The combined effect of fire period and grazing intensity on plant species diversity indices in the semi-steppe rangeland of Chaharmahal and Bakhtiari province

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MOHAMMADIAN A.; ASADI BORUJENI E.; EBRAHIMI A.A.; TAHMASEBI P.; NAGHIPOUR A.A.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2020 | Volume:27 | Issue:1 (78) Page(s): 84-97

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Title

The combined effect of fire period and grazing intensity on plant species diversity indices in the semi-steppe rangeland of Chaharmahal and Bakhtiari province

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Keywords

FireQ1

Species richnessQ1

InteractionQ1

Charmahal-BakhtiariQ1

Abstract

The aim of this study was to investigate the combined effect of Fire and grazing on the characteristics of plant diversity indices in the semi-steppe rangelands of Chaharmahal and Bakhtiari province. Therefore, 16 sites were selected with different periods of Fire and grazing intensity, and 18 quadrats along transects at each site were determined and then a systematicrandom sampling method was performed. Then, species diversity and Beta diversity indices were calculated. To determine the effects of Fire, grazing, year, and their Interactions on the diversity indices, the General Linear Model (GML), and to determine the significant effect between the Fire site and control (no Fire) site the method of T-Test were used. The results showed that in areas with moderate grazing intensity with different periods of Fire, Simpson, Shannon, and richness diveristy indices increased compared to control areas. However, the beta diversity decreased. In areas with high grazing and different periods of Fire, Simpson and Shannon diversity indices increased compared to control, and in areas with 1-3 and 3-5 years Fire, Species richness increased and decreased, respectively. Also, in different periods of Fire, the beta diversity decreased compared to control. Despite the revival of some plant species in Fireaffected areas over the time, their percentage significantly decreased under grazing intensities compared to control, and the highest percentage of perennial grass cover in different periods of Fire was observed in medium garzing areas. After a Fire in a semi-steppe rangeland, proper management of the rangeland can increase the quality of usable forage and provide Species richness.

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APA: Copy

MOHAMMADIAN, A., ASADI BORUJENI, E., EBRAHIMI, A.A., TAHMASEBI, P., & NAGHIPOUR, A.A.. (2020). The combined effect of fire period and grazing intensity on plant species diversity indices in the semi-steppe rangeland of Chaharmahal and Bakhtiari province. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 27(1 (78) ), 84-97. SID. https://sid.ir/paper/363466/en

Vancouver: Copy

MOHAMMADIAN A., ASADI BORUJENI E., EBRAHIMI A.A., TAHMASEBI P., NAGHIPOUR A.A.. The combined effect of fire period and grazing intensity on plant species diversity indices in the semi-steppe rangeland of Chaharmahal and Bakhtiari province. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2020;27(1 (78) ):84-97. Available from: https://sid.ir/paper/363466/en

IEEE: Copy

A. MOHAMMADIAN, E. ASADI BORUJENI, A.A. EBRAHIMI, P. TAHMASEBI, and A.A. NAGHIPOUR, “The combined effect of fire period and grazing intensity on plant species diversity indices in the semi-steppe rangeland of Chaharmahal and Bakhtiari province,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 27, no. 1 (78) , pp. 84–97, 2020, [Online]. Available: https://sid.ir/paper/363466/en

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