Spate Irrigation of Barley Through Floodwater Harvesting in the Gareh-Bygone Plain, Iran

Ghahari, Gholamreza; Hashemi, Hossein; Berndtsson, Ronny

doi:10.1002/ird.1855

Cited by 17 publications

(5 citation statements)

References 27 publications

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“…In principal, assuming the artificial recharge areas are the main source of GW recharge, extending the FWS systems together by decreasing the abstraction rate 25 seems to be a prominent and affordable solution to reverse the GW decline in the future. This can be accompanied by converting a part of irrigated land into the spate irrigation farming (Ghahari et al, 2014) GW maintenance. In this case, the impact of reduced pumping would be less on the livelihood of the settlers.…”

Section: Interactive Discussionmentioning

confidence: 99%

An extended modeling approach to assess climate change impacts on groundwater recharge and adaptation in arid areas

Hashemi¹,

Uvo²,

Berndtsson³

2014

Preprint

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Abstract. The impact of future climate scenarios on surface and groundwater resources was simulated using a modeling approach for an artificial recharge area in arid southern Iran. Future climate data for the periods of 2010–2030 and 2030–2050 were acquired from the Canadian Global Coupled Model (CGCM 3.1) for scenarios A1B, A2, and B1. These scenarios were adapted to the studied region using the delta-change method. The modified version of the HBV model (Qbox) was used to simulate runoff in a flash flood prone catchment. The model was calibrated and validated for the period 2002–2011 using daily discharge data. The projected climate variables were used to simulate future runoff. The rainfall–runoff model was then coupled to a calibrated groundwater flow and recharge model (MODFLOW) to simulate future recharge and groundwater hydraulic head. The results of the rainfall–runoff modeling showed that under the B1 scenario the number of floods might increase in the area. This in turn calls for a proper management, as this is the only source of fresh water supply in the studied region. The results of the groundwater recharge modeling showed no significant difference between present and future recharge for all scenarios. Owing to that, four abstraction and recharge scenarios were assumed to simulate the groundwater level and recharged water in the studied aquifer. The results showed that the abstraction scenarios have the most substantial effect on the groundwater level and the continuation of current pumping rate would lead to a groundwater decline by 18 m up to 2050.

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Section: Interactive Discussionmentioning

confidence: 99%

An extended modeling approach to assess climate change impacts on groundwater recharge and adaptation in arid areas

Hashemi¹,

Uvo²,

Berndtsson³

2014

Preprint

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“…Thus, floodwater harvesting is a good solution for reducing flood risk and water scarcity in arid and semi-arid regions [2]. We can say that floodwater is the main source of surface water and groundwater for many arid and semi-arid regions [3] because it is needed to control and manage floodwater for later use. Besides the washing of agricultural land, soil erosion, and floods also contaminate drinking water sources by collapsing wells or leaking the pipes of the water supply system [4].…”

Section: Open Accessmentioning

confidence: 99%

Floodwater harvesting of the Arghastan River basin of Kandahar in Afghanistan

Hejran

2023

J. Mech. Constr. Eng.

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Climate change and population growth are the important factors that place additional pressures on water resources, and generally, predictions indicate that these pressures are increasing continuously, so it is necessary to regulate surface water sources. Afghanistan has a semiarid climate and already received worse effects of climate change; therefore, there is an extremely needed regulation of river flow across the country. Arghastan River is in the southernwest parts of the country, thousands of cubic kilometers of water in this river are wasted annually, and drought and floods are the main problems of the residents due to nonmanagement of river flow. The main objective of the study conducted by GIS was to find a dam site along the river for proper water management. A contour map was created for the entire watershed by using 5-meter DEM, that the most suitable site for the dam is at the coordinate of 66°48'34.468"E 31°35'4.512"N, it is possible to build up to 170-meter-high dam. The purpose site of the reservoir has the capacity to store about 1700 million cubic meters of water at an elevation of 170 meters, while the average monthly discharge of the Arghastan River up to the specific point of the investigation is about 38.6 m3/s. Suppose the floodwater of this River basin is harvested. In that case, it will provide the chance for residents to rescue their property from flood hazards during the rainy season, and they will have enough water for irrigation purposes during the summer season.

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“…For modeling FWS suitability in this research, first, data on the current established FWS system, the Jamab system, were gathered [37]. Then, we defined the best locations for FWS establishment in the study area by considering the national guidelines and published documents [9,10,13,43]. To model FWS suitability, the main conditioning factors were used.…”

Section: Floodwater Spreading Datasetmentioning

confidence: 99%

Groundwater Augmentation through the Site Selection of Floodwater Spreading Using a Data Mining Approach (Case study: Mashhad Plain, Iran)

Naghibi

Vafakhah

Hashemi

et al. 2018

Water

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It is a well-known fact that sustainable development goals are difficult to achieve without a proper water resources management strategy. This study tries to implement some state-of-the-art statistical and data mining models i.e., weights-of-evidence (WoE), boosted regression trees (BRT), and classification and regression tree (CART) to identify suitable areas for artificial recharge through floodwater spreading (FWS). At first, suitable areas for the FWS project were identified in a basin in north-eastern Iran based on the national guidelines and a literature survey. Using the same methodology, an identical number of FWS unsuitable areas were also determined. Afterward, a set of different FWS conditioning factors were selected for modeling FWS suitability. The models were applied using 70% of the suitable and unsuitable locations and validated with the rest of the input data (i.e., 30%). Finally, a receiver operating characteristics (ROC) curve was plotted to compare the produced FWS suitability maps. The findings depicted acceptable performance of the BRT, CART, and WoE for FWS suitability mapping with an area under the ROC curves of 92, 87.5, and 81.6%, respectively. Among the considered variables, transmissivity, distance from rivers, aquifer thickness, and electrical conductivity were determined as the most important contributors in the modeling. FWS suitability maps produced by the proposed method in this study could be used as a guideline for water resource managers to control flood damage and obtain new sources of groundwater. This methodology could be easily replicated to produce FWS suitability maps in other regions with similar hydrogeological conditions.

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Spate Irrigation of Barley Through Floodwater Harvesting in the Gareh-Bygone Plain, Iran

Cited by 17 publications

References 27 publications

An extended modeling approach to assess climate change impacts on groundwater recharge and adaptation in arid areas

An extended modeling approach to assess climate change impacts on groundwater recharge and adaptation in arid areas

Floodwater harvesting of the Arghastan River basin of Kandahar in Afghanistan

Groundwater Augmentation through the Site Selection of Floodwater Spreading Using a Data Mining Approach (Case study: Mashhad Plain, Iran)

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