Palm, coconut, cherry blossom and more such slender trees are being planted across New Town. The New Town Kolkata Development Authority (NKDA) has decided to change the way it plants trees in the township after hundreds of trees toppled over in Calcutta and Salt Lake during a thunderstorm that lashed the city on April 17. Trees that spread out in a large canopy are being avoided as they are susceptible to being uprooted during storms if not pruned properly. Naturalists say trees topple easily in Calcutta because of too much of concretisation around them. Trees need soil around them for the surface roots to grow. Along with the roots that penetrate into the soil, the surface roots, too, aid a tree to stand tall. If the area around a tree is concreted, the surface roots often fail to grow, a naturalist said.
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