Implementation of Dpsir Framework in the Management of the Almyros Basin, Magnesia Prefecture

Lyra, Aikaterini; Pliakas, F.; Skias, Stylianos G.; Gkiougkis, Ioannis

doi:10.12681/bgsg.11789

Cited by 2 publications

(5 citation statements)

References 4 publications

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“…The aquifer covers the lowest and coastal part of the basin and has an area of 293 km 2 with about 71% of its extent area to be in planar and 29% in hilly terrain. The Almyros basin area is delineated by the Chalkodonion or Mavrovouni mountains in the north and the Othrys Mountain of the Pindus Mountain Range in the west, while the coastline forms the eastern boundary of the Pagasitikos Gulf [82].…”

Section: Study Areamentioning

confidence: 99%

“…The monthly mean temperature varies from the mean annual temperature by 3 of its extent area to be in planar and 29% in hilly terrain. The Almyros basin area is delineated by the Chalkodonion or Mavrovouni mountains in the north and the Othrys Mountain of the Pindus Mountain Range in the west, while the coastline forms the eastern boundary of the Pagasitikos Gulf [82]. The climate of the basin is semi-arid Mediterranean climate with hot and dry summers and cold and wet winters.…”

Section: Study Areamentioning

confidence: 99%

“…Clay layers and the intercalations of clay, sand, gravel with volcanic rocks and conglomerates, form low permeability structures in the western area and higher elevation areas of the basin. In the southern part of the basin, small areas of limestone form kasts, which are direct communication with the sea [82]. The geological and hydrogeological setting of the study area and the relative data are presented in the Section 3.2.4 of the paper and in Figure 3.…”

Section: Study Areamentioning

confidence: 99%

“…In the western and high elevation areas of the basin and the aquifer, the presence of a low permeability clay layers and the intercalations of clay, sand, gravel with volcanic rocks and conglomerates, form low permeability structures within the granular aquifer. Limestone is present at small areas of the southern part of the basin and the aquifer area, forms karsts, which are in direct communication with the sea and do not interact with the aquifer [82]. No significant hydraulic communication has been observed and documented for the northern, western, and southern part of the aquifer with the neighbouring aquifer systems.…”

Section: Geology and Hydrogeological Setting And Datamentioning

confidence: 99%

“…The measurements span from 1991 to 2015. Additional nitrates concentrations measurements and chloride observation measurements for the period of 2013 to 2015 were performed in the Almyros aquifer, in a previous research study [82]. The locations of water table observation wells are illustrated in Figure 4a.…”

Section: Observation Data Of Water Table Nitrate Concentrations and Chloride Concentrationsmentioning

confidence: 99%

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An Integrated Modeling System for the Evaluation of Water Resources in Coastal Agricultural Watersheds: Application in Almyros Basin, Thessaly, Greece

Lyra

Λουκάς

Sidiropoulos

et al. 2021

Water

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This study presents an integrated modeling system for the evaluation of the quantity and quality of water resources of coastal agricultural watersheds. The modeling system consists of coupled and interrelated models, including (i) a surface hydrology model (UTHBAL), (ii) a groundwater hydrology model (MODFLOW), (iii) a crop growth/nitrate leaching model (REPIC, an R-ArcGIS-based EPIC model), (iv) a groundwater contaminant transport model (MT3DMS), and (v) a groundwater seawater intrusion model (SEAWAT). The efficacy of the modeling system to simulate the quantity and quality of water resources has been applied to the Almyros basin in Thessaly, Greece. It is a coastal agricultural basin with irrigated and intensified agriculture facing serious groundwater problems, such as groundwater depletion, nitrate pollution, and seawater intrusion. Irrigation demands were estimated for the main crops cultivated in the area, based on precipitation and temperature from regional weather stations. The models have been calibrated and validated against time-series of observed crop yields, groundwater table observations, and observed concentrations of nitrates and chlorides. The results indicate that the modeling system simulates the water resources quantity and quality with increased accuracy. The proposed modeling system could be used as a tool for the simulation of water resources management and climate change scenarios.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Geology and Hydrogeological Setting And Datamentioning

confidence: 99%

Section: Observation Data Of Water Table Nitrate Concentrations and Chloride Concentrationsmentioning

confidence: 99%

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An Integrated Modeling System for the Evaluation of Water Resources in Coastal Agricultural Watersheds: Application in Almyros Basin, Thessaly, Greece

Lyra

Λουκάς

Sidiropoulos

et al. 2021

Water

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Integrated Modeling of Agronomic and Water Resources Management Scenarios in a Degraded Coastal Watershed (Almyros Basin, Magnesia, Greece)

Lyra

Λουκάς

Sidiropoulos

et al. 2022

Water

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The scope of this study is to assess the effects of agronomic and water resources management scenarios on groundwater balance, seawater intrusion, and nitrate pollution and the comparison of the developed scenarios relative to the current crop production and water management regime in the coastal agricultural Almyros basin in the Thessaly region, Greece. Agronomic and water resources scenarios have been simulated and analyzed for a period of 28 years, from 1991 to 2018. The analysis has been conducted with the use of an Integrated Modeling System for agricultural coastal watersheds, which consists of coupled and interlinked simulation models of surface water hydrology (UTHBAL), reservoir operation (UTHRL), agronomic/nitrate leaching model (REPIC), and groundwater models for the simulation of groundwater flow (MODFLOW) and contaminant transport of nitrates (MT3DMS) and chlorides (SEAWAT). The pressure on water resources has been estimated with the Water Exploitation Index (WEI+) and the reservoirs’ operation with the Reliability index to cover the water demands. The indices of Crop Water Productivity, Nitrogen Use Efficiency, and Economic Water Productivity have been used to quantify the benefits and the feasibility of the alternative scenarios. The best results for the sustainability of water resources are achieved under the deficit irrigation and rain-fed scenario, while the best results for water resources and the local economy are achieved under deficit irrigation and reduced fertilization scenario.

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Implementation of Dpsir Framework in the Management of the Almyros Basin, Magnesia Prefecture

Abstract: In this paper, the implementation of the framework DPSIR is presented in the coastal

Cited by 2 publications

References 4 publications

An Integrated Modeling System for the Evaluation of Water Resources in Coastal Agricultural Watersheds: Application in Almyros Basin, Thessaly, Greece

An Integrated Modeling System for the Evaluation of Water Resources in Coastal Agricultural Watersheds: Application in Almyros Basin, Thessaly, Greece

Integrated Modeling of Agronomic and Water Resources Management Scenarios in a Degraded Coastal Watershed (Almyros Basin, Magnesia, Greece)

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