Volume 77 (2024)
Volume 76 (2023)
Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 71 (2018)
Volume 70 (2017)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
A Study on Nursing Role of Astragalus brachycalyx Fisch on the Soil Seed Bank under the Livestock Grazing in Summer Rangelands of Boyer Ahmad County

Parviz Gholami; Mohammad Farzam; Nateq Lashkari sanami; Lale Amouzgar

Volume 73, Issue 3 , December 2020, , Pages 541-553


  The study of soil seed bank provides vital information for rehabilitation and restoration of rangeland ecosystem. In the arid and semi-arid environments, shrub plants may cause accumulation of seed bank under their canopy, thereby protecting them against the livestock herbivory and the other environmental ...  Read More

Effect of grazing on some morphological characteristics of Bromus tomentellus Boiss., Hordeum bulbosum L. and Agropyron trichophorum (Link) K. Richt. species in semiarid regions Zagheh (Lorestan province)

Alirostam Khanizadeh; Reza Erfanzadeh; Reza Siahmansur

Volume 71, Issue 1 , June 2018, , Pages 73-84


  The aim of this study was to quantify the response of Bromus tomentellus, Hordeum bulbosum and Agropyron trichophorum to continuous grazing of sheep in semi-arid rangelands of Lorestan. In two areas, grazed and ungrazed, 4 transects of 200 meters were established and 10 random points were selected along ...  Read More

Study on the effect of Livestock Grazing on Plant Species Diversity Components in Semi-arid regions

Reza midipour; Reza Erfanzadeh; Marzban Faramarzi

Volume 70, Issue 3 , December 2017, , Pages 723-734


  Intensive livestock grazing is one of the most important destructive factors in rangelands that leads to decrease of diversity and causes disappearance of sensitive plants. On the other hand, considering the scales in assessment of diversity is very importance to study the variability of plant diversity ...  Read More

Effects of the canopy of perennial plants and livestock utilization rates on the density of soil seed bank in an arid steppe rangeland

zahra nikbakht; Mohammad Farzam; Mohammad Khajeh Hosseini; Hamid Ejtehadi

Volume 69, Issue 3 , December 2016, , Pages 777-788


  The study of soil seed bank provides useful information on management and restoration of natural ecosystems. In the arid environments, some perennial plants may cause accumulation of seed bank under their canopy, thereby protecting them against the livestock herbivory and the other environmental factors. ...  Read More

Suitable Species Diversity Abundance Model in Three Grazing Intensities in Dizaj Batchi Rangelands of West Azerbaijan

Javad Motamedi; Esmaeil Sheidai Karkaj

Volume 67, Issue 1 , May 2014, , Pages 103-115


  Species diversity is one of the important characteristics shows rangeland ecosystems changes, which isalready under effects of management practices. Thus, this research was conducted to study speciesdiversity variation and assess suitable distributive abundance model in three rangeland sites in WestAzerbaijan. ...  Read More