首页|2016-2021年江汉平原水质时空变异分析

2016-2021年江汉平原水质时空变异分析

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
近年来，人类活动的加剧造成江汉平原水体水环境质量下降，导致河网中下游水质序列发生复杂的演变。本文基于2016-2021年江汉平原四湖流域水环境质量监测数据，分析特征污染物的分布特征、变化规律及主要环境影响因素，诊断水质序列时空变异，探讨可变要素集和影响因素集。研究表明:1)四湖流域中下游水质序列变异普遍显著，存在明显浓度梯度变化。2)过度水产养殖导致河道水质季节性超标现象凸显。3)面源污染和生态基流是影响干渠水质变化的主导因素。结果表明，本文分析方法在水质变化分析中具有一定的适用性。
Variability Analysis of Water Quality Series in Jianghan Plain During 2016-2021
In recent years,the intensification of human activities has resulted in the decline of water quality for Jianghan Plain,the water quality series presents complicated evolution phenomena in middle and lower reaches of the main canal.Based on annual water quality monitoring data of Four Lakes(from 2016 to 2021),this study analyzed the distribution characteristics,variation rules and main environmental impact factors of the characteristic pollutants;diagnosed the spatiotemporal variation of water quality sequence,and recognized a set of variation elements and impact factors of regional system.The results showed that:①The water quality of the middle and lower reaches were remarkable,and the series had obvious concentration gradient.(2)Excessive aquaculture had led to the phenomenon of seasonal over-standard prominently.(3)Non-point source pollution and ecological flow were the leading factors of water quality for the main canal.It indicated that this method could be used for variation analysis of water quality.

changing environmentswater qualityHurst coefficientGini coefficientvariation analysisJianghan Plain

陈鹏、陈晓飞、李世龙、何乾坤、汪政辉

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湖北省生态环境科学研究院(湖北省生态环境工程评估中心),湖北武汉 430061

变化环境 水质 Hurst系数 基尼系数 变异分析 江汉平原

国家科技重大专项国家科技重大专项湖北省省级环保科研项目湖北省省级环保科研项目湖北省省级环保科研项目湖北省省级环保科研项目

2012ZX07104-0022015ZX07205-0032018HB012019HB012021HB-012022HB-07

2024

10.16088/j.issn.1001-6600.2023091802

广西师范大学学报(自然科学版)
广西师范大学

广西师范大学学报(自然科学版)

CSTPCD北大核心
影响因子：0.448
ISSN：1001-6600
年,卷(期)：2024.42(4)