基于可变模糊识别模型的水环境系统恢复力评价

Quantitative assessment of resiliencefor water environment system in Hanjiang River basin

随着当今社会水污染问题的日益突出,研究重点逐渐转移到水环境修复问题上,以实现水资源的可持续利用.但各个地区水环境恢复能力到底如何,却很少有人研究.在系统总结前人对恢复力研究的基础上,提出水环境系统恢复力的概念,构建了水环境系统恢复力评价指标体系.将可变模糊识别模型运用到水环境系统恢复力评价中,为水环境系统恢复力研究提供定量分析方法.结合汉江流域具体案例进行了实证评价,分析了汉江流域水环境恢复力的主要影响因素,评价了不同年份的水环境恢复力水平.并运用灰色关联法验证了结果的合理性.研究结果可为水环境保护和管理提供技术参考.

With the development of the economy, the environmental pollution problem is increasingly out- standing. The research emphasis in this field is gradually shifted to water environment restoration in order to realize the sustainable utilization of the water environment. However, there is little study of water environmental resilience . This paper proposed a definition of water environmental resilience and established resilience indicators based on the advanced research on resilience at home and abroad. The variable fuzzy recognition model is utilized in evaluating water environment resilience, which provides a quantitative analy- zing method for research of water environment resilience. The method is utilized in Hanjiang River basin. The main influencing factors on water environment resilience are analyzed. And shows the trend of water environment resilience index of Hanjiang River basin . The accuracy of the model has been verifed by gray correlation method. The research provides a technical support for water environment protection and management.