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001-es BibID:BIBFORM090107
Első szerző:Demelezi Florent
Cím:Evaluation of soil water management properties based on LiDAR data and soil analyses at farm level / Demelezi Florent, Galya Bernadett, Tamas Janos, Demelezi Imri, Nagy Attila
Dátum:2019
ISSN:2066-6276 2601-5676
Megjegyzések:Rapid weather fluctuations with an increasing demand for resource use impacts crop production sustainability leading to severe use of land and water resources. Laboratory analysis and technological improvements, such as remote sensing, generate new information and knowledge, to ease the visibility of effects by agricultural practices, bringing new opportunities to better use resources and improve farming sustainability and water management practices. Irrigation use and assessment are important to assure the sustainability; planning and modelling based on soil-plant economy relationship by the use of technological innovation, as Lidar imagery, enhancing the precision to large scale knowledge gained a plot-farm level. Agronomics, agriculture engineers, management technologies aim to reduce non-productive water use in agriculture. Finding the correlation between soil water retention and physical parameters contributes to irrigation management plant, therefore, reducing water use, cutting costs for agri-food production and reducing environmental impact. Soil sampling is performed in two depth and analysis of soil physical and water retention parameters with the correlation of LiDAR survey proving in-depth on-field information. Silt-loamy texture makes a good texture, water retention capacity. A decrease of silt content in the upper layer (6.4 %), an increase of sand and clay (7 % and 28 %) respectively. Conventional soil cultivation made an impact on the soil upper layer. Soil water retention did not show the major fluctuation of two layers regarding pF values. LiDAR results shown the area is not susceptible to erosion, 68 % is in the 1 st slope category and 28 % in the 2 nd. LiDAR, clear understanding and visualisation of site laboratory data for different. The field is well drained, vegetation period and cultivation could require scheduled, separated irrigation on land based on DEM and runoff lines helping to improve irrigation planning and water use efficiency. Demonstration the benefits of using high accuracy remote sensing LiDAR data, preventing water logging, misuse, and improve irrigation management and shows good examples to use in large scale to ease comprehensive understating of data.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Natural Resources and Sustainable Development. - 9 : 2 (2019), p. 160-173. -
További szerzők:Gálya Bernadett (1987-) (környezetgazdálkodási agrármérnök) Tamás János (1959-) (környezetgazdálkodási agrármérnök) Demelezi Imri Nagy Attila (1982-) (környezetgazdálkodási agrármérnök)
Pályázati támogatás:EFOP-3.6.2-16-2017-00001
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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
Dátum:2019
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.
ISBN:978-81-89610-27-2
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok előadáskivonat
könyvrészlet
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
EFOP
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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