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 ()
Investigation of Classification Tree Analysis Algorithm Using Landsat 8 and Sentinel 2 Satellite Images and Visual Interpretation of Google Earth Images in Separation and Classification of Plant Ecological Units

Samaneh Sadat Mahzooni-Kachapi; Ataollah Ebrahimi; Pejman Tahmasebi; Mohammad Hassan Jouri

Volume 29, Issue 4 , January 2023, , Pages 608-626

Abstract
  One of the most important methods of extracting information from satellite data is various image classification techniques. The current research was conducted to separate and classify plant ecological units by classification tree analysis algorithm on satellite images and also visual interpretation of ...  Read More

Comparison of sampling pattern and plot dimensions, to estimate the percentage of crown cover and forage production in plant communities with different distribution patterns (Study area: Choghakhor Rangelands Chaharmahal and Bakhtiari province, Iran)

Jamal Imani; Ataollah Ebrahimi; Bahram Gholinejad; Pejman Tahmasebi

Volume 28, Issue 4 , November 2021, , Pages 640-651

Abstract
        In the present study, we compared different sampling patterns and different plot dimensions to estimate the percentage of canopy cover and forage production in rangeland habitats around Choghakhor Wetland. The choice of sampling method was based on the opinion of the researcher. ...  Read More

Comparison ground samples establishing, number and areas in Landsat 8, 30×30 pixels to aware correlation plant cover percentage with NDVI index in three study areas (Study area: Rangelands around Choghakhor Dam Lake in Chaharmahal & Bakhtiari province)

Jamal Imani; Ataollah Ebrahimi; Pejman tahmasebi; Bahram Gholinejad

Volume 24, Issue 2 , July 2017, , Pages 429-440

Abstract
  The use of satellite data is one of the proper methods, which makes studying ecosystems less costly. This research was carried out to determine the correlation among the vegetation cover of dominant species in three sites with the NDVI index. For this purpose, a study was conducted on three different ...  Read More

Land cover change prediction in Sabzkouh protected area using CA-Markov modeling

Zahra Abolalizadeh; Ataollah Ebrahimi

Volume 22, Issue 1 , June 2015, , Pages 21-30

Abstract
  Sabzkouh protected area is located in central Zagros. This area, with a variety of natural ecosystems and landscapes, is very rich from the point of diversity of climate, topography, habitats and wildlife. Its ecosystems, like other semi-arid ecosystems of Iran, have undergone changes in their structure ...  Read More