The Influence of on- And Off-Farm Surface Water Investment on Groundwater Extraction From an Agricultural Landscape

Kovacs, Kent; Durand‐Morat, Alvaro

doi:10.1017/aae.2016.39

Cited by 7 publications

(5 citation statements)

References 14 publications

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“…It is observed that just by applying harvesting technology to 1% of the available roads in the area the variety of the crop pattern can be increased significantly. This observation is in line with the conclusions highlighted by Kovacs et al [2017] regarding the relationship between the increases in irrigation-intensive crops and groundwater need. Benefits of using additional potentials such as rainwater harvesting might become more obvious when the requirements of the other water consumers are integrated into the model with additional variables and constraints.…”

Section: Discussionsupporting

confidence: 91%

Robust Planning of Irrigation Considering Water Consumption and Revenue

Turgut

2024

Preprint

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Water scarcity is a problem for many regions which requires immediate action and solutions cannot be postponed for a long time. It is known that farming consumes a significant portion of usable water. In this study, a decision support model of bi-objective stochastic linear formulation is proposed. The model is generating annual planting plans together with water consumption projections for each farmer in the region while taking revenue of the overall harvest into account. The structure of the proposed model maintains robustness against the volatilities in precipitation, yield, and market price. The inherent trade-off between water consumption and revenue lends itself to multi-objective planning. This is a perspective especially useful for regional administrations to plan next year's crop pattern together with agricultural incomes and irrigation expenses. Furthermore, it is also shown that how the model can be used to investigate the potential of rainwater harvesting or switching to water-efficient irrigation methodologies. The decision support model is especially unique in the sense that it can generate a set of Pareto optimum solutions as opposed to a single objective counterpart. This property is helpful in terms of not only providing a broader perspective to evaluate and project the possibilities but also increasing the applicability of the results by providing flexible design framework.

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Section: Discussionsupporting

confidence: 91%

Robust Planning of Irrigation Considering Water Consumption and Revenue

Turgut

2024

Preprint

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“…The magnesium adsorption ratio (MAR), also known as the magnesium hazard (MH), was calculated as follows: (5) Lastly, Kelley's ratio (KR) [24] is described as follows: (6) All ionic concentrations are in the milli equivalent per liter (meq/L). All these parameters and individual chemical parameters had been compared with national and international standards in order to assess the groundwater suitability.…”

Section: Discussionmentioning

confidence: 99%

“…The interaction between the two affects the chemical components of the water and records the formation, transformation, and migration of water bodies under the action of human activities to a certain degree [1][2][3][4]. The mutual conversion of surface water and groundwater is a hotspot of research in the field of terrestrial water circulation and water resources [5][6][7]. Understanding the interaction between surface water and groundwater is critical for the management of water resources [8] and analysis of ecohydrology [9].…”

Section: Introductionmentioning

confidence: 99%

“…The impact factor was the potassium and permanganate index, and occasionally mercury exceeded the standard. The water quality for the monitoring section of Zhenjiangkou and Songhuajiang Village has reached Grade V. The over-standard items were the chemical oxygen demand, ammonia nitrogen, BOD 5 , petroleum, and so forth. The water quality of the Yinma River has been evaluated as Grade V. The major pollutants were chemical requirements, volatile phenols, and oils [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Hydrochemistry Characteristics and Water Quality Assessment for Irrigation along the Second Songhua River in the South of the Songnen Plain, Northeast China

Sun¹,

Bian²,

Zhang³

et al. 2019

Pol. J. Environ. Stud.

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In view of changes in the water environment in Songnen Plain and water quality problems in recent years, the Second Songhua River Basin was used as our research object. To conduct the water environment investigations, 11 surface water samples and 76 shallow groundwater samples were collected. Multiple methods, such as isotope hydrological analysis, principal component analysis, and irrigation water quality parameter (SSP, SAR, RSC, MAR, KR) analysis were used to systematically apply water chemistry analysis and its evolutionary process, and water quality evaluation for irrigation. The results showed that Ca 2+ and HCO 3 were the main ions in the water body. The regional groundwater was recharged by atmospheric precipitation, and the surface water received both atmospheric precipitation and groundwater recharge. The hydrogeological process included the weathering and dissolution of carbonates, and the ion exchange reaction. In addition, the major reaction of local groundwater was the weathering and dissolution of silicate. Water quality was affected by agricultural fertilizer and domestic sewage. The water downstream of the basin, if used for irrigation, might accelerate the formation of alkaline and saline soil, neither of which help crop growth. The water upstream of the watershed in the region was suitable for irrigation.Keywords: chemical information of water, statistical analysis, isotope hydrology, assessment of irrigation water *

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“…The lack of information about the value of water within an aquifer is a concern of the most recent inclusive wealth report (United Nations, 2018). Earlier work in the region measures the physical quantities of groundwater stocks without values (ANRC, 2018) or measures the agricultural income from groundwater use but does not quantify the value of water in the aquifer (Kovacs & Durand‐Morat, 2017). Both approaches come short of revealing the accounting price of groundwater stock, which again is the social worth of an additional unit of water in the aquifer.…”

Section: Introductionmentioning

confidence: 99%

The influence of lateral flows in an aquifer on the agricultural value of groundwater

Kovacs¹,

Durand‐Morat²

2020

Natural Resource Modeling

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Valuation of water in an aquifer depends on reliable information about the hydrologic conditions of an aquifer. Regions of depression emerge in an aquifer because groundwater cannot seamlessly flow between shallow and deep aquifer locations, and our analysis shows that the degree of lateral flow influences the value of the water in the aquifer. The assumption that groundwater declines uniformly over a landscape, a bathtub aquifer, leads to an underestimate of the value of a unit of water in an aquifer but an overestimate of the wealth that the aquifer represents. For the alluvial aquifer in Arkansas, USA, the average accounting price of water in an aquifer is almost 40% higher if there is no lateral flow, but the groundwater wealth is 10% lower.The value of an aquifer with the limited lateral flow is less sensitive to changes in agricultural markets, the discount rate, or the natural recharge of the aquifer. Recommendations for Resource Managers• Average value of water in an aquifer with limited lateral flows is nearly 40% higher than the value of an aquifer with high lateral flows.• Groundwater wealth weights the accounting prices of water in the aquifer by the amount water underneath each site. As lateral flows decline, the wealth of the aquifer rises and then falls because the distribution of accounting prices change so most water is beneath sites with lower accounting prices.• The average value of water in an aquifer is less sensitive to changes in hydro-economic model parameters such as the natural recharge or discount rate when the lateral flows are less.

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The Influence of on- And Off-Farm Surface Water Investment on Groundwater Extraction From an Agricultural Landscape

Cited by 7 publications

References 14 publications

Robust Planning of Irrigation Considering Water Consumption and Revenue

Robust Planning of Irrigation Considering Water Consumption and Revenue

Hydrochemistry Characteristics and Water Quality Assessment for Irrigation along the Second Songhua River in the South of the Songnen Plain, Northeast China

The influence of lateral flows in an aquifer on the agricultural value of groundwater

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