Analysis of flow modifications and stress in the Tangon river basin of the Barind tract

Pal, Swades; Saha, Arpita; Das, Tithi

doi:10.1080/15715124.2018.1546714

Cited by 30 publications

(12 citation statements)

References 44 publications

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“…Tangan river, a downstream tributary of river Mohananda flows over Bangladesh and India (125 km on Bangladesh and 142 km on India) and built up a 2388.88 km 2 trans-baundary basin over Indo-Bangladesh barind region (1234.68 km 2 in Bangladesh and 1154.20 km 2 in India) extending from 26⁰ 19' 56'' N/88⁰ 14' 14'' E to 24⁰ 57' 22'' N/ 88⁰ 29' 29'' E. The region is dominated by subtropical monsoon types of climate having high degree seasonal variation of temperature and rainfall. The average rainfall per year of this region occurs between 1257.42 mm to 1508.05 mm (Pal et al, 2019), about 80% of which takes place in the monsoon season covering the months June to September. The topography is flat with an elevation range between 8 to 83 meters.…”

Section: Study Areamentioning

confidence: 99%

“…Flood common natural hazards and almost occur in every year in the catchment due to very high intensity or short extent of monsoon rain spell. The downstream segment of the river basin experienced a reduction of river flow due to the construction of Boda barrage (Pal et al, 2019). Apart from this, cross-border issues are also experienced between India and Bangladesh in this river basin.…”

Section: Study Areamentioning

confidence: 99%

“…Rainwater and river water are the main sources of water of these wetlands. Some researchers already identified the damming effects on wetlands hydrological characteristics in this river basin (Pal et al, 2019;. India, 1991 and.…”

Section: Study Areamentioning

confidence: 99%

“…The extension of agricultural land in the flood plains region often creates conflict with the existing wetland (Pal and Saha, 2019;. Fertile land in the alluvial plains facilitates agriculture and such agricultural extension often replaces wetland.…”

Section: Distance From Agriculture Landmentioning

confidence: 99%

“…Apart from this Boda dam was constructed in 1989 in Panchagarh district in Bangladesh for irrigation purpose over the upper part of the river basin significantly reducing water discharged level by 63% in the downstream of Tangon river. (Pal et al, 2019). This reduction of water level is caused by hydrological dynamics in riparian wetlands of this river basin, areal squeeze of the wetland by 71.71% from pre to post dam periods (Chakraborty et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Modelling Wetland Eco-hydrological state in Pressure-State-Response framework validating it using Ecosystem service potentiality approach

Singha

Pal

2021

Preprint

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The present study has tried to model the Eco-hydrological state of wetlands for both pre dam and post dam periods of the Lower Tangon river basin using Pressure-State-Response (PSR) framework with advanced machine learning (ML) algorithms and validated it with Ecosystem service potentiality (ESP) approach along with conventional approaches of validation. All the applied models have explored that 22.48–39.52% wetland under very good EHS zone has converted into 15.52–16.57% relatively lower category of EHS zones indicating the gradual degradation of EHS quality over wider parts of the wetland. The result of model validation has noted the acceptability of all the applied models but performance is found high in the case of REPtree and Bagging models. Expert-based ESP behaves accordingly with the EHS models. Based on the results, the study suggests using ML models for such modelling and used field-based validation approach like ESP.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Distance From Agriculture Landmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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