Yamuna Floodplain Erosion
COMMITTEE ON FLOODPLAIN OF THE YAMUNA
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The National Green Tribunal (NGT) Monday formed a committee to look into the alleged erosion of Yamuna floodplain due to movement of heavy vehicles in Haryana’s Sonipat district.
- A bench headed by NGT Chairperson Justice Adarsh Kumar Goel constituted this committee to look into the issue.
- The committee was constituted following a plea alleging erosion of the Yamuna floodplain in Sonipat due to movement of heavy vehicles, loaded trucks in the area.
- Permitting heavy vehicles in the embankments of the river is “destructing the ecology”. This is a violation of ‘precautionary principle’ of environment law.
- The newly constituted committee comprising;
- The Principal Secretaryof the Haryana Irrigation and Water Resources Department,
- The Member Secretary of the Haryana State Pollution Control Board and
- The Director of the Mines and Geology Department.
- The Principal Secretary of the Haryana Irrigation and Water Resources Department will be the nodal agency for coordination and compliance. The committee would submit a joint report within one month by e-mail so that matter can be taken up before the monsoon.
- A floodplain, or flood plain, is flat or nearly flat land adjacent to a stream or river that experiences occasional flooding.
- A flood plain consists of two parts. The first is the main channelof the river itself, called the floodway. Floodways can sometimes be seasonal, meaning the channel is dry for part of the year and they are known as “ephemeral stream”.
- The second part is beyond the floodway is the flood fringe. The flood fringe extends from the outer banks of the floodway to the bluff lines of a river valley. Bluff lines, also called valley walls, mark the area where the valley floor begins to rise into bluffs.
- There are two major processes involved in the natural development of flood plains:
- Erosion – The erosion of a flood plain describes the process in which earth is worn away by the movement of a floodway.
- Aggradation – Aggradation (or alluviation) of a flood plain describes the process in which earthen material increases as the floodway deposits sediment.