Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece

Irrigation and nitrate fertilization scenarios were combined and simulated for crop water irrigation demands and nitrogen applications based on experiments on crop cultivation practices. Two irrigation practices (deficit irrigation and rainfed conditions) were applied to the main crop types of the A...

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Autores principales:	Aikaterini Lyra, Athanasios Loukas, Pantelis Sidiropoulos
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	fertilization groundwater integrated water resources modelling irrigation scenarios water balance water quality Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/cb9b2722cb7340efb8207a088076adbd
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spelling	oai:doaj.org-article:cb9b2722cb7340efb8207a088076adbd2021-11-06T10:07:55ZImpacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece1606-97491607-079810.2166/ws.2021.097https://doaj.org/article/cb9b2722cb7340efb8207a088076adbd2021-09-01T00:00:00Zhttp://ws.iwaponline.com/content/21/6/2748https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Irrigation and nitrate fertilization scenarios were combined and simulated for crop water irrigation demands and nitrogen applications based on experiments on crop cultivation practices. Two irrigation practices (deficit irrigation and rainfed conditions) were applied to the main crop types of the Almyros Basin, a coastal basin located in Thessaly, Greece. The Almyros groundwater system suffers from progressive water balance deficit, nitrate contamination and seawater intrusion due to groundwater abstractions for agricultural irrigation to cover crop water demands in the dry season. The impacts of the irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality were simulated using an Integrated Modelling System consisting of models of surface hydrology (UTHBAL), groundwater hydrology (MODFLOW), crop growth/nitrate leaching (REPIC), contaminant transport (MT3DMS), and seawater intrusion (SEAWAT), for the historical period of 1991–2018. The results of the scenarios were evaluated with the indicators of Crop Water Productivity (CWP) for crop yields and irrigation water, Partial Factor Productivity (PFP) for Nitrogen Use Efficiency, and Economic Water Productivity (EWP) for the gross profits of the irrigation water. HIGHLIGHTS The study evaluates the impacts of irrigation and nitrate fertilization scenarios on groundwater resources.; The Integrated Modelling System of surface hydrology (UTHBAL), groundwater hydrology (MODFLOW), crop growth/nitrate leaching (REPIC), contaminant transport (MT3DMS), and seawater intrusion (SEAWAT) has been enriched to simulate agronomic practices.; CWP, EWP and NUE indices evaluate the performance of the scenarios.;Aikaterini LyraAthanasios LoukasPantelis SidiropoulosIWA Publishingarticlefertilizationgroundwaterintegrated water resources modellingirrigationscenarioswater balancewater qualityWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 6, Pp 2748-2759 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fertilization groundwater integrated water resources modelling irrigation scenarios water balance water quality Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	fertilization groundwater integrated water resources modelling irrigation scenarios water balance water quality Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Aikaterini Lyra Athanasios Loukas Pantelis Sidiropoulos Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece
description	Irrigation and nitrate fertilization scenarios were combined and simulated for crop water irrigation demands and nitrogen applications based on experiments on crop cultivation practices. Two irrigation practices (deficit irrigation and rainfed conditions) were applied to the main crop types of the Almyros Basin, a coastal basin located in Thessaly, Greece. The Almyros groundwater system suffers from progressive water balance deficit, nitrate contamination and seawater intrusion due to groundwater abstractions for agricultural irrigation to cover crop water demands in the dry season. The impacts of the irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality were simulated using an Integrated Modelling System consisting of models of surface hydrology (UTHBAL), groundwater hydrology (MODFLOW), crop growth/nitrate leaching (REPIC), contaminant transport (MT3DMS), and seawater intrusion (SEAWAT), for the historical period of 1991–2018. The results of the scenarios were evaluated with the indicators of Crop Water Productivity (CWP) for crop yields and irrigation water, Partial Factor Productivity (PFP) for Nitrogen Use Efficiency, and Economic Water Productivity (EWP) for the gross profits of the irrigation water. HIGHLIGHTS The study evaluates the impacts of irrigation and nitrate fertilization scenarios on groundwater resources.; The Integrated Modelling System of surface hydrology (UTHBAL), groundwater hydrology (MODFLOW), crop growth/nitrate leaching (REPIC), contaminant transport (MT3DMS), and seawater intrusion (SEAWAT) has been enriched to simulate agronomic practices.; CWP, EWP and NUE indices evaluate the performance of the scenarios.;
format	article
author	Aikaterini Lyra Athanasios Loukas Pantelis Sidiropoulos
author_facet	Aikaterini Lyra Athanasios Loukas Pantelis Sidiropoulos
author_sort	Aikaterini Lyra
title	Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece
title_short	Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece
title_full	Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece
title_fullStr	Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece
title_full_unstemmed	Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece
title_sort	impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the almyros basin, greece
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/cb9b2722cb7340efb8207a088076adbd
work_keys_str_mv	AT aikaterinilyra impactsofirrigationandnitratefertilizationscenariosongroundwaterresourcesquantityandqualityofthealmyrosbasingreece AT athanasiosloukas impactsofirrigationandnitratefertilizationscenariosongroundwaterresourcesquantityandqualityofthealmyrosbasingreece AT pantelissidiropoulos impactsofirrigationandnitratefertilizationscenariosongroundwaterresourcesquantityandqualityofthealmyrosbasingreece
_version_	1718443821160726528

Impacts of irrigation and nitrate fertilization scenarios on groundwater resources quantity and quality of the Almyros Basin, Greece

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