不同退化程度高寒草甸群落结构特征与经济类群产量相关性分析  

Correlation Analysis between Plants' Structure Characteristics and Economic Group Production of Alpine Meadow at Different Degradation Stages

作　　者：侯留飞[1] 唐俊伟[1] HOU Liu-fei;TANG Jun-wei(Grassland Station of Qinghai Province,Xining 810001,China)

机构地区：[1]青海省草原总站,青海西宁810001

出　　处：《草食家畜》2018年第1期1-3,10,共4页Grass-Feeding Livestock

摘　　要：为了解不同退化程度高寒草甸植物群落结构与经济类群产量间的相关性,以囊谦县高山嵩草型天然草地为例进行地面基况、经济类群产量的研究。结果表明,植被盖度、草层高度、鲜草产量等随着退化程度加剧逐渐降低,并且植被盖度、草层高度与可食草产量、鲜草总产量之间表现出极强的相关性,这说明群落结构特征随着高寒草甸的退化发生变化,并对天然草地经济类群产量产生影响。For study the correlation between plants’structure characteristics and economic?group?production of alpine meadow at different degradation stage,took Kobresia pygmaea pasture in Nangqian county for example,results showed that fractional vegetation cover、grass layer height、grassland forage yield、utilizable yield were reducing as the degradation degree intensifying,and correlation coefficient between them was big,it stated that structure characteristics was changing as alpine meadow degradating,and impacted on economic?group?yield of grassland.

关 键 词：高寒草甸 结构特征 经济类群产量 相关性分析 

分 类 号：S812.3[农业科学—草业科学]