| 汾河太原段有色可溶性有机物吸收特性及来源分析 |
| |
| 引用本文： | 高峰,陈晓玲,杨文府,姚月,汪雯雯.汾河太原段有色可溶性有机物吸收特性及来源分析[J].生态环境学报,2021(3):569-577. |
| |
| 作者姓名： | 高峰 陈晓玲 杨文府 姚月 汪雯雯 |
| |
| 作者单位： | 山西财经大学资源环境学院;武汉大学/测绘遥感信息工程国家重点实验室;中国地质大学土地科学技术学院;山西省煤炭地质物探测绘院/资源环境与灾害监测山西省重点实验室;中国科学院数字地球重点实验室 |
| |
| 基金项目： | 国家自然科学基金项目(41971402);武汉大学测绘遥感信息工程国家重点实验室开放研究基金项目(19R04);资源环境与灾害监测山西省重点实验室开放基金项目(2019-05);山西省应用基础研究计划项目(201901D211407);山西省高等学校科技创新项目(2019L0485)。 |
| |
| 摘 要： | 加强城市河流水体有色可溶性有机物吸收特性及来源方面的研究,对认识和理解人类活动影响下河流有机污染物的行为特征具有重要意义.以汾河太原段为研究对象,探讨了CDOM吸收系数与总悬浮物(TSM)、有机悬浮物(OSM)、无机悬浮物(ISM)、叶绿素(Chla)、总氮(TN)和总磷(TP)等水质指标之间的关系,同时对CDOM的特...
|
| 关 键 词： | 汾河太原段 有色可溶性有机物 吸收特性 城市河流 来源分析 光谱斜率 |
Absorption Characteristics and Source Analysis of Chromophoric Dissolved Organic Matter in the Taiyuan Section of Fenhe River |
| |
| GAO Feng,CHEN Xiaoling,YANG Wenfu,YAO Yue,WANG Wenwen.Absorption Characteristics and Source Analysis of Chromophoric Dissolved Organic Matter in the Taiyuan Section of Fenhe River[J].Ecology and Environment,2021(3):569-577. |
| |
| Authors: | GAO Feng CHEN Xiaoling YANG Wenfu YAO Yue WANG Wenwen |
| |
| Institution: | (School of Resources and Environment,Shanxi University of Finance and Economics,Taiyuan 030006,China;State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing/Wuhan University,Wuhan 430079,China;School of Land Science and Technology,China University of Geosciences,Beijing 10083,China;Shanxi Key Laboratory of Resources,Environment and Disaster Monitoring/Shanxi Coal Geology Geophysical Surveying Exploration Institute,Jinzhong 030600,China;Key Laboratory of Digital Earth Science,Chinese Academy of Sciences,Beijing 100094,China) |
| |
| Abstract: | Strengthening research on the absorption characteristics and sources of chromophoric dissolved organic matter in urban river water is of great significance for understanding the behavioral characteristics of organic pollutants under the influence of human activities.This study takes the Taiyuan section of Fenhe river as the research object.The relationship between CDOM absorption coefficient and total suspended matter(TSM),organic suspended matter(OSM),inorganic suspended matter(ISM),chlorophyll(Chla),total nitrogen(TN)and total phosphorus(TP)are calculated and analyzed.In addition,M values and spectral slope S of CDOM are also discussed.The results show that:(1)The CDOM coefficient differed obviously in different sites;the change range of a(440)is 0.40-1.20 m-1;the shorter the wavelength,the more obvious the difference;(2)CDOM absorption is related to the nutrient and particulates level;There is a significant positive linear correlation between a(440)and TN,TP,TSM,ISM and OSM;However,there is no significant linear correlation between a(440)and Chla;(3)CDOM in the Taiyuan section of Fenhe river in summer is mainly come from the input of terrestrial organic pollutants;Phytoplankton metabolism and degradation contribute little to CDOM;(4)M values present a significant negative correlation with a(440)and a significant positive correlation with spectral slope S,which indicated that the relative content of humic acid is higher than that of fulvic acid,and the relative molecular mass is larger;And(5)the accuracy of the exponential function fitting model with the added background item is better than that of the conventional exponential function model,and S value is larger,which has an important influence on the analysis of the composition and source of CDOM.This paper can provide an important reference for the research on the inherent optical properties,composition and source of CDOM in urban river water,and it can also provide theoretical basis and data support for remote sensing estimation of CDOM. |
| |
| Keywords: | Taiyuan section of Fenhe River chromophoric dissolved organic matter absorption characteristics urban river source analysis spectral slope |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
