THE EFFECTS OF EXCLOSURE AND GRAZING ON VEGETATION CHANGES IN ARQUIN SITE OF ZANJAN

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AGHAJANLO F.; AKBARZADEH M.; MOUSAVI A.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2010 | Volume:16 | Issue:4 (37) Page(s): 493-504

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Title

THE EFFECTS OF EXCLOSURE AND GRAZING ON VEGETATION CHANGES IN ARQUIN SITE OF ZANJAN

Author(s)

AGHAJANLO F. | AKBARZADEH M. | MOUSAVI A. | Issue Writer Certificate

Keywords

RANGELANDQ2

EXCLOSUREQ2

CANOPY COVERQ2

VEGETATION COMPOSITIONQ2

FORAGE PRODUCTIONQ2

Abstract

As the documents and reports reveal, the condition of RANGELANDs of Iran is poor or very poor in most areas; therefore, the percentage of invader species is dominant. The study of vegetation changes under strict EXCLOSURE and grazing is critical to understand the extreme problems of RANGELANDs of Iran. The effect of EXCLOSURE and grazing was studied on the direction of vegetation changes of RANGELANDs at Arquin site of Zanjan province at 1450 meter above sea level from 2001 to 2006. Three fixed pairs of transects with a total number of 60 plots were established inside of EXCLOSURE area and outside too. The annual FORAGE PRODUCTION was measured by randomized plots. Comparison of the data in first and last years of the study were done by T student sample test. The results showed that the total CANOPY COVER of Arquin EXCLOSURE is increased inside in comparison with outside, and it is statistically significant (P<0.01) . The response of growing forms to EXCLOSURE and grazing was different, and the CANOPY COVER of Astragalus achtalensis (P<0.05) and Stipa barbata (P<0.01) increased significantly in 2006 in comparison with 2002. The VEGETATION COMPOSITION changed also in the study area. The relative increase of increasers in last year, was by 160 percent to that of the first year inside the EXCLOSURE; whereas the changes were not apparent. The rate of plant production was specially depended on precipitation fluctuation and the amount of organic mater and nitrogen content at 0 to 15 cm of soil depth inside and outside of the EXCLOSURE and that of 15-30 cm outsid has been increased significantly.

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APA: Copy

AGHAJANLO, F., AKBARZADEH, M., & MOUSAVI, A.. (2010). THE EFFECTS OF EXCLOSURE AND GRAZING ON VEGETATION CHANGES IN ARQUIN SITE OF ZANJAN. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 16(4 (37)), 493-504. SID. https://sid.ir/paper/107367/en

Vancouver: Copy

AGHAJANLO F., AKBARZADEH M., MOUSAVI A.. THE EFFECTS OF EXCLOSURE AND GRAZING ON VEGETATION CHANGES IN ARQUIN SITE OF ZANJAN. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2010;16(4 (37)):493-504. Available from: https://sid.ir/paper/107367/en

IEEE: Copy

F. AGHAJANLO, M. AKBARZADEH, and A. MOUSAVI, “THE EFFECTS OF EXCLOSURE AND GRAZING ON VEGETATION CHANGES IN ARQUIN SITE OF ZANJAN,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 16, no. 4 (37), pp. 493–504, 2010, [Online]. Available: https://sid.ir/paper/107367/en

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