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Articles by M. Albaji
Total Records ( 8 ) for M. Albaji
  M. Behzad , M. Albaji , P. Papan , S. Boroomand Nasab , A.A. Naseri and A. Bavi
  Here a land suitability evaluation study for key productions of the region, including wheat, alfalfa, maize and barley, covering an area of 15831 ha was carried out in the region. Using the findings of the semi-detailed soil studies for this area, 2 soil families and 8 soil series in 2 physiographic units was identified. Physiologic requirements of each crop were also determined and rated based upon the proposed methods (Parametric methods and Simple limitation method). Qualitative evaluation was carried out by means of simple limitation and parametric methods (Storie and Root Square Method) and comparing land and climate characteristics with crop needs. The index obtained for barley, wheat and alfalfa was higher in comparison to that developed for maize. Limiting factors in different crop yield in the region along with climatic variables included soil physical properties, especially its carbonate contents, soil salinity and drainage. From the two methods used i.e., simple limitation and parametric methods (Storie and Square root methods), the latter (Square root methods) produced more realistic results in respect to the existing conditions of the region.
  M. Albaji , S. Boroomand Nasab , H.A. Kashkuli , A.A. Naseri , G. Sayyad and S. Jafari
  The main objective of this research is to compare two different irrigation methods according to parametric evaluation system in an area of 15831 ha in the North Molasani region`s soil located in Khuzestan province, Southwest Iran. Soil properties of the study area including texture, depth, electrical conductivity, drainage, carbonate content and slope were derived from a semi-detailed soil study regarding North Molasani plain in a scale of 1/20000. After analyzing and evaluating soil properties, suitability maps were generated for both methods by means of Remote Sensing (RS) and Geographic Information System (GIS). The results showed that 163 ha of the studied area were highly suitable for Surface Irrigation methods. Whereas 2288 ha of the study area was highly suitable for drip irrigation methods. Also, it was found that some series coded 2, 3 and 5 covering an area of 7582 ha, were not suitable to be used for surface irrigation systems and two series coded 3 and 5 with an area of 1381 ha were classified not suitable for drip irrigation systems. Moreover, the results indicate that by applying drip irrigation instead of surface irrigation methods, suitability classes of 8732 ha (55.16%) of North Molasani plain`s land will improved. Ultimately, drip irrigation system was suggested as the best method to be applied to the said study area. The main limiting factors in using both surface and drip irrigation methods in this area were soil carbonate and drainage.
  M. Albaji , A. Landi , S.Boroomand Nasab and K. Moravej
  The main objective of this research is to compare two different irrigation methods according to parametric evaluation system in an area of 77706 ha in Shavoor Region in Khuzestan province, Southwest of Iran. Soil properties of the study area including texture, depth, electrical conductivity, drainage, calcium carbonate content and slope were derived from a semi-detailed soil study regarding Shavoor plain in a scale of 1/20000. After analyzing and evaluating soil properties by means of Geographic Information System (GIS), suitability maps were generated for both methods. The results showed that 14952.07 ha of the studied area were highly suitable for drip Irrigation method though not suitable enough for the surface irrigation method. Also, it was found that some series coded 3, 6, 7, 10, 11, 12, 22 and 23 covering an area of 27578.26 ha were not suitable to be used under both irrigation systems. Ultimately, drip irrigation system was suggested as the best method to be applied to the said study area. The main limiting factors in using both surface and drip irrigation methods in this area were soil salinity and drainage.
  A. Landi , S. Boroomand-Nasab , M. Behzad , M.R. Tondrow , M. Albaji and A. Jazaieri
  The main objective of this research is to compare different irrigation methods based upon a parametric evaluation system in an area of 43700 ha in the Fakkeh region located in Elam Province, West Iran. Soil properties of the study area including texture, depth, electrical conductivity, drainage, calcium carbonate content and slope were derived from a semi-detailed soil study regarding Fakkeh plain in a scale of 1:20000. After analyzing and evaluating soil properties, suitability maps were generated for surface, sprinkle and drip Irrigation methods by means of Remote Sensing (RS) Technique and Geographic Information System (GIS). The results showed that 1715 ha (3.93%) of the studied area were highly suitable for surface irrigation method whereas 7365 ha (16.86%) of the study area highly suitable for sprinkle irrigation methods. Also, it was found that 28190 ha (64.51%) of the study area were highly suitable for drip irrigation methods while some land units coded 1.1, 7.1 and 4.1 covering an area of 9335 ha (21.36%) were not suitable to be used for surface irrigation systems and one land unit coded 7.1 with an area of 735 ha (1.68%) was classified as unsuitable for sprinkle and drip irrigation systems. The results demonstrated that by applying drip irrigation method instead of surface and sprinkle irrigation methods, land suitability classes of 36790 ha (84.19%) for Fakkeh Plain will improve. Also, by applying sprinkle Irrigation instead of surface and drip irrigation methods, land suitability classes of 6945 ha (15.89%) of this plain will improve. The comparison of the different types of irrigation techniques revealed that the drip irrigation was more effective and efficient than the surface and sprinkle irrigation methods for improving the suitability to the irrigation purposes. Also, the sprinkle irrigation was more useful than surface irrigation method. Additionally, the main limiting factor in using surface and sprinkle irrigation methods in this area was soil texture and the main limiting factor in using drip irrigation methods was soil calcium carbonate content.
  A. Bavi , H. A. Kashkuli , S. Boroomand , A. Naseri and M. Albaji
  The sustainability of irrigated agriculture depends upon consistently achieving high irrigation application efficiency. In semi-arid areas, the portion of water that might be lost due to wind and evaporation would be significant. Thus a proper understanding of factors affecting spray losses (Ls) in sprinkler irrigation is important for developing water conservation strategies. The objectives of this study include: characterize Ls under different weather conditions and operating pressures for semi-portable hand move sprinkler system in western south of Iran (Khuzestan Province); propose adequate predictive equations by using multiple regression and Suggest several recommendations for helping about design and management for sprinkler irrigation system in semi-arid areas. The results showed that wind velocity and vapor pressure deficit were the most significant factors affecting the evaporation losses. Exponential relationships between the evaporation losses and both wind velocity and vapor pressure deficit have been found. For the operating pressures used in this study the least effect on evaporation was found. Combined losses from a sprinkler system for a given set of operation conditions have been estimated by using the results obtained from the experiments. Combined losses ranged from 4.4 to 8.9% of the applied water.
  H. Moazed , A. Bavi , S. Boroomand-Nasab , A. Naseri and M. Albaji
  In order to study the effects of different wind conditions, operating pressures, various sprinklers layouts and spacing on water distribution uniformity in sprinkler irrigation system a research project was conducted under 3 different wind velocities (0-5, 5-7 and > 7 m sec-1), using 3 operating pressure (35, 40 and 45 m), three spacing on the lateral pipeline (15, 18 and 21 m) and 3 different layouts (square, rectangular and triangular). Simulation experiments were conducted to estimate water distribution uniformity. The results indicated that the distribution coefficient uniformity decreased with the increase of the wind velocity. With the increase of wind velocity up to 7 m sec-1, the decrease of coefficient uniformity was not significant (the coefficient was reduced by 20% in the range of wind velocity applied). The highest water distribution coefficient uniformity was occurred on 15x5 m spacing while the lowest value was achieved for spacing of 21x21 m and sprinkler spacing to spray diameter of 0.5x0.5 with the increase of sprinklers spacing to the spray diameter, coefficient uniformity is reduced, especially at higher wind velocities. Therefore at higher wind velocities, it is recommended to reduce sprinklers spacing to spray diameter ratio and use square arrangement in order to achieve acceptable uniformity.
  S. Boroomand Nasab , A. Bavi , S. Karami and M. Albaji
  The primary objective of the present study was to evaluate the polluting sources and inflow of the Shoteit River and offer several practical solutions to reduce such contaminations. Therefore, it is essential to determine the polluting load of the inflowing wastes to the River. The polluting sources of Shoteit River can be divided into three sectors including agricultural, industrial and urban. Contaminants were identified and the polluting load was calculated accordingly. The total annual pollution load flowing into Shoteit River from the cities of Shushtar and Gotvand includes 1539 t of BOD5, 4493 t of COD and 8071 t of TDS. The result of present study, as expected, showed that most pollution of Shoteit River environment is caused by agricultural wastes having a higher discharge compared to the wastes produced by the two other sectors. Industrial polluting sources have the second largest polluting load to the Shoteit River. The urban polluting sources are in the third position. It should also be noted that solid wastes affect the pollution state of this River. After analyzing the data, several practical solutions are proposed to alleviate the problems caused by polluting inflow to the River. Alternatively, constructed wetlands can be used for primary treatment, where the wetland is the only type of treatment used and in this case, toxic effects on the aquatic plants due to the high organic loading of the influents have been reported.
  A. Mahjoobi , M. Albaji and K. Torfi
  The objective of the present investigation was to evaluate some total heavy metal content such as Cd, Pb, Cr, Ni and Cu in kondok soils and to determine the relationships between the contaminants and other physico-chemical soil properties. Currently, Cd, Pb, Cr, Ni and Cu do not seem in toxic levels. Also, the relationship between total heavy metal contents and some soils properties that was investigated on 69 disturbed soil samples. Significant relations between total heavy metal contents and some soil properties were determined at p<0.01.
 
 
 
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