Varanasi: Appreciating the Drive of Largescale plantations that have just been held in the state, noted river engineers and retired professor of Universitas Banaras Hindu (BHU) Prof.
UK Chowdhary has also warned of non-scientific tree plantations in the river body that can worsen the threat of flooding.
In a letter written by the Head of Yogi Aditentalath Minister, he urged him to “instruct officers concerned to be more careful in tree plantations, especially in the plain zone, because the tree plantations were not scientific in the shallow of the basin or floods could become disasters”.
Explaining the point, he said that nature gave hair on the human body and in various creatures in specific locations in certain ways for certain purposes.
Its growth is based on internal and external conditions of the body’s location and for certain purposes.
“Similar to this, plantations in the river body where we live well in the floodlands or in the basin, requiring specific knowledge about the condition of the land boundary (anatomy), form and location (morphology) and surface water (dynamics).
If this condition is not fulfilled In the case of tree plantations in the plains of the flood, the results may be a disaster, “he said.
He further explained that plantations in the River Floodland can increase sedimentation or erosion and can cause drastic changes in the morphology and dynamics of the river.
“This might increase high flood amplitude and can cause extensive soil erosion.
Thus, plantations in the wrong location can intensify flooding and winding,” he added.
The river floodland is limited to the land from where the ground slope increases instantly and meet the river.
With this slope criterion, the floodland of the convex bank, the side of the sand bed, falls between 0.5 and 4 times the minimum average width of the river.
And the concave bank, the city side bank, is 0.1 to 1.0 times the width.
He said that there should be no plantation in the floods beside the sand bed.
This is because the large turbulence of floods will be disbursed by plants and deposition of sand will at a higher level causing an increase in pressure tensile strength.
Thus, plantations will increase the flood height.
Furthermore, plantations must also be limited in the first semester of a concave bank, the side of the city of the city.
For example, bank parts such as Ganga from Nagwa to Dashashwamedh Ghat Plantation will intensify sedimentation on Ghats.
This is because this area is in a different streamline zone.
And, here a low-level ground water table with a mild slope there.
Thus, the plantation zone in the floodplains of Ganga in Varanasi is on the outside of the side of the city of the city, the zone gathered streamline.
Here, the erosion bag is there and the ground water table remains at a higher level and with a larger slope.
Thus, the floodland of half of the ganga in Varanasi is the most important part of the plains of floods for tree plantations, he said.
Uttar Pradesh: Experts warn against non-scientific tree plantations in river basins
