不同放牧方式对克氏针茅草原植物群落物种间关联的影响分析——以中蒙边境两个苏木为例

doi:10.3969/j.issn.2096-1197.2019.02.16

Journal of Northern Agriculture ›› 2019, Vol. 47 ›› Issue (2): 91-96.doi: 10.3969/j.issn.2096-1197.2019.02.16

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Analysis of the effects of different grazing patterns on the inter-specific association of plant communities in Stipa krylovii steep --A case study of two townships at the China-Mongolia border

Aodungerile[1];LUO Pei[1];G.Yumchmaa[2];Ts.Bazarkhand[2];E.Altanbold[2];Saixiyalatu[1]

[1]College of geographical science,Inner Mongolia Normal University,Hohhot 011500,China;[2]Department of Geography,National University of Mongolia,Ulaanbaater 14201-46A,Mongolia

Received:2019-02-20 Online:2019-02-19 Published:2019-08-19

Abstract

Abstract: In a case study of two townships at the China-Mongolia border,the chi-squared test,Jaccard correlation index,Spearman rank correlation analysis and Pearson correlation coefficient were used to determine the dominant interspecific associations of plant communities to explore the response of species associations in Stipa krylovii steppe to different grazing patterns.It was found that,compared with Nalan townships in Mongolia,the inter-species relationships between the plant communities of Narenbaolage townships in China were relatively few close,moreover,competition and mutual exclusion among species were observed to be greater in the Narenbaolage townships.The proportion of annual plants in the Narenbaolage townships was greater than in the Nalan townships,and the area of the perennial dominant species was reduced.Different grazing methods have an important impact on the inter-species associations of grassland plant communities,unreasonable grazing may lead to the loss of grassland species and imbalance of the grassland ecosystem.

Key words: Grazing patterns;Stipa krylovii steep;Inter-specific association of plant communities

CLC Number:

S812

Aodungerile;LUO Pei;G.Yumchmaa;Ts.Bazarkhand;E.Altanbold;Saixiyalatu(College of geographical science,Inner Mongolia Normal University,Hohhot 011500,China;Department of Geography,National University of Mongolia,Ulaanbaater 14201-46A,Mongolia). Analysis of the effects of different grazing patterns on the inter-specific association of plant communities in Stipa krylovii steep --A case study of two townships at the China-Mongolia border[J].Journal of Northern Agriculture, 2019, 47(2): 91-96.

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Analysis of the effects of different grazing patterns on the inter-specific association of plant communities in Stipa krylovii steep --A case study of two townships at the China-Mongolia border

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