库布齐沙地人工生物结皮区植被恢复状况

目的]调查库布齐沙地人工生物结皮区高等植被恢复状况,揭示人工生物结皮形成后高等植被群落演替过程。方法]采用样方法对不同接种年份的人工生物结皮区高等植被的种类、数量、盖度进行系统全面的调查。结果]共发现42种高等植物,分属于31属10科,优势种为油蒿、沙蓬、绳虫实、猪毛蒿、羊草、披碱草。随着人工生物结皮发育演替时间的延长,高等植被的种类、数量、盖度、生物量、物种多样性和均匀度也逐渐增大。结论]在人工结皮区,高等植被群落的演替顺序为油蒿、沙蓬、猪毛蒿、羊草群落。

Study on Vegetation Restoration at Manmade Biological Soil Crusts Areas in Kubuqi Desert

Objective]By investigating vegetation restoration at manmade biological soil crusts areas in Kubuqi Desert,succession process of vegetation was revealed.Method]Based on the survey of community plots,species,biomass and coverage of vegetation were investigated within different inoculation of manmade biological crusts areas.Result] 42 species vascular plants(belonging to 31 genera and 10 families,respectively)were found,and the dominant species were Artemisia ordosica,Agriophyllum squarrosum,Corispermum declinatu,Artemisia scoparia,Leymus chinensis,and Elymus dahuricus.Along with succession of manmade biological soil crusts,there were increases in vascular vegetations' species,abundances,coverages,biomass,species diversity and evenness.Conclusion]Moreover,successions order of vascular vegetations were Artemisia ordosica, Agriophyllum squarrosum, Artemisia scoparia, Leymus chinensis.