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 ()
The effect of polymer composition with desert sand on Panicum antidotale growth

Shahram Banedjschafie; Esmaeil Rahbar; Farhad Khaksarian

Volume 16, Issue 3 , December 2009, , Pages 305-316

Abstract
  The effect of different level of polymer water absorbent (supper A200) mixed with desert sand were studied in comparing to pure sand and clay soil on survival and growth of Panicum antidotale in pot condition  in Research Institute of Forests and Rangeland, Tehran, Iran for three years. The polymer ...  Read More

Trend of runoff changes in the watershed of Kordan River

Esmaeil Rahbar; Masoud Masoudi

Volume 16, Issue 2 , December 2009, , Pages 161-173

Abstract
  In the present paper, trends of rainfall, runoff and temperature in the Kordan sub-basin which is one of the sub-basins of Qazvin basin were investigated for period of 1966-95. This sub-basin with 360 km2 area is located in the north eastern part of Qazvin basin with a different range of elevation from ...  Read More

Salinity effects on water uptake ability of superabsorbent polymer and manure

Esmaeil Rahbar; Shahram Banedjschafie

Volume 16, Issue 2 , December 2009, , Pages 209-223

Abstract
  The superabsorbent polymers absorb and retain large quantities of water when applied into the soil. This capability is due to its physical and chemical properties. The objectives of this study were to investigate the effects of soil salts on polymer and manure water uptake ability under repeated wetting ...  Read More

Growth of Haloxylon spp. plantation, ten years after thinning, in Gonabad.

Frydoon Ferydoony-Nasry; Ismaeil Rahbar; Orujali karimi

Volume 13, Issue 4 , February 2007, , Pages 385-393

Abstract
  Based on a general model, estimated number of population density for ten years old Haloxylon plantation in Gonabad was 150 trees per hectar; therefore, six density treatments were selected around the estimated density; two density treatments over estimated number, two under it, and existing density as ...  Read More

Growth of Haloxylon spp. plantation, ten years after thinning, in Sabzevar

Mohammad javad Ahmadian yazdi; Esmaeil Rahbar; Orujali Karimi

Volume 14, Issue 3 , January 2007, , Pages 313-322

Abstract
  A general model was developed to explain the interrelationships between soil saturation percentage, mean annual precipitation, and population density on growth and vigority of planted Haloxylon trees. Based on the model, estimated number of population density for 7 years old Haloxylon plantation in Sabzevar ...  Read More

Effect of a super absorbent Polymers on moisture characteristics of sandy soils

shahram Banedjschafie; Esmaeil Rahbar; Farhad Khaksarian

Volume 13, Issue 2 , February 2006, , Pages 139-144

Abstract
  Commercial producers of polymers claim that their polymer materials hold plentiful of water using low suction so that plants are able to have access to it. If this is true, then polymers could be used to increase desired physical characteristics of sandy soils in areas with dry climatic conditions. Based ...  Read More