气候变化领域集成服务门户(CCPortal): Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow

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DOI	10.1016/j.agrformet.2017.08.034
	Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow
	Cui, Shujuan; Meng, Fandong; Ji Suonan; Qi Wang; Li, Bowen; Liu, Peipei; Renzeng, Wangmu; Lv, Wangwang; Jiang, Lili; Zhang, Lirong; Li, Xine; Li, Yaoming; Zhang, Zhenhua; Luo, Caiyun; Tsechoe, Dorji; Wang, Shiping
通讯作者	Wang, SP (通讯作者)
发表日期	2017
ISSN	0168-1923
EISSN	1873-2240
起始页码	376
结束页码	384
卷号	247
英文摘要	The distribution of annual plant species greatly expands with degradation and desertification of natural grass-lands caused by climate change and overgrazing. However, limited understanding of how their life history traits respond to climate change limits our ability to predict their adaptive strategies in the future. Here we explored effects of warming on phenological sequences and seed production of annual Koenigia islandica using an open top chamber on the Tibetan plateau from 2014 to 2016. Our results indicate that warming significantly delayed first budding-set and complete leaf coloring, and prolonged the durations of leaf coloring and the total activity period in the alpine region. Warming significantly reduced ratio of reproductive and vegetative phases relative to no warming in 2016. Warming significantly increased plant height at first flowering, seed number and mass, but had no significant effect on seed size in 2016. There was a positive correlation between seed germination time and seed number, and there were negative correlations between seed size and first fruiting-set and flowering duration. Soil temperatures and soil moisture in May and June had positive and negative correlations with seed number and mass per plant, respectively. Our results suggest that the annual plant primarily promotes its fitness through an increase in seed number and mass per plant due to an increase in plant height, rather than by altering phenophases or prolong duration of reproductive phase under future warming in the alpine meadow.
关键词	FLORAL LONGEVITY FLOWERING TIME PLANT TEMPERATURE GERMINATION AVAILABILITY SENSITIVITY SEQUENCES COMMUNITY PATTERNS
英文关键词	Annual plant species; Phenological sequences; Seed number; Seed mass; Seed size; Alpine meadow; Tibetan plateau
语种	英语
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000416186700035
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258976
推荐引用方式 GB/T 7714	Cui, Shujuan,Meng, Fandong,Ji Suonan,et al. Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow[J]. 中国科学院青藏高原研究所,2017,247.
APA	Cui, Shujuan.,Meng, Fandong.,Ji Suonan.,Qi Wang.,Li, Bowen.,...&Wang, Shiping.(2017).Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow.AGRICULTURAL AND FOREST METEOROLOGY,247.
MLA	Cui, Shujuan,et al."Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow".AGRICULTURAL AND FOREST METEOROLOGY 247(2017).