摘要
硝酸盐氧同位素与水化学指标的联合应用是解析河流硝酸盐污染来源与迁移转化过程的关键技术手段。该技术组合能够有效示踪硝酸盐的生成机制、迁移路径及生物地球化学转化过程,为流域尺度“氮总量控制”提供同位素地球化学证据,在水资源管理、流域生态保护及全球气候变化背景下的氮循环研究中具有重要的科学价值。本研究以中国西部干旱-半干旱区的典型流域——渭河流域为研究对象,系统收集整理了渭河流域主要干、支流(包括渭河干流及黑河、灞河、沣河、涝河、浐河、泾河等6条重要支流)的硝酸盐氧同位素及水化学指标数据集。数据集以Excel文件构成,按7条流域分别整理。数据来源包括两部分:一部分是本实验室测定的数据,已通过严格的实验流程、分析方法进行质量控制与评估;另一部分是引用该区域已发表相关研究成果中的数据,均以已发表文献中的数据为准,以确保引用数据的准确性。本数据集可为渭河流域水体污染物的时空分布以及溯源的过程机制提供数据支撑,为今后有效控制污染提供理论基础,并为流域内水资源管理工作提供科学依据。
The combined application of nitrate oxygen isotopes and water chemistry indicators is a key technical approach for analyzing the sources of nitrate pollution in rivers and the processes of its migration and transformation.This technical combination can effectively trace the formation mechanisms,migration pathways,and biogeochemical transformation processes of nitrate,providing isotope geochemical evidence for“total nitrogen control”at the watershed scale.It holds significant scientific value in water resource management,watershed ecological protection,and nitrogen cycle research under the backdrop of global climate change.This study focus on the Weihe River Basin,a typical basin in the arid-semi-arid region of western China,and systematically compiles nitrate oxygen isotope and water chemistry indicator datasets from the main stem and tributary rivers of the Weihe River Basin(including the main stem of the Weihe River and the Hei River,Ba River,Feng River,Liao River,Chan River,and Jing River)in the Wei River basin.The dataset is organized in Excel files,with separate files for each of the seven rivers.The data sources consist of two parts:one part is data measured by our laboratory,which has undergone rigorous experimental procedures and analytical methods for quality assurance and quality control;the other part is data cited from published research results in this region,all of which are based on data from published literature to ensure data reliability.This dataset provides fundamental data support for the spatiotemporal distribution and source tracing mechanisms of water pollutants in the Wei River basin,laying a theoretical foundation for effective pollution control in the future and providing a scientific basis for water resource management within the basin.
作者
任豪钰
冯苗苗
姚少杰
李宇亮
刘卫国
胡婧
黎焦焦
邢萌
潘梦言
REN Haoyu;FENG Miaomiao;YAO Shaojie;LI Yuliang;LIU Weiguo;HU Jing;LI Jiaojiao;XING Meng;PAN Mengyan(Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region and Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources,School of Water and Environment,Chang'an University,State Key Laboratory of Loess Science,Xi'an 710064,P.R.China;State Key Laboratory of Loess Science,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,P.R.China;Guangdong Yikangsheng Environmental Protection Technology Co.,Ltd,Yunfu 527499,P.R.China)
基金
国家自然科学基金(42207300、42377261)
黄土科学重点实验室培育项目(SKLLQGPY2412)。
关键词
渭河流域
硝酸盐氧同位素
水化学指标
水体污染
Weihe River Basin
nitrate oxygen isotope
water chemistry indicators
water pollution
