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 7 (2000)
Volume 6 (1999)
Volume 11 ()
Developing a method for mapping of forage production in arid and semidesert area using RS-GIS

Jalal Abdollahi; Hosein Arzani; Naser Baghestani; Mohammad Hasan Rahimian

Volume 13, Issue 3 , February 2006, Pages 162-171

Abstract
  Remote sensing is a method to produce updated information in vast area. Describing the model for utilization and processing satellite data in regard to developing a method for mapping forage production of arid regions were the purpose for this study. For this purpose Landsat ETM+ data used at Nodushan ...  Read More

Seed and hay production in 10 ecotypes of mountain rye Secale montanum in cold-temperate territory of northern Lorestan

Ebrahim Rahmani; Ali ashraf Jafari; Pooya Hedayati

Volume 13, Issue 3 , February 2006, Pages 172-185

Abstract
  Mountain rye (Secal montanum) is one of the most important forage grasses for pasture establishments. It grows for grazing and hay production in the north and west mountains of Iran. In order to determine the best population for pasture establishment in Lorestan province, Iran, 10 ecotypes of mountain ...  Read More

Vegetation cover change during 25 years, Case of Lar Dam Basin

Seyed Alireza Mousavi; Mahdi farahpour; Maryam Shokri; Karim Solaimani; Mahmood Godarzi

Volume 13, Issue 3 , February 2006, Pages 186-200

Abstract
  Landsat 7 ETM+ satellite data of 2002 versus vegetation cover map of 1976 were used to: 1- assess the capability of satellite data to prepare vegetation cover classes map and 2- study the vegetation changes trend in an area of about 26858.6 ha in Lar Dam Basin. Field Sample spots were defined after accomplishing ...  Read More

Relationships between the most important ecological factors and rangeland vegetative using multivariate data analysis methods. (case study :South of Markazi province)

Hamid reza Mirdavoodi; Hojat... Zahedi; Masud Shakoei; Javad Tourkan

Volume 13, Issue 3 , February 2006, Pages 201-211

Abstract
  The initial step of each phenomenon is complementary recognizing and understanding of its relationship with other effecting and affecting phenomena. Regarding rangeland vegetation as the first chain of nutrition in rangeland's ecosystems, recognition of its homogeneous areas and vegetation type classification ...  Read More

Study the Growth degree days requirement for phenological stages of important Range species in Homand.

Taghi Mirhaji; Abbas ali Sanadgol

Volume 13, Issue 3 , February 2006, Pages 212-221

Abstract
  The phenological stages of five species Festuca ovina, Koeleria  macrantha, Koeleria phleoides, Melica cupani and Melica jacquemntii were studied for three years(2003-2005) in Homand-e-abesard rangeland research station, in 70 km east of Tehran. Annual life cycle of plants were divided into two ...  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

Determination of Animal Unit weight and Animal Unit Requirement of Dalagh breed (Case Study: Agh Ghala Region)

Hosein Arzani; Khadijeh Mahdavi; Ali Nikkhah; Hosein Azarnivand

Volume 13, Issue 3 , February 2006, Pages 236-247

Abstract
  Information on animal daily requirement and forage quality for determination of rangeland grazing capacity is an essential task for range management. Animal requirement depends on factors such as weight, age, physiological condition as well as forage quality. There are more than 27 sheep breeds with ...  Read More

Eonomic analysis of nomads migration and settlement in the Bakkan region of Fars proovinc

Gholam reza Badjian; Dahlan Ismail; Ali akbar Mehrabi; Mohammad Shah vahid

Volume 13, Issue 3 , February 2006, Pages 248-264

Abstract
  The Cost/ Benefit approach in taken to determine and compare the economic impacts of the main components of the Nomadic Livestock Production System in this studies before and after settlement the benefits and costs evaluation of livestock production systems are based on the impact of ecological changes ...  Read More

Land cover and rangeland classification map using Land sat satellite image (TM) (Case study) Namrood watershed

Mahmood Goudarzi; Mahdi Farahpour; Alireza Mosav

Volume 13, Issue 3 , February 2006, Pages 265-277

Abstract
  In Iran, like many other developing countries, high population growth rate causes unfairly uses of natural resources and consequently land cover change. Therefore, detection of land cover (rangelands, irrigated and rainfed agricultural lands, urban areas…) changes can influence local planning ...  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