摘要
通过对黄龙沟2014—2022年水质水量监测数据进行分析,揭示了黄龙世界自然遗产地核心区(黄龙沟)地表水环境质量的时空变化趋势,为保障水体和钙华景观的可持续性发展提供基础依据。结果表明:就时间分布而言,黄龙沟地表水流量变化受降水量变化影响较大,地表水垂直渗漏情况一直存在。自2020年起,转花池林地的地表水渗漏量逐年减少。转花池泉群水质水量的时间变化趋势总体保持稳定,而下游泉点和彩池由于受到后沟地表水汇流影响,水质变化幅度普遍高于转花池。就空间分布而言,地表水在向下游流动的过程中,流量出现损失,电导率逐渐下降,而pH逐渐升高。下游泉点和彩池的溶解氧浓度高于转花池。营养状态评价结果显示,黄龙沟地表水普遍处于中营养化状态,并且自2019年以来,综合营养状态指数持续升高。水质指数评价结果显示,黄龙沟地表水水质普遍处于良好及以上等级。
Through analysis of the time series data on water quality and quantity from 2014 to 2022 for the core area of the Huanglong scenic and historic interest area,i.e.,Huanglong Valley,the temporal and spatial variations in surface water quality and quantity are revealed in this study,which provides fundamental insights for the sustainable development of water resources and travertine landscapes in Huanglong valley.The results indicates that in terms of temporal distribution,surface water flow in Huanglong Valley is primarily driven by precipitation variations,with persistent vertical infiltration observed.Since 2020,surface water infiltration in the forested zone of Zhuanhua Pool has decreased annually.Water quality and quantity trends in the Zhuanhua Pool spring group remaine generally stable,while downstream spring sites and colorful pool exhibit greater variability in water quality due to the convergence of surface water from the back valley.Regarding spatial distribution,as surface water flows downstream,there is a loss in its flow rate,the conductivity gradually decreases and the pH value gradually increases.Moreover,the dissolved oxygen concentrations at downstream spring sites and the colorful pool are higher than those at Zhuanhua Pool.Evaluation of the trophic level index indicates that the surface water in Huanglong Valley is generally mesotrophic,with the comprehensive trophic level index continuously rising since 2019.Water quality assessments indicate that the surface water is generally classified as“good”to“excellent”.
作者
陈治霖
郑超
唐淑
姜莉萍
张清明
CHEN Zhilin;ZHENG Chao;TANG Shu;JIANG Liping;ZHANG Qingming(Huanglong National Scenic Area Administration,Aba 623300,China;Sichuan Zhongheng Testing Technology Co.,Ltd.,Deyang 618000,China)
出处
《中国环境监测》
北大核心
2025年第4期146-158,共13页
Environmental Monitoring in China
关键词
地表水
时空变化
黄龙沟
水质评价
自然遗产
surface water
temporal and spatial variation
Huanglong Valley
water quality evaluation
natural heritage
作者简介
第一作者:陈治霖(1995-),男,四川都江堰人,硕士,助理工程师;通讯作者:张清明。
