Use of simulation techniques for design of sprinkler irrigation systems for farmland in Adiwaniyah governorate

مقدم أطروحة جامعية

Kraidi, Hasan Hadi

مشرف أطروحة جامعية

al-Jumayli, Karim K.
al-Adili, Aqil Shakir

الجامعة

الجامعة التكنولوجية

الكلية

-

القسم الأكاديمي

قسم هندسة البناء و الإنشاءات

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2013

الملخص الإنجليزي

Adiwaniyah governorate suffers of networks deterioration of water resources and irregular distribution of water, despite the multiplicity of sources, which led to the deterioration of agricultural lands and pouring soil in the governorate, due to poor management of its water resources and low ef£ciency of irrigation to less than 27%, thus low productivity of donum that affected on level of living for the people of the province significantly.

For the purpose of addressing this situation and due to the fact that this province is one of the main agricultural governorates in the country where the total arable lands is about 1.85 million donums, beside the data showed that the largest proportion of planted of this area was 47% in 2006, it becomes necessary to study these problems using modern simulation techniques to £nd appropriate solutions in formats easier than the traditional lengthy methods.

In this research, several sot^ware’s models have been used to design and systems management of water resources with adopting meteorological data and measurements at field of the study area.

Soil-Plant-Air-Water (SPAW) computer model was used to analyze the type and properties of soil of the study area, and then using the results of this model as input data for the CropWAT, 2008 model, in addition to data from Adiwaniyah meteorological station, to calculate the wheat crop water requirements, and hence irrigation requirements for a £eld area of 54 donums.

The results of this model were compared with the results of Kharoofa’s equation set for central and southern of Iraq for the same data, and then a system of scheduling irrigation works was designed, for the field in question using the same model, after proposing and designing a periodic hand move sprinkler irrigation system, to reduces the capital cost for the project to enable lands owners getting it, by using (WaterCAD) model.

The results of the designed models were compared in terms of discharges with actually applied discharge on the ground, and this research has indicated that there is a big difference between the applied discharges and that consumed by the plant.

The final design of the designed system capacity is 76.56 m/hr to irrigate area of 54 donums, within 9 days of 15 hours per day, while the average of filed measurements of six fields of wheat in the same area showed that the existing applied discharge is 327 m/hr, with spending 10 days to irrigate 85 donums with not less ten hours per day, so that will contribute to vivification and irrigate about 984400 donums of heath lands.

This study also showed that the use of hand move sprinkler irrigation system saves more than 90% of capital cost of permanent system, as well as simulation techniques provide a lot of effort, time, money and the accuracy of the results in the field of water resources if it is wanted to set up a new study or design of water resources system project The proposed models were designed for specific site data of soil, climate season, topographic of land, field dimensions and cultivated crop.

These models can be used in the same field of the study area for the other crops (maize, sorghum) at summer season, but in deferent operation management and irrigation scheduling, and also could be applied on the ©ther areas by considering the above limitations.

التخصصات الرئيسية

العلوم الهندسية والتكنولوجية (متداخلة التخصصات)

الموضوعات

• العراق
• القادسية(مدينة)
• مياه الري
• الري بالرش

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-417819