![]() Oysters, for instance, live in coastal wetlands and bays. This protects homes, businesses, and agricultural areas. Wetlands, with their spongy soil, absorb the energy and water of a storm surge. city of New Orleans, Louisiana, in 2005, had a storm surge of about 7.5 meters (25 feet). Hurricane Katrina, which devastated the U.S. Storm surges can be more than a meter (three feet) tall. Storm surges are the waves that follow a hurricane or typhoon as it makes landfall. Wetlands also protect coastal areas from powerful storm surges. A wetland barrier between developed inland regions and the coast can protect fertile soil for agriculture, as well as development and recreation. Plants and trees anchor the soil and prevent it from washing out to sea. Wetlands play an important natural role in coastal ecosystems. Dredging a harbor can also deepen the port, which allows larger ships, with more cargo, to dock. Dredging a wetland near a harbor can allow more ships to dock, increasing the economic activity of the area. Dredging and drying a wetland can create more land for homes, businesses, or agriculture. Most dredging is done to develop urban areas or expand ports. Wetlands Wetlands around the world have been damaged by dredging (digging). Living shorelines do not interrupt natural relationships between land, wetlands, and bodies of water. This is done through the placement of plants, stone, sand, and other materials. A living shoreline is a way of managing coastal areas to protect, restore, or enhance the habitat.
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