Conservancy,Changjiang River Scientific Research Intitute, Wuhan 430010,China
  • Received:2023-05-28 Revised:2023-08-16 Published:2024-11-01 Online:2024-11-26

摘要:

农村供水系统受自然地理条件、水资源禀赋、经济发展水平区域差异的影响,部分地区农村供水工程抵御风险的能力相对较弱,在突发状况下可能出现断水、水质超标等供水风险。引入自然灾害风险理论,并从农村供水系统的致灾因子、孕灾环境、承灾体、防灾减灾能力4个方面构建了农村供水风险评估指标体系与评估模型,基于重庆市34个区县2020年农村供水工程信息,以区县为区域单元开展农村供水风险评估。根据各区县风险度计算结果,共划分低、中、高3个风险等级,中、高风险阈值分别为0.336 6及0.558 1。评估结果表明:5个区县(永川区、北碚区、万盛经开区、奉节县、涪陵区)属于低风险,主要分布在主城都市区;2个区县(巫山县、酉阳县)属于高风险,其中巫山县位于渝东北三峡库区,酉阳县位于渝东南武陵山区;其余27个区县属于中风险。风险评估结果可为重庆市农村供水风险预警与应对提供技术支撑。

关键词: 农村供水, 灾害风险, 风险识别, 风险评估, 重庆市

Abstract:

Rural water supply system is affected by geographical conditions, water resources endowment and regional differences in economic development level. In some areas, rural water supply projects exhibit weak resilience to risks, potentially leading to water shortage or contamination during emergencies. In this paper, the natural disaster risk theory is introduced into the analysis of rural water supply risk. An evaluation index system and the corresponding evaluation model were constructed from four aspects: disaster-causing factors, disaster-prone environment, disaster-bearing entities, and disaster prevention and mitigation capability. Based on data of rural water supply projects in 34 districts in Chongqing in 2020, the rural water supply risk at district level was assessed. According to the calculation results, the risk level was divided into three levels: low, medium and high, with the thresholds set at 0.336 6 and 0.558 1 respectively. Results indicate that five districts (Yongchuan, Beibei, Wansheng, Fengjie and Fuling), primarily located in the urban area, exhibited low risk. Two districts (Wushan and Youyang) were classified as high risk. Wushan is situated in the Three Gorges reservoir area in northeast Chongqing, while Youyang is in the Wuling Mountainous area in southeast Chongqing. The remaining 27 districts were categorized as medium risk. The risk assessment results offer technical support for early warning and response for rural water supply risks in Chongqing.

Key words: rural water supply, disaster risk, risk identification, risk assessment, Chongqing City

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