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 17 (2010)
Volume 16 (2009)
Volume 15 (2008)
Volume 14 (2007)
Volume 13 (2006)
Volume 7 (2000)
Volume 6 (1999)
Volume 11 ()
Range suitability classification for goats using GIS Case Study: Ghareaghach watershed-Semirom

Esmaeil Alizadeh; Hossein Arzani; Hossein Azarnivand; Abdol reza Mohajeri; Seyed Hassan Kaboli

Volume 18, Issue 3 , September 2011, Pages 353-371

Abstract
  Range suitability determination is considered as a step toward development and sustainable utilization of natural resources with a great significance in the world of today. Since the goats are the majority of the livestock populations using the country's rangelands after the sheep, grazing traits, adaptation ...  Read More

Investigation on ecological characteristics of Astragalus squarrosus in Kashan rangelands

Hosein Azarnivand; Ali Tavili; Ali Sadeghi Sangdehi; Mohammad Jafari; Mohamad ali Zare Chahouki

Volume 18, Issue 3 , September 2011, Pages 372-383

Abstract
  Understanding ecological needs of range species is of utmost importance for range managers in conservation and utilization of rangeland ecosystems. The current research was conducted to find out ecological characteristics of Astragalus squarrosus in Kashan. In each study area, soil sampling was performed ...  Read More

Relationship between soil physico -chemical attributes and plant communities (Case Study: Mighan Desert in Arak)

Hamid Torang zar; Qavam aldin Zahedi; Mohammad Jafari; Hojat ... Zahedi pur

Volume 18, Issue 3 , September 2011, Pages 384-394

Abstract
  The main objective of the present study was finding spatial relationship model of the plant species composition to physico-chemical soil variability, in north-west of Mighan Desert in Arak. According to the condition of the studied habitats, the study was based on a survey of three identified vegetation ...  Read More

A study on drought characteristics of Golestan Province using Standardized Precipitation Index (SPI)

Omol banin Bazr afshan; Mohsen Mohseni saravi; Arash Malekian; Abalfazl Moeini

Volume 18, Issue 3 , September 2011, Pages 395-407

Abstract
  Drought is defined as the continuous and abnormal moisture deficit. The term of continuous means continuation of deficit and the term of abnormal means deviation of favorite index of natural condition from the mean. In every drought study four main characteristics are considered: severity, duration, ...  Read More

The effect of some topographical properties in plant diversity in Steppic Rangelands of Nodushan, Yazd Province, Iran

Elham Fakhimi Abarghoie; Mansoor Mesdaghi; Parviz Gholami; Hosein Naderi Nasrabad

Volume 18, Issue 3 , September 2011, Pages 408-419

Abstract
  One of the main objectives of ecosystem managements is preservation of diversity. By measuring the diversity and evenness of the species, the necessary management recommendations will be presented. In this research, the effect of slope, aspect and elevation on richness and evenness of plant species were ...  Read More

Efficiency assessment of the of Support Vector Machines for land use classification using Landsat ETM+ data (Case study: Ilam Dam Catchment)

Saleh Arekhi; Mostafa Adibnejad

Volume 18, Issue 3 , September 2011, Pages 420-440

Abstract
  Land use classification using remotely sensed images is one of the most common applications in remote sensing, and many algorithms have been developed and applied for this purpose in the literature. This study investigates the efficiency of Support Vector Machines algorithms in image classification. ...  Read More

Investigation on granulometry and mineralogy of sediments for source identification of Baluchestan sand dunes

Marzieh Abassi; Sadaat Feiznia; Hamid reza Abassi; Uones Kazemi; Ahmad Gharanjik

Volume 18, Issue 3 , September 2011, Pages 441-451

Abstract
      Source identification of sand dunes is of particular importance in projects of wind erosion control. In this study, the map of geomorphology and inventory map of sand dunes were prepared for five regions of Baluchestan under wind erosion using aerial photos, satellite images and Arc-View ...  Read More

The effect of NaCl priming on germination and early growth of seeds of Festuca ovina L. under salinity stress conditions

Ghasemali Dianati-Tilaki; Bahman Shakarami; Masoud Tabari; Behzad Behtari

Volume 18, Issue 3 , September 2011, Pages 452-462

Abstract
  Salinity is one of the most important abiotic stresses that negatively affects the seed germination and growth of seedlings in plants. NaCl priming is of techniques to improve the seed performance and could increase germination percentage, growth of the seedlings and the mean time of seed germination ...  Read More

Effects of planting depth and planting density on height growth, basal diameter and viability of Saxaul (Haloxylon persicum)

Ali Jahani; Vahid Etemad; Mohammad Doolati; Nazi Avani

Volume 18, Issue 3 , September 2011, Pages 463-473

Abstract
  Production of native and non native species in the nursurey is considered as one of the raw materials for reforestation in arid regions. Two important factors affecting the seedling production in the nursery are seed density and seed planting depth which extensive studies have been done in this area. ...  Read More

Phenology study of Astragalus chaborasicus، Poa sinaica وStipa hohenackeriana calculated by Growing Degree Days (GDD) in Khoshkrood saveh Region

Sadegheh Zarekia; Ali Ehsani; Nilufar Zare; Taghi Mirhaji

Volume 18, Issue 3 , September 2011, Pages 474-485

Abstract
  Information on phenology of the range species is important to manage the plans of plant utilization, control of the livestock entry and exit, seed collection, and understanding of the nutritive value of plant species in different phenology stages. In this study, phenology of three important rangeland ...  Read More

Autecology of Carogana grandiflora Case study: Poldasht, West Azarbaijan –Iran

Mir samad Mousavi; Khadejeh Mahdavi; Ahmad Ahmadi

Volume 18, Issue 3 , September 2011, Pages 486-497

Abstract
  Preservation, regeneration, development and management of renewable natural resources (especially vegetation cover) need precise and comprehensive knowledge. In this research, autecology of Caragana grandiflora sp. was studied in Poldasht, West Azarbayjan province. This species is a perennial plant from ...  Read More

Relationship between available phosphorus and some soil physical and chemical characteristics in Absard Plain (Damavand Province)

Maryam Dadgar; Masoud Aliha; Enseyeh Faramarzi

Volume 18, Issue 3 , September 2011, Pages 498-504

Abstract
  Phosphorus is of macro elements for plant growth. Phosphorus compounds are almost insoluble and available phosphorous in soil is rapidly decreased. Use of phosphate fertilizers in soil has been always one of the fundamental issues in agriculture and production due to the low efficiency of phosphorus ...  Read More