STUDY ON THE ROLE OF NURSE SPECIES ON SPECIES DIVERSITY CONSERVATION UNDERTHREE DIFFERENT GRAZING TREATMENTS (OVERGRAZING, OPEN GRAZING AND EXCLOSURE SITES), CASE STUDY: THE SARALIABAD RANGELAND OF GORGAN

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MOHAJER N.; JORI M.H.; MAHDAVI M.; MOHAJER N.; BAGHESTANIFAR M.

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Journal Paper

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Journal: JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY Year:2013 | Volume:8 | Issue:SPECIAL ISSUE Page(s): 15-24

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Title

STUDY ON THE ROLE OF NURSE SPECIES ON SPECIES DIVERSITY CONSERVATION UNDERTHREE DIFFERENT GRAZING TREATMENTS (OVERGRAZING, OPEN GRAZING AND EXCLOSURE SITES), CASE STUDY: THE SARALIABAD RANGELAND OF GORGAN

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Keywords

LIVESTOCK GRAZINGQ3

NURSE PLANTSQ2

RANGE ECOSYSTEMQ2

SHANNON INDEXQ2

UNDERSTORY VEGETATIONQ2

Abstract

Under intensive LIVESTOCK GRAZING on rangeland ecosystems, balance between facilitative and competitive interactions among plants leads to competition decrement and facilitative relationships' increment. Under such condition, the spatial correlation between NURSE PLANTS and UNDERSTORY VEGETATION would also increase. This spatial correlation leads to increase in survival and diversity of UNDERSTORY VEGETATION compared to the plants in open area. The aim of this study was to evaluate the role of nurse species (sponsor) in the preservation of understory diversity in three different grazing areas of Sar Aliabad summer pastures. Sampling was conducted at three different grazing areas including overgrazed, open grazed and exclosure sites. To this purpose, forty five 1m2 plots of were randomly-systematically establishment in each area. Half of the plots were established within the open spaces among the bushes, whereas, the remaining plots were assigned to the NURSE PLANTS, and number of plants within the plots was recorded. Thereafter, Shannon indices were used to evaluate the plant diversity within and under the NURSE PLANTS. Results indicated that Shannon diversity index for UNDERSTORY VEGETATION in grazing areas was higher than those of plants in open spaces. Diversity increased by reduction in the grazing intensity and was higher in moderate grazing area than two other grazing areas.

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APA: Copy

MOHAJER, N., JORI, M.H., MAHDAVI, M., MOHAJER, N., & BAGHESTANIFAR, M.. (2013). STUDY ON THE ROLE OF NURSE SPECIES ON SPECIES DIVERSITY CONSERVATION UNDERTHREE DIFFERENT GRAZING TREATMENTS (OVERGRAZING, OPEN GRAZING AND EXCLOSURE SITES), CASE STUDY: THE SARALIABAD RANGELAND OF GORGAN. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, 8(SPECIAL ISSUE), 15-24. SID. https://sid.ir/paper/185620/en

Vancouver: Copy

MOHAJER N., JORI M.H., MAHDAVI M., MOHAJER N., BAGHESTANIFAR M.. STUDY ON THE ROLE OF NURSE SPECIES ON SPECIES DIVERSITY CONSERVATION UNDERTHREE DIFFERENT GRAZING TREATMENTS (OVERGRAZING, OPEN GRAZING AND EXCLOSURE SITES), CASE STUDY: THE SARALIABAD RANGELAND OF GORGAN. JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY[Internet]. 2013;8(SPECIAL ISSUE):15-24. Available from: https://sid.ir/paper/185620/en

IEEE: Copy

N. MOHAJER, M.H. JORI, M. MAHDAVI, N. MOHAJER, and M. BAGHESTANIFAR, “STUDY ON THE ROLE OF NURSE SPECIES ON SPECIES DIVERSITY CONSERVATION UNDERTHREE DIFFERENT GRAZING TREATMENTS (OVERGRAZING, OPEN GRAZING AND EXCLOSURE SITES), CASE STUDY: THE SARALIABAD RANGELAND OF GORGAN,” JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, vol. 8, no. SPECIAL ISSUE, pp. 15–24, 2013, [Online]. Available: https://sid.ir/paper/185620/en

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