Groundwater Use for Irrigation and its Productivity: Status and Opportunities for Crop Intensification for Food Security in Bangladesh

Ahmad, Mobin-ud-Din; Kirby, Mac; Islam, Md. Shabiul; Hossain, Md. Jakir; Islam, Md. Masbahul

doi:10.1007/s11269-014-0560-z

Cited by 53 publications

(33 citation statements)

References 30 publications

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“…Cropping intensity had a small but significantly negative effect on yield during the study period. This may initially seem counter-intuitive, as clearly the increase in cropping intensity was a major contributor to food security nationally [28]. Whilst we find that cropping intensity has a negative effect on yield in the models, this does not contradict the fact that production is positively influenced by cropping intensity because cropping intensity implies an increase in the number of harvests.…”

Section: Cropping Intensitycontrasting

confidence: 53%

“…Therefore, it is crucial to continue to utilize groundwater for irrigation. However, there is already evidence of overexploitation of groundwater in some areas and there are concerns that the current pumping rates may not be sustainable [28]. Further increasing of area under groundwater irrigation is a challenging task, and some areas may even need a reduction in groundwater irrigation because aquifers are overused.…”

Section: Resultsmentioning

confidence: 99%

“…Water management and cropping intensity have substantially influenced rice production in the country [24,25], and these may possibly impact rice production in future [26][27][28]. During the 1990s, rain-fed agriculture shifted to irrigation-based agriculture utilizing both surface and groundwater.…”

Section: Open Accessmentioning

confidence: 99%

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Spatio-temporal analysis of the impact of climate, cropping intensity and means of irrigation: an assessment on rice yield determinants in Bangladesh

2016

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Background: Rice (Oryza sativa) is the most important staple food for almost half of the global population. Improvement of rice yield is of global concern and is influenced by a wide variety of regional factors including climate and agricultural management. This research addresses the need to understand the relative influence of these factors and develop geographically explicit determinants of rice yield across Bangladesh. The specific objectives of this study were (a) to assess spatial and temporal variation in rice yield, cropping intensity and means of irrigation, and (b) to evaluate the relative importance of spatio-temporal change in climate, cropping intensity and means of irrigation on rice yield. A database on rice yield, management practices (cropping intensity and means of irrigation) and climate was collected from the Bangladesh Bureau of Statistics and Bangladesh Meteorological Department, respectively, for the years of 1981-2010. Linear mixed models were used to assess the influence of different determinants on rice yield. Results:The results indicate that irrigation, particularly groundwater irrigation, had a stronger influence on rice yield than climatic conditions and cropping intensity in Bangladesh during the study period. Temperature and rainfall showed negative impacts on yield. Rice yield also declined when cropping intensity increased. Conclusions:Both climate and groundwater extraction need to be considered in future policy development. However, the current extraction rate of groundwater may not be sustainable in the future to increase rice yield. The study concludes that spatio-temporal differences in observed yield allow interpretation of potential determinants that are important for food policy development in Bangladesh.

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Section: Cropping Intensitycontrasting

confidence: 53%

Section: Resultsmentioning

confidence: 99%

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Spatio-temporal analysis of the impact of climate, cropping intensity and means of irrigation: an assessment on rice yield determinants in Bangladesh

2016

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“…However, falling groundwater levels in some areas have led to concerns about unsustainable groundwater use. Shamsudduha et al (2009), Shahid and Hazarika (2010), Kirby et al (2013), Ahmad et al (2014) and Alam (2015) concluded that the use of shallow aquifers for irrigation in the Barind area of northwest Bangladesh is unsustainable. Rahman and Roehrig (2006) used a numerical groundwater model to analyse the water balance for the Barind area of northwest Bangladesh, and showed that recharge is insufficient in some parts of the area.…”

Section: Introductionmentioning

confidence: 99%

The impact of irrigation development on regional groundwater resources in Bangladesh

Kirby

Ahmad

Mainuddin

et al. 2015

Agricultural Water Management

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“…This is the case of many irrigation areas that use groundwater resources (Clemens 2006;Ahmad et al 2014), and more particularly, of greenhouse irrigation areas in the Mediterranean Basin.…”

mentioning

confidence: 99%

Water Productivity in a Mediterranean Semi-Arid Greenhouse District

Sánchez

Reca

Martínez

2015

Water Resour Manage

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An irrigation performance analysis has been carried out in a horticultural greenhouse area located in the BCampo de Níjar^(Southern Spain) in order to assess its irrigation productivity. Irrigation water productivity indicators were calculated for a wide sample of crops over the course of two different study periods. These productivity indices were similar in average to those reported in other nearby greenhouse irrigation districts although their variability was very high. The overall productivity ratio (CYR) was 73.9 %. The low values for CYR were expected as irrigation water in this area has high salinity levels and low irrigation leaching fractions were applied. The influence of type of crop, greenhouse technology and agricultural season in the CYR values was analyzed. None of these factors had a statistically significant influence. A multivariate regression analysis was performed to model the crop yield as a function of several quantitative variables. The results showed that the most significant variable was the relative irrigation supply (RIS). Other variables that had an influence of the productivity were the length of the growing cycle in the case of tomato and the number of greenhouses per farm in the case of watermelon. Results of this work are useful as they highlight the weaknesses of the system and suggest possible measures in order to improve its productivity and sustainability.

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Groundwater Use for Irrigation and its Productivity: Status and Opportunities for Crop Intensification for Food Security in Bangladesh

Cited by 53 publications

References 30 publications

Spatio-temporal analysis of the impact of climate, cropping intensity and means of irrigation: an assessment on rice yield determinants in Bangladesh

Spatio-temporal analysis of the impact of climate, cropping intensity and means of irrigation: an assessment on rice yield determinants in Bangladesh

The impact of irrigation development on regional groundwater resources in Bangladesh

Water Productivity in a Mediterranean Semi-Arid Greenhouse District

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