Volume 77 (2024)
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 Productivity in Kouhdasht, its Spatio-Temporal Patterns and Relation to Meteorological Variables

Moslem Borji Hassan Gavyar; Hadi Eskandari Dameneh; Hassan Khosravi

Volume 69, Issue 3 , December 2016, , Pages 561-574


  Nowadays, temperature increase, rainfall decrease and its effect on the time dynamics of carbon fixation cycle still are faced by many uncertainties. Net Primary Production (NPP) is one of the main factors of carbon cycle; precipitation and temperature measurement are known as two useful tools to study ...  Read More

Investigation on relation between rangelands production with effective climatic parameters and drought indices in Noudushan, Iran

samaneh Mohammadi Moghaddam; Abolfazl Mosaedi; Mohammad Jankju; Mansour Mesdaghi

Volume 68, Issue 1 , June 2015, , Pages 131-148


    Although precipitation is the most important factor which effects rangeland production, but there is little information on the relationship between production and the interactions of climatic factors and specially drought indices. .In this research, the relation between production and climatic ...  Read More

Application of GIS for calculation of runoff (Case study: Kechik Watershed, Golestan province)

N. Noura; A. Kabir

Volume 62, Issue 1 , June 2009, , Pages 153-166

  In this paper the utilization of GIS for the parameterization of rainfall- runoff process, physically based hydrological model components is described. The hytrogeneity of soil and vegetation in a catchment can be expressed with distribution functions of infiltration and soil storage capacities which ...  Read More