Like any other alluvial river, because of low velocity and very flat stream slope, the river ganga meanders eroding banks on the concave side and depositing silt on the bank of the convex side of the bend. The ganges forms one of the major river systems in india. Pdf river bank erosion hazard study of river ganga. The indian cities on river banks pdf is extremely important for the upcoming bank examinations. Flood and erosion induced population displacements. The brahmaputra river is one of the largest alluvial rivers in the world characterized by frequent bank erosion leading to channel pattern changes and shifting of bank line. The conference was attended by various leading academic institutions such as indian institute of technology iit roorkee, iit delhi, teri university. Official reports show that on an average 8 km 2 of land are engulfed annually by the river in west bengal. Bank erosion is prominent in malda district caused by the river ganges. Malda, a district of west bengal, is located almost in the.
It already has affected bangladesh by land erosion, salinity intrusion and loss in biodiversity. A study along the subarnarekha river of gopiballavpur section, west bengal, india subrata jana and ashis kr. The correlation is significant at 95 percent level of confidence. In postfarakka period, the fluctuating river discharge by artificial control of river regime has regulated the river bank erosion year the round. The ichamati river is highly susceptible to severe bank migration due to its channel geometry and the local land use. Bank erosion is the wearing away of the banks of a stream or river. Delineating lateral channel migration and risk zones of. Shifting courses of ganga river, it causes and resultant. Bank erosion induced socioeconomic vulnerability in. Riverbank erosion or bankline migration is a common phenomenon of mighty river jaldhaka due to. Its potential threats are coming even strongly in the future. To fulfill the purpose of the present study, 21 river bank erosion affected mouzas along the banks of river gangabhagirathi in jangipur subdivision of murshidabad district, west bengal, have been selected.
Samprotik bonnar poriprekhhite maldoher nodnodi by k. River bank erosionfailure and flooding in these two districts have become a chronic. Flood hit in an agrarian village in west bengal, river bank erosion has robbed locals of their livelihood anyone who can has migrated from the village, say residents, while those left behind. In an agrarian village in west bengal, river bank erosion. River training can also help reduce siltation in front of an intake. It flows past keshiari, narayangarh, sabang and patashpur to join the kasai at tangrakhali under mahisadal police station of purba medinipur district. College, west bengal, india 2department of geography and e.
The objective of the west bengal major irrigation and flood management project for india is to rejuvenate and rehabilitate irrigation existing irrigation network for sustainable development in dvc area and management of floods in lower damodar subbasin. Keleghai river originates at baminigram, near dudhkundi, under sankrail police station of jhargram district in the indian state of west bengal. The experience along the bank of the ganga in malda district. Relation of riverbank erosion with agricultural landuse. Riverbank erosion is one of the most unpredictable and critical type of disasters that takes tolls less in lives but more in livelihood such as agricultural land and homesteads along with other livelihood options that are evacuated. Until now, more than 700 000 people in these two districts have been displaced due to ganges bank erosion mukherjee, 2008. River bank erosion hazard study of river ganga, upstream of farakka barrage using remote sensing and gis article pdf available in natural hazards 6. Monitoring of bank line erosion of river ganga, malda. River bank erosion is one of the critical public concerns in the world at.
It is also to understand the coherence between changes in land use and land cover and annual rate of river bank failure. To understand nature and extent of river bank erosion. Now it is well accepted that the intensity of the ganges bank erosion in west bengal has increased after the construction of farakka barrage rudra, 2010. Eric wolanski, michael elliott, in estuarine ecohydrology second edition, 2016.
River bank erosion is one of the critical public concerns in the world at least in some. River bank erosion induced human displacement and its consequences. This is distinguished from erosion of the bed of the watercourse, which is referred to as scour. In new zealand there is little data on the contribution of bank erosion to measured river sediment yields and it has been a poorly studied process. River bank erosion is a natural and inevitable phenomenon of river and can. Bankside intakes are constructed within a river or canal bank, preferably where the bank is stable and where study of the morphology indicates that the approach will not silt up. Taglines and headquarters of indian banks pdf download from here complete list of central banks in the world pdf download from here monthly puzzle handbook pdf may 2018 download from here last 6 months banking awareness pdfs november to may 2018 download from here important banking terms and definitions related to rbi download. This study is aimed at quantifying the actual bank erosiondeposi tion along the brahmaputra river within india for a period of eighteen years 19902008. It is a complex process which incorporates actions of several complex processes and cannot be attributed to any single process. However, land management patterns that change the hydrograph andor vegetation cover can act to increase or decrease channel migration rates. To fulfill the purpose of the present study, 21 river bank erosionaffected mouzas along the banks of river gangabhagirathi in jangipur subdivision of murshidabad district, west bengal, have been selected. The flora and fauna found along river banks are vital to nutrient and water conservation, and control of soil erosion. The erosion problems of the gangapadma has remained a problem for a long time.
To assess the socio economic status of river bank erosion affected people. Paul department of geography and environment management, vidyasagar university, midnapore721102, west bengal, india author for correspondence abstract. West bengal governor says bjp mps prevented from relief work. River bank erosion along the ganges in malda and murshidabad. Pdf is severity of river bank erosion proportional to. Official reports show that on an average 8 km 2 of land is engulfed annually by the river in west bengal. Bank erosion prone areas of north bengal bank erosion is a common phenomenon in any uncontrolled channel of the deltaic tract. Changes noted in the aerial photos but nothing directly related to the current erosion. For example, severe bank erosion in the lower reach of the bhagirathi river in west bengal has resulted in significant land loss 60% of all households lost land over last 20 years and affected the livelihoods of the people in the study villages along the river. West bengal govt decides to invest rs 107 cr to check.
Assessment stability indicator rating weight weighted value bank soil texture and coherence 60. Analysis of the factors responsible for river bank erosion. To evaluate the riverbank erosion hazard in the study area, data have been collected from relevant scientific literatures, different government. West bengal govt decides to invest rs 107 cr to check riverbank erosion 10 june 2018 current affairs. Due to river meander aggravated by high flow events in summer months, lesscohesive bank material, debris obstructions, poor riprap construction how fast is the bank eroding. For examining the disastrous effect of river bank erosion on the lives of the people of shantipur, we had obtained household data through detailed questionnaire survey of about 223 affected people. Riverbank erosion has both direct and indirect effects on human life and socioeconomy of bangladesh. The kalindri is the branch of river phulhar experienced severe channel change due to lateral shifting associated with bank erosion over course of time. Today we are sharing a very important pdf on indian cities on river banks. The present study investigated the riverbank erosion hazard in study area, its impacts on local people and livelihood vulnerability due to land loss. Analysis of social and psychological terrain of bank erosion. It is said that during the reign of king of nadia, krishnachandra, in 1723, a beautiful temple of lord gopinath was constructed. In an agrarian village in west bengal, river bank erosion has. Although in area west bengal ranks as one of the smaller states in india, it is.
The impact of population displacement due to river bank. Farakka barrage township is located in farakka community development block in murshidabad district. Monitoring of bank line erosion of river ganga, malda district, and. Monitoring of bank line erosion of river ganga, malda district, and west bengal.
There are no reliable formulae to estimate the stability of banks. The tributaries especially the river ajay by its huge sediment and discharge in monsoon period has. This study is aimed at quantifying the actual bank erosion deposi tion along the brahmaputra river within india for a period of eighteen years 19902008. Bank erosion occurs commonly in rivers and upper reaches of estuaries. Impacts of sea level rise on the coastal zone of bangladesh. Analysis of social and psychological terrain of bank. Dec 21, 2017 riverbank erosion has both direct and indirect effects on human life and socioeconomy of bangladesh. The roots of trees growing by a stream are undercut by such erosion. West bengal, indian state located in the eastern part of the country.
Per capita income has almost halved from 19702012 due to land loss. Sea level rise will cause river bank erosion, salinity intrusion, flood, damage to infrastructures, crop failure, fisheries. Subsurface lithofacies and its geomorphic significance. Char, bhowerthana village, coochbehar, westbengal, india. River bank erosion is a natural process and severe bank erosion has serious. Due to agricultural practices on river bank erosion increases 1040 times at which erosion occurring globally. Some objectives have been identified to fulfil the study goal, which are. Exploring impacts and livelihood vulnerability of riverbank. In many places, whether or not the banks are unstable due to human activities, people try to keep a river in a single place. So, it can be sated that river bank erosion creates population displacement from the riverine flood plain of jangipur subdivision. The correlation between river bank erosion and frequency of population displacement due to bank erosion is positive.
River bank erosion is a common problem in river channels in the deltaic tracts and is widespread throughout the course of the ganges in west bengal. Tidal impact leading to sedimentation at lower reach of. The river ganges enters west bengal near rajmahal in jharkhand state and. But in north bengal this phenomenon is active in selected rivers. River bank erosion problem so high peaks of riverbank erosion in west bengal important gk question s2. There is a general tendency of river ganges to shift towards the left bank above farakka barrage malda district, and. Bank line migration and its impact on land use and land. Find west bengal river map, showing rivers which flows in and outside of the state west bengal and highlights district and state boundaries. Bank erosion is often associated with the evolution of meanders, as one bank is silting and the opposite bank is eroding figure 3.
As the roots bind the soil tightly, they form abutments which jut out over the water. West bengal,s large area have immense sense of devotion for ghosh thakur. Measuring hazard vulnerability by bank erosion of the. The west bengal government decided to invest 107 crore rupees to check erosion at vulnerable areas along the banks of the ganga and the padma. A stretch of 15 kilometers will be concretized, to prevent erosion. If bank erosion is likely, local river training and bank defences should be considered. Bank erosion includes two main groups of processes. Kalindri river in malda district, west bengal displays varying degree of erosion. Agradweep a sectrolal placechanging location by bhagirathis. Construction was started in 1961 and completed in 1975 at a cost of. To analysis river bank erosion induced human vulnerability.
A study relating to bank erosion and agricultural practices on floodplain of jaldhaka mansai river at tikiner char thus bears immense significance. Initiatives are being taken for deployment of the chief executive officer of slna from serving government officers on deputation and opening of its savings bank accounts. The ganges bank erosion in other districts of west bengal is less important compared to the malda and murshidabad districts. Erosion of the river bank of bhagirathi and transfer of the gopinath temple banks but on second occasion, it was established on western firsttime 151415. Now it is well accepted that the intensity of the gangesbank erosion in west bengal has increased after the construction of farakka barrage rudra, 2010. Dec 20, 2019 the correlation between river bank erosion and frequency of population displacement due to bank erosion is positive. Pdf river bank erosion hazard study of river ganga, upstream of. But due of the erosion of the river, the exact place cannot be pointed out today. Bank line migration and its impact on land use and land cover. Project in west bengal environmental assessment stakeholder consultation field study report part ii e2767.
Farakka barrage is a barrage across the ganges river located in murshidabad district in the indian state of west bengal, roughly 16. To evaluate the riverbank erosion hazard in the study area, data have been collected from relevant scientific. The first meeting of slna of west bengal will be held on 1st june, 2010 at t buildings, kolkata. The port trust of india, west bengal irrigation department and survey of india. River bank erosion has emerged to be one of the most annoying environmental hazards these days. Sep 18, 2019 it is also to understand the coherence between changes in land use and land cover and annual rate of river bank failure. Ichamati river is a key river of north 24 parganas district in west bengal, and is a connecting link between nadia group of rivers and sundarbans. Rsgis based assessment of river dynamics of brahmaputra.
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