干旱区生态环境知识资源中心(Arid): Effects of increased precipitation on the life history of spring- and autumn-germinated plants of the cold desert annual Erodium oxyrhynchum (Geraniaceae)

Arid

DOI	10.1093/aobpla/plz004
	Effects of increased precipitation on the life history of spring- and autumn-germinated plants of the cold desert annual Erodium oxyrhynchum (Geraniaceae)
	Chen, Yanfeng 1,2; Shi, Xiang 3; Zhang, Lingwei 4; Baskin, Jerry M.5; Baskin, Carol C.5,6; Liu, Huiliang 1,7; Zhang, Daoyuan 1,8
通讯作者	Liu, Huiliang
来源期刊	AOB PLANTS
ISSN	2041-2851
出版年	2019
卷号	11 期号:2
英文摘要	Future increased precipitation in cold desert ecosystems may impact annual/ephemeral plant species that germinate in both spring and autumn. Our primary aim was to compare the life history characteristics of plants from spring-germinating (SG) and autumn-germinating (AG) seeds of Erodium oxyrhynchum. Plants in field plots with simulated increases in precipitation of 0, 30 and 50 % in spring and summer were monitored to determine seedling survival, phenology, plant size, seed production and biomass accumulation and allocation. Germination characteristics were determined in the laboratory for seeds produced by plants in all increased precipitation treatments. Increased precipitation in spring significantly improved survival of seedlings from SG and AG seeds, but survival was less for AG than SG. An increase in precipitation increased the number of seeds per plant for both SG and AG, but AG produced more seeds per plant than SG. With increased precipitation, percentage of dormant seeds from SG increased significantly, while that of AG decreased slightly. Our study suggests that with increased spring and summer rainfall AG will produce an increased number of nondormant seeds that could germinate in autumn and SG an increased number of dormant seeds that become part of the soil seed bank. However, ability of some seeds to germinate in autumn and others in spring will be maintained as long as soil moisture is limited in autumn. Increased precipitation prolonged the life cycle of spring and autumn germinated plants, increased dry mass accumulation and seed production, increased the proportion of biomass allocated to stems and leaves and decreased the proportion of reproduction and roots. In the context of climate change, the increase of biomass and seed production in spring and autumn germinated plants enhances the overall competitive advantage of Erodium oxyrhynchum in the plant community, assuming that other species respond less positively than Erodium oxyrhynchum.
英文关键词	Climate change cold desert ephemeral (annual) plant life history Erodium oxyrhynchum increased precipitation
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	Green Submitted, gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000469436900001
WOS关键词	GURBANTUNGGUT DESERT ; SOIL MICROBES ; SEED DORMANCY ; GROWTH ; WATER ; RESPONSES ; NITROGEN ; ALLOCATION ; PATTERNS ; TRAITS
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214217
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi 830011, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Shihezi Univ, Coll Agr, Shihezi 832000, Peoples R China; 4.Xinjiang Agr Univ, Xinjiang Key Lab Soil & Plant Ecol Proc, Coll Grassland & Environm Sci, Urumqi 830052, Peoples R China; 5.Univ Kentucky, Dept Biol, Lexington, KY 40506 USA; 6.Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA; 7.Xinjiang Inst Ecol & Geog, Yili Bot Garden, Xinyuan 835800, Peoples R China; 8.Chinese Acad Sci, Turpan Eremophytes Bot Garden, Turpan 838008, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yanfeng,Shi, Xiang,Zhang, Lingwei,et al. Effects of increased precipitation on the life history of spring- and autumn-germinated plants of the cold desert annual Erodium oxyrhynchum (Geraniaceae)[J]. 中国科学院新疆生态与地理研究所,2019,11(2).
APA	Chen, Yanfeng.,Shi, Xiang.,Zhang, Lingwei.,Baskin, Jerry M..,Baskin, Carol C..,...&Zhang, Daoyuan.(2019).Effects of increased precipitation on the life history of spring- and autumn-germinated plants of the cold desert annual Erodium oxyrhynchum (Geraniaceae).AOB PLANTS,11(2).
MLA	Chen, Yanfeng,et al."Effects of increased precipitation on the life history of spring- and autumn-germinated plants of the cold desert annual Erodium oxyrhynchum (Geraniaceae)".AOB PLANTS 11.2(2019).