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 ()
The effects of climate variability on canopy cover percentage of forage species in Ghosheh steppe Rangelands, Semnan Province

Nahid Azizi; Hamed Joneidi; Khaled Osati

Volume 26, Issue 3 , September 2019, , Pages 717-730

Abstract
      This research monitored changes in canopy cover percentage of typical species during a 10-year period in the Ghosheh rangelands to find out the relationship between two important climate variables (precipitation and temperature) and canopy cover changes. Therefore, the canopy cover ...  Read More

Trend Analysis of Hydroclimatological Parameters and Detection of Manageral Changes in Water Resources Conditions of Hablerood Watershed

Somayeh seyed ali; mohammad rahimi; Jafar Dastourani; Mohammad Khosroshahi

Volume 23, Issue 3 , January 2017, , Pages 555-566

Abstract
  In this study, the impact of climatological parameters and land use on water yield of the watershed was investigated. Therefore, the trend of climatological parameters (precipitation and temperature) and stream flow discharge were studied monthly, quarterly and annually at the stations located inside ...  Read More

Investigation on changes in consumption and production of rangeland species in Sabalan Mountain Rangelands of Ardabil Province

Esmael Aliakbarzadeh; Hasan Yeganeh; Hadi Afrah

Volume 23, Issue 3 , January 2017, , Pages 567-577

Abstract
  The aim of this study was to evaluate the production characteristics and the consumption rate of dominant forage species in different phenological stages. The study was conducted in Sabalan, Ardebil Province for four years. In this study, for each species, four average individuals were selected and marked ...  Read More

Studying the phenological stages of Thymus kotschyanus and Artemisia aucheri in Alamot semi-steppe rangelands, Ghazvin

Saeed Rashvand; Ali Ehsani; Hasan Yeganeh; Anvar Sour

Volume 21, Issue 4 , March 2015, , Pages 591-603

Abstract
  Knowledge of the phenological stages of species constituting a plant community has a considerable importance in grazing management to achieve the goals of sustainable production. The study of plant phenology is critical for monitoring, management and conservation of ecosystems. In this research, ...  Read More

Monitoring vegetation changes using precipitation data and satellite images in north-west of Iran

Fatemeh Hadian; Seyed Zeinolabedin Hoseini; Mansoureh Seyed Hoseini

Volume 21, Issue 4 , March 2015, , Pages 756-768

Abstract
  Precipitation is one of the factors affecting vegetation. Nowadays, satellite images are broadly used for monitoring the effects of precipitation variations on the vegetation changes. The aim of this study was to investigate the relationship between vegetation dynamic and precipitation variations using ...  Read More

Comparison of phenology of Artemisia aucheri in semi-steppe regions of Iran

Ali Ehsani; Mamak Ahmadian; Saeed Rashvand; Mohammad Ali Dehghani Tafti; Mostafa Zare

Volume 21, Issue 1 , June 2014, , Pages 13-23

Abstract
  Study of the phenology of range key species is important to regulate and apply proper management for sustainable utilization of rangeland forage. In this study, the phenological stages of Artemisia aucheri were examined as a key species at three sites of different semi-steppe regions during 2007-2010. ...  Read More

Change and vulnerability of Net Primary Production (NPP) in Iranian forest, rangeland and desert ecosystems impacted by climate change

Mostafa Jafari

Volume 21, Issue 1 , June 2014, , Pages 139-153

Abstract
  Iran faced with climate and environmental changes in past years and it is projected that some climatic changes will occur in the future. Net Primary Production (NPP) is an important index to evaluate production in natural ecosystems including forest, rangeland and desert. Climate change impact will cause ...  Read More

Simulating temperature variations of soil different depths and study of some effective atmospheric parameters (case study-Yazd synoptic station)

Ali Mohammad Ghaeminia; Hamid reza Azimzadeh; Mohammad Hossein Mobin

Volume 18, Issue 1 , May 2011, , Pages 42-57

Abstract
  Soil temperature is one of the most important and effective factors influencing the establishment of vegetation in arid regions. Soil temperature is affected by several meteorological parameters. The study of air temperature, rainfall and sunshine hours can be useful ...  Read More

Assessment of climatic factors effect on vegetation in the Zagross region using satellite images

Manuchehr Farajzadeh; Aman alah Fathnia; Bohlul Alijani; Parviz Zeaiean

Volume 18, Issue 1 , May 2011, , Pages 107-123

Abstract
  The aim of this research was to evaluate the effect of climatic factors on vegetation in rangelands of Zagross with normalized difference vegetation index (NDVI) derived from Advanced Very High Resolution Radiometer (AVHRR) sensor, and climatic data.  The study area was rangelands of Zagross with ...  Read More

Vegetation changes under precipitation in Steppic rangelands of rudshur.

Morteza Akbarzadeh; Taghgi Mirhaji

Volume 13, Issue 3 , February 2006, , Pages 222-235

Abstract
  Study of vegetation changes of ungrazed rangelands is important. It is supposed that ungrazed areas tends toward climax and range condition to be improved. The major portion of our rangelands are laied in arid and semi-arid regions. For that precipitation is the major influential factor on vegetation ...  Read More