Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow

doi:10.1016/j.agrformet2017.08.034

	Responses of phenology and seed production of annual Koenigia islandica to warming in a desertified alpine meadow
	Cui, Shujuan 1,6; Meng, Fandong 1; Ji Suonan 1; Qi Wang 1,6; Li, Bowen 1,6; Liu, Peipei 1,6; Renzeng, Wangmu 1,6; Lv, Wangwang 1,6; Jiang, Lili 1; Zhang, Lirong 1
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2017-12-15
卷号	247 页码:376-384
关键词	Annual Plant Species Phenological Sequences Seed Number Seed Mass Seed Size Alpine Meadow Tibetan Plateau
DOI	10.1016/j.agrformet2017.08.034
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.
语种	英语
WOS记录号	WOS:000416186700035
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/13274]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Tibet Univ, Naqu Integrated Observat & Res Stn Ecol & Environ, Lasa 850012, Peoples R China 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Lasa 850012, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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]. AGRICULTURAL AND FOREST METEOROLOGY,2017,247:376-384.
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,247,376-384.
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):376-384.