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
Modeling and Forecasting of Water Demand in Isfahan Using Underlying Trend Concept and Time Series

H. Sadeghi; ali mohammad akhondali; meisam haddad; M. Golabi

Volume 29, Issue 2 , May and June 2015, Pages 251-262


  Introduction: Accurate water demand modeling for the city is very important for forecasting and policies adoption related to water resources management. Thus, for future requirements of water estimation, forecasting and modeling, it is important to utilize models with little errors. Water has a special ...  Read More

Research Article
The Influence of Fertigation on Clogging of Some Emitters in Drip Irrigation

shahrzad gharcheh; M. Delbari; F. Ganji

Volume 29, Issue 2 , May and June 2015, Pages 263-273


  Introduction: An appropriate water resources management and planning is necessary due to the scarcity of water resources and rapidly growing world population. In this regard, selecting appropriate methods for irrigation is one of the most important issues. Drip irrigation is a recent advanced irrigation ...  Read More

Research Article
Assessing Intelligent Models in Forecasting Monthly Rainfall by Means of Teleconnection Patterns (Case Study: Khorasan Razavi Province)

Farzaneh Nazarieh; H. Ansari

Volume 29, Issue 2 , May and June 2015, Pages 274-283


  Introduction: Rainfall is affected by changes in the global sea level change, especially changes in sea surface temperature SST Sea Surface Temperature and sea level pressure SLP Sea level Pressure. Climate anomalies being related to each other at large distance is called teleconnection. As physical ...  Read More

Research Article
Economical Evaluation of Single Irrigation Efficient of Rainfed Barley under Different Agronimic Managements at On-farm Areas

Ali Reza Tavakoli; H. Asadi

Volume 29, Issue 2 , May and June 2015, Pages 284-294


  Introduction: Two of the main challenges in developing countries are food production and trying to get a high income for good nutrition and reduction of poverty. Cereals and legumes are the most important crops in the rainfed areas of the country occupying the majority of dry land areas. Irrigated production ...  Read More

Research Article
Analysis of Droughts of Northwest of Iran Using the Reconnaissance Drought Index

behrouz hosseini; yaghoub dinpazhoh; J. Nikbakht

Volume 29, Issue 2 , May and June 2015, Pages 295-310


  Introduction: Drought is a creeping natural phenomenon, which can occur in any region. Such phenomenon not only affects the region subjected to drought, but its adverse effects can also be extended to other adjacent regions. This phenomenon mainly starts with water deficiency (say less than long- term ...  Read More

Research Article
Evaluation of the Effect of Different Irrigation Levels of Drip Irrigation (Tape) on Yield and Yield Components of Corn

mohammad karimi; J. Baghani; M. Joleini

Volume 29, Issue 2 , May and June 2015, Pages 311-321


  Introduction: One of the serious problems in the further development of maize cultivation is increasing irrigation efficiency. Using conventional irrigation causes a shortage of water resources to increase the acreage of the crop. With regard to the development of maize cultivation, agronomic and executable ...  Read More

Research Article
Comparison of Some Rural Wastewater Refining Systems Considering Chemical Properties and Heavy Metals

Najme Yazdanpanah

Volume 29, Issue 2 , May and June 2015, Pages 322-335


  Introduction: Water scarcity is an important challenge worldwide, especially in arid and semi-arid regions. In these areas, the excessive exploitation of groundwater for irrigation, inefficient irrigation methods, irrigation with low-quality water and uncontrolled utilization of fertilizers in agricultural ...  Read More

Research Article
Technical Evaluation of Sprinkler Irrigation Systems which were Implemented in Tea Fields of the Guilan Province

kourosh majdsalimi; b. salavatian; e. amiri

Volume 29, Issue 2 , May and June 2015, Pages 336-349


  Introduction: Designing and management of sprinkler irrigation systems depend on the situation and location of its implementation and often rely on professional and long-term tests (9). Having a good irrigation system depends on knowledge of the relationship between soil, water, plants, irrigation scheduling, ...  Read More

Research Article
Lake and Reservoir Evaporation Estimation: Sensitivity Analysis and Ranking Existing Methods

maysam majidi; a. Alizade; m. vazifedoust; a. faridhosseini

Volume 29, Issue 2 , May and June 2015, Pages 350-373


  Introduction: Water when harvested is commonly stored in dams, but approximately up to half of it may be lost due to evaporation leading to a huge waste of our resources. Estimating evaporation from lakes and reservoirs is not a simple task as there are a number of factors that can affect the evaporation ...  Read More

Research Article
Drought Monitoring Based on Standardized Precipitation Evaoptranspiration Index (SPEI) Under the Effect of Climate Change

H. Zareabyaneh; M. GHobaeisoogh; Abolfazl Mosaedi

Volume 29, Issue 2 , May and June 2015, Pages 374-392


  Introduction: Drought is a natural and recurrent feature of climate. The characterizations of it may change under the effect of climate change in future periods. During the last few decades a number of different indices have been developed to quantify drought probabilities. Droughts are caused by disruptions ...  Read More

Research Article
Estimating Peak Outflow of Earth Fill Dam Failures by Multivariable Statistical Models

mahsa noori; Saeed Reza Khodshenas; H. Rezaeepajand

Volume 29, Issue 2 , May and June 2015, Pages 393-405


  Introduction: Dam failure and its flooding is one of the destructive phenomena today. Therefore, estimating the peak outflow (QP) with reasonable accuracy and determining the related flood zone can reduce risks. Qp of dam failure depends on important factors such as: depth above breach (Hw), volume ...  Read More

Research Article
Modeling of Soil Aggregate Stability using Support Vector Machines and Multiple Linear Regression

Ali Asghar Besalatpour; Hossein Shirani; Isa Esfandiarpour Borujeni

Volume 29, Issue 2 , May and June 2015, Pages 406-417


  Introduction: Soil aggregate stability is a key factor in soil resistivity to mechanical stresses, including the impacts of rainfall and surface runoff, and thus to water erosion (Canasveras et al., 2010). Various indicators have been proposed to characterize and quantify soil aggregate stability, for ...  Read More

Research Article
Effects of Land Use Changes on Some Soil Chemical Properties in Khoy, West Azerbaijan Province

Arezoo Taghipour; S. Rezapour; B. Dovlati; Roghaie Hamzenejad

Volume 29, Issue 2 , May and June 2015, Pages 418-431


  Introduction: Intensified agriculture over a long-term is an important factor in soil change phenomena that can cause some unwanted effects on soil properties. To examine this hypothesis, chemical properties of the soils under sunflower cultivation over five decades and adjoining virgin lands were investigated ...  Read More

Research Article
Effect of Grazing Intensity on Some Soil Chemical Characteristics in Gardaneh Zanburi Rangeland of Arsanjan

zeinab khademolhosseini

Volume 29, Issue 2 , May and June 2015, Pages 432-440


  Introduction:Changes caused by grazing on range ecosystem are generally assessed based on the soil conditions and vegetation. Livestock as one of the major elements in range land ecosystems has different effects on different parts of this ecosystem. One of these impacts is excessive livestock grazing ...  Read More

Research Article
Contamination of Soil, Water, Plant and Dust by Zinc, Lead and Cadmium in Southwest Isfahan

Nastaran Esmaeilpourfard; J. Givi; A. Davodian

Volume 29, Issue 2 , May and June 2015, Pages 441-452


  Introduction Due to mining, considerable amounts of heavy metal bearing mineralsare scattered in the atmosphere in the form of dust and make the surrounding air, water and soils polluted.Runoff water movingfrom the mountainstowardsplains may also transport heavy metals from mines to the soils.One type ...  Read More

Research Article
Effect of Land Use Change on Inorganic Phosphorus Pools In Loess Derived Soils of the Toshan Region, Golestan Province

S. Tajari; mojtaba barani; F. Khormali; F. Kiani

Volume 29, Issue 2 , May and June 2015, Pages 453-465


  Introduction: P in soils exists in many complex chemical forms, which differ markedly in their behavior, mobility and resistance to bioavailability in the soils. The total P content of a soil provides little information regarding the behavior of P in the environment. The various forms of P present to ...  Read More

Research Article
The Effects of Arbuscular Mycorrhiza Fungi on Dry Matter and Concentrations of Nitrogen, Phosphorus and Potassium in Berseem Clover, by Cadmium stress

hashem aram; A. Golchin

Volume 29, Issue 2 , May and June 2015, Pages 466-476


  Introduction: Soil contaminations with heavy metals represent a potential risk to the biosphere and leads to increased concentration in ground and surface water. Therefore metals mobility in soil has been extensively studied in the last decades. Use of agrochemicals such as synthetic fertilizers and ...  Read More

Research Article
Variations of Ni, Cr and Mn Concentration in Soils Formed Along a Toposequence of Ultrabasic Rocks in Western Mashhad

S. Akbari; Ali reza Karimi; A. Lakzian; A. Fotovat

Volume 29, Issue 2 , May and June 2015, Pages 477-488


  Introduction: Parent materials as one of the main soil formation factors have a great impact on the concentration of heavy metals in the soil. Heavy metals are released to the soil during weathering and pedogenic processes. Ultrabasic rocks are known as the potential natural source of heavy metals, especially ...  Read More

Research Article
Evaluation of Tillage, Residue Management and Nitrogen Fertilizer Effects on CO2 Emission in Maize (Zea Mays L.) Cultivation

Rooholla Moradi; Alireza Koocheki; Mehdi Nassiri; Hamed Mansoori

Volume 29, Issue 2 , May and June 2015, Pages 489-503


  Introduction: The latest report of the Intergovernmental Panel on Climate Change (IPCC) states that future emissions of greenhouse gases (GHGs) will continue to increase and cause climatic change (16). These conditions are also true for Iran. The three greenhouse gases associated with agriculture are ...  Read More

Research Article
Comparative Study of Regional Estimation Methods for Daily Maximum Temperature (A Case Study of the Isfahan Province)

Ghamar Fadavi; Javad Bazarafshan

Volume 29, Issue 2 , May and June 2015, Pages 504-516


  Introduction: As the statistical time series are in short period and the meteorological station are not distributed well in mountainous area determining of climatic criteria are complex. Therefore, in recent years interpolation methods for establishment of continuous climatic data have been considered. ...  Read More