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 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

Effect of Cushion Plant Canopy of Onobrychis cornuta on Distribution of Soil Seed Bank in Alpine Rangelands of Vaz Watershed

parisa niknam; Reza Erfanzadeh

Volume 70, Issue 4 , January 2018, , Pages 1067-1078


  In this study, the effect of cushion plants on spatial distribution of soil seed bank was studied in mountainous and hilly rangelands in Vaz watershed, Mazandaran province. Therefore, we selected randomly 20 Onobrychis cornuta individuals and sampled from soil at four positions around each individual ...  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

Effect of fire intensity on soil seed bank density of plant functional groups (case study: Golestan national park)

Mina Bashmaghi; Reza Erfanzadeh; Mahdi Abedi

Volume 70, Issue 1 , June 2017, , Pages 43-55


  In the current study, the variation of soil seed bank density was evaluated in two different fire severities, i.e. low and high. Soil sampling was done in Sharlegh site, Golestan national park. Therefore, 5 soil samples for both grass patches and shrub patches in each burnt and control sites were selected. ...  Read More

Impact of land use changes from rangeland to horti-agriculture on soil total carbon and particulate organic matter in micro- and macro aggregates (Case study: Salavatabad, Sanandaj)

Leila Zandi; Reza Erfanzadeh; Hamid Joneidi-Jafari

Volume 69, Issue 3 , December 2016, , Pages 587-596


  This study aimed to determine the effect of land use changes from rangeland to horti-agricultural lands on the most important qualitative characteristics of soil such as total soil carbon and particulate organic matter, in Salavatabad region, Sanandaj. In the present study, one rangeland, two cultivated ...  Read More

Indigenous Knowledge and Local Traditions for Sheep Dairy Products and Management(Case study: Takor village, Noor city)

Mostafa Firuzruz; Mahdi Ghorbani; Reza Erfanzadeh

Volume 69, Issue 3 , December 2016, , Pages 661-676


  Indigenous knowledge of each land is the manner of understanding and attitude of people towards world that shows the outcome of ancestors' experiences for years on optimal utilization of resources around human beings. Emphasis on technology transition and disregard for indigenous knowledge cause not ...  Read More

Comparison of soil seed bank characteristics between forest and grassland habitats

Seyed Hamzeh Hosseini Kahnuj; Reza Erfanzadeh; Hossein Azarnivand

Volume 68, Issue 3 , October 2015, , Pages 469-485


  This study aimed to investigate the effect of habitat kind on soil seed bank characteristics viz. density diversity, richness and similarity between seed bank and above ground vegetation. Two different habitats (grassland and forest) were selected in Vaz, Mazandaran province. The grassland habitat located ...  Read More

Study on the effect of soil chemical characteristics and crown canopy of Ziziphus spina-christi L. on soil seed bank characteristics

Moharram Ashrafzadeh; Reza Erfanzadeh

Volume 66, Issue 4 , March 2014, , Pages 477-491


  This study was carried out to investigate the effect of crown canopy of Ziziphus spina-christi on seed bank characteristics (density and similarity with above ground flora) in two sites with saline-alkaline and alkaline soils. In each soil, forty plots were established, half in and half outside of Z. ...  Read More

The effect of grazing on density, diversity and richness of soil seed bank in mountainous rangelands (case study: Waz watershed, Mazanderan province)

Paria Kamali; Reza Erfanzadeh; Hasan Ghelichnia

Volume 66, Issue 4 , March 2014, , Pages 583-593


  This study aimed to investigate the effect of animal grazing on soil seed bank characteristics in the northern slopes of Alborz. For this purpose, soil seed bank characteristics were compared between grazed and ungrazed areas. Therefore, four transects perpendicular to the sides of exclosure inside and ...  Read More

Relation between Dominant Watershed Processes and River Morphological Changes )Case Study: Firoze-shahjoob River(

Sayed Hamzeh Hosseini; Reza Erfanzadeh; Paria Kamali

Volume 66, Issue 1 , April 2013, , Pages 59-72


  The study on the livestock dietary and preference value of different species are essential forrangeland management. Therefore, this study was carried out to evaluate the preference indicesof 14 plant species in Kahnuj, during two different phenological stages (vegetative growth andafter-seed-dispersal). ...  Read More