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 27 (2013)
Volume 26 (2012)
Volume 25 (2011)
Volume 24 (2010)
Volume 23 (2009)
Volume 22 (2008)
Research Article
Investigation on Seepage Pattern and Design of Toe Drain in Homogenous Earth Dam on Impervious Foundation Using Physical Model and PLAXIS

N. Najafpour; M. Shayannejad; hossein samadi

Volume 28, Issue 3 , July and August 2014, Pages 451-461


  Pore pressure, seepage and drainage discharge through in earthen dams are the most important characteristics that have to be defined in order to analysis an earth dam. These parameters have been measured since beginning of building dam. In this investigation, a physical model of homogenous earth dam ...  Read More

Research Article
The Investigation The Amount of Interception in Sprinkler Irrigationin Wheat and Soybean

M. Mohajerpour; A. Alizadeh; Mohammad Mousavi baygi

Volume 28, Issue 3 , July and August 2014, Pages 462-470


  Interception is one of the important and effective parameters on ET and hydrological relation, which is ignored in many situations. In order to investigate the effectiveness of LAI and extinction coefficient on amount of interception, in this study wheat and soybean were cultivated in thelysimeters of ...  Read More

Research Article
Adopting Hierarchial Cluster Analysis to Improve The Performance of K-mean Algorithm

B. Ghahraman; K. Davary

Volume 28, Issue 3 , July and August 2014, Pages 471-480


  Due to inadequate flood data it is not always possible to fit a frequency analysis to at-site stations. Reliable results are not always guaranteed by a single clustering algorithm, so a combination of methods may be used. In this research, we considered three clustering algorithms: single linkge, complete ...  Read More

Research Article
Performance Evaluation of FAO Model for Prediction of Yield Production, Soil Water and Solute Balance under Environmental Stresses (Case Study Winter Wheat)

vahid Rezaverdinejad; M. Hemmati; H. Ahmadi; A. Shahidi; B. Ababaei

Volume 28, Issue 3 , July and August 2014, Pages 481-491


  In this study, the FAO agro-hydrological model was investigated and evaluated to predict of yield production, soil water and solute balance by winter wheat field data under water and salt stresses. For this purpose, a field experimental was conducted with three salinity levels of irrigation water include: ...  Read More

Research Article
Extraction of Static and Dynamic Reservoir Operation Rules by Genetic Programming

Habib Akbari Alashti; O. Bozorg Haddad

Volume 28, Issue 3 , July and August 2014, Pages 492-502


  Considering the necessity of desirable operation of limited water resources and assuming the significant role of dams in controlling and consuming the surface waters, highlights the advantageous of suitable operation rules for optimal and sustainable operation of dams. This study investigates the hydroelectric ...  Read More

Research Article
Effect of Vegetated Floodplain on Abutment Scour in Compound Channels

Y. Ramezani; M. Ghomeshi; H. Khozeyme Nejad

Volume 28, Issue 3 , July and August 2014, Pages 503-512


  Bridge failures due to scour at bridge abutments clarify importance of scour prediction and scour countermeasures. Most of bridge abutments are located in floodplains. One of common cases in floodplains is the existence of vegetation cover. Scope of this study is investigation on effect of vegetated ...  Read More

Research Article
Analysis of Evaluation Indicators by Opportunity Time in Furrow Irrigation

Reza Lalehzari; F. Ansari Samani; Saeid Boroomand Nasab

Volume 28, Issue 3 , July and August 2014, Pages 513-522


  Evaluation procedures have been developed for effective design and management of irrigation systems. Furrow irrigation is one of the main types of applying water in agriculture. In the present study, a new procedure for field evaluation of water distribution in furrow irrigation is proposed. For this ...  Read More

Research Article
Helmand River Flow Modeling Using Copula and Seasonal Auto Regressive Moving Average

A.A. Keikha; M. Mosannan Mozafari; M. Sabouhi; Gh. Soltani

Volume 28, Issue 3 , July and August 2014, Pages 523-533


  River flow modeling has special importance in water resources management. Since the actual river flow data are often low and they correlate and depend yearly and monthly, making the data similar to historical data is so difficult and complex. In this study, 50 year data and Seasonal Auto Regressive Moving ...  Read More

Research Article
Forecasting of Mean Daily Runoff Discharge of Behesht-Abad River Using Wavelet Analysis

Sajjad Abdollahi Asadabadi; yaghoub dinpazhoh; Rasoul Mirabbasi

Volume 28, Issue 3 , July and August 2014, Pages 534-545


  Forecasting of river discharge is a key aspect of efficient water resources planning and management. In this study, two models based on Wavelet Analysis and Artificial Neural networks (ANNs) were developed for forecasting discharge of Behesht-Abad River. For this purpose, mean daily discharge data of ...  Read More

Research Article
Numerical simulation of saturated-unsaturated 2D- unsteady flow toward drain using finite volume method

rasool ghobadian

Volume 28, Issue 3 , July and August 2014, Pages 546-555


  To drainage design and management it is necessary water flow toward drain, water table variation between drains and drainage discharge have been simulated. With recent development in numerical method, it is possible the none-linear differential equation governing saturated-unsaturated flow in soil ...  Read More

Research Article
Uptake Efficiency of Iron in Different Wheat Varieties

salimeh rahemi; R. Khorassani; A. Halajnia

Volume 28, Issue 3 , July and August 2014, Pages 556-564


  With due attention to the low availability of iron in calcareous soils and different ability of plant species in iron acquisition, the study and identification of iron-efficient plants is necessary to reduce the use of chemical fertilizers. In this way, a greenhouse experiment was conducted to study ...  Read More

Research Article
Evaluating the effect of organic matter on soil quality score functions

H. Emami; A.R. Astaraei; A. Fotovat

Volume 28, Issue 3 , July and August 2014, Pages 565-574


  Soil quality is important for evaluating the soil fertility and physical condition. Soil physical and chemical indicators should be regarded for determining the soil quality. This research was conducted to study the effect of organic matter on quantitative value of soil quality. Three level (15, 30, ...  Read More

Research Article
Comparison of The Spatial Variability of Magnetic Susceptibility and some of Heavy metals in Soils of Lenjanat Region, Isfahan

sh. jorkesh; Mohammad hasan Salehi; I. Esfandiarpour

Volume 28, Issue 3 , July and August 2014, Pages 575-585


  One of the most important soil contaminants are heavy metals. Chemical analysis of the samples can be used to evaluate the contamination but these methods are expensive and time consuming. Thus, for rapid evaluation, other techniques such as magnetic susceptibility are considered. The aim of this study ...  Read More

Research Article
Influence of Modified Zeolite in Combine with Soil on Permeability and Quality of Urban Wastewater

M. Hajhashemkhani; M. Ghobadi Nia; Seyed Hassan Tabatabaei; A. Hosseinpour; S. Houshmand

Volume 28, Issue 3 , July and August 2014, Pages 586-595


  Recently, wastewater is one of the water resources for irrigation due to the scarcity of water resources. In this regard, using adsorbents such as zeolites is recommended to improve the characteristics of the wastewater. Although the results show that natural zeolite decrease amount of pollutions but ...  Read More

Research Article
Evaluation the Efficiency of Six Sunflower Cultivars in Phytoextraction of Lead from a Pb-bearing Soil for Long Term

Mohammad Reza Naderi; A. Danesh-Shahraki; F. Raiesi

Volume 28, Issue 3 , July and August 2014, Pages 596-604


  The right selection of an appropriate cultivar, which can be adapted with a particular pollutant and environmental conditions, is a crucial factor for a successful phytoremediation technology. Sunflower might be a suitable plant to remove the toxic metals from soil of polluted sites due to its rapid ...  Read More

Research Article
The provenance of selected heavy metals in soils near power plant of Hamedan: A pedological approach

Sh. Nosratipoor; M. Nael; Mohsen Sheklabadi; A.A. Sepahi Garo

Volume 28, Issue 3 , July and August 2014, Pages 605-615


  To determine the origin of heavy metals, the effects of parent materials, soil genesis, and human activities on the content and distribution of selected metals in soils near Mofateh Martyr powerhouse, Hamedan, were assessed. Six types of parent materials including shale, schist, limestone, alluvial ...  Read More

Research Article
Estimation of Solar Radiation Using Land Surface Temperature MODIS Sensor Data and Neural Network Model

S. Emamifar; A. Alizadeh

Volume 28, Issue 3 , July and August 2014, Pages 616-624


  Estimation the amount of radiation reaching the Earth's surface (Rs) is an important factor in the energy balance models simulation of plant growth and evapotranspiration estimation. Most Estimation models to radiation reaching the Earth's surface use satellite data and they are based on land surface ...  Read More

Research Article
Validation of Grid APHRODIT Daily Precipitation Estimates and Estimates derived from spatial interpolation of Precipitation in the Khuzestan province

M. Jamei; M. Mousavi Baygi; M. Bannayan Awal

Volume 28, Issue 3 , July and August 2014, Pages 625-637


  Available accurate and reliable precipitation data are so important in water resources management and planning. In this study,to determine the best method of regional precipitation estimate in Khuzestan province, estimated daily precipitation data from the best interpolation method and APHRODIT Daily ...  Read More

Research Article
Investigation of Suitable Regions Determination for Drought Monitoring Using TRMM Satellite Data (Case Study: Khorasan Razavi Province)

H. Ghafourian; Seied Hosein Sanaei-Nejad; K. Davary

Volume 28, Issue 3 , July and August 2014, Pages 638-647


  Most of drought evaluation systems are based on precipitation data. However short period of measured data and inappropriate distribution of weather stations and undesirable quality of precipitation measurement networks reduce ability of showing the spatial pattern of drought. Therefore, it is necessary ...  Read More