Rivers, chars and char dwellers of Bangladesh

Sarker, Maminul Haque; Huque, Iffat; Alam, M. J.; Koudstaal, Rob

doi:10.1080/15715124.2003.9635193

Cited by 185 publications

(132 citation statements)

References 3 publications

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“…al., 200 I;Mirza, 2002). On the other hand, a number of indications may be found in the literature suggesting that the 1950 Assam earthquake affected the Brahmaputra-JamunaPadma-Lower Meghna system in various ways (Krug, 1957;Goswami, 1985;Brammer, 1995;Zhou and Chen, 1998;Verghese, 1999;Sarker, et al, 2003;Goodbred et al 2003; Sarma and Phukan, 2004;Sarma, 2005). For example, Brammer (1995) suggested that the observed widening in the upstream reach of the Jamuna River during the 1970s and 1980s…”

Section: Working Hypothesismentioning

confidence: 99%

Morphological Response of the Brahmaputra–Padma–Lower Meghna River System to the Assam Earthquake of 1950

Sarker

Thorne

2006

Braided Rivers

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Sediment rating curves Chapter 6 Conceptual model 174 6.1 Introduction 6.2 Celerity of the disturbance in a riverbed 6.3 Changes in the Independent Variables 6.3.1 Changes in the flow regime 6.3.2 Changes in bed sediment size 6.3.3 Changes in the sediment regime 6.4 Changes in the Dependent Variables 6.4.1 Changes in bed elevation 6.4.2 Changes in width 6.4.3 Changes in braiding intensity 6.4.4 Phase lags in the observed morphological changes 65 Development of the conceptual process-response model.. 201 6.5.1 Background 201 6.5.2Adjustments in the upstream reach of the Jamuna River 202 6.5.3 Downstream reach of the

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Section: Working Hypothesismentioning

confidence: 99%

Morphological Response of the Brahmaputra–Padma–Lower Meghna River System to the Assam Earthquake of 1950

Sarker

Thorne

2006

Braided Rivers

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“…Pahuja and Goswami (2006) reported that the Brahmaputra River has destroyed nearly 4000 km 2 of agricultural land. Sarker et al (2003) revealed that in Bangladesh most of the char land is fertile cultivable land and huge amount of these are eroded by only Jamuna River.…”

Section: Types Of Migrationmentioning

confidence: 99%

Impacts of riverbank erosion hazards in the Brahmaputra floodplain areas of Mymensingh in Bangladesh

2017

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The study was conducted to investigate the impacts of Brahmaputra riverbank erosion hazard on livelihood pattern of char people, agriculture and environment. Five villages of Mymensingh district near to the Brahmaputra River were selected. A semi-structured questionnaire, interview, secondary data sources, field observation and focus group discussion were utilized for this study. Result revealed that erosion has a great impact on livelihood, agriculture, environment and other sectors. Population displacement is a common phenomenon in the study area due to riverbank erosion. During the river erosion 73% people took temporary and 27% took permanent migration where 26% had chosen town as permanent migration. About 56% people loss 0 to 5 acres and 33% loss 6 to 10 acres of their land. Before riverbank erosion 61% people were involved in farming but after riverbank erosion it decreased into 24%. About 88% respondents used tube well as the main source of drinking water, which was smaller than that of the national rural rate 96.42% and some people used river water as drinking, bathing, washing clothes and household materials, and that was so unhygienic. The major diseases like diarrhea, dysentery, asthma, TB, typhoid, etc. were prevalence during flood and river erosion as well as medical facility was also poor. Only 9% people used medicine from consultant doctor. The study has explored a negative fact that without any organizational support, the people of the villages have to formulate and undertake various adaptation techniques in their own way. Finally, the study has recommended some suggestions for the policy planners and implementers for the future development of the riverbank erosion victims in Bangladesh. It emphasizes the importance of the government and non-governmental organizations to take their own responsibility to the devastating situation of the riverbank erosion.Progressive Agriculture 28 (2): 73-83, 2017

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“…Both human-induced disturbances and intrinsic instability put the enormous social, economic, and ecological values of large braided rivers under pressure. For example, fertile land along the Brahmaputra River (India) and Jamuna River (Bangladesh) has been consumed by the rivers due to severe bank erosion (e.g., Sarker et al, 2003;Baki and Gan, 2012, Fig. 1c), while navigation is hampered by large and still unpredictable channel shifts.…”

Section: Bar and Channel Dynamics In Braided Riversmentioning

confidence: 99%

Network response to disturbances in large sand-bed braided rivers

2016

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Abstract. The reach-scale effects of human-induced disturbances on the channel network in large braided rivers are a challenge to understand and to predict. In this study, we simulated different types of disturbances in a large braided river to get insight into the propagation of disturbances through a braided channel network. The results showed that the disturbances initiate an instability that propagates in the downstream direction by means of alteration of water and sediment division at bifurcations. These adjustments of the bifurcations change the migration and shape of bars, with a feedback to the upstream bifurcation and alteration of the approaching flow to the downstream bifurcation. This way, the morphological effect of a disturbance amplifies in the downstream direction. Thus, the interplay of bifurcation instability and asymmetrical reshaping of bars was found to be essential for propagation of the effects of a disturbance. The study also demonstrated that the large-scale bar statistics are hardly affected.

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Rivers, chars and char dwellers of Bangladesh

Cited by 185 publications

References 3 publications

Morphological Response of the Brahmaputra–Padma–Lower Meghna River System to the Assam Earthquake of 1950

Morphological Response of the Brahmaputra–Padma–Lower Meghna River System to the Assam Earthquake of 1950

Impacts of riverbank erosion hazards in the Brahmaputra floodplain areas of Mymensingh in Bangladesh

Network response to disturbances in large sand-bed braided rivers

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