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Effects of vegetation type on surface elevation change in Liaohe River Delta wetlands facing accelerated sea level rise
G. D. Wang, M. Wang, M. Jiang, X. G. Lyu, X. Y. He and H. T. Wu; Jiang M(姜明)
2017
发表期刊Chinese Geographical Science
卷号27期号:5页码:810-817
摘要Rising sea levels threaten the sustainability of coastal wetlands around the globe. The ability of coastal marshes to maintain their position in the intertidal zone depends on the accumulation of both organic and inorganic materials, and vegetation is important in these processes. To study the effects of vegetation type on surface elevation change, we measured surface accretion and elevation change from 2011 to 2016 using rod surface elevation table and feldspar marker horizon method (RSET-MH) in two Phragmites and two Suaeda marshes in the Liaohe River Delta. The Phragmites marshes exhibited higher rates of surface accretion and elevation change than the Suaeda marshes. The two Phragmites marsh sites had average surface elevation change rates at 8.78 mm/yr and 9.26 mm/yr and surface accretion rates at 17.56 mm/yr and 17.88 mm/yr, respectively. At the same time, the two Suaeda marsh sites had average surface elevation change rates at 5.77 mm/yr and 5.91 mm/yr and surface accretion rates at 13.42 mm/yr and 14.38 mm/yr, respectively. The elevation change rates in both the Phragmites marshes and the Suaeda marshes in the Liaohe River Delta could keep pace and even continue to gain elevation relative to averaged sea level rise in the Bohai Sea reported by the 2016 State Oceanic Administration, People's Republic of China projection (2.4-5.5 mm/yr) in current situations. Our data suggest that vegetation is important in the accretionary processes and vegetation type could regulate the wetland surface elevation. However, the vulnerability of coastal wetlands in the Liaohe River Delta need further assessment considering the accelerated sea level rise, the high rate of subsidence, and the declining sediment delivery, especially for the Suaeda marshes.
DOI10.1007/s11769-017-0909-3
WOS记录号WOS:000410024000012
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文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/7631
专题湿地与全球变化学科组
通讯作者Jiang M(姜明)
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GB/T 7714
G. D. Wang, M. Wang, M. Jiang, X. G. Lyu, X. Y. He and H. T. Wu,Jiang M. Effects of vegetation type on surface elevation change in Liaohe River Delta wetlands facing accelerated sea level rise[J]. Chinese Geographical Science,2017,27(5):810-817.
APA G. D. Wang, M. Wang, M. Jiang, X. G. Lyu, X. Y. He and H. T. Wu,&姜明.(2017).Effects of vegetation type on surface elevation change in Liaohe River Delta wetlands facing accelerated sea level rise.Chinese Geographical Science,27(5),810-817.
MLA G. D. Wang, M. Wang, M. Jiang, X. G. Lyu, X. Y. He and H. T. Wu,et al."Effects of vegetation type on surface elevation change in Liaohe River Delta wetlands facing accelerated sea level rise".Chinese Geographical Science 27.5(2017):810-817.
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