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)
Effect of evergreen Juniperus sabina and deciduous Berberis integerrima species on some substratum soil physico-chemical characteristics

Reza Erfanzadeh; Mohammad Jafari; Misagh Ghasempour

Volume 76, Issue 1 , June 2023, , Pages 15-27


  This study aimed to investigate the effect of Juniperus sabina (evergreen) and Berberis integerrima (deciduous) and herbaceous patches on some soil properties (pH, EC, aggregate stability, microbial respiration, organic carbon and nitrogen) in their habitats. In June, when maximum growth of the dominant ...  Read More

The effect of fire on the quantitative and qualitative characteristics of alpaine rangelands vegetation (case study: Lorestan research site)

Reza Siahmansour; Nadia Kamali

Volume 75, Issue 4 , January 2023, , Pages 503-517


  Fire is the fastest cause of extensive changes in vegetation. The purpose of this research is to examine some of these changes. SO, after determining key area of four 200m transects and a distance of 100 m from each other, 10 plots 1m2 fixed on each of them, formed sample units in each field. This site ...  Read More

The economic valuation of forage production function and utilization of orchid in Targavar grasslands of Urmia

Javad Motamedi; Tayebeh Tofighi azar; Morteza Molaei

Volume 71, Issue 3 , December 2018, , Pages 797-807


  Functions of a natural resource, including rangeland ecosystems, can be divided into four groups of regulatory, habitat, production and information functions. Therefore, in this study, the economic valuation of forage production function and utilization of rhizome orchid were in terms of performance ...  Read More

Comparing plant functional types in an old-field and a natural rangeland vegetation

Mohammad Jankju; Fariba Noedoost; Fahimeh Rafiei

Volume 68, Issue 4 , January 2016, , Pages 835-851


  This research was conducted to compare plant functional types (PFT) and traits in an old-field (abandoned for 28 years) and a control site, in the Baharkish rangelands, Quchan, Iran. In the both sites, 40 randomized quadrates were established. Floristic list, frequency, canopy cover and 20 vegetative, ...  Read More