Irrigation management under water scarcity

Pereira, L. S.; Oweis, Theib; Zaı̈ri, A.

doi:10.1016/s0378-3774(02)00075-6

Cited by 735 publications

(435 citation statements)

References 47 publications

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“…Farming practices should, therefore, adapt to the changing environment. Farmers' decision-making processes on adopting improved technology and irrigation management systems have been extensively studied in the literature (Gebrehiwot and van der Veen, 2013;Mertz et al, 2009;Pereira et al, 2002;). The majority of the adaptation studies to date focus on climate change and variability in general (Gobrehiwot and 1 There are three cropping seasons based on the time of sowing and harvesting, namely , and Kharif (1 July-15 October), during a year in Bangladesh.…”

Section: Introductionmentioning

confidence: 99%

Farmers’ adaptation to water scarcity in drought-prone environments: A case study of Rajshahi District, Bangladesh

Alam

2015

Agricultural Water Management

175

123

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Water scarcity and droughts pose serious threats to the livelihood of farming communities and the economy in many parts of the world. Using a survey of 546 farming households and employing multinomial logit regression, this study investigates rice farmers' adaptation to water scarcity in a semi-arid climate in Bangladesh. It identified factors determining farmers' adaptation responses to addressing water scarcity. The analysis shows that farmers with more experience of farming, better schooling, more secure tenure rights, better access to electricity and institutional facilities, and an awareness of climatic effects are more likely to adopt alternative adaptation strategies. Farmers' alternative adaptation choices are examined in comparison to the traditional approach of groundwater irrigation. This study raises issues of sustainability of agricultural adaptation practices in the context of an increasing dependence on groundwater irrigation. The results provide an insight to sustainable irrigation practices and an understanding of the characteristics of farms and farming households to frame better strategies to cope with water-stressed regimes in drought-prone environments.

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Section: Introductionmentioning

confidence: 99%

Farmers’ adaptation to water scarcity in drought-prone environments: A case study of Rajshahi District, Bangladesh

Alam

2015

Agricultural Water Management

175

123

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“…In such case, due to the non-flexibility of the delivery systems, farmers irrigate whenever the water is available. In such circumstances, farms are over irrigated [59]. Both farmers and irrigation scheme managers should be aware of the negative impacts of such practices (lack of oxygen for plants, leachate of fertilizers, water losses, etc.).…”

Section: Evaluation Of Irrigation Schedulingmentioning

confidence: 99%

Impact of Infiltration Process Modeling on Soil Water Content Simulations for Irrigation Management

Feki

Ravazzani

Ceppi

et al. 2018

Water

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Abstract:The uncertainty in a hydrological model, due to its structure or implemented input parameters, affects the accuracy of simulations that are usually used for important applications such as drought predictions, flood risk assessment, irrigation scheduling, ground water recharge and contamination. Several models describing soil infiltration processes have been developed. Some are analytical, while others implement numerical solutions of the Richards' equation. The objective of this work was to assess the impact of infiltration process modeling on soil water content simulations. For this study, different infiltration models were included within FEST-WB (Flash Flood Event-based Spatially-distributed rainfall-runoff Transformations-Water Balance) distributed hydrological model (SCS-CN, Green and Ampt, Philip and Ross solution). Performances of implemented infiltration models in simulating soil water content were evaluated against observations acquired in the experimental site located in a maize field in northern Italy. Soil water content was monitored together with continuous measurements of meteorological data. A sensitivity analysis was performed to assess the most important parameters governing infiltration process in the different models tested. A comparison of soil water content simulations show that Ross solution allowed the description of soil moisture variation along the vertical, but simpler lumped models provide sufficient accuracy when properly calibrated.

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“…However, most recent research on adaptation processes has mainly focussed on agricultural systems in arid and semi-arid regions (e.g. Santos Pereira et al 2002;Habiba et al 2012;Wheeler et al 2013;Kirby et al 2014). Despite the apparent lower reliance on irrigation in temperate or humid regions, it can be a highly productive use of water.…”

Section: Introductionmentioning

confidence: 99%

Developing drought resilience in irrigated agriculture in the face of increasing water scarcity

2017

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In many countries, drought is the natural hazard that causes the greatest agronomic impacts. After recurrent droughts, farmers typically learn from experience and implement changes in management to reduce their future drought risks and impacts. This paper aims to understand how irrigated agriculture in a humid climate has been affected by past droughts and how different actors have adapted their activities and strategies over time to increase their resilience. After examining recent drought episodes from an agroclimatic perspective, information from an online survey was combined with evidence from semistructured interviews with farmers to assess: drought risk perceptions, impacts of past drought events, management strategies at different scales (regional to farm level) and responses to future risks. Interviews with the water regulatory agency were also conducted to explore their attitudes and decision-making processes during drought events. The results highlight how agricultural drought management strategies evolve over time, including how specific aspects have helped to reduce future drought risks. The importance of adopting a vertically integrated drought management approach in the farming sector coupled with a better understanding of past drought impacts and management options is shown to be crucial for improving decisionmaking during future drought events.

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Irrigation management under water scarcity

Cited by 735 publications

References 47 publications

Farmers’ adaptation to water scarcity in drought-prone environments: A case study of Rajshahi District, Bangladesh

Farmers’ adaptation to water scarcity in drought-prone environments: A case study of Rajshahi District, Bangladesh

Impact of Infiltration Process Modeling on Soil Water Content Simulations for Irrigation Management

Developing drought resilience in irrigated agriculture in the face of increasing water scarcity

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