横断山区高寒草甸不同类型生物结皮对植物群落结构的影响  

Effects of Different Types of Biological Crusts on Plant Community Structure inAlpine Meadows in Hengduan Mountains

作　　者：李勋 程晓彬[2] 彭彬 张艳 宋思梦 周扬 LI Xun;CHENG Xiaobin;PENG Bin;ZHANG Yan;SONG Simeng;ZHOU Yang(Research Center for Ecological Restoration and Characteristic Industry Cultivation in Hengduan Mountains Region,Sichuan Minzu College,Kangding Sichuan 626001;Large Wild Fungi Research Center of Sichuan,Tibet,Yunnan and Qinghai,Sichuan Minzu College,Kangding Sichuan 626001)

机构地区：[1]四川民族学院横断山区生态修复与特色产业培育研究中心,四川康定626001 [2]四川民族学院川藏滇青大型野生真菌研究中心,四川康定626001

出　　处：《现代农业科技》2022年第11期133-136,139,共5页Modern Agricultural Science and Technology

基　　金：四川民族学院自办科研项目(XYZB2003ZA)。

摘　　要：本文以川西横断山区高寒草甸内分布的地衣结皮、藻类结皮以及苔藓结皮为研究对象,以无生物结皮的草地为对照组(CK),研究了不同类型生物结皮对植物群落结构的影响。结果表明,横断山区高寒草甸分布的生物结皮主要类型为苔藓结皮,说明该地区的生物结皮已发育到较为成熟的阶段;在藻类结皮向苔藓结皮发育过程中,横断山区高寒草甸植物种类不断增加,且随着莎草科植物所占比例下降,禾本科植物所占比例逐渐升高。In this paper,lichen crusts(LC),algae crusts(AC)and moss crusts(MC)distributed in alpine meadows in the Hengduan Mountains of western Sichuan Province were taken as the research objects,and grassland without biological crusts was used as the control group(CK),in order to study the effects of different types of biological crusts on the structure of plant communities.The results showed that the main type of biological crusts distributed in alpine meadows in the Hengduan Mountains was moss crusts(MC),and the biological crusts in this area had developed to a mature stage.During the development of algae crusts to moss crusts,the species of alpine meadow plants in the Hengduan Mountains continued to increase,and along with the decline in the proportion of Cyperaceae,the proportion of Poaceae gradually increased.

关 键 词：生物结皮 植物群落结构 高寒草甸 横断山区 

分 类 号：S812[农业科学—草业科学] Q948[农业科学—畜牧学]