Academic Journal
Changes in Organic Carbon Delivery to the Yangtze River Delta Over the Last 2000 Years
| العنوان: | Changes in Organic Carbon Delivery to the Yangtze River Delta Over the Last 2000 Years |
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| المؤلفون: | Liang Zhou, Yang Yang, Yong Shi, Xiaomei Xu, Ya Ping Wang, Jianjun Jia, Jian Hua Gao, Shu Gao |
| المصدر: | Frontiers in Marine Science, Vol 9 (2022) |
| بيانات النشر: | Frontiers Media S.A., 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Science LCC:General. Including nature conservation, geographical distribution |
| مصطلحات موضوعية: | sedimentary organic carbon, sediment source, OC burial, Huanghe River sediment, Yangtze River Delta, Science, General. Including nature conservation, geographical distribution, QH1-199.5 |
| الوصف: | Natural processes and anthropogenic activities are vital in dictating the amount and character of organic carbon (OC) input into large river deltas and adjacent shelves. Previous studies have indicated that sediment from the Huanghe River (HR) has significantly affected the formation of the northern Yangtze River subaqueous delta (YRD) over the past several hundred years. However, whether this process has changed sedimentary OC burial in the YRD remains unclear. A sediment core was collected from the YRD in 2018 CE for optically stimulated luminescence and 210Pb dating as well as grain size, total OC, total nitrogen, and stable-isotope analyses to investigate temporal changes in sedimentary OC over the past 2000 years. The results indicate that changes in terrestrial OC inputs to the YRD have been controlled mainly by the East Asian summer monsoon and anthropogenic influences in the past 2000 years. However, the decreased terrestrial OC inputs after 1385 CE, have been significantly affected by increased contribution of HR sediment to the YRD when the HR lower courses shifted to enter the southern Yellow Sea. This study demonstrates that sediment source changes should not be neglected in analyses of mechanisms and variations in OC burial in estuarine and coastal areas. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2296-7745 |
| Relation: | https://www.frontiersin.org/articles/10.3389/fmars.2022.867820/full; https://doaj.org/toc/2296-7745 |
| DOI: | 10.3389/fmars.2022.867820 |
| URL الوصول: | https://doaj.org/article/de57fee7f3c54e099ea8d448c3a44ae2 |
| رقم الانضمام: | edsdoj.57fee7f3c54e099ea8d448c3a44ae2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22967745 |
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| DOI: | 10.3389/fmars.2022.867820 |