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)
Spatial Prediction of Soil Surface Organic Carbon Using Spectral and Non-Spectral Factors (Case Study; Asuran Summer Rangeland, Semnan Province)

saeedeh Nateghi; Rostam Khalifehzadeh; Mahshid Souri; Morteza Khodagholi

Volume 74, Issue 1 , June 2021, , Pages 177-188


  Soil organic carbon is one of the most important indicators of soil quality. The purpose of this study is to study the spectral and non-spectral behaviors of soil in order to estimate the organic carbon of topsoil using factor analysis and multiple regression methods in the semi-steppe rangelands of ...  Read More

The effect of the morphometric factors on the peak flow using the Structural Equation Techniques (PLS) in the Southern Watersheds, Iran

hosien شظهیه; omonabin bazrafshan; Abdolreza Bahremend; Arash Malekian

Volume 71, Issue 3 , December 2018, , Pages 681-697


  The purpose of this study is the effects of the morphometric factors on peak discharge in 108 hydrometric stations in the southern watersheds, Iran. After homogeneous tests and random data, a time period (from 1983-1984 to 2013-2014 was chosen and used to choose the best probability distribution function. ...  Read More