干旱区生态环境知识资源中心(Arid): Is Plant Life-History of Biseasonal Germination Consistent in Response to Extreme Precipitation?

Arid

DOI	10.3390/plants10081642
	Is Plant Life-History of Biseasonal Germination Consistent in Response to Extreme Precipitation?
	Chen, Yanfeng; Zhang, Hui; Zhang, Lingwei; Zhang, Lan; Cao, Qiumei; Liu, Huiliang; Zhang, Daoyuan
通讯作者	Liu, HL (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China. ; Liu, HL (corresponding author), Xinjiang Inst Ecol & Geog, Yili Bot Garden, Xinyuan 835800, Peoples R China.
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2021
卷号	10 期号:8
英文摘要	Future climate is projected to increase in the intensity and frequency of extreme precipitation events, and the resulting ecological consequences are often more serious than those of normal precipitation events. In particular, in desert ecosystems, due to the low frequency and strong fluctuation of extreme precipitation, the destructive consequences for desert plants caused by extreme precipitation have not received enough attention for some time. Based on statistics of extreme precipitation events (1965-2018) in the Gurbantunggut Desert, we investigated the effects of extreme precipitation (+0%, CK; +50%, W1; +100%, W2; +200%, W3; maintenance of field capacity, W4) on the plant life-history of the spring-germinated (SG) and autumn-germinated (AG) ephemeral plant Erodium oxyrhynchum by monitoring seedling emergence, survival, phenology, organ size, biomass accumulation, and allocation. The results showed that extreme precipitation caused about 2.5% seedling emergence of E. oxyrhynchum in autumn 2018 and 3.0% seedling emergence in early spring 2019, which means that most seeds may be stored in the soil or have died. Meanwhile, extreme precipitation significantly improved the survival, organ size, and biomass accumulation of SG and AG plants, and W3 was close to the precipitation threshold of SG (326.70 mm) and AG (560.10 mm) plants corresponding to the maximum individual biomass; thus, AG plants with a longer life cycle need more water for growth. Conversely, W4 caused AG plants to enter the leaf stage in advance and led to death in winter, which indicates that extreme precipitation may not be good for AG plants. Root and reproduction biomass allocation of SG and AG plants showed a significantly opposite trend under extreme precipitation treatments, which might be related to their different life-history strategies. Therefore, when only taking into account the changing trend of extreme precipitation from the Coupled Model Intercomparison Project 6 (CMIP6) climate projections data, we speculate that extreme precipitation may promote the growth of SG and AG plants from the beginning to the middle of this century, but extreme precipitation in autumn exceeding a certain threshold may adversely affect the survival of AG plants at the end of the century.
英文关键词	climate change ephemeral plant Erodium oxyrhynchum extreme precipitation plant growth
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:000690280300001
WOS关键词	PRODUCTIVITY RESPONSES ; EPHEMERAL PLANTS ; REGIMES ; DESERT ; NITROGEN ; GROWTH ; DYNAMICS ; PATTERNS ; IMPACTS ; TRAITS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
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/2XILL650/364357
作者单位	[Chen, Yanfeng; Zhang, Lan; Cao, Qiumei; Liu, Huiliang; Zhang, Daoyuan] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Chen, Yanfeng] Qufu Normal Univ, Dept Tourism Management, Sch Geog & Tourism, Rizhao 276826, Peoples R China; [Zhang, Hui] Shandong Water Polytech, Dept Informat Engn, Rizhao 276826, Peoples R China; [Zhang, Lingwei] Xinjiang Agr Univ, Coll Grassland & Environm Sci, Xinjiang Key Lab Soil & Plant Ecol Proc, Urumqi 830052, Peoples R China; [Zhang, Lan] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; [Liu, Huiliang] Xinjiang Inst Ecol & Geog, Yili Bot Garden, Xinyuan 835800, Peoples R China; [Zhang, Daoyuan] Chinese Acad Sci, Turpan Eremophytes Bot Garden, Turpan 838008, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yanfeng,Zhang, Hui,Zhang, Lingwei,et al. Is Plant Life-History of Biseasonal Germination Consistent in Response to Extreme Precipitation?[J]. 中国科学院新疆生态与地理研究所,2021,10(8).
APA	Chen, Yanfeng.,Zhang, Hui.,Zhang, Lingwei.,Zhang, Lan.,Cao, Qiumei.,...&Zhang, Daoyuan.(2021).Is Plant Life-History of Biseasonal Germination Consistent in Response to Extreme Precipitation?.PLANTS-BASEL,10(8).
MLA	Chen, Yanfeng,et al."Is Plant Life-History of Biseasonal Germination Consistent in Response to Extreme Precipitation?".PLANTS-BASEL 10.8(2021).