Wetland drying indirectly influences plant community and seed bank diversity through soil pH

doi:10.1016/j.ecolind.2017.05.027

	Wetland drying indirectly influences plant community and seed bank diversity through soil pH
	Du, Guozhen 5; Ma, Zhen 1,5; Yu, Kailiang 2; Baskin, Carol C.3,4; Ma, Miaojun 5
刊名	ECOLOGICAL INDICATORS
	2017-09-01
卷号	80 页码:186-195
关键词	Alpine Wetlands Seed Bank Soil-environmental Factor Soil Moisture Wetland Restoration
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2017.05.027
文献子类	Article
英文摘要	High altitude wetlands on the Tibetan Plateau have been shrinking due to anthropogenic disturbances and global climate change. However, the few studies that have been conducted on wetlands are inconclusive about the effect of soil moisture on seed banks and potential of seed banks in wetlands with different levels of soil moisture for regeneration of dried wetlands. We investigated seed banks and plant communities along a soil moisture gradient. A structural equation model was used to analyze the direct and indirect effects of soil moisture on seed banks, as well as the relationship between plant communities and seed banks. Although soil moisture had no direct effects on seed bank richness and density and indirect effects on seed banks through plant community, it had indirect effects on the seed bank through soil pH. Soil moisture also did not have direct effects on plant community richness, but it had indirect effects through soil pH. Plant community composition changed with soil moisture, but aboveground plant abundance and seed banks composition did not change. Low similarity exists between plant community and seed banks for all wetlands, and similarity decreased along the moisture gradient. The key factor determining plant community diversity was soil pH, while seed bank diversity was mainly affected by soil pH and plant community diversity with wetland drying. Although potential for regenerating the plant community from the seed bank decreased with an increase in soil moisture, drained wetlands still have enough residual seeds for successful restoration of species-rich alpine meadows.
WOS关键词	WATER-LEVEL FLUCTUATIONS ; TIBETAN PLATEAU ; SUCCESSIONAL GRADIENT ; AQUATIC VEGETATION ; GROUNDWATER LEVEL ; NORTHERN WETLANDS ; ALPINE MEADOW ; GERMINATION ; NITROGEN ; CARBON
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000406436100019
资助机构	National Natural Science Foundation of China(41671246) ; Fundamental Research Funds for the Central Universities(lzujbky-2015-k15)
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/9787]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
通讯作者	Ma, Miaojun
作者单位	1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China 2.Univ Virginia, Dept Environm Sci, Charlottesville, VA 22904 USA 3.Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA 4.Univ Kentucky, Dept Biol, Lexington, KY 40506 USA 5.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland & Agroecosyst, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Du, Guozhen,Ma, Zhen,Yu, Kailiang,et al. Wetland drying indirectly influences plant community and seed bank diversity through soil pH[J]. ECOLOGICAL INDICATORS,2017,80:186-195.
APA	Du, Guozhen,Ma, Zhen,Yu, Kailiang,Baskin, Carol C.,&Ma, Miaojun.(2017).Wetland drying indirectly influences plant community and seed bank diversity through soil pH.ECOLOGICAL INDICATORS,80,186-195.
MLA	Du, Guozhen,et al."Wetland drying indirectly influences plant community and seed bank diversity through soil pH".ECOLOGICAL INDICATORS 80(2017):186-195.