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Sulfur Speciation in the Surface Sediments of Lakes from Different Regions, China: Characterization by S K-Edge XANES Spectroscopy
المؤلفون المشاركون
Jingfu, Wang
Jingan, Chen
Zhihui, Dai
Haiquan, Yang
Chenyan, Ma
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-05-16
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
X-ray absorption near edge structure (XANES) spectroscopy affords the opportunity to determine redox status for element S in the aquatic ecosystems.
However, there have been relatively few studies of S XANES spectroscopy in the terrestrial aquatic ecosystems.
In this study, XANES technology was used to examine changes in S speciation in the sediments collected from Taihu Lake, Qinghai Lake, Dianchi Lake, Caohai Lake, and Hongfeng Lake located in distinct geological background areas of China.
The results showed that sedimentary S in Qinghai Lake has a high proportion of sulfate averaged 88.9% due to physical weathering of watershed rocks, while deposited S in Taihu Lake has a high fraction of intermediate S (36.5%), which may be the response of the agricultural nonpoint source pollution in drainage basin.
The three lakes located in Southwest China have similar composition characteristics of S species, indicating similar S sources including chemical weathering of carbonate and atmospheric deposition.
60–90% of S compounds in the surface sediments were in the form of sulfate and FeS.
In deeper layers, the ratio of FeS2 and the intermediate S significantly increased, suggesting rapid processes of sulfate reduction and sulfide reoxidation with the increasing depths.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Jingfu, Wang& Jingan, Chen& Zhihui, Dai& Haiquan, Yang& Chenyan, Ma. 2016. Sulfur Speciation in the Surface Sediments of Lakes from Different Regions, China: Characterization by S K-Edge XANES Spectroscopy. Journal of Chemistry،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1107638
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Jingfu, Wang…[et al.]. Sulfur Speciation in the Surface Sediments of Lakes from Different Regions, China: Characterization by S K-Edge XANES Spectroscopy. Journal of Chemistry No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1107638
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Jingfu, Wang& Jingan, Chen& Zhihui, Dai& Haiquan, Yang& Chenyan, Ma. Sulfur Speciation in the Surface Sediments of Lakes from Different Regions, China: Characterization by S K-Edge XANES Spectroscopy. Journal of Chemistry. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1107638
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1107638
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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