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)
Issue 4 March 2013, Pages 433-580
Issue 3 December 2012, Pages 277-432
Issue 2 September 2012, Pages 159-276
Volume 63 (2010)
Volume 62 (2009)
Comparison of water and wind erosion functions in soil degradation of arid and semiarid lands (Case Study: Dashte-Jeihoon of Khamir County, Hormozgan province)

M. Akbarian; S. H. Kaboli; N. Moradi

Volume 65, Issue 4 , March 2013, Pages 433-448


  Determining the relative sensitivity of land to erosion and its factors, could be the basis of soil conservation programs. The aim of this study is to compare water and wind erosion functions in land degradation of Dasht-e-Jeihoon using PSIAC and IRIFR.EA models and the source studying of aeolian sediments ...  Read More

Diversity investigation of pollen and nectar plants in apicultural utilization management of rangelands (Case Study: Ghareh Aghach Watershed)

F. Amiri; H. Arzani; E. Gavili

Volume 65, Issue 4 , March 2013, Pages 449-460


  Existence of pollen and nectar plants in vegetation composition of natural environment is essential for apiculture as one of the utilization types in multiple uses of environmental resources. Therefore, development of this strategy based on indigenous knowledge will increase stakeholder income, which ...  Read More

Spatial variation of nitrate concentrations in groundwater by Geostatistics (Case Study: Kurdan Plain)

Kh. Osati; A. Salajegheh; S. Arekhi

Volume 65, Issue 4 , March 2013, Pages 461-472


  Spatiality assessment of groundwater pollution is very important to determine water quality condition, pollution sources and management decisions. In this case, GIS and geostatistics methods can be useful tools. Spatiality of groundwater quality parameters, in relation with various land uses, can be ...  Read More

Sediment yield determination of different geological formations in Gachsaran floodwater spreading field

M. Padyab; S. Feiznia

Volume 65, Issue 4 , March 2013, Pages 473-482


  Importance of sediment storage has been expressed as being higher than that of water in floodwater spreading networks. To determine the contribution of each geological formation in sediment input of Gachsaran Floodwater Spreading Station after 12 years of flood spreading, sediment sampling was conducted ...  Read More

Autecology of Zygophyllum atriplicoides in the rangelands of Northern Khorasan province

M. Jankju; F. Noedoost

Volume 65, Issue 4 , March 2013, Pages 483-494


  Ecological studies on range plants enhance our knowledge on the rangeland ecosystems which are useful for their planning and management.  By doing field and laboratory experiments during 2008-2009, ecological conditions were studied in the main habitats of Z. atriplicoides in the rural and winter ...  Read More

Flood frequency analysis based on hybrid regression method for providing regional flood model (Case study: Khorasan Razavi province)

S. H. Hosseini; M. Abbasizadeh; M.R. Khaleghi

Volume 65, Issue 4 , March 2013, Pages 495-506


  In regions with deficient or no data, it is necessary to apply indirect methods to estimate the peak flow. Regional flood analysis is the most accurate and reliable technique in such cases. One of the regional flood methods for flood analysis in arid and semi arid regions is Hybrid technique, which was ...  Read More

Investigation of vegetation changes under precipitation in semi-steppic rangelands of Ardebil province (Case study: Arshagh Rangeland Research Site)

J. Sharifi; M. Akbarzadeh

Volume 65, Issue 4 , March 2013, Pages 507-516


  A major part of the rangelands of Iran are located in arid and semi-arid regions. In this climate, rainfall fluctuation is an important factor which affects vegetation and forage production. In dry years that rainfall decreases, surface vegetation and forage production is damaged. This study was conducted ...  Read More

Study of desertification status using IMDPA model with emphasis on water and soil criteria (Case study: Khezr Abad - Elah Abad of Yazd - plain)

E. S. Shokoohi; Gh. R. Zehtabian; A. Tavili

Volume 65, Issue 4 , March 2013, Pages 517-528


  More than 80% of Iran’s area has arid and semi arid climate. Therefore, Iran is exposed to desertification process. Practical activities in controlling desertification must be based on current desertification situation and its severity. Based on this theory, evaluating desertification rate indices ...  Read More

An investigation of environment factors’ impact on life form of plants (Case study: Javaherdeh rangelands of Ramsar)

D. Askarizadeh; Gh. A. Heshmati

Volume 65, Issue 4 , March 2013, Pages 529-540


  Abiotic factors, as topographic and physicochemical properties of soil, are the most important effective factor on vegetation in rangeland ecosystems which have the most important performances to forming and succession of plant vegetation. Ecologic management of rangelands can be desired by better understanding ...  Read More

Preference value of three species for sheep in steppe rangelandsof Iran

M. Fayaz

Volume 65, Issue 4 , March 2013, Pages 552-541


  More than half of the area of the country are rangelands. Implementing the principles of proper rangeland management and optimal use of rangeland requires proper stock grazing management. Considering the quality and quantity of forage plants, palatability and preference value of species and rates of ...  Read More

Social network analysis: A new approach in policy-making and planning of natural resources co-management

M. Ghorbani; H. Azarnivand; A.A Mehrabi; S. Bastani; M Jafari; H. Nayebi

Volume 65, Issue 4 , March 2013, Pages 553-568


  Since last decades, there has been a growing interest in the human/social dimensions of natural resources governance especially the structure of social networks in achieving to successful co-management of natural resources. Network analysis as a suitable tool in optimum planning of the “network ...  Read More

Performance of fuzzy logic in stream flow forecasting

M. Nabizadeh; A. Mosaedi; A. A. Dehghani

Volume 65, Issue 4 , March 2013, Pages 569-580


  River flow forecasting for a region has a special and important role for optimal allocation of water resources. In this research, for forecasting river flow process, Fuzzy Inference System (FIS) is used. Three parameters including precipitation, temperature and daily discharge are used for forecasting ...  Read More