Water footprint of horticultural plants grown in the Brazilian semiarid
DOI:
https://doi.org/10.6008/CBPC2179-6858.2019.004.0005Keywords:
Evapotranspiration, Productivity, Cropwat modelAbstract
The current water crisis is related to several anthropogenic actions on the planet, including the overuse of water in the agricultural sector. The Water Footprint (PH) is an indicator of the appropriation of water resources that quantifies the direct and indirect use of this resource, aiming to subsidize the establishment of policies and concrete actions for water saving. The objective of this research is to determine the water footprints of tomato (Solanum lycopersicum), onion (Allium cepa), beans (Phaseolus vulgaris), lettuce (Lactuca sativa L.) and coriander (Coriandrum sativum) crops. The experimental part of the study was carried out at the Experimental Agrometeorological Station (EstAgro - DCA of the Federal University of Campina Grande) and the pH of each crop was determined based on the crop evapotranspiration determined by the soil water balance method and Cropwat software. Reference evapotranspiration (ETo) was determined based on the Penman-Monteith method. The results of this work allow us to conclude that leafy vegetables have a high component of gray PH compared to green and blue components of the crop. Blue and green water footprints increase with increasing irrigation and rainfall, but the gray water footprint varies only as a function of productivity.
Downloads
Downloads
Published
Issue
Section
License
The CBPC - Companhia Brasileira de Produção Científica (Brazil CNPJ: 11.221.422/0001-03) the material rights of the published works. The rights relate to the publication of the work anywhere in the world, including rights to renewals, expansions and dissemination of the contribution, as well as other subsidiary rights. All electronically published works may subsequently be published in printed collections under the coordination of this company and / or its partners. The authors preserve the copyright, but are not allowed to publish the contribution in another medium, printed or digital, in Portuguese or in translation.