Volume 31 (2024)
Volume 30 (2023)
Volume 29 (2022)
Volume 28 (2021)
Volume 27 (2020)
Volume 9 (2019)
Volume 8 (2019)
Volume 26 (2019)
Volume 12 (2019)
Volume 10 (2019)
Volume 25 (2018)
Volume 24 (2017)
Volume 23 (2016)
Volume 22 (2015)
Volume 21 (2014)
Volume 20 (2013)
Volume 19 (2013)
Volume 18 (2011)
Volume 17 (2010)
Volume 16 (2009)
Volume 15 (2008)
Volume 14 (2007)
Volume 13 (2006)
Volume 7 (2000)
Volume 6 (1999)
Volume 11 ()
Investigating the effect of ecological factors on essential oil composition of medicinal species Stachys lavandulifolia Vahl. in Baghtilak rangeland of Sari.

Zahra Zamani; Reza Tamartash; Qodratolah Heidari; Zeynab Jafarian Jelodar

Volume 30, Issue 4 , February 2024, , Pages 489-504

Abstract
  Abstract Background and objectives According to the studies, environmental factors can affect the secondary metabolites in plants, including the essential oil and its chemical composition. therefore, it is essential to understand the effect of these factors and which of the environmental factors ...  Read More

Association of salt-resistant hemicryptophyte species in proportion to edaphic factors in coastal desert near Persian gulf

alireza Jamshidi; Navazollah Moradi; Marzieh Rezai

Volume 29, Issue 1 , February 2022, , Pages 112-132

Abstract
  Changes in different solute compounds in edaphic factors affect the spatial distribution of plant species, especially hemicryptophytes.Soil salinity is one of the most common desertification factors in arid and semi-arid regions that contributes to the degradation of the soils of regions susceptible ...  Read More

Variations in the diversity of the Arbuscular mycorrhizal fungi and its symbiosis as affected by different levels of grazing in rangelands

Elham Nouri; Alireza Moshki; Mohammad Matinizadeh; Ali Asghar Zolfaghari; Saeede Rajaei

Volume 27, Issue 4 , December 2020, , Pages 631-671

Abstract
  Due to their various roles in the plants’ life, the Arbuscular mycorrhizal fungi (AMF) has been studied from various aspects. In Iran, study on this type of fungi is still at its infancy. Also, the variety of plant species and populations in Iran necessitates a more in-depth analysis compared to ...  Read More

Effects of environmental factors on vegetation in rangelands of Semirom (Isfahan province) using ordination analysis

Masoud Borhani; Zahra Jabeolansar

Volume 26, Issue 3 , September 2019, , Pages 741-753

Abstract
      Correlation between vegetation and environmental variables is the most important issue related to the structure and function of rangeland ecosystems. Environmental factors such as climate, topography, and soil can alter the dynamics of plant communities. In this study, the effects ...  Read More

Comparison of non-parametric and parametric species distribution models (SDM) in determining the habitat of dominant rangeland species (Case study: Khetteh Riz Rangelands)

Mansoureh Kargar; Zeynab Jafarian; Reza Tamartash; Seyed Jalil Alavi

Volume 25, Issue 3 , November 2018, , Pages 512-523

Abstract
      Ecologists and environmental managers emphasize the use of predictive models to examine the species distribution patterns. The purpose of the present study was to investigate the efficiency of the generalized linear model (GLM) and generalized additive model (GAM) in determining the ...  Read More

Monitoring of restoration treatments effect on vegetation performance Case study: Silvana rangelands in West Azerbaijan province

Mahshid Souri; seyedeh Khadije mahdavi; sahra Tarverdizadeh saqzi

Volume 24, Issue 2 , July 2017, , Pages 360-369

Abstract
  This research was aimed to investigate the effects of range improvement treatments on vegetation performance. The study was conducted in Silvana rangelands, West Azerbaijan province. In this study, four improvement treatments including contour furrow, pitting, gabion and mortar stone dams were selected. ...  Read More

Determining deserts domain of Iran aspect of natural environmental factors

Mohammad Khosroshahi; Morteza Abtahi; Mohammadtaghi Kashki; Sakine Lotfinasab; Fateme dargahian; Zohre Ebrahimi

Volume 24, Issue 2 , July 2017, , Pages 404-417

Abstract
  So far, different statistics have been presented for the area of deserts in the world and Iran by individuals and organizations. The reason for this difference is mainly due to the disagreement among experts in providing a comprehensive definition of desert and factors affecting its formation. In this ...  Read More

land use optimization on some physical and chemical properties of soil and its erodibility index in Avard rangelands

zahra jafari; Hamid Niknahad gharmakher; maryam ghasemi; isa jafari

Volume 24, Issue 1 , May 2017, , Pages 80-88

Abstract
  Todays, conversion of forests and rangelands to croplands has made concern about soil and environmental degradation and global climate change. Knowledge of the effects of land use change on soil properties is necessary and can be a solution for identifying sustainable managements in any region in order ...  Read More

Effect of Contour Furrow on Carbon Sequestration Soil and Biomass (Case Study: Khalifan Rangelands, Mahabad)

savan shahrokhi; Mahshid Souri; javad moetamedi; Alireza Eftekhari

Volume 24, Issue 1 , May 2017, , Pages 98-109

Abstract
   Global warming has devastating effects on the lives of organisms, causing damage to natural ecosystems, floods, droughts and climatic and ecological imbalance. Resonance effects of greenhouse gases in the atmosphere as a result of carbon dioxide concentration causes warming, melting polar ice caps, ...  Read More

Effects of physiographic factors on soil Carbon sequestration potential of two types of Astragalus (Case study: Mountain Rangelands of Kermanshah Province)

Seyedeh khadijeh Mahdavi; Mahshid Souri; Ahmad Choupanian

Volume 22, Issue 2 , August 2015, , Pages 289-297

Abstract
  Increased concentration of carbon dioxide in the atmosphere is the main cause of climate change, having harmful effects for human beings. Reducing the amount of this gas by inhibiting industrial development and the use of artificial methods is not suitable due to the lack of economic justification. Therefore, ...  Read More

Effect of grazing utilization on vegetation and soil properties in steppe rangelands (Case study: steppe rangelands Saveh)

sedighe zarekia; hosein arzani; mohamad jafari; noloufar zare

Volume 22, Issue 4 , March 2015, , Pages 745-756

Abstract
  This research was aimed to investigate the effects of different grazing systems and intensities on soil and vegetation properties. Initially, the canopy cover percentage, density, and species height were measured using systematic random sampling. To investigate the changes in soil parameters in ...  Read More

Assessment of Haloxylon plantation effects for desert reclamation with emphasis on substratum’s soil and vegetation properties in Kale Shoor of Sabzevar region, Iran

Azin Jafarian; Mohammad Jafari; علی طویلی

Volume 21, Issue 1 , June 2014, , Pages 51-61

Abstract
  Ecological effects of Haloxylon plantation on natural vegetation and soil properties were investigated in this study. For this purpose, three regions with 1 to 5-year-old, 5 to 10-year-old and over 20-year-old Haloxylon (Haloxylon persicum) and a control area for each region were determined. Vegetation ...  Read More

Effect of grazing intensity on soil and vegetation characteristics using Principal components Analysis

Asghar Kohandel; Hossein Arzani; Morteza Hosseini Tavassol

Volume 17, Issue 4 , November 2011, , Pages 518-526

Abstract
  Different grazing intensities change the chemical and physical properties of soil and plant composition of rangelands. Accordingly, effect of livestock grazing intensities on soil and vegetation characteristics were investigated in the southeastern of Hashtgerd using Principal Component Analysis. Principal ...  Read More

Investigating the range condition trend during eight-year period in Isfahan province

Masoud Borhani; Hossein Arzani; Zahra Jaberolansar; Mojgan Azimi; Mahdi Farahpor

Volume 17, Issue 1 , September 2010, , Pages 1-20

Abstract
  Range condition is known as an important indicator for assessment in range management. Many techniques have been exploited for determining this indicator, from which four-factor method has been used in this study. Some communities at stepic regions of Isfahan province were selected. In each selected ...  Read More

The effect of some soil physical properties on plant growth index of black saxaul Haloxylon aphyllum

Nejatali Salar

Volume 16, Issue 2 , December 2009, , Pages 224-233

Abstract
  Regeneration of black saxual (Haloxylon aphyllum) is an important project for sand dune fixation in desert area of Iran. Success of this project is largely depending on climate conditions and soil physical properties. In order to determine some inhibitor factors of black saxual growth, a project were ...  Read More

Grazing intensity impact on soil carbon sequestration and plant biomass in semi arid rangelands (Case study: Sisab rangelands of Bojnord)

Aliasghar Naghipour Borj; Ghasemali Dianati Tilak; Hosein Tavakoli; Maryam Haidarian Aghakhani

Volume 16, Issue 3 , December 2009, , Pages 375-385

Abstract
  Climate change and increase of global warming is one of the most important challenges in sustainable development, which is due to increase of concentration of greenhouse gasses in atmosphere. CO2 is the main part of greenhouse gasses. In order to mitigate atmospheric CO2 and create balance in greenhouse ...  Read More

Investigation of ecologycal parameters on the turn yellow of Haloxylon sp. ( in the semnan province )

Daruosh Ghorbanian; Sudabeh korouri; Parvin Salehi; Amar Rafiei Emam; Mohammad Mousavi

Volume 15, Issue 4 , January 2009, , Pages 525-539

Abstract
  This project was done as a part of ecological and phonological studies of Haloxylon sp. This study was done in artificial habitat (Mohsenabad in Garmsar) and natural habitat (Chahjam in Shahrood) of Haloxylon sp. General information  about condition of Haloxylon sp. habitats was gathered. Haloxylon ...  Read More

Study of soil and plant characteristics interaction in Salsola rigida in desert lands

Daruosh Ghorbanian; Mohammad Jafari

Volume 14, Issue 1 , January 2007, , Pages 1-7

Abstract
  In this study one site with good coverage of Salsola rigida species selected in desert region of Shahrood area. Four plots of 100 m2 were chosen in this site and two soil profiles were digged in each plot; one profile under Salsola rigida plants and another in the space between this species. Soil samples ...  Read More

Assessment of soil criteria indices for desertification studies in Ghom province

Mohammad Jafari; Fatemeh Panahi; Hasan Ahmadi; Hamid reza Abbasi; Mohammad Musavi; Mohammad ali Zare; Ali Tavili

Volume 13, Issue 3 , February 2006, , Pages 278-283

Abstract
  The desertification phenomenon with all the problems it causes , most great effect will remain in soil, so by assessing soil variations we can reach the intensity of desertification. In the Iranian model for desertification assessment some indices including EC, soil depth, soil texture and the amount ...  Read More