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Surface Sediments in the Marsh-Sandy Land Transitional Area: Sandification in the Western Songnen Plain, China
Yu, XF (Yu, Xiaofei)[ 1 ]; Grace, M (Grace, Michael)[ 2,3 ]; Zou, YC (Zou, Yuanchun)[ 1 ]; Yu, XF (Yu, Xuefeng)[ 4 ]; Lu, XG (Lu, Xianguo)[ 1 ]; Wang, GP (Wang, Guoping)[ 1 ]
2014-06-16
发表期刊PLOS ONE
卷号9期号:6页码:e99715
文章类型期刊论文
摘要

The development of sandification process was studied, by monitoring the changes of sediment characteristics, at marsh-sandy land intersections in China's Songnen region. A series of sediment collection plates were deployed in the region; after one year, sediments in these plates were analyzed for changes of mass and chemical characteristics. The sediment flux and the sand content of the sediments decreased with the increasing longitudinal distance between the sampling site and the centre line of a sand dune. The mean sediment flux was 29 +/- 14 kg m(-2) yr(-1) and 0.6 +/- 0.3 kg m(-2) yr(-1) in the sandy land and marsh, respectively. Strong, positive correlations were found between the concentrations of organic matter, total nitrogen, P, Fe, Ti, V and Zr, all of which were also negatively correlated with the sand content. The concentrations of organic matter, total nitrogen, P, Fe, Ti, V and Zr in the marsh sediment samples were all significantly greater than the corresponding concentrations of the sandy land (p<0.001). Sand content and Ti, V and Zr concentrations all proved to be valid indicators of sandification intensity, and they showed that the marsh could be divided into three distinct zones. Sand expansion extended about 88 m into the marsh. The mean sand content in the sediments of the sandy land was 91% and then 64% in the marsh, which in turn was higher than that of marshes outside the influence of sandification, suggesting that the marsh in the marsh-sandy land transitional area has already undergone extensive sandification in the past. The study results provide information on the wetland's function of indicating and buffering the sandification process.

DOI10.1371/journal.pone.0099715
收录类别SCIE
语种英语
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9842
专题加速器质谱中心
通讯作者Wang, GP (Wang, Guoping)[ 1 ]
作者单位1.Key Lab of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China;
2.Water StudiesCentre and School of Chemistry, Monash University, Clayton, VIC, Australia;
3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment,Chinese Academy of Sciences, Xi’an, China
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GB/T 7714
Yu, XF ,Grace, M ,Zou, YC ,et al. Surface Sediments in the Marsh-Sandy Land Transitional Area: Sandification in the Western Songnen Plain, China[J]. PLOS ONE,2014,9(6):e99715.
APA Yu, XF ,Grace, M ,Zou, YC ,Yu, XF ,Lu, XG ,&Wang, GP .(2014).Surface Sediments in the Marsh-Sandy Land Transitional Area: Sandification in the Western Songnen Plain, China.PLOS ONE,9(6),e99715.
MLA Yu, XF ,et al."Surface Sediments in the Marsh-Sandy Land Transitional Area: Sandification in the Western Songnen Plain, China".PLOS ONE 9.6(2014):e99715.
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