Volume 38 (2024)
Volume 37 (2023)
Volume 36 (2022)
Volume 35 (2021)
Volume 34 (2020)
Volume 33 (2019)
Volume 31 (2017)
Volume 30 (2016)
Volume 29 (2015)
Volume 28 (2014)
Volume 27 (2013)
Volume 26 (2012)
Volume 25 (2011)
Volume 24 (2010)
Volume 23 (2009)
Volume 22 (2008)
Research Article
Assessment of SWAT Hydrological Model in Catchments' Water Balance Simulation Located in Semi-Arid Regions (Case Study: Zayandeh-Rud River Basin)

MohammadAmin Amini; Ghazaleh Torkan; Saeid Eslamian; Mohammad Javad Zareian; Ali Asghar Besalatpour

Volume 32, Issue 5 , November and December 2018, Pages 849-863


  Introduction: Understanding the concept of water balance is one of the most important prerequisites for sustainable management of water resources in the watersheds. Therefore, the components of water resources in a catchment system should be compared at different time periods, and also the effect of ...  Read More

Research Article
Effect of Water Salinity and Soil Nitrogen Deficiency on Ks-Coefficient and Readily Available Water of Maize

reza saeidi; abbas Sotoodehnia; Hadi Ramezani Etedali; Bizhan Nazari; Abbas Kaviani

Volume 32, Issue 5 , November and December 2018, Pages 865-878


  Introduction: Estimating the actual evapotranspiration of the crops, is so important for determining the irrigation needs. Typically, the climatic, vegetative and management parameters are effective on actual evapotranspiration. If the crops are exposed to salinity, fertility and other stresses, reduce ...  Read More

Research Article
Effect Leaching Management on the Salinity Changes in the Drip Irrigation System (A Case Study: Semnan)

hossein dehghani; Hamidreza Haji Agha Bozorgi; ali asghar ghaemi

Volume 32, Issue 5 , November and December 2018, Pages 879-890


  Introduction: The main problem of salinity, in addition to reducing agricultural and horticulture products is the gradual decline of their cultivation area. Several factors such as climate and irrigation (precipitation, fraction of leaching), soil type and soil salinity, salinity of irrigation water, ...  Read More

Research Article
Design and Optimization of Heavy Metal Chromium (VI) from Aqueous Solutions by Tamarind Fruit Shell Activated with Sulfuric Acid

Morteza Shahmoradi; Amir Taebi; Hasti Hasheminejad

Volume 32, Issue 5 , November and December 2018, Pages 891-904


  Introduction: The industries of leather, plating, metal processing, wood production, painting, textile, steel making and bottling are the main industries for pollution of heavy metal chromium. Chromium in the two main oxidation states consists of chromium (VI) and chromium (III). Chromium (VI) is more ...  Read More

Research Article
Investigation of the Soil-Landform Relationship in South of Herat, Western Afghanistan

Farsila Mahmoudian; Ali reza Karimi; Amir Lakzian

Volume 32, Issue 5 , November and December 2018, Pages 905-918


  1- Abdelkhalik Ibrahim M.A. 2011. Argillic horizons and clay-sized particles - an alternative interpretation of their dynamics in sola development and across catenas. Ph.D. Thesis, Iowa State University, 127p. 2- Bayat O., Karimzadeh H.R., Karimi A., Eghbal M.K., and Khademi H. 2013. Pedogeomorphic ...  Read More

Research Article
Mathematical Modeling and Comparison of the Substrate Induced on Forest and Agricultural Soils

mohsen barin; Ehsan Ehsan-Malahat; Farrokh Asadzadeh

Volume 32, Issue 5 , November and December 2018, Pages 919-930


  Introduction: Soil is a complex and dynamic biological system, and it still is difficult to determine the composition of microbial communities in soil. Most soil microorganisms are dormant, so their rate of respiration is low. However, their respiration can be stimulated by adding an easily decomposable ...  Read More

Research Article
The Effect of Seed Inoculation with Azotobacter and Azospirillum on Yield and some Qualitative and Quantitative Characteristics of Safflower at Different Planting Date

saeid hokmalipour; mehdi panahyankivi; manocher shiri janagard

Volume 32, Issue 5 , November and December 2018, Pages 931-942


  Introduction: The excessive uses of chemical fertilizers have generated several environmental problems. Some of these problems can be tackled by use of Biofertilizer, which are natural, beneficial and ecologically friendly. The Biofertilizers provide nutrients to the plants and maintain soil structure. ...  Read More

Research Article
Investigation of the Relationships between Rainfall Erosion Processes, Slope and Antecedent Water Content in Semi-Arid Soils

ali baliani; Ali Reza Vaezi

Volume 32, Issue 5 , November and December 2018, Pages 943-959


  IntroductionRainfall erosion results from the expenditure of the energy of falling raindrops and flowing water when these two agents act either singly or together. Soil erosion by rainfall is a serious ongoing worldwide environmental issue that contributes to soil and water quality degradation. Understanding ...  Read More

Research Article
Soil Water Potential and Potassium Application Effects on Yield and Biochemical Characteristics of Thomson Navel Orange (Citrus sinensis L. Osbeck.)

tahereh raiesi; bijan moradi; Behruz Golein

Volume 32, Issue 5 , November and December 2018, Pages 961-975


  Introduction: Citrus is the main fruit group grown in tropical as well as sub-tropical climate of more than 150 countries in the world. In Iran, the total area under citrus crops is 0.284 M ha with a production of 4.345 M ton and a productivity of 17 ton per ha. Citrus is also one of the most important ...  Read More

Research Article
Study on the Effect of Humic Acid and Fulvic Acid on the Wheat Yield and Water Use Efficiency under Drought Stress

Maryam Pourmorad; Mohammad Jafar Malakouti; Mohamad Tehrani

Volume 32, Issue 5 , November and December 2018, Pages 977-985


  Introduction: Optimum water consumption in agricultural production is of vital importance as one of the most important environmental factors affecting the growth and development of the plants, especially in arid and semi-arid regions such as Iran. On the other hand, drought stress, among other environmental ...  Read More

Research Article
The Efficiency of Arabic Gum on Improvement of Physical and Chemical Properties of Saline-Sodic and Non-Saline-Sodic Soils near Lake Urmia

Zahra Habibi; Mehdi Rahmati; Ali Asghar Alilou; Esmaeil Karimi

Volume 32, Issue 5 , November and December 2018, Pages 987-1001


  Introduction: The use of soil amendments more specifically bio-polymers is increasing nowadays. Arabic Gum is also one of the hydrogels that are capable for soil modification. It seems that the main usage of amendments in soils is to improve the structure of intended soils. Saline-sodic soils are among ...  Read More

Research Article
Effect of Sulfur and Manure on Yield and Quality of Date Fruit c.v Barhee

Hojat Dialami

Volume 32, Issue 5 , November and December 2018, Pages 1003-1012


  Introduction: Date palm is considered as one of the important fruit trees in Iran. According to agriculture statistic book of Iran (2015-2016), mature date plantation area and production of Iran are 230000 hectares and more than 1000000 tons, respectively. This crop usually is planted in south of Iran ...  Read More

Research Article
Evaluation of Simulated Precipitation and Temperature from CMIP5 Climate Models in Regional Climate Change Studies (Case Study: Major Rainfed Wheat-Production Areas in Iran)

Mojtaba Shokouhi; Seied Hosein Sanaei-Nejad; Mohammad Bannayan Aval

Volume 32, Issue 5 , November and December 2018, Pages 1013-1014


  Introduction: Achieving sustainable practices of mitigation and adaptation to climate change requires accurate projections of climate change in each region. In this regard, Coupled Model Inter-comparison Project (CMIP) over the past 20 years has shown a good performance. Therefore, new CMIP5 climate ...  Read More

Research Article
Investigating the amount of Ttritium (3H) in Precipitations and Determining the Relative Age of Groundwater Resources in West of Kermanshah

Hossein Mohammadzadeh; Toba Soleymani valikandi

Volume 32, Issue 5 , November and December 2018, Pages 1029-1041


  Introduction: Tritium is the only radioactive isotope of hydrogen, with a half-life of about 12.3 years, in water molecule which can be used to determine the age of water in a hydrological cycle. Although hydrogen bomb tests entered a lot of tritium into the atmosphere and then into the hydrological ...  Read More