干旱区生态环境知识资源中心(Arid): 宁夏贺兰山东麓荒漠草原区地衣的物种多样性研究

Arid

	宁夏贺兰山东麓荒漠草原区地衣的物种多样性研究
其他题名	Species Diversity of Lichens in the Desert Steppe at the Eastern Foot of Helan Mountain,Ningxia
	牛东玲; 田晓燕; 马茜; 石晶; 白明生
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2020
卷号	40 期号:11 页码:1972-1977
中文摘要	地衣是宁夏贺兰山东麓荒漠草原区一类重要的生物资源,地衣结皮的形成为该区域景观的稳定作出了重要的贡献。该研究于2014~2019年在贺兰山东麓荒漠草原区开展了地衣的野外调查,利用表型特征和DNA序列分析且对采集的500余份标本进行了物种的鉴定,并分析了其物种组成及地理成分。结果显示:(1) 共鉴定地衣19科41属74种,其中中国新记录25种,新种2个(待发表),新记录属11个,宁夏新记录56种。(2)研究区地衣物种区系地理成分以北温带成分为主(33.78%),其他主要区系成分包括欧亚成分和世界广布成分等,具有明显的北温带成分区系特征。(3)研究区地衣以壳状和鳞状地衣为主(8 1.1%),生长型体现了地衣对当地气候条件的适应特性。实地调查发现宁夏贺兰山东麓荒漠草原区地衣的生存环境非常脆弱。该研究结果有助于提高对该区域地衣物种多样性的认识并促进其保护。
英文摘要	Lichen is a kind of important biological resource of desert steppe at the eastern foot of Helan Mountain,Ningxia.The formation of the lichen crusts has made an important contribution to the stability of the regional landscape.The field investigation of lichens was carried out from 2014 to 2019 in the desert steppe of the eastern foot of Helan Mountain,and more than 500 speciemens were identified using phenotypic characteristics and DNA sequence analysis,both the species composition and biogeography were analyzed. The results showed that:(1)a total of 74 species belonging to 41 genera and 19 families were identified, with 2 taxa new to science(in press),25 taxa and 11 genera representing new records for China,and 56 taxa new records for Ningxia.(2)The most important bio-geographical element of lichen was north temperate element (33.78%),other main elements included Eurasian and cosmopolitan.The results showed that the area had a distinct north temperate character in floral composition.(3)Crustose and squamous lichens accounted for a high proportion(81.1%),which embodied the characteristics of the lichen species adapt to the local climate conditions.The field survey showed lichen habitats in the desert steppe of Ningxia Helan Mountain were very fragile.This study is helpful to improve the understanding of lichen species diversity and promote its conservation in the area.
中文关键词	地衣结皮 ; 新记录 ; 生物资源 ; 区系地理
英文关键词	lichen crust new records biological resources lichen biota and geography
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Plant Sciences
CSCD记录号	CSCD:6863104
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353924
作者单位	牛东玲, 宁夏大学生命科学学院, 银川, 宁夏 750021, 中国. 马茜, 宁夏大学生命科学学院, 银川, 宁夏 750021, 中国. 石晶, 宁夏大学生命科学学院, 银川, 宁夏 750021, 中国. 白明生, 宁夏大学生命科学学院, 银川, 宁夏 750021, 中国. 田晓燕, 宁夏大学化学化工学院, 银川, 宁夏 750021, 中国.
推荐引用方式 GB/T 7714	牛东玲,田晓燕,马茜,等. 宁夏贺兰山东麓荒漠草原区地衣的物种多样性研究[J]. 宁夏大学,2020,40(11):1972-1977.
APA	牛东玲,田晓燕,马茜,石晶,&白明生.(2020).宁夏贺兰山东麓荒漠草原区地衣的物种多样性研究.西北植物学报,40(11),1972-1977.
MLA	牛东玲,et al."宁夏贺兰山东麓荒漠草原区地衣的物种多样性研究".西北植物学报 40.11(2020):1972-1977.