Consideration of Climate Variability and Change in Agricultural Water Resources Planning

Brumbelow, Kelly; Georgakakos, Aris P.

doi:10.1061/(asce)0733-9496(2007)133:3(275)

Cited by 25 publications

(19 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These changes, in turn, may significantly affect demand for irrigation water, as well as water availability, via changes to soil and surface water balances based on evapotranspiration, effective precipitation, and surface runoff [3,4]. For these reasons, it is important to estimate quantitatively the anticipated effects of climate change on irrigation water requirements [5]. Previous work has reported significant changes in precipitation and temperature that may be associated with impacts to irrigation water demand in the past, present, and future on global and regional scales [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Regional Climate Change Impacts on Irrigation Vulnerable Season Shifts in Agricultural Water Availability for South Korea

Nam

Kim

Hong

et al. 2017

Water

View full text Add to dashboard Cite

Abstract:Reservoirs are principal water resources that supply irrigation water to paddy fields and play an important role in water resources management in South Korea. For optimal irrigation reservoir operation and management, it is necessary to determine the duration of irrigation water shortages. Management of reservoir operation and irrigation scheduling should take into consideration essential variables that include the water supply in a reservoir and the water demand in the associated irrigation district. The agricultural water supply and demand show different patterns based on the variability and uncertainty of meteorological and hydrological phenomena. The duration of excessive water supply can be quantitatively determined through analysis of deviations and changes in the timing of agricultural water supply and demand. In this study, we introduce an approach to assess the vulnerable seasons of paddy irrigation to enable more effective operation and management of reservoirs. The vulnerable seasons were evaluated through comparison of the potential water supply capacity and irrigation water requirements based on water budget analysis via a time series change analysis. We have assessed the changing in the total duration and duration shifts of the vulnerable irrigation seasons for four agricultural reservoirs using past observed data from meteorological stations maintained by the Korea Meteorological Administration (KMA) and projected climate change scenarios (2011-2100) as depicted by the Representative Concentration Pathways (RCPs) emission scenarios. For irrigation vulnerable seasons under both the RCP 4.5 and RCP 8.5 scenarios, the results showed periods of significant increases in which total vulnerable seasons compared to the historical period; the longest duration of vulnerability occurred during the 2071-2100 period under the RCP 8.5. Identification of the vulnerable seasons for paddy irrigation can be applied in agricultural water management to more effectively manage reservoir operation during irrigation periods with climate changes.

show abstract

Section: Introductionmentioning

confidence: 99%

Regional Climate Change Impacts on Irrigation Vulnerable Season Shifts in Agricultural Water Availability for South Korea

Nam

Kim

Hong

et al. 2017

Water

View full text Add to dashboard Cite

show abstract

“…Recent studies, e.g. (Semenov, 2007;Brumbelow and Georgakakos, 2007), try to analyze possible impacts of climate variability and climate change on agriculture, based on process-based simulation models.…”

Section: Introductionmentioning

confidence: 99%

“…Only, a few papers (Brumbelow and Georgakakos, 2007;Schütze and Schmitz, 2010) focus on irrigation management under limited water availability which requires a deficit irrigation strategy with the target to achieve water productivity (WP) rather than maximum yield. The improvement of WP needs a good quantitative understanding of the relationship between irrigation practices and grain yield, i.e.…”

Section: Introductionmentioning

confidence: 99%

Integrated management of water resources demand and supply in irrigated agriculture from plot to regional scale

Schütze

Wagner

2016

Proc. IAHS

View full text Add to dashboard Cite

Abstract. Growing water scarcity in agriculture is an increasing problem in future in many regions of the world. Recent trends of weather extremes in Saxony, Germany also enhance drought risks for agricultural production.In addition, signals of longer and more intense drought conditions during the vegetation period can be found in future regional climate scenarios for Saxony. However, those climate predictions are associated with high uncertainty and therefore, e.g. stochastic methods are required to analyze the impact of changing climate patterns on future crop water requirements and water availability. For assessing irrigation as a measure to increase agricultural water security a generalized stochastic approach for a spatial distributed estimation of future irrigation water demand is proposed, which ensures safe yields and a high water productivity at the same time. The developed concept of stochastic crop water production functions (SCWPF) can serve as a central decision support tool for both, (i) a cost benefit analysis of farm irrigation modernization on a local scale and (ii) a regional water demand management using a multi-scale approach for modeling and implementation. The new approach is applied using the example of a case study in Saxony, which is dealing with the sustainable management of future irrigation water demands and its implementation.

show abstract

“…However, this raises important issues in land management, particularly because the low population density often appears to be associated with high fallow requirements to maintain soil fertility (de Ridder et al 2004) and new settlers are bound to meet resistance from incumbent farmers. This study will, therefore, evaluate the impact of climate change conditions under various intensive agronomic and irrigation development scenarios (Brumbelow and Georgakakos 2007) that should alleviate these tensions. We intend thereby to go a step further than Höllermann et al (2010) …”

Section: Introductionmentioning

confidence: 99%

The Impact of Climate Change on Crop Production in West Africa: An Assessment for the Oueme River Basin in Benin

Sonneveld

Keyzer

Adegbola³

et al. 2011

Water Resour Manage

View full text Add to dashboard Cite

Climate change studies for West Africa tend to predict a reduced potential for farming that will affect the food security situation of an already impoverished population. However, these studies largely ignore farmers' adaptations and market adjustments that mitigate predicted negative effects. The paper attempts to fill some of this gap through a spatially explicit evaluation of the impact of climate change on farm income in the Oueme River Basin (ORB), Benin. The ORB is in many respects representative for the middle belt of West Africa where the predominantly sparse occupation leaves potential for migration from more densely populated areas. We apply a number of structural, spatially explicit relationships estimated for the whole territory of Benin to simulate conditions in the ORB proper that are similar to those currently prevailing in the drier North, and the more humid South. Our scenario results factor out for the main crops cultivated the constituent effects on yields, area, and revenue per ton. We find that under average climate change conditions the current low yields are not reduced, provided that cropping patterns are adjusted, while price increases partly compensate for the remaining adverse effects on farmer income. Consequently, without any policy intervention, farm incomes remain relatively stable, albeit at low levels and with increased occurrence of crop failures after extreme droughts. Scenario simulations show that there are also beneficial aspects that can, with adequate interventions, even turn losses into gains. Main channel for improvement would be the reduction Water Resour Manage (2012) of fallow, which is particularly promising because it requires few adjustments in prevailing farming practices, exploits the potential of uncultivated land and improves the water use efficiency. It also enables the Basin's capacity to absorb future migrant flows from more severely affected neighboring Sahelian areas.

show abstract

Consideration of Climate Variability and Change in Agricultural Water Resources Planning

Cited by 25 publications

References 24 publications

Regional Climate Change Impacts on Irrigation Vulnerable Season Shifts in Agricultural Water Availability for South Korea

Regional Climate Change Impacts on Irrigation Vulnerable Season Shifts in Agricultural Water Availability for South Korea

Integrated management of water resources demand and supply in irrigated agriculture from plot to regional scale

The Impact of Climate Change on Crop Production in West Africa: An Assessment for the Oueme River Basin in Benin

Contact Info

Product

Resources

About