植物研究2026，Vol.46Issue(2)：310-323,14.DOI:10.7525/j.issn.1673-5102.2026.02.010
新疆短生植物区系和生活史策略分异
Divergence in Floristics and Life-history Strategies of Ephemeral Plants in Xinjiang
摘要
Abstract
Ephemeral plants are a specialized group derived from arid flora and grow in flat desert regions.In China,they are primarily distributed in northern Xinjiang,while the overall distribution status in southern Xinjiang remains unclear.Moreover,it is currently unknown whether ephemeral plants exist in alpine environment.Combined the field surveys with literature review,the species composition and geographical elements and life-form types of ephemeral plants in northern Xinjiang,southern Xinjiang(including the Pamir Plateau within China)were analyzed respectively,and their origins and life-history strategy differentiation were explored.The results showed that:(1)There were 18 families,42 genera and 51 species ephemeral plants in southern Xinjiang;the Pamir Plateau within China had 16 families,31 genera and 36 species ephemeral plants,which served as a"micro-refugium".(2)The proportion of oligotypic families,monotypic families,oligotypic genera and monotypic genera in Xinjiang was high,and Brassicaceae was the dominant family.(3)The ephemeral plants in Xinjiang were predominantly temperate ones,with a high proportion of annual and perennial life forms.The proportion of annual plants in alpine environments increased,which highlighted the constraining effect of ecological conservation on the evolution of ephemeral plants.In summary,the ephemeral flora of northern and southern Xinjiang showed significant convergence in terms of family and genus composition,geographical elements and life-form spectrum,the Pamir Plateau within China served as a"micro-refugium"for ephemeral plants,and their ecological conservation subjected them to considerable evolutionary pressure.关键词
短生长期/种类组成/地理成分/生活型/生活史策略Key words
short growth period/species composition/geographical elements/life form/life-history strategy分类
农业科技引用本文复制引用
张凯,杨晓东,米尔卡米力·麦麦提,张月娟,艾沙江·阿不都沙拉木..新疆短生植物区系和生活史策略分异[J].植物研究,2026,46(2):310-323,14.基金项目
国家自然科学基金地区科学基金项目(32460261) （32460261）
喀什大学高层次人才科研启动经费项目(GCC2020ZK-002) （GCC2020ZK-002）
喀什大学校级科研项目(重点项目(2025)2949) （重点项目(2025）
新疆维吾尔自治区天池计划"百名青年博士引进计划"项目. （）
