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)
Determination of the relationship between variability of rangeland species forage yield and drought, to forecast forage production using meteorological drought indices

Khaled Osati; Hamed Joneidi; Nahid Azizi

Volume 73, Issue 2 , September 2020, , Pages 239-255


  Prediction of rangeland species forage yield is one of the most effective tools for planning and policymaking of natural resources in each country. Climate variables (precipitation and temperature) play an important role in forecasting rangeland species production. In the present study, the forages yields ...  Read More

Effect of conversion of rangeland to Forest cultivation on carbon emission changing in soil (case study: Sanandaj Rangeland)

Farnoosh zareii; Hamed Joneidi; Parviz karami

Volume 72, Issue 2 , September 2019, , Pages 391-408


  This research was carried out to evaluate the effect of rangeland conversion to afforestation with Cupressuss arizonica and Celtic caucasica on soil carbon emission. In order to determine the rate of carbon and carbon dioxide emission by tele-alkaline method with a stacking chamber, monthly was performed ...  Read More

Effect of converting rangeland to afforestation on carbon sequestration and some properties of soil (Case study: Hassan Abad afforestation, Sanandaj)

nasibe ghanbari; hossein azarnivand; hamed joneidi jafari; mohammad jafari

Volume 71, Issue 3 , December 2018, , Pages 747-758


  This study aimed to effect of converting rangeland to afforestation on carbon and nitrogen storage was done in forested areas of Hassan Abad in Sanandaj. Masses of studied was include Cupressus arizonica, Pinus eldarica, Fraxinus rotundifolia, Robinia psedoacacia and Thuja orientalis whit an average ...  Read More

The changes in monthly and seasonal values of carbon emission in different grazing intensities (Case study: Ghoosheh, Semnan)

Ahmad Sadeghipour; nadia kamali; Paria Kamali; Hamed Joneidi

Volume 67, Issue 3 , December 2014, , Pages 451-458


  This study investigates monthly and seasonal variations of carbon emission from the soil at different grazing intensities. Three areas of exclosure, low and high grazing intensities were selected in Ghoosheh region of Semnan province. Carbon emission was measured monthly, in each treatment applying alkali ...  Read More