中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 脱甲河氢氧同位素组分时空分布特征及其影响因素 应用生态学报 2018 (5) 1461-1469
Position: Home > Articles > Temporal and spatial variations of hydrogen and oxygen isotopes in Tuojia River and its influencing factors Chinese Journal of Applied Ecology 2018 (5) 1461-1469

脱甲河氢氧同位素组分时空分布特征及其影响因素

作  者：
吴红宝;赵强;秦晓波;高清竹;吕成文
关键词：
氢氧稳定同位素;过量氘;水温;降水;高程
摘  要：
河水氢氧稳定同位素特征是研究水体转化和示踪水循环过程的重要内容.为研究河水氢氧稳定同位素特征,揭示河水补给来源,于2017年4—8月对亚热带农业小流域脱甲河4级河段(S_1、S_2、S_3和S_4)水体氢(D)、氧(~(18)O)稳定同位素进行了监测,分析其时空动态特征和过量氘(d-excess)的变化规律,并探讨了它们与降水、高程和水质等影响因子的相关关系.结果表明:δD、δ~(18)O和d-excess的变化范围分别在-43.17‰~-26.43‰(-35.50‰±5.44‰)、-7.94‰~-5.70‰(-6.86‰±0.74‰)和16.77‰~23.49‰(19.39‰±1.95‰).受季风环流的影响,δD和δ~(18)O具有明显的季节变化特征,即春季(δD和δ~(18)O为-29.88‰±3.31‰和-6.18‰±0.57‰)>夏季(δD和δ~(18)O为-39.25‰±2.65‰和-7.32‰±0.42‰);空间上,δD和δ~(18)O表现出明显的沿程变化,随着采样点的位置到河流源头的距离波动增加,δD为S_1
译  名：
Temporal and spatial variations of hydrogen and oxygen isotopes in Tuojia River and its influencing factors
作  者：
WU Hong-bao;ZHAO Qiang;QIN Xiao-bo;GAO Qing-zhu;LYU Cheng-wen;Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences/Key Laboratory of Agricultural Environment,Ministry of Agriculture;College of Territorial Resources and Tourism,Anhui Normal University;
关键词：
hydrogen and oxygen stable isotopes;;deuterium excess;;water temperature;;precipitation;;altitude
摘  要：
The characteristics of hydrogen and oxygen stable isotopes in river is important for regional hydrologic cycle research. To uncover water supply sources in subtropical agricultural basin from a perspective of stable isotopes,field measurements were conducted in four reaches( S_1,S_2,S_3 and S_4) of Tuojia River from April to August 2017. We analyzed the spatial and temporal variations in hydrogen and oxygen isotopes and deuterium excess parameters and their relationship with precipitation,altitude and water quality. Results showed that hydrogen and oxygen isotopes and deuterium excess values ranged from-43. 17‰ to-26. 43‰(-35. 50‰ ± 5. 44‰),-7. 94‰ to-5.70‰(-6.86‰± 0.74‰),and 16.77‰ to 23. 49‰( 19. 39‰ ± 1. 95‰),respectively. Under the influence of monsoon circulation,hydrogen and oxygen isotopes showed substantial seasonal variation,with spring( δD:-29.88‰±3.31‰; δ~(18)O:-6.18‰±0.57‰) > summer( δD:-39.25‰±2.65‰; δ~(18)O:-7.32‰± 0.42‰). The spatial distribution of hydrogen and oxygen isotopes values increased fluctuantly with the position from the sampling site to the river's source,with δD: S_1

相似文章

导出引用
计量
文章访问数: 5
HTML全文浏览量: 0
PDF下载量: 1

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46