NDLI: Burial of terrestrial and marine organic carbon in Jiaozhou Bay: different responses to urbanization

Content Provider	Springer Nature Link
Author	Yang, Liyang Wu, Ying Zhang, Jing Liu, Sumei Deng, Bing
Copyright Year	2011
Abstract	Organic geochemical proxies (OC, OC/TN, δ13C, and lignin oxidation products) were measured in a 271 cm long sediment core collected from central Jiaozhou Bay, northern China, to study the response of terrestrial and marine organic carbon burials to the surrounding urbanization. Terrestrial organic carbon content was constantly low from the bottom of the core to ~150 cm depth, indicating a stable and low level of terrestrial input before urbanization. Thereafter, it increased up to ~20 cm depth, suggesting that increased human activities and land-use changes during urbanization likely enhanced the flux of terrestrial organic carbon to the bay. Overall, 5–38% of the total organic carbon was terrigenous, which was derived from a mixture of woody and non-woody angiosperms and moderately degraded. Marine organic carbon content did not increase notably during urbanization. It increased from the bottom of the core to ~180 cm and stayed at high levels until it decreased in the top 20 cm. It was affected by multiple factors, including grain size and nutrient composition. These results demonstrate the different influences of urbanization on terrestrial and marine organic carbon cycles and suggest the importance of discriminating between these two organic carbon pools in the reconstruction of their historical changes.
Starting Page	707
Ending Page	714
Page Count	8
File Format	PDF
ISSN	14363798
Journal	Regional Environmental Change
Volume Number	11
Issue Number	3
e-ISSN	1436378X
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-01-06
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Urbanization Organic carbon Stable isotope Lignin phenols Bay Climate Change Regional/Spatial Science Geography (general) Geology Nature Conservation Oceanography
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change

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