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Grassroots solution: In the Sundarbans, scientists are trying a new way to spur mangrove growth -Sahana Ghosh

-Mongabay/ Scroll.in

Grasses can boost mangrove restoration by strengthening erosion-riddled and nutrient-deficient patches in the region.

Baby mangroves with leathery leaves peep out through lush meadows of grass that greet the Bay of Bengal. Soon enough these densely clumped blades and tufts of salt-tolerant grasses, in a degraded patch in the Indian Sundarbans, will fix the erosion-riddled saltmarsh to aid mangroves to expand their turf.

“As they change the sea-soaked soil for the better by pumping in lost nutrients, the grasses support mangrove expansion in a variety of ways,” said Ranjan Pradhan, a mangrove restorer and resident of the Indian Sundarbans in West Bengal. “They protect against erosion, shield from sea wave energy, trap mangrove seeds dispersed by tidal currents and offer structural support to the seedlings.”

Pradhan tends to the grass meadows that are in transition to support mangroves at the degraded patch on the Durbachoti island in the western part of the Indian Sundarbans. As a field staff member, he works with botanist Krishna Ray on a Department of Biotechnology-funded project that has tried out a biorestoration technology to help mangroves spring back in eroded, sick patches of islands using four native grass species.

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