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兰州大学机构库  > 草地农业科技学院  > 期刊论文
题名: The determinants of seed germination in an alpine/subalpine community on the Eastern Qinghai-Tibetan Plateau
作者: Xu, J; Li, WL; Zhang, CH; Liu, W; Du, GZ
收录类别: SCIE
出版日期: 2017-01
刊名: ECOLOGICAL ENGINEERING
卷号: 98, 页码:114-122
出版者: ELSEVIER
出版地: AMSTERDAM
英文摘要: Variation in germination behavior in combination with environmental variability is thought to play an important role in promoting species coexistence within communities. In this study, we attempt to examine the relative importance of species attributes (e.g. phylogeny, life history, seed size, dispersal) and abiotic factors (e.g. temperature, habitat, altitude) on germination of 202 common species from an alpine/subalpine meadow on the eastern Qinghai-Tibetan Plateau. Mean germination percentage (GP) and mean germination time (GT) differed significantly among phylogenetic, life history, temperature treatment and habitat groups. Both mean GT and GP of annuals were lower than those of perennials. The adhesion-dispersed seeds had the highest mean GP and ant-dispersed seeds had the lowest mean GT. Seeds dispersed early had higher mean GP than those dispersed late. Seeds from south slope had relatively higher mean GP and lower mean GT than those from other habitats. Our results also suggested that temperature rise was likely to be beneficial for both earlier germination and higher germination percentage in alpine/subalpine meadow. Contrary to the hypothesis, species with a wide geographic distribution did not germinate preferentially under more various germination conditions. We conclude that temperature and phylogeny appear to be the most important factors in regulating germination in alpine/subalpine meadow on the eastern Qinghai-Tibetan Plateau. (C) 2016 Elsevier B.V. All rights reserved.
关键词: Alpine/subalpine meadow ; Phylogeny ; Seed germination ; Temperature rise ; Qinghai-Tibetan plateau
作者部门: [Xu, Jing] Lanzhou Univ Finance & Econ, Sch Agr & Forestry Econ & Management, Duanjiatan Rd 496, Lanzhou 730020, Peoples R China ; [Li, Wenlong] Lanzhou Univ, Sch Pastoral Agr Sci & Technol, State Key Lab Grassland & Agroecosyst, Jiayuguan West Rd 768, Lanzhou 730020, Peoples R China ; [Zhang, Chunhui] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China ; [Liu, Wei ; Du, Guozhen] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland & Agroecosyst, South Tianshui Rd 222, Lanzhou 730000, Peoples R China
通讯作者: Du, GZ (reprint author), Lanzhou Univ, Sch Life Sci, State Key Lab Grassland & Agroecosyst, South Tianshui Rd 222, Lanzhou 730000, Peoples R China.
学科分类: Environmental Sciences & Ecology; Engineering
文章类型: Article
所属项目编号: National Social Science Foundation of China [14CJY010] ; National Natural Science Foundation of China [41430749, 41171214, 31170430, 41471450] ; Science and Technology Planning Project of Gansu Province, China [1506RJYA053]
所属项目名称: 国家自然科学基金项目 ; 国家社会科学基金青年项目 ; 甘肃省青年科技基金计划
项目资助者: NSFC ; NSSFC ; GSSTD
语种: 英语
DOI: 10.1016/j.ecoleng.2016.10.070
ISSN号: 0925-8574
WOS记录号: WOS:000390454300015
IR记录号: WOS:000390454300015
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/188770
Appears in Collections:草地农业科技学院_期刊论文

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Recommended Citation:
Xu, J,Li, WL,Zhang, CH,et al. The determinants of seed germination in an alpine/subalpine community on the Eastern Qinghai-Tibetan Plateau[J]. ECOLOGICAL ENGINEERING,2017,98:114-122.
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