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
Uncertainty Analysis and Overtopping Risk Evaluation of Maroon Dam withMonte Carlo and Latin Hypercube Methods

J. M. Vali Samani; H. Radmehr; M. Delavar

Volume 29, Issue 3 , July and August 2015, Pages 517-527


  Introduction: The greatest part of constructed dams belongs to embankment dams and there are many examples of their failures throughout history. About one-third of the world’s dam failures have been caused by flood overtopping, which indicates that flood overtopping is an important factor affecting ...  Read More

Research Article
Investigation of the Velocity Distribution in Sediment-Laden Flow

S. Khodadoust Siuki; M. Nemati; R. Estakhr

Volume 29, Issue 3 , July and August 2015, Pages 528-538


  Introduction: For a velocity profile in turbulent flows, the flow conditions in the vicinity of the wall are described by logarithmic law of the wall. However, it has been extensively verified that the log-law does not apply in the outer region of the boundary layer. For example, in free surface flows, ...  Read More

Research Article
Evaluating the Impact of Drought Stresses on Groundwater System in Bagh- Malek Plain by Discharge Pattern Changes

R. Lalehzari; Saeid Boroomand Nasab; Hadi Moazed; A. Haghighi

Volume 29, Issue 3 , July and August 2015, Pages 539-550


  Introduction: Groundwater is the largest resource of water supplement and shortages of surface water supplies in drought conditions that requires an increase in groundwater discharge. Groundwater flow dependson the subsurface properties such as hydraulic gradient (water table gradient or head loss in ...  Read More

Research Article
Effects of Deficit Irrigation on Quantity and Quality of Soybean Crop Yield in Kermanshah Region

M. Esmaeili; Bahman Farhadi Bansouleh; M. Ghobadi

Volume 29, Issue 3 , July and August 2015, Pages 551-559


  Introduction: Expansion of the area of oilseed crops such as soybean is one of the policies of Iranian agricultural policy makers as Iran is one of the major oilseed importers in the world. However, the area of this crop in Kermanshah province is negligible, but it could be cultivated in most parts ...  Read More

Research Article
Effect of Water Quality and Drip Irrigation Management on Yield and Water Use Efficiency in Late Summer Melon

javad baghani; A. Alizadeh; H. Ansari; M. Azizi

Volume 29, Issue 3 , July and August 2015, Pages 560-568


  Introduction: Production and growth of plants in many parts of the world due to degradation and water scarcity have been limited and particularly, in recent decades, agriculture is faced with stress. In the most parts of Iran, especially in the Khorasan Razavi province, drought is a fact and water is ...  Read More

Research Article
Effect of Irrigation with Reclaimed Water on Fruit Characteristics and Photosynthesis of Olive Trees under Two Irrigation Systems

N. Ashrafi; M. Gheysari; A. Maleki; A. Nikbakht

Volume 29, Issue 3 , July and August 2015, Pages 569-577


  Introduction: Olive (Olea europaea L.) trees are mainly cultivated in the Mediterranean area and are grown for their oil or processed as table olives. Despite the fact that olive is known to be resistant to drought conditions due to its anatomical, physiological, and biochemical adaptations to drought ...  Read More

Research Article
Estimation of Weighted Skew Coefficient for Design Flood Approximation (Case Study: West Azerbayjan, Islamic Republic of Iran)

J. Behmanesh; M. Hesami Afshar

Volume 29, Issue 3 , July and August 2015, Pages 578-589


  Introduction: The frequency of floods is one of the characteristics of river flow statistics so thatanalyzing it has an important role to assess the hydrological and economical water resources projects. For determining flood frequency, the estimation of accurate skewness coefficient of annual peak discharges ...  Read More

Research Article
Simulation of Salinity Distribution in Soil Under Drip Irrigation Tape with Saline Water Using SWAP Model

M. Tabei; Saeid Boroomand Nasab; A. Soltani Mohamadi; A. H. Nasrollahi

Volume 29, Issue 3 , July and August 2015, Pages 590-603


  Introduction: The to be limited available water amount from one side and to be increased needs of world population from the other side have caused increase of cultivation for products. For this reason, employing new irrigation ways and using new water resources like using the uncommon water (salty water, ...  Read More

Research Article
Estimating Soil Water Retention Curve Using The Particle Size Distribution Based on Fractal Approach

M.M. Chari; B. Ghahraman; K. Davary; A. A. Khoshnood Yazdi

Volume 29, Issue 3 , July and August 2015, Pages 604-614


  Introduction: Water and soil retention curve is one of the most important properties of porous media to obtain in a laboratory retention curve and time associated with errors. For this reason, researchers have proposed techniques that help them to more easily acquired characteristic curve. One of these ...  Read More

Research Article
Calibration and Validation Parameter of Hydrologic Model HEC-HMS using Particle Swarm Optimization Algorithms – Single Objective

R. Garmeh; Alireza Farid-hosseini; majid hashemi nia; A. Hojjati

Volume 29, Issue 3 , July and August 2015, Pages 615-626


  Introduction: Planning and management of water resource and river basins needs use of conceptual hydrologic models which play a significant role in predicting basins response to different climatic and meteorological processes. Evaluating watershed response through mathematical hydrologic models requires ...  Read More

Research Article
Source Identification of Heavy Metals in Soils Surrounding the Zanjan Zinc Town by Multivariate Statistical Techniques

M.A. Delavar; Y. Safari

Volume 29, Issue 3 , July and August 2015, Pages 627-637


  Introduction: The accumulation of heavy metals (HMs) in the soil is of increasing concern due to food safety issues, potential health risks, and the detrimental effects on soil ecosystems. HMs may be considered as the most important soil pollutants, because they are not biodegradable and their physical ...  Read More

Research Article
Variability of Measured Runoff and Soil Loss from Field Plots

F. Asadzadeh; manoochehr gorji; A. Vaezi; S. Mirzaee

Volume 29, Issue 3 , July and August 2015, Pages 638-647


  Introduction: Field plots are widely used in studies related to the measurements of soil loss and modeling of erosion processes. Research efforts are needed to investigate factors affecting the data quality of plots. Spatial scale or size of plots is one of these factors which directly affects measuring ...  Read More

Research Article
Influence of Different Slope Aspects on Some Soil Properties and Forest Soils Evolution (Case Study: Rostam Abad Region, Guilan Province)

M. Zarinibahador; - K. Nabiollahi; M. Norouzi

Volume 29, Issue 3 , July and August 2015, Pages 648-662


  Introduction: Spatial variation of soil properties is significantly influenced by numerous environmental factors such as landscape features, including position, topography, slope gradient and aspect, parent material, climate and vegetation. Soil properties vary spatially in south- and north-facing hill ...  Read More

Research Article
The Effect of Zeolite on Aggregate Stability Indices

F. Sohrab; N. Abbasi; A. Mahdipour

Volume 29, Issue 3 , July and August 2015, Pages 663-672


  Introduction: Soil structural stability affects the profitability and sustainability of agricultural systems. Particle size distribution (PSD) and aggregate stability are the important characteristics of soil. Aggregate stability has a significant impact on the development of the root system, water and ...  Read More

Research Article
Determining the Most Important Soil Properties Affecting the Yield of Saffron in the Ghayenat Area

amir ranjbar; H. Emami; Ali reza Karimi; R. Khorassani

Volume 29, Issue 3 , July and August 2015, Pages 673-682


  Introduction: Saffron is one of the most important economic plants in the Khorasan province. Awareness of soil quality in agricultural lands is essential for the best management of lands and for obtaining maximum economic benefit. In general, plant growth is a function of environmental factors especially ...  Read More

Research Article
Assessment of Tree and Multiple Linear Regressions in Estimation of Cation Exchange Capacity

Y. Ostovari; K. Asgari; H. R. Motaghian

Volume 29, Issue 3 , July and August 2015, Pages 683-694


  Introduction: Estimation of cation exchange capacity (CEC) with reliable soil properties can save time and cost. Pedotransfer function (PTF) is a common method in estimating certain soil properties (e.g. CEC) that has been wieldy used for many years. One of the common techniques that have been used ...  Read More

Research Article
Deposition Rate, Mineralogy and Size Distribution Pattern of Dust Particles Collected Around the Houralazim Marshland, Khuzestan Province

R. Beitlefteh; A. Landi; S. Hojati; Gh. Sayyad

Volume 29, Issue 3 , July and August 2015, Pages 695-707


  Introduction: Recently, air pollution due to the occurrence of dust storms is one of the worst environmental problems in Western and Southwestern Iran, especially the Khuzestan Province (12, 13). According to the reports of the Meteorological Organization of Iran the average number of dusty days in the ...  Read More

Research Article
Case Study of Survey of Occasional Application of Vinasse in Compost Production in Different Phases (during Production and after Producing Compost), at Waste Resumption Complex of Aradkooh in Tehran

A. Hemati; H. A. Alikhani; M. Rasapoor; H. Asgari Lajayer

Volume 29, Issue 3 , July and August 2015, Pages 708-717


  Introduction: Recycling organic wastes has vital roles in sustainable agriculture, reducing pollutants in the environment, and nutrient enrichment of soils. Compost is the product of recycling organic waste through anaerobic treatment, which can be a good alternative.Again the use of chemical fertilizers ...  Read More

Research Article
Co-Inoculation Effects of Thiobacillus thiooxidans Bacteria and Mycorrhiza (Glomus spp.) on Maize Nutrition at Different Levels of Sulfur

A. Gholami; A. Ansouri; H. Abbas dokht; A. Fallah Nosrat Abad

Volume 29, Issue 3 , July and August 2015, Pages 718-729


  Introduction: Sulfur is the key element for higher crops and plays an important role in the formation of proteins, vitamins, and enzymes. It is a constituent of amino acids such as cysteine and methionine, which act for the synthesis of other compounds containing reduced sulfur, such as chlorophyll and ...  Read More

Research Article
Modeling Rain-fed Wheat and Barley based on Meteorological Features and Drought Indices

A. Mosaedi; S. Mohammadi Moghaddam; M. Ghabaei Sough

Volume 29, Issue 3 , July and August 2015, Pages 730-749


  Introduction: Weather features and their variations have an important role in the yield of agricultural products, especially in rain-fed conditions. The main metrological variables that affected yields consist of precipitation, temperature, soil moisture and solar radiation. Also, drought is one of the ...  Read More

Research Article
Investigation of Meteorological Extreme Events in the North-East of Iran

S. Kouzegaran; M. Mousavi Baygi

Volume 29, Issue 3 , July and August 2015, Pages 750-764


  Introduction: Over the past hundred years, human activity has significantly altered the atmosphere and increase of concentration of greenhouse gases lead to warm the earth's surface. This global warming leads to change of climatic extreme index and increases the intensity and frequency of occurrence ...  Read More