干旱区生态环境知识资源中心(Arid): A study of soil seed banks across one complete chronosequence of secondary succession in a karst landscape

Arid

DOI	10.7717/peerj.10226
	A study of soil seed banks across one complete chronosequence of secondary succession in a karst landscape
	He, Xiaole; Yuan, Li; Wang, Zhen Hong; Zhou, Zizong; Wan, Li
通讯作者	Wang, ZH
来源期刊	PEERJ
ISSN	2167-8359
出版年	2020
卷号	8
英文摘要	Anthropogenic disturbance and distinctive geochemistry have resulted in rocky desertification in many karst regions of the world. Seed banks are crucial to vegetation regeneration in degraded karst ecosystems characterized by a discontinuous distribution of soil and seasonal drought stress. However, the dynamics of seed banks across one complete series of secondary succession and the underlying mechanisms remain unclear. We selected eight typical stages during secondary succession, conducted aboveground vegetation survey and collected 960 soil samples in the Guiyang karst landscape of China. Seed density, species richness and plant life forms in seed banks were determined via the germination method. The results indicated that the seed density in seed banks before and after field seed germination was significantly different among most succession stages. Community succession had impacts on the seed density of seed banks before and after field seed germination. Seed density ranged from 1,042 seedlings.m(-2) in evergreen broadleaf forests to 3,755 seedlings.m(-2) in the herb community, which was a relatively high density. The seed density and similar species composition between the seed banks and vegetation declined with succession from early to later stages. Species richness in seed banks was highest in middle succession stages and increased with increasing species richness of aboveground vegetation. The species richness of the five life forms in the seed banks showed different variations across these succession stages. The conservation of diverse aboveground vegetation can maintain the diversity of seed banks for restoration.
英文关键词	Karst Soil seed bank Community succession Plant diversity Ecosystem functions
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000579332800006
WOS关键词	SEASONAL-VARIATION ; VEGETATION ; FOREST ; BIODIVERSITY ; REGENERATION ; RESTORATION ; PERSISTENCE ; SOUTHWEST ; TRANSIENT ; DYNAMICS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326838
作者单位	[He, Xiaole; Wang, Zhen Hong] Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian, Shanxi, Peoples R China; [He, Xiaole; Wang, Zhen Hong] Changan Univ, Sch Water & Environm, Xian, Shanxi, Peoples R China; [Yuan, Li; Zhou, Zizong] Guizhou Univ, Coll Life Sci, Guiyang, Guizhou, Peoples R China; [Wan, Li] China Natl Inst Standardizat, Beijing, Peoples R China
推荐引用方式 GB/T 7714	He, Xiaole,Yuan, Li,Wang, Zhen Hong,et al. A study of soil seed banks across one complete chronosequence of secondary succession in a karst landscape[J],2020,8.
APA	He, Xiaole,Yuan, Li,Wang, Zhen Hong,Zhou, Zizong,&Wan, Li.(2020).A study of soil seed banks across one complete chronosequence of secondary succession in a karst landscape.PEERJ,8.
MLA	He, Xiaole,et al."A study of soil seed banks across one complete chronosequence of secondary succession in a karst landscape".PEERJ 8(2020).