Soil seed bank and vegetation differences following channel diversion in the Yellow River Delta

doi:10.1016/j.scitotenv.2019.133600

	Soil seed bank and vegetation differences following channel diversion in the Yellow River Delta
	Guan B(管博)
发表期刊	Science of the Total Environment
ISSN	0048-9697
	2019
卷号	693 页码:133600
关键词	Soil seed bank Diversity Similarity Above-ground vegetation Perennial plants
研究领域	Environmental Sciences
DOI	10.1016/j.scitotenv.2019.133600
产权排序	[Guan, Bo; Chen, Min; Yang, Shanshan; Shang, Weitao; Han, Guangxuan] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Elsey-Quirk, Tracy] Louisiana State Univ, Coll Coast & Environm, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA; [Li, Yunzhao] Ludong Univ, Inst Adv Study Coastal Ecol, Yantai 264025, Peoples R China; [Tian, Xiaoyan] Jilin Jianzhu Univ, Sch Municipal & Environm Engn, Changchun 130118, Jilin, Peoples R China
通讯作者	Guan, Bo(bguan@yic.ac.cn) ; Han, Guangxuan(gxhan@yic.ac.cn)
作者部门	海岸带环境过程实验室
英文摘要	Vegetation plays a key role in influencing the morphodynamics of river deltas, yet channelization of most of the world's rivers limits delta movement and resulting vegetation patterns. Thus, our understanding of vegetation dynamics in newly formed and abandoned deltaic wetlands is still poor. The artificial channel diversion of the mouth of the Yellow River in 1996 created conditions that mimic a natural delta lobe shift by increasing freshwater, sediment, and nutrient supply to wetlands along the new Yellow River course (NYR) and allowing seawater encroachment in the abandoned Yellow River course (OYR). To examine the effects of this river channel shift on the vegetation and seed bank structure, above-ground vegetation and seed bank species richness and diversity were examined from the channel to the marsh interior in wetlands of both OYR and NYR. A total of 17 plant species were found growing across both sites, 9 species were in OYR and 16 species in NYR. Soil depth did not influence seed bank density in OYR, but the seed bank density in the 0-5 cm soil layer was significantly greater than in the 5-10 cm soil layer in NYR. Species diversity of the vegetation and soil seed bank was strongly influenced by soil salinity and hydrology, which varied along the gradient from seaside to river bank. There was a greater separation in species composition between seed bank and vegetation in the OYR than in the NYR. The findings suggest that channel diversion of the Yellow River Had a significant effect to the above-ground vegetation. However, the species richness and diversity of soil seed banks in the OYR was similar to that of the NYR, indicating that seed banks had a greater tolerance to external disturbance compared with vegetation. (C) 2019 Elsevier B.V. All rights reserved.
文章类型	Article
资助机构	Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA23050202] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41871091, U1806218] ; Project of National Key point Research and Invention Program of the "13th Five Year" period [2017YFC0505902]
收录类别	SCI
语种	英语
关键词[WOS]	COASTAL WETLAND ; WATER ; GERMINATION ; RESTORATION ; PERSISTENCE ; SALINITY ; DYNAMICS ; GROWTH ; CHINA ; DUNE
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000489694700108
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24136
专题	中国科学院海岸带环境过程与生态修复重点实验室
推荐引用方式 GB/T 7714	Guan B. Soil seed bank and vegetation differences following channel diversion in the Yellow River Delta[J]. Science of the Total Environment,2019,693:133600.
APA	Guan B.(2019).Soil seed bank and vegetation differences following channel diversion in the Yellow River Delta.Science of the Total Environment,693,133600.
MLA	Guan B."Soil seed bank and vegetation differences following channel diversion in the Yellow River Delta".Science of the Total Environment 693(2019):133600.