气候变化领域集成服务门户(CCPortal): Rainfall amount determines annual herb controls over soil seed bank and its similarity with vegetation in the Tengger Desert

CCPortal

DOI	10.1186/s13717-021-00346-w
	Rainfall amount determines annual herb controls over soil seed bank and its similarity with vegetation in the Tengger Desert
	Shi, Ya-Fei; Wang, Zeng-Ru; Xu, Bing-Xin; Huo, Jian-Qiang; Hu, Rui; Zhao, Yang; Zhang, Zhi-Shan
通讯作者	Zhao, Y ; Zhang, ZS (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2022
EISSN	2192-1709
卷号	11 期号:1
英文摘要	Background Soil seed banks may offer great potential for maintaining and restoring desert ecosystems that have been degraded by climate change and anthropogenic disturbance. However, few studies have explored the year-to-year dynamics in the species composition (richness and abundance) of these desert soil seed banks. Thus, we conducted a 4-year study to assess the effects of environmental factors (meteorology and microtopography) and aboveground vegetation on the soil seed bank of the Tengger Desert, China. Results We found the seed bank was dominated by annual herb species both in species richness and abundance. More rainfall in the growing season increased the number of seeds in the soil seed bank, and quadrat micro-elevation had a negative effect on soil seed bank size. The species composition in the seed bank had significantly larger between-year similarity than that in the aboveground vegetation due to the dominance of annual herb species. For different life forms, the species composition of annual herbs showed distinctly larger temporal similarity between the aboveground vegetation and the seed bank compared with perennial herbs and shrubs. Conclusions Our findings highlight that the combined effects of environmental factors and plant life forms determine the species composition (especially the abundance) of soil seed banks in deserts. However, if degraded desert ecosystems are left to regenerate naturally, the lack of shrub and perennial herb seeds could crucially limit their restoration. Human intervention and management may have to be applied to enhance the seed abundance of perennial lifeforms in degraded deserts.
关键词	PLANT-COMMUNITIES GERMINATION DORMANCY RESTORATION GRASSLAND DISPERSAL CRUSTS REGENERATION TEMPERATURE TOPOGRAPHY
英文关键词	Desert ecosystem; Seed bank dynamics; Rainfall; Plant type; Vegetation regeneration; Annual herbs
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology ; Environmental Sciences
WOS记录号	WOS:000740584100001
来源期刊	ECOLOGICAL PROCESSES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254172
作者单位	[Shi, Ya-Fei; Xu, Bing-Xin; Huo, Jian-Qiang; Hu, Rui; Zhao, Yang; Zhang, Zhi-Shan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Gansu, Peoples R China; [Shi, Ya-Fei; Xu, Bing-Xin; Huo, Jian-Qiang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Zeng-Ru] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Minist Educ,Minist Agr & Rural Affairs,Key Lab Gr, Engn Res Ctr Grassland Ind,State Key Lab Grasslan, Lanzhou 730020, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Shi, Ya-Fei,Wang, Zeng-Ru,Xu, Bing-Xin,et al. Rainfall amount determines annual herb controls over soil seed bank and its similarity with vegetation in the Tengger Desert[J]. 中国科学院西北生态环境资源研究院,2022,11(1).
APA	Shi, Ya-Fei.,Wang, Zeng-Ru.,Xu, Bing-Xin.,Huo, Jian-Qiang.,Hu, Rui.,...&Zhang, Zhi-Shan.(2022).Rainfall amount determines annual herb controls over soil seed bank and its similarity with vegetation in the Tengger Desert.ECOLOGICAL PROCESSES,11(1).
MLA	Shi, Ya-Fei,et al."Rainfall amount determines annual herb controls over soil seed bank and its similarity with vegetation in the Tengger Desert".ECOLOGICAL PROCESSES 11.1(2022).