摘要
为探究北部湾区独流入海中小河流水质演变过程的阶段性特征及其驱动因素,以钦江为例,基于1991—2019年的监测数据及前期相关研究工作,应用水质级别指数(WLI)评价方法分析了钦江典型河段的水质演变过程,并分析了影响钦江水质演变过程的驱动因素。结果表明:钦江水质演变过程大体可分为4个阶段,第I阶段是20世纪90年代初期的严重污染阶段;第Ⅱ阶段是20世纪90年代中后期的水质好转阶段;第Ⅲ阶段是21世纪前10年的水质再次恶化阶段;第IV阶段是2011年以来的水质再次好转并趋于稳定的阶段。钦江沿岸经济社会发展进程与钦江水质演变过程紧密关联,最严格的资源环境管控政策则为修复钦江水质起到关键作用。
To explore the periodic characteristics and driving factors of water quality evolution process in small and medium-sized rivers that flowing into the Beibu Gulf,taking the Qinjiang River as an example,based on the moni⁃toring data from 1991 to 2019 and previous related research work,the water quality evolution process of the typical Qinjiang River section was analyzed by WLI evaluation method,and the driving factors affecting the evolution of wa⁃ter quality in Qinjiang River were also analyzed.The results of analysis demonstrate the evolution process of water quality in Qinjiang River can be roughly divided into four stages.The first stage is the serious pollution stage in the early 1990s.The second stage is the water quality improvement stage in the middle and late 1990s.The third stage is the stage with water quality deterioration again in the first decade of the 21st century.The fourth stage is the stage with the water quality improved again and stabilized since 2011.The economic and social development process along the Qinjiang River are closely related to the water quality evolution process of the river.The most stringent re⁃source and environment control policy plays a key role in restoring the water quality of Qinjiang River.
作者
周萍
邓建明
甘园园
唐雪军
肖大远
欧芳兰
吕俊
付波霖
ZHOU Ping;DENG Jian-ming;GAN Yuan-yuan;Tang Xue-jun;XIAO Da-yuan;OU Fang-lan;LV Jun;Fu Bo-lin(Environmental Geology Survey Institute of Guangxi Zhuang Autonomous Region,Nanning 530015,China;Guangxi Coastal Hydrology Center,Qinzhou 535000,China;Guigang Hydrology Center,Guigang 537110,China;Hydrology Center of Guangxi Zhuang Autonomous Region,Nanning 530023,China;College of Geomatics and Geoinformation,Guilin University of Technology,Guilin 541006,China)
出处
《广西水利水电》
2024年第5期141-147,共7页
Guangxi Water Resources & Hydropower Engineering
基金
广西水利科技推广项目《空天遥感技术在河流水资源环境监测评估与预警中的应用》(SK-2023-01)
广西科学研究与技术开发计划重点研发项目《基于卫星遥感影像的河流水库水质污染预警应用技术研究》(桂科AB22080046)
广西科技基地和人才专项计划资助项目《北部湾全流域生态治理集成技术研发高层次人才培养示范》(桂科AD19110140)。
关键词
水质
水质级别指数
演变规律
钦江
water quality
water quality level index(WLI)
evolution law
Qinjiang River
