Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Investigation of the Sugarcane Bagasse Adsorbent Efficiency For Nitrate Removal from Agricultural Outflow Drainage
1
10
FA
Milad
Hashemi
Ph.D. Student of Irrigation and Drainage Department, Faculty of Water Sciences Engineering, Shahid Chamran University of Ahvaz, Iran.
Abed Ali
Naseri
Professor of Irrigation and Drainage Department, Faculty of Water Sciences Engineering, Shahid Chamran University of Ahvaz, Iran.
abdalinaseri@yahoo.com
Afshin
Takdastan
Associate Professor of Environmental Technolohies Research Center, Ahvaz, Jundishapur University of Medical Sciences, Ahvaz, Iran.
takdastan-a@ajums.ac.ir
10.22055/jise.2017.13319
Nitrate is a non-concentrated source of environmental pollution caused by fertilizer overdose in agricultural wastewater. These poisonous compounds are accumulated in aquatics tissues specially fishes and affect their reproduction and procreation ability. Generally, to eliminate nitrate from urban, agricultural, and industrial wastewater using of physical, chemical and biological methods is very complicated and expensive at industrial scales. Surface absorption method is one of the useful methods for removing nitrate compounds. Due to the high cost of activated carbon, researchers have always been searching for a more economic method alternatively to remove nitrate. Bagasse is one of the wastages of sugarcane industry which contains some amounts of cellulose, pentosane and lignin. In this research, efficiency of sugarcane bagasse absorbent for nitrate removal from agricultural drainage have been studied.
Sugarcane Bagasse,Taguchi method,Agricultural drainage,nitrate
https://jise.scu.ac.ir/article_13319.html
https://jise.scu.ac.ir/article_13319_093f6de535dcdc1487461303933da45d.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Effect of Irrigation with Magnetized Water on Infiltration and Soil Salinity
11
19
FA
Ali
Shahnasari
0000-0003-1135-8174
Associate Professor, Water Engineering Department, Sari Agricultural Sciences and Natural Resources University
aliponh@yahoo.com
Poya
Shirazi
PhD student of Irrigation and Drainage, College of Agriculture, Water Engineering Department, Ferdowsi University of Mashhad.
p.shirazi.a@gmail.com
10.22055/jise.2017.13320
Infiltration plays an effective role in hydrologic cycle, regional ecology, run-off rate, soil erosion and degradation, solute transport, and groundwater pollution (Hillel, 1998). Water infiltration is strongly dependent on soil structure, and thus, the limitation of water infiltration is related to poor soil structure (Conolly, 1998). Magnetic water can be obtained by letting water pass through a permanent magnet or electromagnet, which is installed in or on a feeder pipeline (Herzog et al., 1989). Magnetized water has been studied by many researchers (Srivastava et al. 1976; Carbonell et al., 2002; and Mostafazadeh-Fard et al., 2012). <br />The objective of the present research was to investigate effect of irrigation with magnetized water on infiltration and soil salinity in comparison with non-magnetized water in three different soil textures.
Permeability,Electrical conductivity,Magnetized Water,Soil texture
https://jise.scu.ac.ir/article_13320.html
https://jise.scu.ac.ir/article_13320_f37f802d4fe5d02748229902aca14429.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Experimental Study of the Effects of Immersed Vanes Distance from the Bank on Erosion Pattern and Bed Sedimentation
21
33
FA
hossein
salaj mahmoodi
Ph.D. Educated of Department of Hydraulic Structures, Shahid Chamran University of Ahvaz, Iran
hossiensalaj@yahoo.com
Mahmoud
Shafai Bajestan
0000-0003-3688-9561
Professor of Department of Hydraulic Structures, Shahid Chamran University of Ahvaz. Iran.
m_shafai@yahoo.com
10.22055/jise.2017.13307
Due to the formation of the secondary and helicoidally vortices in river bend, bed scour at outer bank toe and sedimentation in inner banks can cause dramatic river morphological changes. To manage the sedimentation of the river bed in bends, many techniques have been developed in the past. In this regard, valuable resources such as Devan (2009), Sharma and Mahapatra (2012), Yun et al. (2012), Jarrahzadeh and Shafai Bejestan (2012), Mashkornia and Shafai Bejestan (1392), Shafai Bejestan et al. (2010), Jia et al. (2009), Abad et al. (2008), Bhuiyan et al. (2010) can be found in the literature. All of these measures are installed at the bed which can initiate a new scour pattern around the structure and destroy the structure itself. Therefore, in the present study a new technique, immersed vane, has been experimentally investigated which are installed above the river bed. MethodologyIn this research, a distorted rigid bed physical model of the Jangiye Karun River bend, which is a 180 degree, downstream of Ahvaz with a horizontal scale of 300 and a vertical scale of 50 is constructed. To investigate erosion and sedimentation of raw materials, polyethylene with an average diameter of 2 mm and a density of 1.1 were used as sediment. The experiments were carried out in discharge of 21.4 liters / s and 15.5cm in depth (depth in the upstream of the bend) equivalent to the Froude number of 0.2 (equivalent to flood discharge with a two year return period in the Karun River). Adjusting of the flow depth within the model (=15.5cm in all tests) was done by the downstream gate. 7 number of Galvanized vanes with a thickness of 2 mm in dimensions of 6 * 3 cm were welded to a rod. This rod was held by an arm that was attached to the bank. The system was designed to allow the vanes to be placed at any desired distance from the bank. Vanes are tested in different distances (d) zero, 3, 6, 9, 12 and 15 cm from the outer bank. At the end of each test bed topography was measured and were plotted and compared with the results of the baseline test.
River,Bend,Bank erosion,immersed vanes
https://jise.scu.ac.ir/article_13307.html
https://jise.scu.ac.ir/article_13307_3f0fb23afe5e0e437e78c007187b5a08.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Experimental Study on Effects of Permeability and Spur Dike Series Length on Scour-Hole Dimensions in a 90° mild bend under
non-submerged conditions
35
48
FA
maryam
champour
دانشگاه شهید چمران اهواز
maryam_champour@yahoo.com
Seyed Mahmoud
Kashefipour
0000-0001-7108-828X
Professor, Faculty of Water Sciences Engineering, Shahid Chamran University, of Ahvaz, Iran
kashefipour@excite.com
10.22055/jise.2017.13260
River changes happen due to the periodic erosion and sedimentation along river bed, destruction and widening of river banks, movement of the meandering pattern and flow direction, changing of river form (braided, sinusoidal, and straight), and shortcut or diversion of river path. One of the common hydraulic structures for erosion controlling in river bend is spur dike. Ezzeldin et al (2007) conducted experiments on a permeable spur dike to investigate the effect of the fluctuation ratio and the angle of attack on the scour hole dimensions. Based on the obtained results, for the same flow conditions and the degree of tightness, a 30-degree angle has been found to have a good effect on scour depth reduction in the nose and controlling coastal erosion. Nasrollahi et al (2008) examined the experimental investigation on the scouring hole around permeable and impermeable spur dikes. Based on the dimensional analysis, the important parameters affecting the scour hole are Froude number, permeability of the spur dike, and the ratio of flow depth to the length of the spur dike, the ratio D50 to the spur dike length and the channel width-to-length ratio. The results showed a significant reduction in the maximum permeability of scour depth compared to an impermeable spur dike, and there were also relationships for maximum scour depth.
Permeable spur dike,Scouring,River Bend,River bank protection
https://jise.scu.ac.ir/article_13260.html
https://jise.scu.ac.ir/article_13260_a3374f0669e26b73151eb420ca4e9e0c.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Combined Effects of Water Stress and Salinity Stress on Yield Quantity and Quality of Grain Maize Varieties ksc-260
49
61
FA
mohammad amir
babaee
M.Sc., Student of Irrigation and Drainage, Faculty of Agriculture Science, University of Guilan,Iran.
mohammad_t101@yahoo.com
mohammad hassan
biglouei
Associate Professor of Irrigation and Drainage, Faculty of Agriculture Science, University of Guilan, Iran
m.biglouei@yahoo.com
nader
Pirmoradian
Associate Professor of Irrigation and Drainage, Faculty of Agriculture Science, University of Guilan, Iran
npirmorad@yahoo.com
10.22055/jise.2017.13308
Water shortages, particularly in arid and semi-arid areas have been threatening food security for millions of people. Considering that Iran is located in the arid and semi-arid zone, crop production is not possible without irrigation management. In areas where crops are irrigated, management and proper planning is necessary for optimal use of water. <br />Response to the lack of water and plant species, length and duration of stress, age and developmental stage of the plant, and cells and plant and components of under cell depends on its structure (Bray., 1997). <br />Salinity is one of the main stresses on the cultivation of plants. Salinity stress is an important limiting factor in agricultural systems, which causes difficulties in the process of growth and development of plants (Taiz and Zeiger., 1998). Deficit irrigation is an optimum solution to produce in water deficit (English. et al., 1990). Salinity has a significant effect on morphological, phonological, and physiological traits in most plants (Wang et al., 2003). The most obvious and clearest effect of salinity is the delay in plant growth. The objective of this research is to study combined effects of deficit stress and salinity stress on yield quantity and quality of maize (single cross 260) in the climatic conditions of Shahrood, which can be effective in the optimal use of saline and brackish water in the event of water constraints for corn production.
Tensiometer,Depletion percentage of available soil moisture,Water use efficiency
https://jise.scu.ac.ir/article_13308.html
https://jise.scu.ac.ir/article_13308_e550a045b8e78c05fa72e645e23733e5.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Assessment and Analysis of Khur-e-khuran International Wetland Environmental Risks Using Multi-Criteria Decision-Making Methods
63
75
FA
Samira
Jafariazar
Master Degree Assessment and Land use of Bebahan khatam Alanbia University of technology, Behbahan, Iran.
samirajafari1392@gmail.com
Gholam Reza
Sabzghabaei
Assistant Professor, Department of Environment, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
sabzghabaei@bkatu.ac.ir
Mortaza
Tavakoly
Associate Professor of Geography and Urban Planning Tarbiat Modarres University
tavakoly52@gmail.com
Seyedeh Soolmaz
Dashti
0000-0001-6002-7174
Assistant Professor, Department of Environment, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
solmazdashti@gmail.com
10.22055/jise.2017.13262
Wetland ecosystems are stable ecosystems on earth providing considerable ecosystem characteristics. Wetland ecosystems, especially marine coastal wetlands are among the most important and also the most vulnerable world's environmental resources. Which has always been sensitive to the fragility of coastal areas, high population density, and intensive human activities are faced with the threat of destruction. Although, remarkable advances have been observed in the quantity and valuing some key ecosystem products and the services provided by these habitats, there are still some major challenges, with the lack of sufficient knowledge about the relationship between the changes developed in the structure of the ecosystem and the performance of these ecosystems in providing services being the greatest challenge. Based on this, monitoring the changes trend in wetlands and their surrounding lands can be effective in the management of these valuable ecosystems. Investigating the environmental risk is a suitable instrument for evaluating and ensuring understanding of the relationships between stressor factors and environmental effects especially in wetland ecosystems. Environmental risk assessment is an important tool for environmental management in order to reduce the risks in the ecosystems, and to achieve sustainable development that nowadays, in the planning and policies of various countries, is taken into consideration. Today, multi-criteria decision-making methods are employed in evaluating the risk in many studies. Examining the background of applying multi-criteria decision-making methods in risk evaluation indicates that these methods have been used in different cases either alone or together with other methods for risk evaluation. This study aimed to identify the ranking and assessment environmental risks threatening Khur-e-Khuran International Wetlands and Hara Biosphere Reserve, in Hormozgan province in 2015<strong>.</strong>
Risk assessment,International wetland,Multi-criteria decision-making
https://jise.scu.ac.ir/article_13262.html
https://jise.scu.ac.ir/article_13262_7c6da50ab8bf10da61f479e95c6e6e4f.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
The Process of Plunge Pool Bed Form Changes by a Vertical Jet Impinging Upon Non-Cohesive Sediment
77
85
FA
Akbar
Armaghani
M.Sc. Graduate, Department of Civil Engineering, Jundi-Shapur University of Technology, Dezful, Iran.
armaghani.akbar@gmail.com
Babak
Lashkarara
Assistant Professor, Department of Civil Engineering, Jundi-Shapur University of Technology, Dezful, Iran.
babak_lashkarara@yahoo.com
Ali Mohammad
Akhond Ali
0000-0003-4506-692X
Professor, Department of Hydrology and Water Resources, Shahid Chamran University of Ahvaz, Iran.
aliakh@scu.ac.ir
10.22055/jise.2017.22753.1624
The scour process induced by plunging jets is an important topic for hydraulic engineers. It is important to forecast the various scour hole characteristics for avoiding the failure of a hydraulic structure. Base on this evidence, this study aimed to investigate the equilibrium morphology caused by vertical circular impinging jet. Aderibigbe andRajaratnam (1996) classified the flow patterns over asymptotic scour hole based on the values of the erosion parameter (<em>Ec</em>) and the pressure parameter (<em>K</em>) as either the strongly deflected Jet regime (SDJR) or the weakly deflected jet regime (WDJR). It appears that the two regimes are linked by a narrow transition regime. Chakravarti et al. (2013) conducted experiments to investigate the effect of static and dynamic scouring in plunge pool under submerged circular vertical jets. In this study, the process of changing the plunge pool bed form has been studied under vertical jet impinging upon non-cohesive sediment.
Dynamic scour,Static scour,Vertical jet,Spray,Froude number of jet
https://jise.scu.ac.ir/article_13259.html
https://jise.scu.ac.ir/article_13259_e2deca5ef058207af8455be6fd6179dc.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Spatio-temporal assessment of groundwater quality parameters using geo-statistical techniques ( Case Study: The western district of the Lake Urmia, Iran)
87
97
FA
Mohsen
Farahi
Department of Natural Resource, Higher Educational Complex of Saravan, Iran.
mohsen.farahi62@gmail.com
Hosein
Jahantigh
Department of Natural Resource, Higher Educational Complex of Saravan, Iran.
hjahantigh5@gmail.com
hassan
esmaeili
M. Sc Student, Department of Hydrology and Water Resources, Shahid Chamran University of Ahvaz, Iran.
h-esmaeili@mscstu.scu.ac.ir
Aboutaleb
Hezarjaribi
Associate Professor Department of Water and Soil Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
10.22055/jise.2017.13331
Geographic information system (GIS) is an appropriate tool to enhance the sustainable development of groundwater resources. Belmonte et al. (1999) introduced applying some of the GIS tools for integrative management in cultivated regions. Dixon (2005) obtained quality vulnerability maps of groundwater using fuzzy logic and GIS in Kansas State, USA. Pathak and Hiratsuka (2011) also applied qualitative modeling to evaluate the groundwater extraction management using GIS approach in Kathmandu, Nepal . They suggested some solutions to managers to make decision. In this study, we evaluated the parameters of electrical conductivity, sodium concentration, and the ratio of sodium absorption in Lake Urmia using geo-statistical methods and quality standardized modeling of the Ministry of Energy for agricultural water and introducing the GIS as an applicable tool for managers in decision making.
GIS,modeling,Geo-statistical,water quality,Groundwater
https://jise.scu.ac.ir/article_13331.html
https://jise.scu.ac.ir/article_13331_8b977b5c8416e4cf59e250cbc50ea913.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Effects of Nose and Piano Keys Weir Parapet Wall on Floating Woody Debris
99
107
FA
Majid
Rahimpour
معاون آموزشی و پژوهشی دانشکده، دانشیار بخش مهندسی آب، دانشگاه شهید باهنر کرمان
rahimpour@uk.ac.ir
Majid
Rahimpour
دانشگاه شهید باهنر کرمان
mshirani.as@gmail.com
محمد مهدی
احمدی
استادیار دانشگاه شهید باهنر کرمان
ahmadi_mm@uk.ac.ir
10.22055/jise.2017.13309
A hydraulic structure is a device designed to retain, regulate, or control the flow of water. The most common type of hydraulic structures are weirs. Weirs are overflow structures that stretch across an open channel of water, and are meant to alter the channel’s flow characteristics making it easier to measure the volumetric rate of water flow. The Piano Key Weir (PKW), a type of Labyrinth weir is a hydraulically attractive option to linear overflow weirs, increasing the unit discharge for similar heads and spillway widths (Anderson, 2011). Together with its high discharge capacity for low heads, this geometry makes these weirs interesting in dam (Laugier, 2007). Discharge passing capacity of piano key weir is higher than that of labyrinth weir for same condition (Anderson and Tullis, 2013). In PKW type A, the upstream and downstream overhangs are existence, and if PK weir without downstream, upstream or both overhangs, it is B, C and D respectively (Lemperier and Quamane, 2003). <br />Anytime an engineered structure like a weir structure is placed in a river environment, the possibility exists that it will encounter debris. The impact of this debris on a structure is an important aspect of the design (Pagliara and Carnacina, 2010). Historically, debris accumulation on bridge piers and hydroelectric dams has been among the chief concerns associated with river debris. As the amount of debris builds on an object, the force it exerts on the object can result in catastrophic failure and it reduces the flow, resulting in the buildup of a backwater and greatly reducing the efficiency of energy conversion. <br />Due to the geometric properties and low flow head of PK weir, floating debris obstruction can occur in this structure. As shown in Fig.1, fundamental parameters on a PKW are including: height of PK-Weir P, total width of PK-Weir W, inlet key width W<sub>i</sub>, outlet key width W<sub>o</sub>, length of PKW B, PK weir footprint length B<sub>b</sub>, upstream (outlet key) overhang lengths B<sub>o</sub>, downstream (inlet key) overhang lengths B<sub>i</sub>, weir wall thickness T<sub>s</sub>, and flow discharge Q. In this research the effect of floating debris on PK weir obstruction investigated experimentally. The geometry of PKW and debris parameter was studied.
Discharge Coefficient,Floating debris,Obstruction,Piano Key Weir,Sample of wood
https://jise.scu.ac.ir/article_13309.html
https://jise.scu.ac.ir/article_13309_5f1dea443049ba8dc4094890d36e7c9f.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
An Estimation of Actual Evapotranspiration and Single and Dual Crop Coefficients for Calendula officinalis L.(Case Study: Kerman)
109
121
FA
فریده السادات
هاشمی نسب خبیصی
دکتری هواشناسی کشاورزی دانشگاه فردوسی مشهد
farideh_hasheminasab@yahoo.com
محمد
موسوی بایگی
استاد هواشناسی گروه مهندسی آب دانشگاه فردوسی مشهد
mosavib@um.ac.ir
بهرام
بختیاری
دانشیار هواشناسی کشاورزی گروه مهندسی آب دانشگاه شهید باهنر کرمان
drba777@yahoo.com
10.22055/jise.2017.13310
To date, Calendula Officinalis L. applications have been expanded as a decorative and medical plant, in horticulture, green spaces, pharmaceuticals, and cosmetics industry. Calendula officinalis L. can be broadly applicable as an antiseptic and anti-inflammatory as well as a light antibacterial and antiviral agent. Being native to Mediterranean countries, water requirement and crop coefficient (K<sub>c</sub>) pertaining to Calendula officinalis L. in arid regions need more evaluations. To know about the water requirement of crops is necessary to manage agricultural water and irrigation scheduling in hydrological studies and field management. This is closely related to the exact estimation of crop evapotranspiration (ET<sub>c</sub>) which depends on crop characteristics, development stage, weather parameters, environmental status, and management practices. <br />Miranda et al. (2006) used weighing lysimeter for measuring tabasco pepper daily evapotranspiration and crop coefficient. Their results showed total ET<sub>c</sub> observed during the 300-day crop season was 888 mm, with maximum daily value of 5.6 mmd<sup>-1</sup>. Ghamarnia et al. (2014) used drainage lysimeters to estimate K<sub>c</sub> of black cumin in semi-arid regions of Iran. In their research, the black cumin water requirement of 724 mm was estimated using water balance method. Bakhtiari et al. (2011) recorded hourly data from Grass reference evapotranspiration in three periods in a year using lysimeter in the semi-arid climate of Kerman Province. Lysimetric data can be used to estimate six grass evapotranspiration models, including; FAO-56 Penman–Monteith, Penman-Kimberly 1996, FAO-24 Blaney-Criddle, FAO-24 Radiation, Makkink, and Hargreaves-Samani. In all three periods, the Makkink method indicated poor performance; hence, it cannot be recommended for this region. <br />Crop coefficients were calculated for many plants except medicinal plants during the growing season. The results were reported by FAO in the table below. According to the studies mentioned above, the crop coefficient and crop evapotranspiration were calculated for medical plants. In Iran, due to the great use of medicinal plants as a food additive or medicine, calculating the crop coefficient and evapotranspiration for medical plants is inevitable. Low rainfall in arid and semi-arid climate regions of Iran, makes it necessary to calculate the evapotranspiration, in order to determine the amount of water required for the cultivation region of medicinal plants.
Evapotranspiration,Crop Coefficients,Calendula officinalis L,Lysimeter
https://jise.scu.ac.ir/article_13310.html
https://jise.scu.ac.ir/article_13310_8ba08b6d6a98dbc779e612915172d9d3.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Effect of Different Irrigation Levels on The Growth and Yield of Pistachio in Anar City, Kerman Province
123
136
FA
ابوالفضل
علی اکبری
دانشجو
abolfazl_arshad@yahoo.com
شاهرخ
زندپارسا
دانشگاه شیراز
zandparsa@yahoo.com
10.22055/jise.2017.16548.1212
Pistachio is one of the most valuable agricultural products, and it has a special position among the agricultural products in Iran. Overall water use for Pistachio is high relative to other tree crops, but they are extremely tolerant to salinity and water shortage in arid and semiarid regions of Iran. Due to the high water requirements of pistachio trees, lack of water for proper production is one of the most important problems in Iran and due to the reduction of water resources and increased irrigated agricultural lands in Iran; it suffers from severe water deficits. <br />Phene et al. (1985) used irrigation treatments of 25, 50, 75, and 100% of standard evapotranspiration by trickle irrigation. Their results showed that pistachio yield and qualities profoundly decreased in treatments of 25 and 50% of full irrigation and there were no significant differences of its yield and qualities among treatments of 75% and 100% of full irrigation. They did not recommend full irrigation for pistachio trees. Goldhamer (1993) examined the effect of deficit irrigation on pistachio trees and showed that mature trees are resistant to water stress between the formation of the exterior shells until the fast growth of their seed, so, irrigation could be reduced about 50%. Monastra et al. (1996) in an experiment used four drip irrigation regimes of 0, 25, 50, and 75% of standard evapotranspiration and showed that trunk diameter was significantly affected by irrigation water and volume and trunk section was the highest at treatment of 75% for five to seven years after planting. Other researchers also found that deficit irrigation at a stage of plant growth resulted in saving irrigation water in arid and semi-arid areas without any yield reduction (Sedaghati and Hokmabadi, 2015; Memmi et al., 2016). <br />Because of limited water resources in Iran<strong>, i</strong>t is required to use deficit irrigation for obtaining acceptable yield and quality of pistachio. The main objective of this research was to study the deficit irrigation level of pistachio (Akbari cultivar) without decreasing quantity and quality of yield compared to conventional irrigation in the selected region.
Pistachio,irrigation,Yield,Kerman,Cultivar Akbari
https://jise.scu.ac.ir/article_13311.html
https://jise.scu.ac.ir/article_13311_03cf7c2a320a3ee1f07383b02627692e.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
An Evaluation of ARIMA and Holt Winters Time Series Models for Forecasting Monthly Precipitation and Monthly Temperature (Case Study: Latian Station)
137
149
FA
Leila
Goodarzi
گروه مهندسی آب-پردیس ابوریحان
goodarzi.1988@ut.ac.ir
Abbas
Roozbahani
هیئت علمی دانشگاه تهران
roozbahany@ut.ac.ir
10.22055/jise.2017.13312
Climatic parameters including temperature and precipitation have an important role in water resources management of river basin as well as agricultural planning. Time series models are a kind of short-term prediction for these parameters. Precipitation is one of the most important climate parameters that should be addressed in water resources management. This is especially important in Iran, with an average annual rainfall of about 250 mm. Another climate parameter is temperature, which changes the climate structure of each location. For this reason, the study on temperature at various time and space scales has been addressed in a large part of the climatological researches. Time series analysis is widely used as a tool for temperature and rainfall predictions. So far, various studies have been done to predict climate and hydrologic parameters using time series analysis models. Kaushik and Singh (2008) predicted monthly temperature and precipitation in India using the seasonal Arima Model. There are also other researchers focused on application of ARMIA model such as Naill and Momani (2009), Tularam and Ilahee (2010) and Mondal et al. (2014). Holt Winters is also one of the time series models used for prediction. For example, Costa et al. (2015) predicted water quality parameters using the Holt Winters model and presented its effectiveness in the prediction. <br />In this research, the ability of time series models for forecasting monthly temperature and precipitation of Latian station in Iran has been examined. Trend analysis was conducted using the Seasonal Mann- Kendall test and then, various Autoregressive Integrated Moving Average Models (ARIMA) as well as Holt Winters model were fitted to the data and the best time series model was finally selected.
Time series,Seasonal Mann- Kendall test,Seasonal ARIMA model,Holt Winters model,Latian
https://jise.scu.ac.ir/article_13312.html
https://jise.scu.ac.ir/article_13312_b466ad3c13adc239f9e810f7c2f50ce7.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
An Evaluation of various developing methods for sediment rating curve and computer simulationmodels for sediment load estimation in Mazandaran basin, Iran
151
166
FA
منوچهر
حیدرپور
0000-0000-0000-0000
استاد گروه مهندسی آب -دانشگاه صنعتی اصفهان
heidar@cc.iut.ac.ir
فاطمه
فتاحی
دانش آموخته کارشناسی ارشد مهنسی آبیاری و زهکشی- دانشگاه صنعتی اصفهان
fateme_fattahi85@yahoo.com
امیر
حق شناس آدرمنابادی
دانشجوی دکتری منابع آب- دانشگاه صنعتی اصفهان
haghshenasamir@yahoo.com
نادیا
کیا
دانش آموخته کارشناسی ارشد مهندسی آبیاری و زهکشی- دانشگاه صنعتی اصفهان
kia_141491@yahoo.com
10.22055/jise.2017.13313
A sediment curving rate is a method to describe the relationship between river discharge and suspended sediment load for a particular location. The rating curves have been used to predict sediment load by hydrologists for more than sixty years (Horowitz, 2002). Obtaining more accuracy in determination of sediment load needs to long-term continuous data with a sufficient frequency. Mostly, a power function regression is used for sediment rating curves (Asselman, 2000): <br /> <br />Q<sub>s</sub>= aQ<sup>b</sup> (1) <br /> <br />The other form of this equation is linear log-transformation: <br /> <br />Log (Q<sub>s</sub>) = log (a) + b log (Q) (2) <br /> <br />Where Q is river discharge (m<sup>3</sup>/s), Q<sub>s</sub> is suspended load discharge (ton/year), and a and b are regression coefficients . The back transformation of the sediment load to the arithmetic domain creates a bias which can lead to load underestimation (Crowder et al. 2007). The main objective of this study is to determine the sediment rating curve for different 26 hydrometric stations in the Mazandaran basin, Iran, with various data separation methods (daily, monthly, seasonal, annually, classified, and high discharge and low discharge flow months). The efficiency of each rating curve was evaluated using different statistical characteristics. Another objective is to evaluate the sediment load and sediment yield of Mazandaran basin.
Sediment rating curve,Mazandaran basin,Statistical efficiency criteria,Simulating,SWAT
https://jise.scu.ac.ir/article_13313.html
https://jise.scu.ac.ir/article_13313_554ab112ff97d55852ccb881045de47a.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Groundwater Simulation Using Artificial Neural Networks and ArcGIS Under Different Scenarios (Case Study: Mahyar Plain)
167
180
FA
nastaran
zamani
دانشجوی کارشناسی ارشد دانشگاه صنعتی اصفهان
nst_zamani@yahoo.com
محسن
جواهری طهرانی
دانشجوی دکتری دانشگاه سمنان
m.javahery110@gmail.com
سید سعید
اسلامیان
0000-0002-6648-3354
استاد گروه آب دانشگاه صنعتی اصفهان
saeid@cc.iut.ac.ir
سید فرهاد
موسوی
استاد دانشکده عمران دانشگاه سمنان
mousavi_sf@yahoo.com
10.22055/jise.2017.13314
North Mahyar plain in Isfahan, is one of the plains which has confront water crisis. In these circumstances, attention to the capacity of the resources and proper management is an important issue to pass this condition. Chitsazan et al. (2013) noted that artificial neural network is able to figure out the relation of hydrologic parameter. Also, this tool can be used in water resources management (Coppola et al., 2005). Therefore, by applying artificial neural network, water-table data and cropping pattern in plain, three land-use scenarios were designed. Water table was simulated for water year of 2008 with one-layer network, Levenberg–Marquardt algorithm, and three functions in MATLAB_R2012a. Water table map was prepared by using simulated water table in ArcGIS 10.2, and zoning was performed according to the costs of water pumping. Results showed that 61-86 percent of the plain in all three scenarios had medium limitation. Also, using different management in field like fallowing and planting low-water use crops caused 3 and 5 percent increase in acreage of "without limitation" lands, respectively.
mapping,Cropping Pattern,Water Table,field water management
https://jise.scu.ac.ir/article_13314.html
https://jise.scu.ac.ir/article_13314_ffd467c4b879f0afeadb9ea6525f3354.pdf
Shahid Chamran University of Ahvaz
Irrigation Sciences and Engineering
2588-5952
2588-5960
40
3
2017
11
22
Determining the Optimum Cropping Pattern in Golestan Dam Irrigation and Drainage Network using Genetic Algorithm
181
190
FA
Shakiba
Mirzaee
M.Sc. Graduated Student of Water Engineering Department, Gorgan University of Agricultural Sciences and Natural Resources
mirzai.shakiba@yahoo.com
مهدی
ذاکری نیا
0000-0003-1619-8819
مدیرگروه مهندسی آب دانشگاه علوم کشاورزی و منابع طبیعی گرگان
a_zakerinia@yahoo.com
Mehdi
Shahabi Far
Assistant Professor of Soil and Water Research Institute, Karaj, Iran.
mshahbifar@yahoo.com
Hosein
Sharifan
Associate Professor of Water Engineering Department, Soil and Water Engineering college. Gorgan University of Agricultural Sciences and Natural Resources
newsiaiad@yahoo.com
10.22055/jise.2017.13261
The preparation, formulation and implementation of crop patterns are important activities in the agriculture and food production organizations. According to the significance role of cropping pattern in sustainable production of agricultural and horticultural crops, determining the optimum cropping pattern in irrigation network is necessary. This research objective is maximizing the net profit of farmers using genetic algorithms to determine optimal crop pattern in Golestan dam irrigation and drainage network. This irrigation network has been exploited separately by 4 rural production cooperatives company. For this reason the cropping pattern has been set for each cooperative separately in fall and summer cultures. In fall planting, because of good rainfall and sufficient water, all land area of each cooperative would be cultivated; in this case around 38% remaining excess water would be stored in dam reservoirs. But in the summer planting because of increasing evaporation and decreasing rainfall, irrigation water requirement would be increased, for this reason; the model is taken in an average 34% of the each cooperative area under crops. By using the surplus water of fall planting in summer planting, it can be another 1388 hectares (around 13 %) of land to be planted under irrigated crops and as a result the profit increased up to 37 percent.
Optimization,Cropping patterns,Golestan dam Irrigation and Drainage Network,Genetic Algorithm
https://jise.scu.ac.ir/article_13261.html
https://jise.scu.ac.ir/article_13261_599b9fcb6f117e4fdb77b693bc13f427.pdf