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Formation of Plant Communities of the Newly Created Wetland in Modern Yellow River Delta

文献类型： 外文期刊

作者： Xiang, Jun 1 ; Wang, Qingfang 3 ; Wu, Geng 1 ; Wu, Yongquan 1 ; Han, Peng 1 ; Li, Maoteng 1 ; Yu, Longjiang 1 ;

作者机构： 1.Huazhong Univ Sci & Technol, Inst Resource Biol & Biotechnol, Coll Life Sci & Technol, Wuhan 430074, Peoples R China

2.Huanggang Normal Univ, Coll Life Sci & Engn, Huangzhou 438000, Peoples R China

3.Hubei Acad Agr Sci, Econom Crop Res Inst, Wuhan 430074, Peoples R China

关键词： Yellow River Delta;wetland;germination;salinity;plant communities

期刊名称：INTERNATIONAL CONFERENCE ON ECOLOGICAL INFORMATICS AND ECOSYSTEM CONSERVATION (ISEIS 2010)

ISSN： 1878-0296

年卷期： 2010 年 2 卷

页码：

收录情况： SCI

摘要： To explore the cause of plant vegetation distributed on the newly created wetland in estuary of modern Yellow River Delta, we took field-based observation of the wetland plant diversity of the Yellow River Delta, Shandong, China. Based on the results of field investigation, we studied the effects of salinity on germination characteristics of four dominant species in wetland of Yellow River Delta, i.e. Suaeda salsa, Apocynum venetum, Phragmites australis and Typha orientalis. The germination conditions of the four dominant emerging plants at 0, 50, 100, 150, 200, 250 and 300 mM NaCl were studied, the results indicated that all species had a trend of decreased germination percentage and rate of germination with the increase of salinity levels, but the inhibitory effect of salinity on the germination percentage of each was different. S. salsa and A. venetum had higher tolerance of salinity than P. australis and T. orientalis. Germination percentage and germination rate of seeds of the four species were significantly affected by salinity. In conclusion, the results of seeds germination of the four dominant species in the newly created wetland were accorded with the results of field investigation of plant community distribution along the gradients of environmental salinity, and salinity is one of the most pivotal factors limited the distribution of the plant vegetation in the newly created wetland of Yellow River Delta. (C) 2010 Published by Elsevier Ltd.

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