The parameters of target samples as criterion to research environmental evolution in bay:as the case of Qianhu Bay, Fujian Province

Yu Mingtong; Liu Xiuming; Yang Huawei; Cao Hongwei; Tang Rongjun; Liu Wei; Gong Zhengquan; Chen Youxi; Chen Ying; Sun Qiaohong; Guo Jie

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Article Navigation > Haiyang Xuebao > 2015 > 37(9): 106-112

Yu Mingtong, Liu Xiuming, Yang Huawei, Cao Hongwei, Tang Rongjun, Liu Wei, Gong Zhengquan, Chen Youxi, Chen Ying, Sun Qiaohong, Guo Jie. The parameters of target samples as criterion to research environmental evolution in bay:as the case of Qianhu Bay, Fujian Province[J]. Haiyang Xuebao, 2015, 37(9): 106-112.

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The parameters of target samples as criterion to research environmental evolution in bay:as the case of Qianhu Bay, Fujian Province

1.
College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China;State Key Laboratory of Subtropical Mountain Ecology, Fujian Normal University, Fuzhou 350007, China
2.
College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China

Received Date: 2014-12-12
Rev Recd Date: 2015-03-16

Abstract

Abstract

133 high density sediment samples were collected from Qianhu Bay coastal section to analyze their grain size which showed a variety of the frequency curves indicated the changes of sedimentary environment. Some samples of beach,shallow,estuary,seamarsh and dunes around the section were also collected to analyze grain size. Their parameters of mean particle size (Mz),the standard deviation (σ),kurtosis (Kg) were set as criterion to calculate the minimum distance between the section samples and the criterion samples. Samples with minimum distance were classified to the similar of criterion sample so that to known their paleo-environment. We use this method to analyze 133 coastal samples and known their environmental evolution from estuaries shallow,estuaries,dunes,seamarsh to beach. The silt sample under the bottom of the coastal section was dating of ¹⁴ C=(32 815±170)a BP and known the ages of environmental changes of Qianhu Bay. Referring the sealevel changes in Fujian coastal during that time we know it was climate and sealevel changes that cause the environmental changes in Qianhu Bay.
- criterion sample parameter,
- minimum distance,
- sedimentary environment discriminant

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References

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