干旱区生态环境知识资源中心(Arid): Life history responses of spring-and autumn-germinated ephemeral plants to increased nitrogen and precipitation in the Gurbantunggut Desert

Arid

DOI	10.1016/j.scitotenv.2018.12.368
	Life history responses of spring-and autumn-germinated ephemeral plants to increased nitrogen and precipitation in the Gurbantunggut Desert
	Chen, Yanfeng 1,2; Zhang, Lingwei 3; Shi, Xiang 4; Ban, Ying 1; Liu, Huiliang 1,5; Zhang, Daoyuan 1,6
通讯作者	Liu, Huiliang
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	659 页码:756-763
英文摘要	Nitrogen deposition and precipitation change are not only hot topics of current global change but also the main environmental factors affecting plant growth. Thus, the effects of nitrogen and precipitation on the life history of spring-(SG) and autumn-germinated (AG) ephemeral plants of Erodium oxyrhynchum were researched in the Gurbantunggut Desert, northern China, and the aim was to understand the response of plants from different germination seasons to global change. SG and AG plants with increased nitrogen and precipitation plus nitrogen treatments were measured to determine seedling survival, phenology, plant traits, biomass accumulation and allocation and dormancy characteristics of offspring (seeds). The results showed that increased nitrogen and precipitation plus nitrogen treatments significantly improved the survival of SG and AG plants during the seedling stage, and precipitation plus nitrogen treatments also improved the growth and seed production of SG and AG plants, but increased nitrogen significantly inhibited their growth and seed production. Therefore, precipitation plays an important role in regulating nitrogen uptake by plants in arid and semiarid ecosystems. With increased nitrogen, SG and AG plants allocated more biomass into root and reproductive organs but allocated significantly less biomass into the leaf, with almost no change in biomass allocation to the stem. With nitrogen plus precipitation treatments, biomass allocation in all organs of SG and AG plants showed almost no change. Clearly, changes in soil moisture also affected biomass allocation of SG and AG plants. For offspring dormancy, SG and AG plants produced more nondormancy seeds with increased nitrogen but produced more dormancy seeds under precipitation plus nitrogen treatments. Hence, in a harsh environment, SG and AG plants produced more nondormancy offspring with low reproduction in order to occupy the habitat rapidly in the following year or produced more dormancy offspring with high reproduction in a suitable environment intended for spreading germination risk in time and conserve the population. (c) 2019 Elsevier B.V. All rights reserved.
英文关键词	Cold desert Ephemeral plant Erodium oxyrhynchum Increased nitrogen Increased precipitation Climate change
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000457293700074
WOS关键词	COLD DESERT ; BIOMASS ALLOCATION ; USE EFFICIENCY ; SEED DORMANCY ; WATER ; GROWTH ; DEPOSITION ; PATTERNS ; COMPETITION ; PLASTICITY
WOS类目	Environmental Sciences
WOS研究方向	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/2XILL650/218655
作者单位	1.Chinese Acad Sci, Key Lab Biogeog & Bioresource Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Xinjiang Agr Univ, Coll Grassland & Environm Sci, Xinjiang Key Lab Soil & Plant Ecol Proc, Urumqi 830052, Peoples R China; 4.Shihezi Univ, Coll Agr, Shihezi 832000, Peoples R China; 5.Xinjiang Inst Ecol & Geog, Yili Bot Garden, Xinyuan 835800, Peoples R China; 6.Chinese Acad Sci, Turpan Eremophytes Bot Garden, Turpan 838008, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yanfeng,Zhang, Lingwei,Shi, Xiang,et al. Life history responses of spring-and autumn-germinated ephemeral plants to increased nitrogen and precipitation in the Gurbantunggut Desert[J]. 中国科学院新疆生态与地理研究所,2019,659:756-763.
APA	Chen, Yanfeng,Zhang, Lingwei,Shi, Xiang,Ban, Ying,Liu, Huiliang,&Zhang, Daoyuan.(2019).Life history responses of spring-and autumn-germinated ephemeral plants to increased nitrogen and precipitation in the Gurbantunggut Desert.SCIENCE OF THE TOTAL ENVIRONMENT,659,756-763.
MLA	Chen, Yanfeng,et al."Life history responses of spring-and autumn-germinated ephemeral plants to increased nitrogen and precipitation in the Gurbantunggut Desert".SCIENCE OF THE TOTAL ENVIRONMENT 659(2019):756-763.