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001-es BibID:BIBFORM092611
Első szerző:Tamás János (környezetgazdálkodási agrármérnök)
Cím:Water Scarcity Problem Treatment Using Precision Irrigation Techniques on Tisza-river Basin / János Tamás, Bernadett Gálya, Florent Demelezi, Attila Nagy
Megjegyzések:Over the past decades, - as in other parts of the world - the variability of the climate has increased, which has also affected the Tisza River Basin (Ukraine, Romania, Slovakia, Serbia and Hungary). Most of the climate scenarios predict an increase in water scarcity in arid areas, such as Hungary. However, the trend of annual precipitation is still very uncertain in this region. The frequency of drought has already increased significantly due to the rising temperatures, and decrease precipitation in the vegetation periods. Beside water retention measures, one of the main trends in water management is precision irrigation. However, the irrigation area is 200,000 hectares in Hungary covering approximately 2% of agricultural land, mostly with outdated irrigation technology. The task of precision water management is to optimally satisfy the current demand for water in cultivation technology. It uses automated real-time data collection and evaluation systems in the observed crop systems. It continuously processes the 2-3-dimensional hydrological water balance elements in time and controls the technical equipment for water supply or drainage. In moving systems, in addition to GPS control, sprinkler irrigation systems are able to adapt to the continuous changes in soil and plant water balance. The aim of the research was to develop an alternative water source based watersaving precision sprinkler irrigation system on an arable land (85 ha), which is located in the reference area of the Tisza River Basin. During the research we developed a real-time eco-potential measurement methodology for water management by processing real-time remote sensed data series. Real-time water balance calculations were made and the irrigation water requirements were determined for different soil and plant conditions. Finally, we developed a real time correction based control technology of the linear irrigation systems, taking into account the agro-ecological properties of the cultivating area, where the amount of the supplied nutrient solution can be regulated at the nozzle level according to the user requirements (flow-level control l / s, speed and zone control). In this research, high precision soil maps and 3-D DEM are presented which were created to support establishing the water saving variable rate irrigation system by selecting and identifying sites for different agro technical implementations and precision management zones.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok előadáskivonat
Megjelenés:3rd World Irrigation Forum (WIF3): Development for Water, Food and Nutrition Security in a Competitive Environment. - p. 1-9. -
További szerzők:Gálya Bernadett (1987-) (környezetgazdálkodási agrármérnök) Demelezi Florent Nagy Attila (1982-) (környezetgazdálkodási agrármérnök)
Pályázati támogatás:EFOP-3.6.2-16-2017-00001
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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