Abstract
In the Republic, especially in the Syrdarya region, the reclamation state of irrigated lands and soil salinization is inextricably linked with the level of groundwater, their salinity, and movement. The level of groundwater and its salinity depends largely on the technical condition of the drainage networks and the amount of atmospheric precipitation, the supply of fresh water during the vegetation period, and groundwater movement from outside. The future of using GIS in a different sphere is discussed. GIS gives possibilities to collect the data, renewing it, or use new information in the analysis. It requires a quick change of GIS information about Earth because procedures in the Earth are dynamically changeable. Periodically changing information in GIS gives us the possibility to get new information and analyze it. GIS technologies and techniques started using widely in all spheres of humanity. It is important to know its properties. The main and effective method of land reclamation is the construction of collector-drainage systems and the maintenance of groundwater level, preventing secondary salinization of land by irrigation and drainage water. GIS is currently widely used and implemented in agriculture and water management and land reclamation monitoring in Uzbekistan and all over the world. Data analysis and transmission and storage within the GIS are addressed in GIS.
Highlights
Development of Geographic Information System (GIS), the occurrence of salinization and waterlogging, crop extinction in the agricultural field, for a stable and high yield from agricultural crops, there must be an optimal combination of all the essential factors to the life of the plant
Many models are created in GIS that are successfully used in water management of different countries of the world
The weighting of thematic layers was done by pair-wise comparison even as modeling was done using a weighted overlay technique in a GIS environment
Summary
Development of Geographic Information System (GIS), the occurrence of salinization and waterlogging, crop extinction in the agricultural field, for a stable and high yield from agricultural crops, there must be an optimal combination of all the essential factors to the life of the plant. Fortes et al (2005) inserted the existing irrigation scheduling simulation model ISAREG (this model calculates the waste water amount of the area by inserting natural and climatic factors) into GIS and created a GISAREG model based on the GIS mentioned above. This model predicted the quality of utilizing the Syr Darya basin water in different climatic scenarios. Creating this model in GIS eases the labour (Fortes, Platonov, and Pereira, 2005). Over 30 countries are implementing this model for water resource control [6,7]
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