火因子对松嫩羊草草原植物多样性的影响  

EFFECTS OF FIRE FACTORS ON PLANT DIVERSITY OF SONGNEN ANEUROLEPIDIUM CHINENSIS GRASSLAND

作　　者：李晓波[1] 周道玮[1] 姜世成[1] 

机构地区：[1]东北师范大学国家草地生态工程实验室

出　　处：《草业科学》1997年第4期56-59,64,共5页Pratacultural Science

摘　　要：应用三种丰富度指数，四种多样性指数，五种均匀度指数，进行了不同火因子对羊草草原植物多样性影响的研究。结果得出，灰分刺激与去枯作用明显提高了物种均匀度，加热作用则提高了物种丰富度，火烧的综合作用使得物种多样性显著增加。辛普森多样性指数计算的结果与其他指数的结果截然相反，不适于在此种情况下应用。This paper studied the effects of different fire factors on the plant diversity in Aneurolepidium chinensis grassland with three richness indices, four diversity indices and five eveness indices. The results showed that ash incentive and removing litter apparently increased species eveness, heating increased species richeness and comprehensive actions of burnings significantly raised species diversity. As far as the calculating result was concerned, Simpson index had all difference with the other index so that it was not suitable to this case.

关 键 词：火因子 丰富度 植物多样性 松嫩羊草草原 

分 类 号：S812.3[农业科学—草业科学]