Abstract
The south coastal plain of Laizhou Bay is one of the typical salt-water intrusion areas in China, the occurrence and development of which was closely related with the palaeoenvironment evolution. Systematic analyses of pollen, foraminifera and grain size com-position based on 14C and luminescence dating from two sediment cores were performed for the purpose of understanding the salt-water intrusion in the coastal plain of Laizhou Bay from the perspective of environmental evolution since late Pleistocene. It could be classified into seven evolution stages since 120 kaBP: 120-85 kaBP was a transition period from cold to warm; 85-76 kaBP was a period with warm and wet climate having swamp lakes developed in the lower reaches of the Weihe River, south coastal plain of Laizhou Bay; 76-50 kaBP was characterized by grassland vegetation and coarse sediments in terrestrial environment, which was the early stage of Dali Ice-Age; 50-24 kaBP was a period with alternate sea deposition in the south coastal plain of Laizhou Bay; 24-10 kaBP was the late stage of Dali Ice-Age with coldest period of Quaternary, the south coastal plain of Laizhou Bay was dry grassland and loess deposition environment; 10-4 kaBP was another warm and wet climate period, sea level was high and regressed at 4 kaBP; and has been the modern sedimentary environment since 4 kaBP. Among the three warm stages, including 85-76 kaBP, 50-24 kaBP and 10-4 kaBP, corresponded to late Yangkou, Guangrao and Kenli seawater transgression respectively. The duration of the latter one in south coastal plain of Laizhou Bay was longer than that in west coast of Bohai Sea and east coast of Laizhou Bay. The three periods of seawater transgression formed the foundation of salt-water intrusion in this area.
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References
Calvache M L, Pulido-Bosch A, 1997. Effects of geology and human activity on the dynamics of salt-water intrusion in three coastal aquifers in southern Spain. Environmental Geology, 30: 215–223.
Chen Weimin, 1997. The exploration of man-land relationship control on the sea water intrusion area of Laizhou Bay. Geographical Research, 16(suppl.): 156–160. (in Chinese)
Denton G A et al., 1973. Holocene climate variations: Their pattern and possible cause. Quaternary Research, 3: 155–205.
Linik H E, Singer L B, 1979. Terrigenous Clastic Depositional Environment. Chen Changing, Li Jiliang (trans.) Beijing: Petroleum Industry Press, 111–130.
Liu Enfeng, Zhang Zulu, Shen Ji et al., 2003. Sedimentary characteristics of Weihe palaeochannel since Late Pleistocene and their control to modern salt-water intrusion. Geological Journal of China Universities, 9(9): 47–53. (in Chinese)
Lu Houyuan, 1989. The sporo-pollen assemblages in the sediments in the southern Bohai Sea since the late Pleistocene and its palaeo-environmental analysis. Advances in Marine Science, (2): 11–25. (in Chinese)
Wang Qing, 1999. Influence of the middle and later Holocene relative seal level change on the coastal geomorphic evolution along the north eastern Shandong Peninsula. Geographical Research, 18(2): 122–129. (in Chinese)
Wang Shouchun, 1998. The changes of lakes on coastal plain along the Laizhou Bay in historical times. Geographical Research, 17(4): 423–428. (in Chinese)
Xu Duo, Zhuang Zhenye, Mou Xinkan et al., 1996. The Control Research of Quaternary Sedimentary Stratum and Salt Water and Sea Water Intrusion on the South Plain of Laizhou Bay. Jinan: Shandong Science and Technology Press, 53–61. (in Chinese)
Xu Xin, He Caihua, Shen Zhida et al., 1992. Research Methods of Quaternary Environment. Guiyang: Guizhou Science Press, 185–192. (in Chinese)
Xue Yuqun, Wu Jichun, Xie Chunhong et al., 1997. The research on seawater intrusion and salt water intrusion in the coast of Laizhou Bay. Chinese Science Bulletin, 42(22): 2360–2368. (in Chinese)
Zhang Zulu, 1995. Loess mounds on the Laizhou Bay plain south of Bohai Sea and their paleogeographic implication. Acta Geographica Sinica, 50(5): 464–470. (in Chinese)
Zhao Desan, Yin Zesheng, Zhang Zulu et al., 1992. The Coastal Region Environment and Disaster of Shandong Province. Beijing: Science Press, 40–48. (in Chinese)
Zhao Songling, Yang Guangfu, Cang Shuxi et al., 1978. The issue about marine stratum and coastline in the west coast of Bohai Bay. Oceanologia et Limnologia Sinica, (1): 15–24. (in Chinese)
Zhao Songling, Yu Hongjun, 1996. Shelf desertization environment in the Bohai and Yellow seas during the last Epipleistocene. Quaternary Research, (1): 42–45. (in Chinese)
Zhou X, Chen M, Ju X et al., 2000. Numerial simulation of seawater intrusion near Beihai. Environmental Geology, 40: 223–233.
Zhuang Zhenye, Li Jianhua, Chou Shihua et al., 1987. Holocene transgression and its layers in the east coast of Laizhou Gulf, Bohai. Transactions of Oceanology and Limnology, (2): 31–38. (in Chinese)
Zhuang Zhenye, Liu Dongyan, Yang Ming et al., 1999. The role of anthropogenic activities in the evolution of saline water intrusion processes. Journal of Ocean University of Qingdao, 29(1): 141–147. (in Chinese)
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Foundation: National Natural Science Foundation of China, No.40471122
Author: Zhang Zulu (1949–), Professor, specialized in environmental geoscience and environmental change.
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Zhang, Z., Liu, E., Zhang, Y. et al. Environmental evolution in the salt-water intrusion area south of Laizhou Bay since late Pleistocene. J. Geogr. Sci. 18, 37–45 (2008). https://doi.org/10.1007/s11442-008-0037-1
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DOI: https://doi.org/10.1007/s11442-008-0037-1