Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 71 (2018)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Landslide Hazard Zonation Using SMCE Method and AHP Technic (Case Study: Hafshejan Watershed, Chaharmahal-o-Bakhtiari)

Payam Ebrahimi; mehdi Eslah; Maryam Azarakhshi

Volume 70, Issue 1 , June 2017, Pages 1-18


  One kind of the mass wasting which takes much toll and leaves much damage in the world and many locations in Iran is landslide. Landslide susceptibility mapping allows recognizing susceptible areas to be considered in environmental programs. Present research is aimed at Landslide susceptibility mapping ...  Read More

Effect of sampling group and life-form on estimation ofrelationship between forage production and canopy cover

Ataollah Ebrahimi

Volume 70, Issue 1 , June 2017, Pages 19-30


  Canopy cover and forage production have always been two important indicators in rangeland assessment, which sometimes are applied as surrogates of each other. These two indicators are widely used in rangeland studies and have a vital role in evaluation of rangeland structure and functions. Occasionally, ...  Read More

An Analysis of the Factors Affecting the Use of Information Resources and Communication Channels by ranchers to participate in rangelands rehabilitation and restoration projects (Dehgolan Township)

Farzad Ahmadi; Ghodratollah Heidari; Faatemeh Shafiee

Volume 70, Issue 1 , June 2017, Pages 31-41


  The purpose of this research was to investigate the factors affecting the use of information resources and communication channels by the Dehgoln Township ranchers to participate in rangelands rehabilitation and restoration projects. The study consisted of all ranchers (N=80) in the Dehgolan county, located ...  Read More

Effect of fire intensity on soil seed bank density of plant functional groups (case study: Golestan national park)

Mina Bashmaghi; Reza Erfanzadeh; Mahdi Abedi

Volume 70, Issue 1 , June 2017, Pages 43-55


  In the current study, the variation of soil seed bank density was evaluated in two different fire severities, i.e. low and high. Soil sampling was done in Sharlegh site, Golestan national park. Therefore, 5 soil samples for both grass patches and shrub patches in each burnt and control sites were selected. ...  Read More

Suspended sediment fingerprinting and uncertainty estimation (Case study: Zidasht-Fashandak sub-watershed in Taleghan)

aboalhasan fathabadi; Ali Salajegheh; hamid pezeshk; Aliakbar Nazari Samani; hamed rouhani

Volume 70, Issue 1 , June 2017, Pages 57-69


  In order to manage and implement conservational activities in watershed successfully, it is necessary to determine the sediment sources. In recent years, sediment fingerpering techniques have been used for estimating sediment sources contribution. With respect to small source samples, having many answer ...  Read More

Assessment of social capital in beneficiaries' network in toward local sustainable development (Case study: South Khorasan province, RFLDL project)

Davood Hasanabadi; Ahmad Haj-Alizadeh; Masood Heidarvand

Volume 70, Issue 1 , June 2017, Pages 71-86


  Social capital is one of the main factors for local sustainable development and social empowerment. The objective of present research is social capital assessment to achieve local sustainable development in Se-Qaleh city, Sarayan district in South Khorasan province, where the international RFLDL project ...  Read More

Simulation of Daily Stream Flows in Semi-Arid Mountainous Watersheds using Hydrological Simulation FORTRAN Program (HSPF)

Ja'afar Dastorani; Mohammad Mahdavi; Ali Salajegheh; Ahmad Fakheri Fard

Volume 70, Issue 1 , June 2017, Pages 87-100


  Hydrological Simulation FORTRAN Program (HSPF) has long been used in modeling watersheds and many studies have been carried out around the world in this regard. Hablerood watershed is located in Semnan province with an area of 3200 km2 which suppies the required water, especially for farming, in Garmsar ...  Read More

Effects of Salinity Stress on Stomatal Variations of Hedysarum coronarium L. and Hedysarum criniferum Boiss.

Ghasem Ali Dianati Tilaki; Aliyeh Keshavarz; Bahram Amiri; Ehsan Sadati

Volume 70, Issue 1 , June 2017, Pages 101-110


  Effect of salt stress on the stomata variations was studied in Hedysarumcoronarium L. and HedysarumcriniferumBoiss., using optical microscope. The experimental design was a two factorial (species treatments and salt concentrations including 0, 100, 200, 250 mMNaCl) which arranged in a completely randomized ...  Read More

Prioritization the problems facing the implementation of Sedentarization nomads in northern Khorasan Based on analytic hierarchy process

Emad Zakeri; Mahdi Ghorbani; Ali Bozorgmehr; Hojatollah Rabani Nasab

Volume 70, Issue 1 , June 2017, Pages 111-123


  Current nomad settlement programs seek improving the quality of nomads’ life as their ultimate goal. However, it seems some of these programs failed due to some problems such as socio- economic problems that appear after settlement or due to the lack of proper preliminary studies before the implementation. ...  Read More

Dynamics of Sediment Hysteresis Patterns during Storm Events

Pari Saeidi; Seyed Hamidreza Sadeghi; Abdoulrasoul Telvari

Volume 70, Issue 1 , June 2017, Pages 125-138


  Understanding and quantifying the dynamics of suspended sediment transport is essential to control soil erosion and implement appropriate mitigation practices to reduce stream suspendedsediment and on-site and off-site effects of sediment transport. However, the quantification and the interpretation ...  Read More

Investigation of the Quality of Plant Species Parts in Different Phenological Stages Using NIRs (Case Study: Rangelands of Nodooshan-Yazd)

razie shahbandari; Hossein Arzani; naser baghestani meybodi; Mohammad Ali Zare Chahouki

Volume 70, Issue 1 , June 2017, Pages 139-149


  The most important factor affecting forage quality is phenological stage that if it is recognized correctly, the appropriate grazing time will be determined. In this study, four species including Artemisia sieberi, Salsolakerneri, AelieniasubaphyllaandEurotiaceratoides in different phenological stages ...  Read More

Assessment of logistic and multivariate regression Models for Landslide hazard zonation (Case Study: Marbor basin)

ALIREZA Arabameri; kourosh shirani; Mahdi Tazeh

Volume 70, Issue 1 , June 2017, Pages 151-168


  Present study seeks to identify effective factors in landslide occurrence and landslide sensitivity zonation using logistic regression and multivariate linear regression. Accordingly, through the interpretation of arial photos with scale of 1:40000, geological, topographic maps, and field survey using ...  Read More

Technical assessment of watershed operating steps in sologan aquifers basin

golaleh ghaffari; Hasan Ahmadi; Omid Bahmani; Ali Akbar Nazari Samani

Volume 70, Issue 1 , June 2017, Pages 169-180


  Although more than 45 years has passed since the first time operating watershed projects were run inside the country and considering the increasing budget that is being allocated to such projects, terrible soil erosion, natural resource degradation and the dazzling and painful consequences of such events ...  Read More

Forecasting and Comparison of Future Climate Change by Using of GCM Models under Different Scenarios in Talar Watershed of Mazandaran Province

Abbas Gholami; Kaka Shahedi; Mahmud Habibneghad; Mahdi Vafakhah; Karim Solymani

Volume 70, Issue 1 , June 2017, Pages 181-196


  Present study is aimed at forecasting and comparison of future climate change by using GCM model (General circulation model) under different climate scenarios in Talar watershed of Mazandaran province. Regarding the data of existing stations, to study the climate change phenomenon in Talar watershed, ...  Read More

Determining the most important geomorphometric parameters in classification of desert plains with using artificial neural networks and sensitivity analysis

Gholamreza Zehtabian; Hassan Ahmadi; Aliakbar Nazari Samani; amir houshang ehsani; Mahdi Tazeh

Volume 70, Issue 1 , June 2017, Pages 197-206


  Plains are one of the most important geomorphological units and different parameters have been considered for classification of plain areas. One of most common classifications in natural resources studies in Iran entailing different qualitative and quantitative factors is: bare plains, apandazh plain ...  Read More

Investigation of the efficiency of SINMAP and SHALSTAB Physically-based Models for landslide hazard zonation (Case Study: Chahar Donge region, Mazandaran Province)

Alireza Motevali; Ali Talebi; Mehrdad Safaei; Mohammadreza Ekhtesasi

Volume 70, Issue 1 , June 2017, Pages 207-218


  Landslide is one of the most important geological phenomena in northern slopes of Iran (Alborz) which causes considerable damages gradually. In the last few years, due to unfavorable changes in land uses and increasing degradation of pastures, forests and farmlands as well as implementation of inappropriate ...  Read More

Sediment concentration modeling in rill flow using the Adaptive Nero Fuzzy Inference System (ANFIS) in semi arid region

Suma Mohamadpur; Hamed Rouhani; Hojat Ghorbani Vaghei; Seyed Morteza Seyedian; Abulhasan Fath Abadi

Volume 70, Issue 1 , June 2017, Pages 219-234


  In many semi-arid regions of Iran, soil erosion has turned into a serious environmental problem affecting land productivity, nutrient loss, water quality, and fresh water ecosystems. Rates of soil loss differ according to erosion type and land degradation processes. Rill erosion is commonly observed ...  Read More

Evaluating of Efficiency of Empirical Formulae Based on Grain-Size and Infiltration Equations for Estimating Sediment Hydraulic Conductivity (Case Study: Jarmeh Flood Spreading System, Khuzestan Province)

mohammad moazami; Sadat Feiznia; Majid Khayyat Kholghi; Arash Malekian

Volume 70, Issue 1 , June 2017, Pages 235-246


  Hydraulic conductivity is an important parameter for controling water flow through porous media. Hence, accurate estimation of this parameter is important for evaluating flow exchange between surface water and groundwater. In this study, 12 empirical formulae based on grain-size and 4 infiltration equations ...  Read More

Investigating Low Flows trend Assessment in Isfahan Province

Masud Nasri; Reza Modares

Volume 70, Issue 1 , June 2017, Pages 247-256


  Although a number of studies have been carried out around meteorological drought in Isfahan province, there is no specific study about hydrologic drought. In this study, low flows trend was analysed for the first time as the most important indicator of hydrologic drought in Isfahan province watersheds. ...  Read More

Study of the effect of environmental factors on vegetation diversity in Eshtehard rangelands

khadije naghizadeh; mohammad jafari; hosein azarnivand; mohamad ali zare chahiiki; Hamidreza Abasi

Volume 70, Issue 1 , June 2017, Pages 257-262


  The effect of environmental factors on vegetation diversity in Eshtehard rangeland was studied in present study. Sampling was done using Minimal Area method. To measure the plant properties in each type, regarding the extent of each type, three 500 meter transects with 50 meter intervals between transects ...  Read More