Abstract
Generally, the rivers in both the natural and lined form use the open-section system to carry water, either for distribution or conveyance purposes. With time and depreciation effect, this system needs to be change or modify to become more indirectly suitable with growth of cities, and specially with transformation of land use from agricultural to residential. The present paper aims to reach a proper decision to re-distribute the field outlets for a part of AliHneidiyah river in Karbala city, Republic of Iraq, for the distance between stations (0+000) and (4+000), to choose between keeping up the current number of outlets or reduce them to a certain, actually used one. For this study, the cadastral maps were used as a reference to determine the agricultural areas served by the river during its route within the study area, and geographic information system to monitor the change in the nature of these areas represented by gradual transformation from agricultural to residential purpose, by using of satellite images for four different years, 2002, 2007, 2013, and 2016. The results of this study showed a great reduction in the agricultural areas on both sides of the chosen length of river route by a percentage of 88%, which leads to change location and specifications of the remain, actually used outlets. In addition, use the whole section for conveyance purposes to protect the water quality. This study showed that the geographic information system is a good and helpful technique for evaluation and make decisions of water related subjects.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call