SOIL AND WATER SALINITY: ANALYSIS BY USING GIS AND DEVELOPMENT OF COUNTER MEASURES REGARDING IRRIGATION AND DRAINAGE IN BUKHARA, UZBEKISTAN
Journal Title: INTERNATIONAL ACADEMY JOURNAL "Web of Scholar" - Year 2018, Vol 4, Issue 6
Abstract
For Uzbekistan, the water management is the most important issue in sustainable agriculture. For sustainable development, agriculture of Uzbekistan has to manage salinization on watershed scale. Currently, in proper irrigation methods, accompanied by insufficient drainage, soils are often damaged due to over-saturation and accumulation of salt. Salinization is an important factor in land degradation and is largely due to the excessive use of irrigation water and affects up to 50.1% of the total irrigated area. In this research GIS Regression analysis was evaluated for the following parameters: rainfall, DEM, DEM flow accumulation, hill shade, irrigation and drainage maps were overlaid. Research methodology was applied in Bukhara province, as a case study. To develop GIS database, data was collected from different sources; categorical data (FAO), weather data, DEM data, buffer data. Survey was conducted in Bukhara province on September 2014. Understanding on salinization process, especially, topographic features by overlay analysis (OLS regression model). Results show that each parameter can suggest a hypothesis indicating influence on salinity area. In this buffer area (watershed scale) the most influence of parameter for salinization - was irrigation and drainage with OLS results and also, practically in a buffer area, it really effects to the salinization. This research will proceed to develop preventive counter measures for the analysis by GIS and will be preliminary step towards decision making for agricultural policy, such as the saline areas or identification of zones that are suitable for crop growth.
Authors and Affiliations
Aziz Omonov, Kato Tasuku
Keywords
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- EP ID EP325417
- DOI 10.31435/rsglobal_wos/12062018/5766
- Views 127
- Downloads 0
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