BALANÇO HÍDRICO E CONSUMO DE ÁGUA EM SISTEMA COLETIVO DE IRRIGAÇÃO PARA A CULTURA DO ARROZ IRRIGADO
Keywords:
irrigação, rizicultura; eficiência, gestão de águaAbstract
The irrigated rice crop has great economic and social importance for the southern region of Santa Catarina. The predominant cultivation system is continuous irrigation with planting in the pre-germinated system, which is characterized by high water consumption. The Araranguá River Basin is characterized by water use conflicts, aggravated by the degradation of water resources due to coal mining. For the Management of Water Resources it is important to know the consumption of water used in irrigation. The objective of this work was to evaluate the water consumption and carry out the water balance of the area irrigated by the Santo Isidoro Drainage and Irrigation Association (ADISI). The irrigated area is 3036 ha, covering 270 properties. The input and output flows of the irrigation system for the 2019/20, 2020/2021 and 2021/22 harvests were monitored. Water consumption during the months of August to January was respectively 7520, 8962 and 8048 m³ ha-1 with an average of 8254 m³ ha-1. The system flow is limited to 0.66 Ls-1ha-1, with an average flow in the period of 0.58 Ls-1 ha-1 and the irrigation efficiency was 1.12 kg of rice for each m³ of water used in irrigation. Precipitation makes an important contribution to meeting water demand.
Downloads
Published
Issue
Section
License
Copyright (c) 2023 Revista de Gestão de Água da América Latina (Water Management Journal in Latin America)
This work is licensed under a Creative Commons Attribution 4.0 International License.
When sending the manuscript, notice that:
To be responsible for the other authors, when applicable, as co-responsible for the technical and scientific content of the article according to Article 5 of Brazilian Law N. 9610, regarding Copyright.
All statements published in the manuscript are the sole responsibility of the authors. However, all published material becomes the property of REGA, which reserves the copyright. Therefore, no material published in REGA may be reproduced without the written permission of REGA. All authors of articles submitted to REGA must sign a Copyright Transfer Agreement, which will take effect from the date of acceptance of the article. This term will be requested by REGA prior to the publication of the article. The author responsible for the article will receive, free of charge, the electronic record of the publication (in PDF format).
All articles published open access will be immediately and permanently free for everyone to read, download, copy and distribute. Permitted reuse is defined by your choice of one of the following user licenses:
Creative Commons Attribution (CC BY): lets others distribute and copy the article, to create extracts, abstracts, and other revised versions, adaptations or derivative works of or from an article (such as a translation), to include in a collective work (such as an anthology), to text or data mine the article, even for commercial purposes, as long as they credit the author(s), do not represent the author as endorsing their adaptation of the article, and do not modify the article in such a way as to damage the author’s honor or reputation.
Author Rights
For open access publishing this journal uses an exclusive licensing agreement. Authors will retain copyright alongside scholarly usage rights and REGA will be granted publishing and distribution rights.
Author Self-Archiving Policy
This journal permits and encourages authors to post items submitted to the journal on personal websites and institutional or funder repositories after publication. The final published PDF version should be used and bibliographic details that credit the publication in this journal should be included.
