荒漠草原矮小型针茅属建群的植物群落特征研究  

Plant Community Characteristics of Dwarf Stipa Communities in a Desert Steppe

作　　者：闫宝龙 吕世杰 古琛 韩国栋 YAN Baolong;LYU Shijie;GU Chen;HAN Guodong(Agricultural College,Inner Mongolia Minzu University,Tongliao 028300,China;Collage of Grassland,Resources and Environment,Key Laboratory of Grassland Resources of Ministry of Education,Key Laboratory of Forage Cultivation,Processing and High Efficient Utilization of Ministry of Agriculture,and Key Laboratory of Grassland Management and Utilization of Inner Mongolia Autonomous Region,Inner Mongolia Agricultural University,Hohhot 010011,China;School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古民族大学农学院,通辽028300 [2]内蒙古农业大学草原与资源环境学院/草地资源教育部重点实验室/农业农村部饲草栽培加工高效利用重点实验室/内蒙古自治区草地管理与利用重点实验室,呼和浩特010011 [3]内蒙古科技大学能源与环境学院,包头014010

出　　处：《内蒙古农业大学学报（自然科学版）》2023年第2期39-44,共6页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古民族大学博士科研启动基金项目(BS522);国家自然科学基金项目(31861143001);内蒙古自治区自然科学基金项目(2019LH03016,2021MS03042);内蒙古自治区科技成果转化项目(2019CG069);教育部草地资源可持续利用科技创新团队项目(IRT_17R59)。

摘　　要：为阐释荒漠草原不同矮小型针茅属为建群种的植物群落特征及其相互关系,本文以荒漠草原短花针茅(Stipa breviflo⁃ra)、小针茅(Stipa klemenzii)、沙生针茅(Stipa glareosa)和戈壁针茅(Stipa gobica)植物群落为研究对象,结合建群种、共有种及群落物种的重要值特征综合分析植物群落各成员型在群落中的地位和作用。结果表明:①4种矮小型针茅属植物的重要值具有显著差异(P<0.05),且小针茅≥戈壁针茅≥沙生针茅>短花针茅;②不同植物群落中共有种的重要值具有显著差异(P<0.05),在群落中无芒隐子草(Cleistogenes songorica)和银灰旋花(Convolvulus ammannii)的作用相对较大,而猪毛菜(Salsola collina)的作用相对较小;③4种矮小型针茅属植物在群落中重要值的排序均较靠前,小针茅在植物群落中的重要值最大。研究结果可为荒漠草原生态保护和可持续管理提供理论指导和数据支撑。In order to elucidate the plant community characteristics and relationships of different dwarf Stipa genus,the plant commu-nities of Stipa breviflora,Stipa klemenzii,Stipa glareosa and Stipa gobica in a desert steppe area were investigated,and the status and role of plant community members in the community were comprehensively analyzed combined with the important value characteristics of constructive species,common species,and community species.The results showed that,there were significant differences in the im-portance values of the four species(P<0.05),and Stipa klemenzii≥Stipa gobica≥Stipa glareosa>Stipa breviflora.The important values of common species in different plant communities were significantly different(P<0.05),the role of Cleistogenes songorica and Con⁃volvulus ammannii in the community was relatively large,while the role of Salsola collina was relatively small.The important values of the four species of dwarf Stipa were ranked higher in the community,and the important values of Stipa klemenzii were the largest.The results could provide theoretical guidance and data supports for ecological protection and sustainable management of desert steppe.

关 键 词：温性草原 建群种 共有种 群落演替 

分 类 号：Q145[生物学—生态学]