机构地区: 内蒙古农业大学生态环境学院
出 处: 《内蒙古农业大学学报(自然科学版)》 2009年第3期95-98,共4页
摘 要: 本文采用空间序列演替的方法对乌鞘岭林场的不同补播草地和山地草甸草原的生活型以及物种多样性进行研究,结果表明,在5种草地类型中,山地草甸草原的总密度最大,总盖度最小,以苜蓿+披碱草-无芒雀麦为优势种的补播草地总密度最小,总盖度最大,植物种类数最多;山地草甸草原中只存在多年生草本植物,而其他植被类型中出现了一年生或越年生草本;以苜蓿+披碱草-无芒雀麦为优势种的补播草地的Shanoon指数、Pielou指数、Simpson指数在5种植被类型中最大。 In the paper,the method of analysis on spatial series of Plant diversity was used on different reseeding grassland and mountain meadow grassland's life-form and species diversity in Wuqiaoling forest.The results showed in the five grasslands,mountain meadow grassland's total density was the highest and total coverage was the smallest.The reseeding grassland's total density was the smallest and total coverage was the highest whose dominant species were Purple medic+ Elymus dahuricus-Bromus inermis and it had the most species.Mountain meadow grassland had perennial herbs only,but other vegetations had annual or hibernating plants.The grassland dominated by Purple medic,Elymus dahuricus and Bromus inermis had the highest Shannon index,Pielou index and Simpson index among all five grassland types.
领 域: [生物学]