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 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Determining the effective determinants of rangeland performance using Analytical Hierarchy Process (AHP); case study of range manager community in the winter pastures of Semnan province

Seyed Hasan Kaboli; حسین آذرنیوند; علی اکبر مهرابی; حسین ارزانی; سید مهدی حشمت الواعظین

Volume 68, Issue 4 , January 2016, Pages 675-689


  One of the conventional methods in identifying issues or making decisions in communities is considering the views of individuals of the community. The aim of this research is to determine the effective determinants of rangeland performance according to the views of range manager community in winter pastures ...  Read More

Assessment of aggregate stability and determination of instability mechanism of marly soils in Taleghan watershed

Mohsen Armin; Hassan Ahmadi; hasan Rouhipour; Ali Salajegheh; mohammad Hossein Mahdian; Vajihe Ghorban nia kheybari

Volume 68, Issue 4 , January 2016, Pages 691-710


  Due to the constraints in determining of soil susceptibility to water erosion or soil erodibility through field tests, use of laboratory methods on small soil samples, are easy to implement and far less expensive and time-consuming. among different laboratory methods based on the soil properties, those ...  Read More

Evaluation of Desertification based on climate and water criteria (Case study: Kashan plain)

Reyhaneh Masoudi; Gholamreza Zehtabian; Hassan Ahmadi; Shahram Khalighi sigarudi

Volume 68, Issue 4 , January 2016, Pages 711-723


  Desertification is a major problem in many countries. International efforts have been considered to combat and prevent this phenomenon. The most important cases of these measures are the United Nations Convention to Combat Desertification. In this study, IMDPA model and GIS were used to assess desertification ...  Read More

Assessment on the Effects of Super Absorbent Polymer Application on Plants Survival and Costs in Planting Projects (Case study: Semnan Province)

Mohammad Jafari; ِAli Tavili; Yahya Esmaeilpour; Hossein Azarnivand; Mohammad Zare Chahouki; Hamid Reza Asghari

Volume 68, Issue 4 , January 2016, Pages 725-738


  Abstract In this study the effects and costs of application of two kinds of super absorbent polymer on the establishment and surviving of seedlings was investigated. Experiments were done in the field and on two kind of soil with different salinity (EC: 4.5 and 8 dsm-1). The results showed: the establishment ...  Read More

Effects of cement mulch combinations on sand dunes fixation

Mohammad Reza Ekhtesasi; Fateme Hazirei

Volume 68, Issue 4 , January 2016, Pages 739-750


  Mulching is one of the methods of sand movement control to prepare condition for permanent fixation. Oil mulches have been used in Iran. Because of high cost and negative environmental impacts of oil mulches, changes in mulches type and mulching methods is vital. Therefore, for the first time in Iran, ...  Read More

Determining of landuse effects on sediment yield of watershed through sediment fingerprinting technique of suspendedload and bed materials in Taleghani catchment, Khorram Abad

Kazem Nosrati; Frouzan Ahmadi; Ali Akbar Nazari Samani; Mohammad Reza Servati

Volume 68, Issue 4 , January 2016, Pages 751-765


  Soil erosion is one of the most destructive phenomena which cause significant ecological changes in many areas. Soil conservation and erosion control is essential because of the irreparable damage caused by soil erosion. Soil conservation programs will not achieve until to find adequate methods of combating ...  Read More

Analysis of land use changes impacts and demographic changes (Case study: Taleghan barrier surrounding villages)

Saeide Heydari; Ali Akbar Mehrabi; Mohsen Mohseni Saravi; Sakine Saedi

Volume 68, Issue 4 , January 2016, Pages 767-778


  The concept of land use transition highlights that land use change is non-linear and is associated with other societal and biophysical system changes. Changes in human systems has resulted in changes in the natural system such as changes in land use. Land use change causes not only environmental factors ...  Read More

Assessing of interpolation methods in order to snow water equivalent estimation

Sharbanoo Abbasi Jondani; Ali Fathzadeh

Volume 68, Issue 4 , January 2016, Pages 779-793


  Snow is one of the main components of hydrological cycle in most of mountainous basins. Since collecting the snow data (e.g. snow water equivalent data) is very difficult and time consuming, some effort is necessary to develop methods to estimate spatially variation of snow depth distribution. In the ...  Read More

Sensitivity Analysis of objective functions in linear programming model for land use optimization in the Adineh-Masjed watershed

Heshmatollah Agha Razi; Mehdi Mardian; Ali Akbar Davoudi Rad; Davud Nik Kami

Volume 68, Issue 4 , January 2016, Pages 795-808


  Land use Optimization using linear programing is a method in watershed management for access to production sustainability and decreasing of soil erosion. The sensitivity analysis of the model can with investigation of results influence form changes in input parameters, lead to decrease the uncertainty ...  Read More

Groundwater quality study for agricultural purposes by geostatistical analysis (Case study: Hashtgerd Plain, Alborz Province)

Arash Malekian; Mahsa Mirdashtvan

Volume 68, Issue 4 , January 2016, Pages 809-820


  Nowadays, with the increasing exploitation of groundwater resources, optimal use of these resources is more and more necessary. geostatistical methods can be used to assess and monitor the quality of groundwater resources. Hashtgerd Plain is the case study of this investigation. In this study firstly, ...  Read More

Regional flood frequency analysis using multiple regression method (Case study: hydrometric stations of Qazvin province)

Jamal Mosaffaie; Davoud Akhzari; Saeed Rashvand; Javad Ataei

Volume 68, Issue 4 , January 2016, Pages 821-833


  One of the important parameters in the design of flood control structures is to determine flood peak discharge for various return periods. A primary issue of planners in the face with flood is lack of data or insufficient data. One of the most reliable strategies is generalizing the results from sites ...  Read More

Comparing plant functional types in an old-field and a natural rangeland vegetation

Mohammad Jankju; Fariba Noedoost; Fahimeh Rafiei

Volume 68, Issue 4 , January 2016, Pages 835-851


  This research was conducted to compare plant functional types (PFT) and traits in an old-field (abandoned for 28 years) and a control site, in the Baharkish rangelands, Quchan, Iran. In the both sites, 40 randomized quadrates were established. Floristic list, frequency, canopy cover and 20 vegetative, ...  Read More

Mapping Soil degradation based on Geopedological method and GLASOD model using GIS in East Qazvin Province

khaled Hajimaleki; rouhollah mousavi; Manochehr Gorji; Fereidon Sarmadian

Volume 68, Issue 4 , January 2016, Pages 853-867


  Nowadays, the importance of soil conservation in agriculture and natural resources, with the goal of preventing its deterioration and degradation are necessary. Soil and land degradation as a direct cause of the threat to the global environment and human welfare is evident. In this study soil degradation ...  Read More

Autecology study of Platychaete aucheri Boiss. in arid ecosystems, south of Fars province

Gholam Abbas Ghanbarian; Zahra Yazdanpanah

Volume 68, Issue 4 , January 2016, Pages 869-884


  َAutecology of Platychaete aucheri Boiss. was studies in south parts of Fars. Climatic data, topography and soil characteristics , vegetation attributes and phenology of desire species were studies. The nutritive value in three major stages was determined. The results showed the plant is able to grow ...  Read More

Investigation of the role of temporal distribution of precipitation on forage production value of the rangeland

Maryam Azarakhshi; Mohammad Mahdavi; Hasan Ahmadi; Hosein Arzani; Jalil Farzadmehr

Volume 68, Issue 4 , January 2016, Pages 885-899


  Plants cover composition, condition, trend, production, and grazing capacity of the rangeland change annually. In this research, the role of temporal rainfall distribution on rangeland production was assessed. This research had down in the rangelands of Ilam (with semiarid to semi humid climate) and ...  Read More