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 28 (2014)
Volume 27 (2013)
Volume 26 (2012)
Volume 25 (2011)
Volume 24 (2010)
Volume 23 (2009)
Volume 22 (2008)
Research Article
The Ability of Watercress (Nasturtiumofficinale) and Pennyroyal (Menthapulegium) in Clean up Excess Nitrate and Phosphate of Water

Z. Ahmadpoor; M. Khoramivafa; S. Jalali Honarmand; K. Cheghamirza; M. Khan Ahmadi

Volume 29, Issue 4 , September and October 2015, Pages 765-775


  Introduction: There is necessary to clean up the nitrate and phosphate from surface waters before effluence of them to environment and eutrophication formation because of water health importance and considering to nitrate and phosphate consequences. Nitrate and ammonium as the - forms of inorganic and ...  Read More

Research Article
Combined Effects of Numerical Method Type and Time Step on Water Stressed Actual Crop ET

B. Ghahraman

Volume 29, Issue 4 , September and October 2015, Pages 776-786


  Introduction: Actual crop evapotranspiration (Eta) is important in hydrologic modeling and irrigation water management issues. Actual ET depends on an estimation of a water stress index and average soil water at crop root zone, and so depends on a chosen numerical method and adapted time step. During ...  Read More

Research Article
Mapping of Soil Saturated Hydraulic Conductivity in Navroud-Assalem Watershed in Guilan Province

M.R. Khaledian; S.A. Moussavi; H. Asadi; M. Norouzi; M. Aligoli

Volume 29, Issue 4 , September and October 2015, Pages 787-796


  Introduction: With increasing awareness of human beings towards the environment, researchers pay more attention to process and redistribution of water flow and solute transport in the soil and groundwater. Moreover, determination of soil hydraulic conductivity is necessary to determine the runoff from ...  Read More

Research Article
Developing Sensitivity Indicators for Hydraulic Perturbation

M.M. Heidari; S. Kouchakzadeh

Volume 29, Issue 4 , September and October 2015, Pages 797-809


  Introduction: Determination the hydraulic performance of an irrigation network requires adequate knowledge about the sensitivities of the network structures. Hydraulic sensitivity concept of structures and channel reaches aid network operators in identifying structures with higher sensitivities which ...  Read More

Research Article
Assessment of Estimation Methods ForStage-Discharge Rating Curve in Rippled Bed Rivers

P. Maleki; M.J. Ketabdari; hossein samadi; D. Maleki

Volume 29, Issue 4 , September and October 2015, Pages 810-819


  Introduction: Interactionbetweenwater flow characteristics andthe bed erodibilityplays an important role in sediment transport process. In order to reach stability, rivers with deposition or bottom erosion make a different bed form in the riverbed. One way to identify thebehavior of therivers is to study ...  Read More

Research Article
Effect of Regulated Deficit Irrigation (RDI) and Partial Root zone Drying (PRD) on Quantitative and Qualitative Traits of Strawberry

A. Shahnazari; M. Rezaiyan

Volume 29, Issue 4 , September and October 2015, Pages 820-827


  Introduction: Deficit irrigation (DI) is a suitable solution to gain acceptable and economic performance by using minimum amount of water. The partial root zone drying (PRD) method introduced in Australia for the first time and its goal was controlling the vine’s excessive growth. This goal gained ...  Read More

Research Article
Development of Reinforcement Learning Algorithm for Automation of Slide Gate Check Structure in Canals

K. Shahverdi; M.J. Monem

Volume 29, Issue 4 , September and October 2015, Pages 828-837


  Introduction: Nowadays considering water shortage and weak management in agricultural water sector and for optimal uses of water, irrigation networks performance need to be improveed. Recently, intelligent management of water conveyance and delivery, and better control technologies have been considered ...  Read More

Research Article
Probabilistic Analysis of a Last frostand it's Relationship with Temperature Indexes Case Study: Khorasan Razavi’s Synoptic Stations

N. Seyyednezhad Golkhatm; H. Rezaee Pazhand

Volume 29, Issue 4 , September and October 2015, Pages 839-849


  Introduction: The analysis of extreme events such as last frost dates are detrimental phenomena which influence in various branches of engineering, such as agriculture. The analysis and probability predicting of these events can be decrease damage of agriculture, horticulture and the others. Furthermore, ...  Read More

Research Article
Improving the Coefficients of Proportional-Integral Controller Based On System Identification Process on Doosti Irrigation Network

S. M. Seyedmousavi; A. parvaresh Rizi; S. Isapour

Volume 29, Issue 4 , September and October 2015, Pages 850-860


  Introduction: The use of automatic control system for managing the conveyance and distribution of water in surface irrigation systems, as a means of improving the management and performance of these systems is essential. Automating networks using the programmable controller provide the implementation ...  Read More

Research Article
Investigation of Effective Parameters on Discharge Coefficient of Compound Arched Circular-Rectangular Sharp-Crested Weirs

S.N. Mousavi; Davoud Farsadi; H. Arvanaghi; A. Abbaspour

Volume 29, Issue 4 , September and October 2015, Pages 861-873


  Introduction: The compound sharp-crested weirs are composed from several notches and those are designedin different shapes. One of the hydraulic advantagesof compound weirs is that atlowflow rate, the bottomnotchacts assimpleweir andwith the creation of morehydraulicheadonits upstream, due to theshape ...  Read More

Research Article
Laboratory Study of Hydraulic Performance of Ogee Spillway and Downstream Canal with Axial Arc

T. Eshrati; R. Fazloula; M. Sanei; A. Emadi

Volume 29, Issue 4 , September and October 2015, Pages 874-885


  Introduction: Weirs are one of the common structures for discharge and flow measurement. Therefore,these types of hydraulic structures depending on the purposeofuse havedifferent shapes. In some cases, due to practical constraints, spillways with curvature in plan are designed. In such situations study ...  Read More

Research Article
Simulation of Delfan- Lorestan Aquifer and Investigation of Management Scenarios by Using MODFLOW Model

A. Pourhaghi; F. Radmanesh; A. Maleki

Volume 29, Issue 4 , September and October 2015, Pages 886-897


  Introduction : Sustainable development of groundwater resourcesrequires a proper assessment of available resources, understanding of system behavior and interaction between groundwater and surface water.In recent years, a Delfan plain (in Iran) is facing a sharp decline in groundwater levels due to increasing ...  Read More

Research Article
Effects of Fire on Soil Splash Erosion in Semi-steppe Rangelandof Karsanak Region,Chaharmahal and Bakhtiari

D. Baharlooi; S. Ghorbani Dashtaki; B. Khalil Moghadam; Mahdi Naderi; P. Tahmasebi

Volume 29, Issue 4 , September and October 2015, Pages 898-907


  Introduction: The detachment process can be conceptually divided in two sub-processes included aggregate breakdown (Le Bissonnais, 1996) and movement initiation of breakdown products(Kinnell, 2005). soil detachment depends on raindrop size and mass(Elison, 1944; Bisal, 1960), drop velocity(Elison, 1944; ...  Read More

Research Article
Introducing a Relationship to Estimate Hydraulic Gradient in Non-Darcy Turbulent Flow in Porous Media

M. Moradi Tayyebi; E. Amiri Tokaldany

Volume 29, Issue 4 , September and October 2015, Pages 908-918


  Introduction: Study of flow characteristics in rock porous media is one the most interesting issues for scientists and engineering dealing with river engineering works. So, there is no surprise that many models to describe the relationship between the flow velocity of clear water with hydraulic gradient, ...  Read More

Research Article
River Flow Prediction Using the Nearest Neighbor Probabilistic Ensemble Method

H. Sanikhani; yaghoub dinpazhoh; M. A. Ghorbani; M. Zarghami

Volume 29, Issue 4 , September and October 2015, Pages 919-932


  Introduction: In the recent years, researchers interested on probabilistic forecasting of hydrologic variables such river flow.A probabilistic approach aims at quantifying the prediction reliability through a probability distribution function or a prediction interval for the unknown future value. The ...  Read More

Research Article
Improving Sugarcane Water and Fertilizer Use Efficiency in Furrow Fertigation

F. Abbasi; A.; N. Salamati

Volume 29, Issue 4 , September and October 2015, Pages 933-942


  Introduction: Application of simultaneous nitrogen fertilizer and water as fertigation in surface irrigation systems is developing. In fertigation is possible to increase water and fertilizer use efficiency and it allows growers to apply nutrients in split and small amounts throughout the season in response ...  Read More

Research Article
Comparison of TS and ANN Models with the Results of Emission Scenarios in Rainfall Prediction

S. Babaei Hessar; R. Ghazavi

Volume 29, Issue 4 , September and October 2015, Pages 943-953


  Introduction: Precipitation is one of the most important and sensitive parameters of the tropical climate that influence the catchments hydrological regime. The prediction of rainfall is vital for strategic planning and water resources management. Despite its importance, statistical rainfall forecasting, ...  Read More

Research Article
Effect of Different Level of Water Stress and Nitrogen Fertilizer on Yield and Yield Components of Barley in Badjgah (Fars province)

ali asghar ghaemi; B. Zamani

Volume 29, Issue 4 , September and October 2015, Pages 954-965


  Introduction: Barley is very important to feed humans, livestock, medical, industrial uses, especially in fermentation industries. In Iran, barley crop cultivation was nearly 1.4 million hectares withits production of 1.3 million tons in 2003 (2). Barelyis the oldest crops to environmental stresses such ...  Read More

Research Article
The Effects of Different Tillage Methods on Available Soil Potassium Measured by Various Extractors in a Soil with High Specific Surface Area

M. Hosseini; S.A.R. Movahedi Naeini; A. Bameri

Volume 29, Issue 4 , September and October 2015, Pages 966-979


  Introduction: The effects of any tillage method on soil properties, depends on location (soil, water and air) and the number of (years) their implementation. Soil compaction reduces yield through increased soil mechanical resistance against root growth and lower water and nutrient use efficiency (Gamda ...  Read More

Research Article
Prediction of Soil Solum Depth Using Topographic Attributes in Some Hilly Land of Koohrang in Central Zagros

A. Mehnatkesh; S. Ayoubi; A. Jalalian

Volume 29, Issue 4 , September and October 2015, Pages 980-990


  Introduction: Soil depth is defined as the depth from the surface to more-or-less consolidated material and can be considered as the most crucial soil indicator, affecting desertification and degradation in disturbed ecosystems. Soil depth varies as a function of many different factors, including slope, ...  Read More

Research Article
Effect of Combined Application of Phosphate Solubilizing Bacteria and Phosphrous Fertilizer on Growth and Yield of Sesame

S. Nikmehr; A. Akhgar

Volume 29, Issue 4 , September and October 2015, Pages 991-1003


  Introduction: Phosphorus (P) is considered to be one of the most essential macro elements required for growth and development of plants, but, due to low solubility and fixation in soils, only a small fraction of phosphorus in soil (1 ppm or 0.1%) is readily available to plants. chemical fertilizers are ...  Read More

Research Article
Spatial Distribution Analysis of Soil Properties in Varzaneh Region of Isfahan Using Image Processing Techniques

F. Mahmoodi; R. Jafari; H. Karimzadeh; N. Ramezani

Volume 29, Issue 4 , September and October 2015, Pages 1004-1017


  Introduction: Use of remote sensing for soil assessment and monitoring started with the launch of the first Landsat satellite. Since then many other polar orbiting Earth-observation satellites such as the Landsat series, have been launched and their imagery have been used for a wide range of soil mapping. ...  Read More

Research Article
Effect of Stabilized Zero-Valent Iron Nanoparticles on Nitrate Removal from Sandy Soil

F. Nooralivand; A. Farrokhian Firouzi; A. Kiasat; M. Chorom; A. Akbar Babaei

Volume 29, Issue 4 , September and October 2015, Pages 1018-1032


  Introduction: During the recent decades, the use of N fertilizers has undeniable development regardless of their effects on the soil and environment. Increasing nitrate ion concentration in soil solution and then, leaching it into groundwater causes increase nitrate concentration in the water and raise ...  Read More

Research Article
The Influence of Bean Rhizosphere on Some Chemical and Biological Properties in Soils Amended with Municipal Sewage Sludge

T. Raiesi; A. Hosseinpur; F. Raiesi

Volume 29, Issue 4 , September and October 2015, Pages 1033-1045


  Introduction: The biological and chemical conditions of the rhizosphere are known to considerably differ from those of the bulk soil, as a consequence of a range of processes that are induced either directly by the activity of plant roots or by the activity of rhizosphere microflora (16). Municipal sewage ...  Read More