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
Investigation on the Causes of Cracking in Earth Dams (Case study: Mahmood-Abad Earth Dam)

Hassan Rahimi; H. Ahmadi

Volume 29, Issue 6 , January and February 2015, Pages 1406-1415


  Introduction: Cracking of earth dams is a one of the main threat causes of stability of embankment dams. In this research by modeling of the behavior of an embankment dam and employing conditions of the earthquake, the reasons of cracking were inspected using by modeling of earth dam behavior. Based ...  Read More

Research Article
Enhancing Accuracy of Sediment Total Load Prediction Using Evolutionary Algorithms (Case Study: Gotoorchay River)

K. Roshangar; M.T. Aalami; F. Vojoudi Mehrabani

Volume 29, Issue 6 , January and February 2015, Pages 1416-1426


  Introduction: Exact prediction of transported sediment rate by rivers in water resources projects is of utmost importance. Basically erosion and sediment transport process is one of the most complexes hydrodynamic. Although different studies have been developed on the application of intelligent models ...  Read More

Research Article
Developing Semi-Analytical solutions for Saint-Venant Equations in the Uniform Flow Region

M.M. Heidari; S. Kouchakzadeh

Volume 29, Issue 6 , January and February 2015, Pages 1427-1437


  Introduction: Unsteady flow in irrigation systems is the result of operations in response to changes in water demand that affect the hydraulic performance networks. The increased hydraulic performance needed to recognize unsteady flow and quantify the factors affecting it. Unsteady flow in open channels ...  Read More

Research Article
Experimental Study of Rectangular Labyrinth Weir

M. Rezaee; A. Emadi; Q. Aqajani Mazandarani

Volume 29, Issue 6 , January and February 2015, Pages 1438-1446


  Introduction: Labyrinth weirs compare with straight weirs had required less freeboard in upstream so they are more appropriate for the irrigation networks. So they could maked more space to sotrage water and restrained foold with higher discharge. Labyrinths weirs have three generally form triangles, ...  Read More

Research Article
Experimental Study of Flow over and Under Half-Cylindrical Gate with Rotation 180 Degree around Central Axis

F. Alizadeh Sanami; M. Masoudian; M. Saneie

Volume 29, Issue 6 , January and February 2015, Pages 1447-1457


  Introduction: Because of the fairly simple equations for accurate flow measurement and controlling the water level, weir and gate method is more useful than the separate weir, gate and partial flume methods. Since the flowing water in the channel always contains sediment particles and floating debris, ...  Read More

Research Article
Estimation of Water Footprint Compartments in National Wheat Production

B. Ababaei; H. Ramezani Etedali

Volume 29, Issue 6 , January and February 2015, Pages 1458-1468


  Introduction: Water use and pollution have raised to a critical level in many compartments of the world. If humankind is to meet the challenges over the coming fifty years, the agricultural share of water use has to be substantially reduced. In this study, a modern yet simple approach has been proposed ...  Read More

Research Article
Growth and Chemical Composition of Pistachio Seedlings under Different Levels of Manganese in Greenhouse Conditions

T. Poorbafrani; A. Tajabadi Pour; V. Mozafari; A.R. Akhgar

Volume 29, Issue 6 , January and February 2015, Pages 1469-1480


  Introduction: Pistachio is one of the most important crops in many regions of Iran with respect of production and export. There are more than 470000 ha of nonbearing and bearing pistachio trees mainly in Kerman province. Despite the economic importance of this crop, very little information is available ...  Read More

Research Article
Effect of Microbial Inoculation on Phosphorus Efficiency (PE) of Different Genotypes of Barley

R. Mosavi; E. Sepehr; A. Samadi; Mirhasan Rasouli-Sadaghiani; B. Sadeghzade

Volume 29, Issue 6 , January and February 2015, Pages 1481-1492


  Introduction: Phosphorus (P) is regarded as the most important soil nutrient after nitrogen (N) for plant growth and development as it plays key roles in plant metabolism, structure and energy transformation. Also, although soil P is often abundant in both organic and inorganic forms, it is frequently ...  Read More

Research Article
Effect of EDTA and Citric Acid on Phytoextraction of Copper and Zinc from a Naturally Contaminated Soil by Maize (Zea mays L.) Cultivars

A. Taheripur; Sh. kiani; A. Hosseinpur

Volume 29, Issue 6 , January and February 2015, Pages 1493-1505


  Introduction: Mining and smelting activities have contributed to increasing levels of copper (Cu) and zinc (Zn) in soils around of Sarcheshmeh copper mine (Kerman, Iran). Soil chemical analysis showed that the available of Cu and Zn (extracted with DTPA-TEA) were 260.1 and 9.2 mg kg-1 soil, respectively. ...  Read More

Research Article
Comparison of Desertification Intensity in the Purified Wastewater Irrigated Lands with Normal Lands in Yazd Using of Soil Criterion of the IMDPA Model

M. Yektafar; M. Zare; M. Akhavan Ghalibaf; S. R. Mahdavi Ardakani

Volume 29, Issue 6 , January and February 2015, Pages 1506-1521


  Introduction: Desertification, is a complex phenomenon, which as environmental, socio-economical, and cultural impacts on natural resources. According to the United Nations Convention to Combat Desertification defination, desertification is land degradation in arid, semi-arid, and dry sub-humid regions, ...  Read More

Research Article
Evaluation of Chemical and Mineralogical Transformation of Iron in Different Soils in Saturated and Field Capacity Conditions

M. Saadatpour Mogaddam; A. Abbaspour; Sh. Shavsavani

Volume 29, Issue 6 , January and February 2015, Pages 1522-1532


  Introduction: Redox potential is one of the most important factors affecting on the solubility of iron minerals in soil. Decreasing redox potential in soil reduces Fe3+ to Fe2+, thereby affecting on solubility of Fe minerals. Application of organic matter to soil under waterlogging condition, decrease ...  Read More

Research Article
Investigating the Effect of Biological Crusts on Some Biological Properties of Soil (Case Study: Qare Qir Rangelands of Golestan Province)

J. Kakeh; manoochehr gorji; A. A. Pourbabaei; A. Tavili; M. Sohrabi

Volume 29, Issue 6 , January and February 2015, Pages 1533-1541


  Introduction: Physical and biological soil crusts are the principal types of soil crusts. Physical and biological soil crusts are distributed in arid, semi-arid and sub-humid regions which constitute over 40% of the earth terrestrial surface. Biological soil crusts (BSCs) result from an intimate association ...  Read More

Research Article
Application of Statistical Method of Path Analysis to Describe Soil Biological Indices

Y. Kooch

Volume 29, Issue 6 , January and February 2015, Pages 1542-1552


  Introduction: Among the collection of natural resources in the world, soil is considered as one of the most important components of the environment. Protect and improve the properties of this precious resource, requires a comprehensive and coordinated action that only through a deep understanding of ...  Read More

Research Article
Effects of Soil Compaction on Carbon and Nitrogen Sequestration in Soil and Wheat, Soil Physical Properties and Aggregates Stability (Case study: Northern of Aq Qala)

Z. Saieedifar; H.; F. Akram ghaderi

Volume 29, Issue 6 , January and February 2015, Pages 1553-1566


  Introduction: Soil compaction has become a widespread problem in the world and it is considered as one of the main factors affecting land degradation in arid and semi-arid agricultural land. Compaction in arable soils is a gradual phenomenon that appearing over time and most important factors that influence ...  Read More

Research Article
Relationships between some soil physical and chemical properties with magnetic properties in different soil moisture regimes in Golestan province

M. Valaee; Sh. Ayoubi; H. Khademi; F. Khormali

Volume 29, Issue 6 , January and February 2015, Pages 1567-1577


  Introduction: Soil moisture regime refers to the presence or absence either of ground water or of water held at a tension of less than 1500 kPa in the soil or in specific horizons during periods of the year. It is the most important factor in soil formation, soil evolution and fertility affecting on ...  Read More

Research Article
Clay Mineralogy Relationships with Potassium Forms in Different Physiographic Units

P. Alamdari; V. Kamrani; M. H. Mohammadi

Volume 29, Issue 6 , January and February 2015, Pages 1578-1589


  Introduction: Potassium is an essential element for plant growth and its importance in agriculture is well known. Total soil potassium reserves are generally large; although the distribution of K forms differs from soil to soil as a function of the dominant soil clay minerals present. The objectives ...  Read More

Research Article
Runoff and Sediment Production under the Similar Rainfall Events in Different Aggregate Sizes of an Agricultural Soil

S. F. Eslami; A. R. Vaezi

Volume 29, Issue 6 , January and February 2015, Pages 1590-1600


  Introduction: Soil erosion by water is the most serious form of land degradation throughout the world, particularly in arid and semi-arid regions. In these areas, soils are weakly structured and are easily disrupted by raindrop impacts. Soil erosion is strongly affected by different factors such as rainfall ...  Read More

Research Article
Effects of Polyacrylamide in Controlling of Splash Erosion from a Soil induced Freeze-Thaw Cycle

S.H.R. Sadeghi; M.B. Raisi; Z. Hazbavi

Volume 29, Issue 6 , January and February 2015, Pages 1601-1611


  Introduction: The capability of a soil to resist erosion depends on soil-particle size and distribution, soil structure and structural stability, soil permeability, water content, organic matter content, and mineral and chemical constituents. Among many affecting factors on aforesaid characteristics, ...  Read More

Research Article
Studyof Wastewater and Compost Effects on Some of Soil Physical and Chemical Characteristics

M. Shakarami; S. Marofi; Gh. Rahimi

Volume 29, Issue 6 , January and February 2015, Pages 1612-1628


  Introduction: Arid and semi-arid areas are confronting increasing water shortages. In these regions of the world, planners are being forced to consider other water sources that could be used economically and effectively to promote further development. Wastewater is the only potential water source, which ...  Read More

Research Article
Study the Soil Quality Changes Indicators Using Nemoro and Integrated Quality Index Models in Some Khuzestan’s Soils

F. Ramezani; S. Jafari; A. Salavati; B. Khalilimoghaddam

Volume 29, Issue 6 , January and February 2015, Pages 1629-1639


  Introduction: Aspects of the physical, chemical and biological are considered. Land degradation for soil quality, or improve soil quality assessment is important.This study was conducted to evaluate soil quality indicators using quantitative models in some lands of Khuzestan province (Iran).Such studies, ...  Read More

Research Article
The Effects of Source and Rate of Nitrogen Fertilizer and Irrigation on Nitrogen Uptake of Silage Corn and Residual Soil Nitrate

M. A. Khodshenas; J. Ghadbeiklou; M. Dadivar

Volume 29, Issue 6 , January and February 2015, Pages 1640-1650


  Introduction: Growing irrigation demand for corn production, along side with draws of ground water from stressed water sources, should be limited due to scarce resources and environmental protection aspects. Nitrogen fertilizer applied at rates higher than the optimum requirement for crop production ...  Read More

Research Article
Production Potential Prediction and Quantitative Land Suitability Evaluation for Irrigated Cultivation of Canola (Brassica napus), North of Shahrekord District

J. Givi; A. Haghighi

Volume 29, Issue 6 , January and February 2015, Pages 1651-1661


  Introduction: Land suitability evaluation and land production potential estimation are considered as prerequisites for land use planning. In quantitative land suitability evaluation, land suitability is evaluated based on production per surface area unit. In this kind of evaluation, first, radiation ...  Read More

Research Article
Distribution of Phosphate Solubilizing Bacteria and Soil Phosphatase Activity in Different Land Uses

Mohammad Reza Sarikhani; N. Chalabianlu; S. S. Alavikia

Volume 29, Issue 6 , January and February 2015, Pages 1662-1673


  Introduction: Phosphorous is one of the essential macronutrients for plant growth and development but its mobility in soil is very low. The utilization of the soil biological potential, in particular phosphate solubilizing bacteria, is an efficient way which can be used for exploiting available sources ...  Read More

Research Article
Determination of the Most Important Soil Parameters Affecting the Availability of Phosphorus in Sistan Plain, Using Connection Weight Method in Neural Networks

H. Mir; Ahmad Gholamalizadeh Ahangar; A. Shabani

Volume 29, Issue 6 , January and February 2015, Pages 1674-1687


  Introduction: Phosphorus is important as an essential element in the production of agricultural products. On the other hand, its ability to induce essential micronutrient deficiency and its negative effects on the environment, have attracted more attention to this element. The knowledge of phosphorus ...  Read More

Research Article
Evaluation of the Effect of Sulfur Application and Thiobacillus on Some Soil Chemical Characteristics and Yield of Canola in Wheat-Canola Rotation System

H. Besharati; R. Motalebifard

Volume 29, Issue 6 , January and February 2015, Pages 1688-1698


  Introduction: After soybean and palm oil, canola is third important oil seed in the world which belongs to the genus Brassicaceae, that its seeds contain about 40% oil. The per capita consumption of oil in Iran is about 14 kg, so approximately 900 thousand tons of oil will be required for each year. ...  Read More

Research Article
Relationship between Topography and Some Soil Properties

M. J. Pajand; H. Emami; Alireza Astaraei

Volume 29, Issue 6 , January and February 2015, Pages 1699-1710


  Introduction: Topography is an important and effective property affecting the soil quality. Some researchers demonstrated that degree and aspect of land slope may influence the particle size distribution and gravel. Slope degree affects the surface and subsurface run-off, drainage, soil temperature, ...  Read More

Research Article
Investigation of Zn Use Efficiency and Zn Fertilization Efficiency in Some Genotypes of Wheat

P. Keshavarz; M. Forouhar; M. Dadivar

Volume 29, Issue 6 , January and February 2015, Pages 1711-1720


  Introduction: World cereal demand is growing at the present in accordance with the global expansion of human populations.Bread wheat is the most widely grown cereal grain with 65% (6.5 million hectares) of the total crop cultivated area in Iran. Deficiency of micronutrients in cereal cropping is one ...  Read More

Research Article
Development of a Disaggregation Framework toward the Estimation of Subdaily Reference Evapotranspiration: 2- Estimation of Subdaily Reference Evapotranspiration Using Disaggregated Weather Data

F. Parchami Araghi; seyed majid mirlatifi; Sh. Ghorbani Dashtaki; M. Vazifehdoust; A. Sadeghi Lari

Volume 29, Issue 6 , January and February 2015, Pages 1721-1734


  Introduction: Subdaily estimates of reference evapotranspiration (ET o) are needed in many applications such as dynamic agro-hydrological modeling. However, in many regions, the lack of subdaily weather data availability has hampered the efforts to quantify the subdaily ET o. In the first presented paper, ...  Read More

Research Article
Soil Moisture Estimation Using MODIS Images (Case Study: Mashhad Plain Area)

M. Fashaee; Seied Hosein Sanaei-Nejad; K. Davary

Volume 29, Issue 6 , January and February 2015, Pages 1735-1748


  Introduction: Numerous studies have been undertaken based on satellite imagery in order to estimate soil moisture using vegetation indices such as NDVI. Previous studies suffer from a restriction; these indices are not able to estimate where the vegetative coverage is low or where no vegetation exists. ...  Read More

Research Article
Applicability of AgMERRA forcing dataset forgap-filling of in-situ meteorological observation, Case Study: Mashhad Plain

A. Lashkari; Mohammad Bannayan Aval; A. Koocheki; A. Alizadeh; Y. S. Choi; S.-K. Park

Volume 29, Issue 6 , January and February 2015, Pages 1749-1758


  Introduction: Consistency and transparency in climate data and methods facilitate comparisons across regions or between models in each of these assessments, particularly when market linkages between regions are emphasized (14 and 15). However, the density and quality of stationary climate data varies ...  Read More