Volume 76 (2023)
Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 71 (2018)
Volume 70 (2017)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Net primary production variations under the effect of topographic factors in mountain rangelands of Namin county

Elnaz Hassanzadeh Kuhsareh; ardavan ghorbani; Mehdi Moameri; kazem hashemi majd; Ardeshir pounemati

Volume 70, Issue 4 , January 2018, , Pages 851-867


  The purpose of this study was to determine the effects of altitude, slope, aspect and topographic index on life forms and total net primary production (NPP) in mountains meadows in Fandoghlou in Namin county in Ardabil province. NPP in three altitude, slope, topographic index classes and four aspect ...  Read More

Carbon and nitrogen allocation in aerial and underground organ of Artemisia austriaca Jacq. in different grazing intensities (Case study: Sabalan Darvishchae Rangelands)

Maryam Asadi

Volume 70, Issue 4 , January 2018, , Pages 895-908


  In this research, was investigated the effect of grazing intensities on carbon and nitrogen allocation in aerial and belowground biomass of Artemisia austriaca in summer rangelands of Darvishchae (including Alvares, Aldeshin and Asbmarz villages) at southern slope of Sabalan. The study areas based on ...  Read More

Estimating Biomass using Landsat Satellite Images (Case study: Marak, Birjand)

sahar sabaghzade; Mohammad Zare; Mohamad Hosein Mokhtari

Volume 69, Issue 4 , March 2017, , Pages 907-920


  Vegetation is an important component of each global ecosystem. Determining of the biomass of plant is important to assess its impact upon climate, soil erosion, and as well for management of natural resources. The aim of this study was to estimate biomass using vegetation indices based on remote sensing. ...  Read More