Pro-poor intervention strategies in irrigated agriculture in Asia: poverty in irrigated agriculture: issues and options: China.

Hussain, Intizar; Biltonen, Eric

doi:10.5337/2011.0047

Cited by 1 publication

(2 citation statements)

References 5 publications

(7 reference statements)

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“…Bangladesh is characterized by a tropical and humid climate with four main seasons, namely, pre‐monsoon (March–May), monsoon (June–September), post‐monsoon (October–November) and the dry/winter season (December–February). With a climate greatly influenced by the Indian monsoon, Bangladesh receives an average rainfall of 2200–2500 mm yr −1 with most of the rainfall (80%) occuring during the monsoonal season (Hussain, ). With such high‐intensity rains, floods are a normal occurrence with occasional high‐intensity flooding inundating as much as 70% of the country's land mass.…”

Section: Introductionmentioning

confidence: 99%

“…Paddy rice cultivation in the floodplains of Bangladesh is a major activity supporting the majority of the rural population. Efforts to improve the productivity of the limited soil and water resources have seen a major push with land consolidation efforts and increased irrigation in the dry season (Hussain, ). However, these areas face the extremes of droughts and flooding due to changes in the monsoonal patterns.…”

Section: Introductionmentioning

confidence: 99%

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Shallow Subsurface Drainage for Managing Seasonal Flooding in Ganges Floodplain, Bangladesh

Okwany¹,

Prathapar

Bastakoti³

et al. 2016

Irrig. and Drain.

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The impact of shallow subsurface drainage was investigated as a pilot study on a 0.13 ha plot of a farmer's field located in Batiaghata, Khulna District, Bangladesh, in the floodplain of the Bay of Bengal. The drainage design differed from traditional subsurface tile drains in two respects: (i) the depth of drains was shallow (30 cm); and (ii) the design did not include a sump and accessories such as pumps (drainage outlets were tidal).A monsoonal paddy rice crop followed by a winter sunflower crop was evaluated. The experimental treatment was a shallow subsurface drainage system with a drain depth of 0.3 m and drain spacing of 8 m. Measurements of surface flooding depth and groundwater table depth were made weekly and subsurface drainage discharge during managed drainage of the field was measured to determine system responsiveness. The managed subsurface drainage enabled the establishment of the winter sunflower crop 1.5 months earlier than the usual local practice, increased the yield and facilitated safe harvest, avoiding pre-monsoonal rainfall damage. Farmers expressed increased interest in managed subsurface drainage for its potential for early establishment of rabi crops and increased yields in the study area. This study outlines the potential benefits resulting from subsurface drainage in Khulna District. © 2016 The Authors. RÉSUMÉ L'impact du drainage souterrain peu profond a été étudié sur une parcelle-témoin de 0.13 ha appartenant à un agriculteur situé à Batiaghata (district de Khulna, dans la plaine inondable de la baie du Bengale); la conception de drainage différait des systèmes traditionnels de drainage souterrain à deux égards: (i) la profondeur des drains était faible (30 cm); et (ii) la conception ne comprenait ni bâche de reprise ni accessoires tels que des pompes (le drainage est à écoulement libre sous influence aval des marées, défini comme drainage géré).Une récolte de riz paddy de mousson suivie par une culture de tournesol d'hiver a été évaluée. Le traitement expérimental était un système de drainage souterrain peu profond avec des drains espacés de 8 m et profonds de 30 cm. Des mesures de hauteur d'eau sur la surface du sol pendant les périodes d'inondation, et de profondeur ont été faites au pas de temps hebdomadaire; le débit a été mesuré pendant la période de fonctionnement des drains pour déterminer la réactivité du système. Le drainage souterrain géré a permis la créa-tion de la culture de tournesol hiver 1.5 mois plus tôt que la pratique locale habituelle, augmenté le rendement et sécurisé la récolte en évitant les dommages liés aux précipitations de pré-mousson. Les agriculteurs ont exprimé un intérêt accru dans le drainage souterrain géré pour son potentiel d'installation précoce des cultures rabi et l'augmentation des rendements dans la zone d'étude. Cette étude décrit les avantages potentiels résultant du drainage souterrain dans le district de Khulna.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%