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31-38 K. Drastig, S. Kraatz, J. Libra, A. Prochnow and U. Hunstock
Implementation of hydrological processes and agricultural management options into the ATB-Modeling Database to improve the water productivity at farm scale
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Implementation of hydrological processes and agricultural management options into the ATB-Modeling Database to improve the water productivity at farm scale

K. Drastig¹*, S. Kraatz¹, J. Libra¹, A. Prochnow¹⋅² and U. Hunstock³

¹Leibniz-Institute for Agricultural Engineering Potsdam-Bornim, Younginvestigators group ‘AgroHyd’, Department 2 ‘Technology-Assessment andSubstance Cycles’, Max-Eyth-Allee 100, 14469 Potsdam, Germany;
*Correspondence: kdrastig@atb-potsdam.de
²Humboldt-University of Berlin, Faculty of Agriculture and Horticulture, ChairUtilization Strategies for Bioresources, Hinter der Reinhardtstr. 8–18, 10115Berlin, Germany3runlevel3 GmbH, Kastanienallee 94, 10435 Berlin, Germany

Abstract:

To meet the food demands of a growing world population, the productivity ofagricultural water use for food production at farm scale, must be increased. A modelingdatabase has been developed to quantify water use, i.e. the use of precipitation, soil water andirrigation water at the farm scale, and to calculate water-use indicators based on farm operatingdata. These indicators can be used to assess agronomic measures for their merit in improvingthe productive use of water in different agricultural operation systems. The benefit of the ATBModeling Database lies within its speed and inherent flexibility which allows further water-related indicators, management options and water-related processes in different regions andfarm systems to be easily implemented. The description of the ATB Modeling Databasedemonstrates the development of a new solution to handle comprehensive farm and regionaldata, providing a tool to explore possibilities to enhance the productivity of water use indifferent farming systems.Key words: agricultural management options, ATB Modeling Database, data at farm scale,farm-scale, indicators, water productivity.ABBREVIATIONSET0 [mm]: potential evapotranspiration of a grass reference surface;ETc [mm]: potential crop evapotranspiration;ETc,act [mm]: actual crop evapotranspiration;Tc [mm]: potential crop transpiration;Tc,act [mm]: actual crop transpiration.INTRODUCTIONTo meet the future food demands of a growing world population, increases inagricultural productivity over the current level will be necessary. A more productivewater management for securing high water productivity and minimising water losses isone strategy to reduce negative impacts on water quantity in many places (e.g. Gordon31

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