THE EFFECT OF GRAZING AND SUCCESSIONAL STAGES ON SEED BANK DENSITY AND SIMILARITY BETWEEN SEED BANK AND ABOVE GROUND VEGETATION

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ERFANZADEH R.; HOSSEINI KAHNUJ S.H.

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Journal: Journal of Rangeland Year:2011 | Volume:5 | Issue:2 Page(s): 155-162

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Title

THE EFFECT OF GRAZING AND SUCCESSIONAL STAGES ON SEED BANK DENSITY AND SIMILARITY BETWEEN SEED BANK AND ABOVE GROUND VEGETATION

Author(s)

ERFANZADEH R. | HOSSEINI KAHNUJ S.H. | Issue Writer Certificate

Keywords

SEED BANKQ2

SHEEP GRAZINGQ2

SUCCESSIONQ2

SALT MARSHQ1

VEGETATIONQ2

Abstract

The effect of grazing and SUCCESSION stages on SEED BANK density and similarity between SEED BANK and above ground VEGETATION was investigated. The study was conducted in a SALT MARSH that contained both old and newly created and both grazed and ungrazed habitats. Two old SALT MARSHes were selected to study the effect of grazing on SEED BANK. One of them was intensively grazed and the other one has never or only recently been grazed. Ten plots of 4m2 were used in the new SALT MARSH and 80 plots (50 in grazed and 30 in ungrazed) in the old SALT MARSHes. Soil samples were collected at two different depths (0-5, 5-10cm) in spring 2006. The soil samples were placedin the greenhouse to allow viable seeds to germinate. Germination experiments lasted 6 months and all seedlings were identified and removed after identification. Above-ground VEGETATION composition was determined during the growing season in all plots of selected sites. Results indicated that no significant effect of grazing on SEED BANK.. According to results seed density and composition had more similarity o VEGETATION characteristics in early SUCCESSIONal stages compared to higher stages.Seed density in soil SEED BANK was mostly composed of new colonizers during the SUCCESSION stages while they disappear or decreased intensively and in late SUCCESSION stage many species were disappeared. In conclusion, the importance of SEED BANKs for conservation of species diversity in degrading rangelands was emphasized.

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APA: Copy

ERFANZADEH, R., & HOSSEINI KAHNUJ, S.H.. (2011). THE EFFECT OF GRAZING AND SUCCESSIONAL STAGES ON SEED BANK DENSITY AND SIMILARITY BETWEEN SEED BANK AND ABOVE GROUND VEGETATION. RANGELAND, 5(2), 155-162. SID. https://sid.ir/paper/136213/en

Vancouver: Copy

ERFANZADEH R., HOSSEINI KAHNUJ S.H.. THE EFFECT OF GRAZING AND SUCCESSIONAL STAGES ON SEED BANK DENSITY AND SIMILARITY BETWEEN SEED BANK AND ABOVE GROUND VEGETATION. RANGELAND[Internet]. 2011;5(2):155-162. Available from: https://sid.ir/paper/136213/en

IEEE: Copy

R. ERFANZADEH, and S.H. HOSSEINI KAHNUJ, “THE EFFECT OF GRAZING AND SUCCESSIONAL STAGES ON SEED BANK DENSITY AND SIMILARITY BETWEEN SEED BANK AND ABOVE GROUND VEGETATION,” RANGELAND, vol. 5, no. 2, pp. 155–162, 2011, [Online]. Available: https://sid.ir/paper/136213/en

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