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DOI: 10.1016/j.palaeo.2016.06.010
论文题名:
Assessing pollen distribution patterns and provenance based on palynological investigation on surface sediments from Laizhou Bay, China: An aid to palaeoecological interpretation
作者: Yang S.; Li J.; Mao L.; Liu K.-B.; Gao M.; Ye S.; Yi S.; Zhou L.; Wang F.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 457
起始页码: 209
结束页码: 220
语种: 英语
英文关键词: Laizhou Bay ; Marine palynology ; Pollen provenance ; Surface sediments
英文摘要: Assessing pollen distribution patterns in the sea is essential to understanding pollen provenance, upon which subsequent interpretation of Quaternary pollen data from marine sediments in the same study area should be soundly based. Here we present palynological data from seafloor sediments in Laizhou Bay and analogous samples from its inflowing rivers to elucidate the distribution patterns and provenance of modern palynomorphs. Our results demonstrate that the pollen assemblages of marine areas are dominated by arboreal pollen types, especially Pinus, and herbaceous pollen types are dominated by Chenopodiaceae and Artemisia. The higher pollen concentrations occur in the southwest area of Laizhou Bay, and the lower pollen concentrations are mainly distributed in the nearshore area of the Yellow River estuary. Such pollen distribution patterns are tightly correlated with the distribution features of grain size of the surface sediments. Specifically, the sediments with higher pollen concentrations are of very fine and fine silts, whereas those with lower pollen concentrations are of fine sands. The results of PCA analysis suggest that pollen grains in the nearshore areas are mainly transported by water flows, of which herbaceous pollen show relatively higher concentrations; while pollen grains in the offshore areas are largely carried by winds, especially those pollen types with sacs, such as Pinus. Dissimilarity analysis between marine and alluvial samples indicates that the pollen spectrum show close linkage with the regional vegetation in the surrounding watersheds. Pollen quantitative characteristics and pollen assemblage changes in different parts of the marine areas indicate various pollen provenance and changing landscape of terrestrial vegetation, particularly along the inflowing rivers. Our Assessments on pollen distribution patterns and provenance based on palynological investigation would strongly aid Quaternary palaeoecological and palaeoclimatological interpretation for our study area. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68349
Appears in Collections:过去全球变化的重建

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作者单位: Key Laboratory of Coastal Wetland Biogeosciences, China Geologic Survey, Qingdao, China; Function Laboratory for Marine Geology, National Oceanography Laboratory, Qingdao, China; Qingdao Institute of Marine Geology, The Ministry of Land and Resources, Qingdao, China; Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China; Department of Oceanography and Coastal Sciences, School of the Coast and Environment, Louisiana State University, Baton Rouge, LA, United States; Korea Institute of Geosciences and Mineral Resources, Daejeon, South Korea; Korea University of Science and Technology, Daejeon, South Korea

Recommended Citation:
Yang S.,Li J.,Mao L.,et al. Assessing pollen distribution patterns and provenance based on palynological investigation on surface sediments from Laizhou Bay, China: An aid to palaeoecological interpretation[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,457
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