Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use
The research aims to investigate the spatiotemporal changes of water balance components and distinguish the relative impacts of climatic data and land-use on groundwater level in northeastern Iran. This investigation employs the WetSpass-M model to estimate water balance and the Mann-Kendall test al...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2024-02-01
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| Series: | Water Supply |
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| Online Access: | http://ws.iwaponline.com/content/24/2/397 |
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| author | Mahdi Zarei Reza Ghazavi Khodayar Abdollahi Roberto Ranzi Ramesh S. V. Teegavarapu Stefano Barontini |
| author_facet | Mahdi Zarei Reza Ghazavi Khodayar Abdollahi Roberto Ranzi Ramesh S. V. Teegavarapu Stefano Barontini |
| author_sort | Mahdi Zarei |
| collection | DOAJ |
| description | The research aims to investigate the spatiotemporal changes of water balance components and distinguish the relative impacts of climatic data and land-use on groundwater level in northeastern Iran. This investigation employs the WetSpass-M model to estimate water balance and the Mann-Kendall test alongside Sen's slope estimator to evaluate trend. The study also assesses mean annual water balance components, considering diverse combinations of land-use and soil. The findings offer a hydrological insight, revealing that 14% of precipitation results in runoff, 29% of that recharging the aquifer; the remaining portion is lost through evapotranspiration. The trends in precipitation and simulated water components are not significant but a significant downward trend in groundwater is observed beyond a specific point in time. Based on this outcome, as well as the analysis of land-use changes, it was speculated that human activities in this fast-developing region might be implicated in the decline in groundwater levels. Analysis of water balance components in various soil and land-use combinations indicates that evapotranspiration exhibits greater variability within the land-cover class, while recharge is more influenced by soil texture. These findings enhance our understanding for identifying potential sites for artificial recharge and determining sustainable groundwater withdrawals based on spatiotemporal recharge patterns.
HIGHLIGHTS
Groundwater recharge has a higher portion of precipitation than runoff in this arid region which is consistent with some studies in other countries.;
Groundwater level reduction in the study area is more relative to anthropogenic activities than climate.;
Evapotranspiration is more influenced by land use than soil texture.;
Groundwater recharge is more variable within soil texture than within land use.; |
| first_indexed | 2024-04-24T07:34:57Z |
| format | Article |
| id | doaj.art-3f3b8ca3a555475580b1eef2ef413ad3 |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-04-24T07:34:57Z |
| publishDate | 2024-02-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-3f3b8ca3a555475580b1eef2ef413ad32024-04-20T06:38:41ZengIWA PublishingWater Supply1606-97491607-07982024-02-0124239741510.2166/ws.2024.018018Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land useMahdi Zarei0Reza Ghazavi1Khodayar Abdollahi2Roberto Ranzi3Ramesh S. V. Teegavarapu4Stefano Barontini5 Research Center of Social Studies & Geographical Sciences, Hakim Sabzevari University, Sabzevar, Iran Department of Watershed Management, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Iran Faculty of Earth Sciences, Shahrekord University & Board member of Iranian Association of Hydrology, Shahrekord, Iran Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Brescia, Italy Department of Civil Environmental and Geomatic Engineering, Florida Atlantic University, Florida, USA Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, Brescia, Italy The research aims to investigate the spatiotemporal changes of water balance components and distinguish the relative impacts of climatic data and land-use on groundwater level in northeastern Iran. This investigation employs the WetSpass-M model to estimate water balance and the Mann-Kendall test alongside Sen's slope estimator to evaluate trend. The study also assesses mean annual water balance components, considering diverse combinations of land-use and soil. The findings offer a hydrological insight, revealing that 14% of precipitation results in runoff, 29% of that recharging the aquifer; the remaining portion is lost through evapotranspiration. The trends in precipitation and simulated water components are not significant but a significant downward trend in groundwater is observed beyond a specific point in time. Based on this outcome, as well as the analysis of land-use changes, it was speculated that human activities in this fast-developing region might be implicated in the decline in groundwater levels. Analysis of water balance components in various soil and land-use combinations indicates that evapotranspiration exhibits greater variability within the land-cover class, while recharge is more influenced by soil texture. These findings enhance our understanding for identifying potential sites for artificial recharge and determining sustainable groundwater withdrawals based on spatiotemporal recharge patterns. HIGHLIGHTS Groundwater recharge has a higher portion of precipitation than runoff in this arid region which is consistent with some studies in other countries.; Groundwater level reduction in the study area is more relative to anthropogenic activities than climate.; Evapotranspiration is more influenced by land use than soil texture.; Groundwater recharge is more variable within soil texture than within land use.;http://ws.iwaponline.com/content/24/2/397groundwater rechargeiranmashhad basinsurface runoffwater balancewetspass-m model |
| spellingShingle | Mahdi Zarei Reza Ghazavi Khodayar Abdollahi Roberto Ranzi Ramesh S. V. Teegavarapu Stefano Barontini Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use Water Supply groundwater recharge iran mashhad basin surface runoff water balance wetspass-m model |
| title | Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use |
| title_full | Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use |
| title_fullStr | Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use |
| title_full_unstemmed | Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use |
| title_short | Spatiotemporal variation of water balance components in Mashhad catchment, Iran: Investigating the impact of changes in climatic data and land use |
| title_sort | spatiotemporal variation of water balance components in mashhad catchment iran investigating the impact of changes in climatic data and land use |
| topic | groundwater recharge iran mashhad basin surface runoff water balance wetspass-m model |
| url | http://ws.iwaponline.com/content/24/2/397 |
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