Abstract
Morphometric analysis of watershed has a vigorous protagonist in predicting site for surface irrigation development. Morphometric analysis is the measurement and mathematical examination of the arrangement of the earth’s surface, shape and dimension of its landform. The present study was analyzed the morphometric parameters (liner, areal and relief parameters) of Gudina Wacho watershed for surface irrigation development using GIS. SRTM DEM with 20-meter spatial resolution of the study area was used for the morphometric parameters analysis. The results revealed that the stream orders of the watershed varies from first order to sixth order with a total of 1266 stream numbers measured a total length of 408.98 Kms. It is also elongated in shape, contains high value of bifurcation ratio, high value of drainage density, higher stream frequency, have moderate slopes with moderate gravity flow of water, moderate infiltration and higher soil moisture content. These results revealed the rainwater will reach the main channel more rapidly and thus a high response to runoff. Also indicates it is simple to harvest rainwater / runoff water for surface irrigation development and implies as good category for surface irrigation. Over all of the morphometric analysis reflects the watershed is favorable for surface irrigation development and it can benefit the local community to meet the food demand. For more proper evaluation of the watershed for surface irrigation development, further investigation on the physical land suitability analysis of the watershed is needed.
Highlights
Ethiopia is rain fed agriculture dependent country; with limited use of irrigation for agricultural production [1]
The solution for food insecurity could be provided by comprehensive irrigation development that can lead to overcome the effects of rainfall variability and improve the quality of life for rural population [1, 4]
The present study was analyzed the morphometric parameters of Gudina Wacho watershed for surface irrigation development using Geographic Information System (GIS) techniques
Summary
Ethiopia is rain fed agriculture dependent country; with limited use of irrigation for agricultural production [1]. The main challenge allied with this rainfed agriculture is the high degree of rainfall variability Due to this variability, crop failures and food insecurity are frequent in the country [3]. Irrigation can be broadly classified into three categories such as surface, sprinkler, and drip irrigation methods Under such circumstances more than 90% of the world uses surface irrigation; the reason for this high percentage might be farmers can develop it at farm level with minimal capital investment [2]. To make this farmers’ practice more productive the specified area should study its suitability for surface irrigation development before applying it [5]. Pingale et al [6] reported that morphometric analysis of watershed play a vital role in predicting site for surface irrigation development
Sign-in/Register to view highlights & summary 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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
