Volume 38 (2024)
Volume 37 (2023)
Volume 36 (2022)
Volume 35 (2021)
Volume 34 (2020)
Volume 33 (2019)
Volume 32 (2018)
Volume 31 (2017)
Volume 30 (2016)
Volume 29 (2015)
Volume 28 (2014)
Volume 26 (2012)
Volume 25 (2011)
Volume 24 (2010)
Volume 23 (2009)
Volume 22 (2008)
Research Article
Development of Simulation-Optimization Model for Protection of Flood Areas

O. Bozorg Haddad; S. Khosrowshahi; Mahboubeh Zarezadeh; P. Javan

Volume 27, Issue 3 , July and August 2013, Pages 462-471


  The man’s craving for water has inspired many civilizations to be formed near rivers. The social and economic destructive consequences of flood in human societies are considered undeniable facts. Today human trespasses on riversides and also vegetation destruction have caused increase in flood damages. ...  Read More

Research Article
The Estimation of Soil Cation Exchange Capacity in Disturbed and Undisturbed Soils Using Artificial Neural Networks and Multiple Regressions

H. Kashi; H. Ghorbani; S. Emamgholizadeh; S.A.A. Hashemi

Volume 27, Issue 3 , July and August 2013, Pages 472-484


  With respect to the problem of direct measurement of soil parameters in recent year using indirect method such as artificial neural networks has been considered. In the present study, 200 soil samples were collected from Ghoshe location in Semnan province. Half of samples were collected from disturbed ...  Read More

Research Article
Effects of Arbuscular Mycorrhizal Fungus on Growth and Physiological Parameters of Rough Lemon Rootstock under Water Deficit Conditions

M. Zarei; Z. Paymaneh; abdolmajid ronaghi; A.A. Kamgar Haghighi; A. Shahsavar

Volume 27, Issue 3 , July and August 2013, Pages 485-494


  Rootstocks are of primary importance to the citrus industry. Rough lemon (Citrus jambhiri L.) is one of major and widely used rootstocks in Citrus production. The experiment was a completely randomized design in a factorial arrangement with three replications. The factors were mycorrhizal treatments ...  Read More

Research Article
Using the WEAP Model to Assess The Impact of Irrigation Water Use Management on Water Resources of Neyshabour Plane

S. Kermanshahi; K. Davari; majid hashemi nia; A. Farid Hosseini; H. Ansari

Volume 27, Issue 3 , July and August 2013, Pages 495-505


  The requiring of reducing agricultural water demand as the world’s largest consumer of water, for having sustainable water resources is not concealed to anyone. With measurements such as increasing irrigation efficiency, changing in cropping pattern, reducing the cultivation area, etc, this goal can ...  Read More

Research Article
Comparison of Efficiency and Accuracy of USLE, AUSLE, MUSLE-S and USLEM Models for Estimating Amount of Erosion and Sedimentation On Based of Storm-Wise Event (Case study: Sanganeh Soil Conservation Research Institute of Mashhad)

S. Rahmati; M.R. Javadi; Abodlsaleh Rangavar

Volume 27, Issue 3 , July and August 2013, Pages 506-514


  Empirical models specially event-based versions for estimating erosion are site specific, so calibration is essential for designing soil conservation practices measures. In this study, the efficiency of Universal soil Loss Equation and other event-based versions include USLEM, MUSLE-S and AUSLE evaluated ...  Read More

Research Article
The Effect of Sample Size on the Accuracy of Estimation of the Soil Salinity and Sodicity Status using Different Estimators

I. Esfandiarpour Borujeni

Volume 27, Issue 3 , July and August 2013, Pages 515-524


  Soil salinity and sodicity are considered as the important factors limiting the plants growth. This study was conducted to assess the influence of the sample size on the accuracy of estimation of soil salinity and sodicity status, made by ordinary kriging, inverse distance weighting and spline estimators ...  Read More

Research Article
Approximate Solutions to Richards’ Equation for Soil Water Infiltration Using Scaling

M. Sadeghi; B. Ghahraman; A.N. Ziaei; K. Davary

Volume 27, Issue 3 , July and August 2013, Pages 525-536


  After introducing similar media theory, many scaling methods were developed and have been widely used to cope with soil variability problem as well as to achieve invariant solutions of Richards’ equation. Recently, a method was developed for scaling Richards’ equation (RE) for dissimilar soils such ...  Read More

Research Article
Assessment of Hydrological Effects of Climate Change in Gourganroud River Basin

M. Azari; Hamid Reza Moradi; B. Saghafian; M. Faramarzi

Volume 27, Issue 3 , July and August 2013, Pages 537-547


  Climate change is one of the most significant challenges that all living matters on the Earth needs to face. A warmer climate will accelerate the hydrologic cycle, altering rainfall, magnitude and timing of runoff.Iran might become one of the most vulnerable areas in the world regarding climate change. ...  Read More

Research Article
Estimation of Background Concentration of Selected Heavy Metals for Pollution Assessment of Surface Soils of Mazandaran Province, Iran

B. Azimzadeh; H. Khademi

Volume 27, Issue 3 , July and August 2013, Pages 548-559


  One of the main problems in soil pollution evaluation is the lack of regional standards. The objectives of this study were (i) to estimate the background concentration of some heavy metals for environmental assessment and, (ii) to locate heavy metal polluted soils in part of central Mazandaran Province. ...  Read More

Research Article
Use of Multivariate Statistics and Geostatistics to Differentiate the Lithologic and Anthropogenic Sources of some Heavy Metals in Zobahan Industrial District, Isfahan Province

salman naimi marandi; shamsollah Ayoubi; B. Azimzadeh

Volume 27, Issue 3 , July and August 2013, Pages 560-569


  Soil pollution by heavy metals is an important environment issue throughout the world. Heavy metals’ origin, accumulation, and distribution in soil have been the focus of much attention by many researchers. The objective of this study was to recognize the sources of some heavy metals in surface soils ...  Read More

Research Article
Influence of Sill and Artificial Roughness over Adverse Bed Slopes on Hydraulic Jump Characteristics

P. Parsamehr; Davoud Farsadi; A. Hosseinzadeh Dalir

Volume 27, Issue 3 , July and August 2013, Pages 581-591


  Hydraulic jump plays a significant role in dissipation of kinetic energy downstream of hydraulic structures in a stilling basin. In the present research, hydraulic jump characteristics on roughened bed with half cylindrical shape bars and rectangular bed sill on two adverse slopes of 1 and 1.5 % and ...  Read More

Research Article
Determination of Stable Side Slops in Irrigation Canals

H. Ahmadi; V.R. Verdinejad; M. Hemati

Volume 27, Issue 3 , July and August 2013, Pages 603-612


  The main objective of this research was to find the stable side slope of irrigation canals, considering type of subgrade materials as well as canal depth. For this purpose two methods of limit equilibrium and finite element methods were used for stability analysis. In respect to the geotechnical properties ...  Read More

Research Article
A Combined Strategy of Entropy and Spatio-Temporal Kriging in Determining Optimal Network for Groundwater Quality Monitoring of Mashhad Basin

M. Akbarzadeh; B. Ghahraman

Volume 27, Issue 3 , July and August 2013, Pages 613-629


  In geo-statistics, prediction of an unknown value of random field has been performed in specified time and position, using spatio-temporal Kriging. In some circumstances, a suitable covariate increase the estimation prediction. Geo-statistical methods of Universal Kriging (UK) and Kriging with External ...  Read More

Research Article
Pedotransfer Functions for Estimating Soil Volumetric Moisture Content Based on Soil Fractal Dimension
Volume 27, Issue 3 , July and August 2013, Pages 630-641


  Estimation of soil moisture content at different soil suctions is preferred to its determination due to required cost and time. The aim of the present work was to explore the relationship between soil texture fractal dimension and soil volumetric water content. A dataset of 195 soil samples from UNSODA ...  Read More

Research Article
Trend Assessment of Land Use Changes Using Remote Sensing Technique and its Relationship with Streamflows Trend (Case Study: The East Sub-Basins of Urmia Lake)

F. Fathian; S. Morid; S. Arshad

Volume 27, Issue 3 , July and August 2013, Pages 642-655


  The drawdown trend of the water level in Urmia Lake poses a serious problem for northwestern Iran that will have a negative impact on the agriculture and industry. This research investigated the possible causes of this adversity by estimating trends in the time series of hydro-climatic variables of the ...  Read More

Research Article
Validation of RothC Model for Evaluation of Carbon Sequestration in a Restorated Ecosystem Under Two Different Climatic Scenarios

J. Fallahi; P. Rezvani Moghaddam; M. Nassiri Mahallati; Mohammad Ali Behdani

Volume 27, Issue 3 , July and August 2013, Pages 656-668


  Climate change by increasing concentrations of greenhouse gases, particularly carbon dioxide, has led to increase attention to the carbon sequestration through the restoration and protection of vegetation cover. In this regards, ecosystems of arid regions have a special importance. In this study the ...  Read More