Characteristics and benthic processes of organic carbon in the adjacent area of Rushan Bay

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋生态研究中心

	Characteristics and benthic processes of organic carbon in the adjacent area of Rushan Bay
	Zang, Jia-Ye 1; Zhao, Chen-Ying 1; Liu, Jun 1,2; Xie, Lin-Ping 1; Wang, Yi-Bin 1; Zhang, Ai-Jun 1; Ran, Xiang-Bin 1
刊名	Zhongguo Huanjing Kexue/China Environmental Science
	2017
卷号	37 期号:3 页码:1089-1102
关键词	Barium compounds Biogeochemistry Budget control Fluxes Sediments
ISSN号	10006923
英文摘要	Estuaries, lagoons and bays are considered as the most important ocean margins due to their important influence in land-sea interaction under human activities, playing key roles in the regional carbon biogeochemical cycles. Based on measurements obtained from comprehensive survey in the adjacent area of Rushan Bay in summer of 2009 and 2014, organic carbon (OC) distributions, its benthic processes and influence factors were determined. The results showed that the concentration of dissolved organic carbon (DOC) in summer 2009 ranges from 0.70 to 3.19mg/L, with an average concentration of 1.80mg/L. Concentration of DOC was high in August, and low in June. Time-dependent variation of DOC and particulate organic carbon (POC) were ranged in1.79~15.2mg/L and 0.04~1.33mg/L, respectively. DOC patterns were mainly affected by human activities, primary production and tide. Estimated POC sedimentation rate was (25±0.8) g/m2in summer, accounting for 66% of the carbon fixation by phytoplankton related to primary production. DOC concentrations in the pore water of the upper sediment (0~4cm) were 8~9times larger than those in the overlying water, and benthic DOC flux at the sediment-water interface ranged from 14.4 to 97g/(m2a), accounting for 1.1%~13.4% of DOC in the water DOC pool. Anthropogenic activities were the key factors that influence the OC distribution and cycling in the coastal areas of Rushan Bay. The OC budget shows that regeneration of sedimentary TOC contributes to a large share of diffusive DOC flux, indicating that the sediment is a significant source of DOC to water column in the study area. More than 50% of OC can be transported by tides and currents. The net burial of OC in sediments represents 13% of the carbon pool that yield by the primary production in summer. Low-oxygen level may enhance benthic diffusive of DOC and other diagenetic processes, which would play a key role in controlling OC conservation in the sediment. © 2017, Editorial Board of China Environmental Science. All right reserved.
语种	中文
出版者	Chinese Society for Environmental Sciences
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/6528]
专题	业务部门_海洋生态研究中心
作者单位	1.Research Center for Marine Ecology, First Institute of Oceanography, State Oceanic Administration, Qingdao; 266061, China;; 2.Laboratory of Marine Geology and Geophysics, First Institute of Oceanography, State Oceanic Administration, Qingdao; 266061, China
推荐引用方式 GB/T 7714	Zang, Jia-Ye,Zhao, Chen-Ying,Liu, Jun,et al. Characteristics and benthic processes of organic carbon in the adjacent area of Rushan Bay[J]. Zhongguo Huanjing Kexue/China Environmental Science,2017,37(3):1089-1102.
APA	Zang, Jia-Ye.,Zhao, Chen-Ying.,Liu, Jun.,Xie, Lin-Ping.,Wang, Yi-Bin.,...&Ran, Xiang-Bin.(2017).Characteristics and benthic processes of organic carbon in the adjacent area of Rushan Bay.Zhongguo Huanjing Kexue/China Environmental Science,37(3),1089-1102.
MLA	Zang, Jia-Ye,et al."Characteristics and benthic processes of organic carbon in the adjacent area of Rushan Bay".Zhongguo Huanjing Kexue/China Environmental Science 37.3(2017):1089-1102.