摘要
本文以2021年至2022年韩江流域潮州段某断面水质监测数据为基础,分析该断面叶绿素a浓度的变化趋势,以及与环境因子之间的关系。结果表明,2021年和2022年,叶绿素a含量年平均值分别为5.52μg/L和4.62μg/L,年内最高浓度与最低浓度相差近10倍,在每年的枯水期和丰水期有明显的上升趋势。枯水期受流量减少的影响,水体交换时间变长,促进叶绿素a的浓度升高;丰水期叶绿素a浓度升高则是受水温影响。因此,在每年的枯水期和丰水期,相关部门应当加强预警意识,防范水体富营养化现象的发生。
Based on the water quality monitoring datas of a section of Hanjiang River basin from 2021 to 2022,the change trend of chlorophyl a concentration in this section and chlorophyl a relationship with environmental factors were analyzed.The results showed that the annual average value of chlorophyl a content in 2021 and 2022 were 5.52μg/L and 4.62μg/L.The difference between the highest and lowest concentrations in the year was nearly 10 times,and there was an obvious rising trend in withered water period and high water period.During withered water period,the water exchange time became longer due to the decrease of water flow,which promoted the increase of chlorophyll a concentration.During the high water period,the increase of chlorophyll a concentration was affected by the water temperature.Therefore,early warning awareness should be strengthened to prevent the occurrence of water eutrophication in the dry season and wet season every year.
作者
金桢锴
Jin Zhenkai(Guangdong Chaozhou Ecological Environment Monitoring Station,Chaozhou 521000,China)
出处
《皮革制作与环保科技》
2023年第10期112-114,共3页
Leather Manufacture and Environmental Technology
关键词
环境监测
叶绿素A
韩江流域
流量
environmental monitoring
chlorophyll a
Hanjiang River basin
water flow
