使用改进的综合模糊评估方法,在金沙河下流域评估河流生态系统的健康状况
Keqin You1, Enlong Liu2, Daizhong Cheng3
1State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China.
Environmental monitoring and assessment
|November 12, 2025
概括
这里是金沙河 (Jinsha River).
科学领域:
- 评估河流生态系统健康状况
- 环境监测和环境管理
- 模糊的综合评估方法.
背景情况:
- 下沙河的生态系统健康需要全面评估.
- 八个主要的支流被选中进行评估.
- 现有的评估方法可能会引入由于刚性门而导致的偏差.
研究的目的:
- 建立一个强大的框架来评估河流生态系统的健康.
- 评估金沙河下游支流的当前健康状况.
- 确定影响生态系统健康的关键驱动因素,并提出管理策略.
主要方法:
- 开发了一个多层次的模糊综合评估框架.
- 分析层次过程 (AHP),权方法和最大成员原则被整合在一起.
- 在五个子标准 (形态,水文,化学,生物完整性和区域服务可持续性) 中使用了16个指标.
主要成果:
- 吉沙河下游的整体生态系统健康被归类为健康 (平均河流健康指数 = 80.73).
- 观察到显著的时空异质性,形态完整性低 (平均值 = 69.98) 和化学完整性高 (平均值 = 91.50).
- 损坏的河流连接,农业非点源污染和入侵物种被确定为主要威胁.
结论:
- 模糊的综合评估方法有效处理河流健康评估中的不确定性.
- 需要有针对性的管理策略来解决污染和入侵物种等特定压力因素.
- 建议包括减少污染,加强监测和生物修复,以改善河流运行.
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