Evolution of the mud patch in the north Yellow Sea and its response to climate change in the past 160 years

Liu, Xiaohang1; Hu, Lisha1,2; Wu, Xiao1,2; Wang, Yueming1; Xu, Jingping3,4

2019-01

10.1139/anc-2018-0017

Anthropocene Coasts   影响因子和分区

2561-4150

2561-4150

As the most important sediment source to the north Yellow Sea (NYS), the sediment discharge from the Yellow River has substantially decreased for at least half a century. The response of the existing mud patches to this decline is not well understood. Here, we present high-resolution grain-size parameters and geochemical composition of one gravity core (B23) collected in the NYS mud patch to investigate the behavior of the mud patch variation in correspondence to the Yellow River's sediment discharge reduction. The B23 age model is derived by Pb-210 dating method, and the average sedimentation rate is estimated to be 0.49 cm/year. Results of a geochemical discrimination analysis suggest that the sediments of B23 were mainly transported from the Yellow River by the strong coastal current along the Shandong Peninsula, whereas the contributions of sediments from Yangtze and Yalu rivers are also measurable. In around 1980, the ratio of sediments from the Yellow River underwent an apparent decrease in the NYS mud. Simultaneous changes include coarsening of grain size and disaccord between East Asia Winter Monsoon intensity and content of sensitive grain size. These are all directly or indirectly due to the decline of the Yellow River's sediment discharge.

north Yellow Sea mud patch grain size element geochemistry Yellow River

ESCI

英语

通讯

National Science Foundation of China (NSFC)[41530966][41476070][U1606401]

Environmental Sciences & Ecology ; Oceanography

Environmental Sciences ; Oceanography

WOS:000548324100012

CANADIAN SCIENCE PUBLISHING

Web of Science

1.Ocean Univ China, Coll Marine Geosci, 238 Songling Rd, Qingdao 266100, Peoples R China
2.Minist Educ, Key Lab Submarine Geosci & Prospecting Technol, 238 Songling Rd, Qingdao 266100, Peoples R China
3.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China

Liu, Xiaohang,Hu, Lisha,Wu, Xiao,et al. Evolution of the mud patch in the north Yellow Sea and its response to climate change in the past 160 years[J]. Anthropocene Coasts,2019,2(1):193-208.

Liu, Xiaohang,Hu, Lisha,Wu, Xiao,Wang, Yueming,&Xu, Jingping.(2019).Evolution of the mud patch in the north Yellow Sea and its response to climate change in the past 160 years.Anthropocene Coasts,2(1),193-208.

Liu, Xiaohang,et al."Evolution of the mud patch in the north Yellow Sea and its response to climate change in the past 160 years".Anthropocene Coasts 2.1(2019):193-208.