白洋淀补水通道DOM组分特征及无机离子对其影响研究  

Study on the Characteristics of DOM Components and the Influence of Inorganic Ions on the Water Recharge Channel in Baiyangdian Lake

作　　者：张博[1] 秦亚强 Zhang Bo;Qin Yaqiang(Hebei University of Engineering,Handan 056038,China)

机构地区：[1]河北工程大学,河北邯郸056038

出　　处：《广东化工》2024年第19期72-75,共4页Guangdong Chemical Industry

摘　　要：白洋淀水源主要以外调水为主,研究补水通道水化学特征对入淀河流的环境管理及淀区的水质保持具有重要意义。本研究以白洋淀补水通道白沟引河、府河、孝义河和小白河为研究对象,利用三维荧光光谱、电感耦合等离子体发射光谱等方法,分析了不同补水路径中水体溶解性有机质,营养盐及无机离子分布差异性。结果表明:(1)白洋淀补水通道溶解性有机质为类腐殖质、类酪氨酸和类色氨酸3类,其中白沟引河的类酪氨酸、类色氨酸总占比为82%,府河、孝义河和小白河DOM荧光组分则以类腐殖质、类酪氨酸为主,占总组分分别为97%、84%和94%。(2)白洋淀补水通道地表水DOM主要来源于陆源输入和自身生物降解。白沟引河、府河、孝义河水化学类型为Na·Ca-HCO_(3)型,小白河水化学类型为Na·Ca-SO_(4)·Cl型。不同补水类型河道的有机及无机组分具有差异。(3)河道水体中溶解性有机质转化过程受主要无机离子(Na^(+)、K^(+)、Ca^(2+)、Mg^(2+)、Cl^(-)、SO_(4)^(2-))、营养盐影响。本研究为河道水体溶解性有机质转化效应及白洋淀生态补水和水生态修复提供基础支撑。The water source of Baiyangdian was primarily dependent on external water diversion.The study of the hydrochemical characteristics of the replenishment channel was of significant importance for the environmental management of the Inlet River and the maintenance of water quality in the Baiyangdian area.This research focused on the replenishment channels of Baiyangdian,including Baigou Diversion River,Fu River,Xiaoyi River,and Xiaobai River.Various methods such as three-dimensional fluorescence spectroscopy,inductively coupled plasma emission spectroscopy,etc.,were employed to analyze the differences in dissolved organic matter,nutrients,and inorganic ion distribution in different replenishment pathways.The results indicated that:(1)The dissolved organic matter in Baiyangdian replenishment channels comprises humic substances,tyrosine-like compounds,and tryptophan-like compounds.Among them,tyrosine-like compounds and tryptophan-like compounds in Baigou Diversion River account for 82%of the total,while Fu River,Xiaoyi River,and Xiaobai River DOM fluorescence components are mainly humic substances and tyrosine-like compounds,accounting for 97%,84%,and 94%of the total,respectively.(2)Surface water DOM in Baiyangdian replenishment channels was mainly derived from terrestrial inputs and self-biological degradation.The hydrochemical types of Baigou Diversion River,Fu River,and Xiaoyi River were Na·Ca-HCO_(3),while Xiaobai River was Na·Ca-SO_(4)·Cl.Different replenishment types of rivers exhibit differences in organic and inorganic components.(3)The transformation of dissolved organic matter in river water was influenced by major inorganic ions(Na^(+),K^(+),Ca^(2+),Mg^(2+),Cl^(-),SO_(4)^(2-)),nutrients.This study provided a foundational support for understanding the transformation effects of dissolved organic matter in river water and the ecological replenishment and aquatic ecological restoration of Baiyangdian.

关 键 词：白洋淀 补水通道 溶解性有机质 三维荧光 无机离子 

分 类 号：X8[环境科学与工程—环境工程]