A. For centuries, human civilisation has viewed wetlands—areas like marshes, swamps, and bogs—as unproductive wastelands to be drained and converted for agriculture or urban development. This perspective, however, overlooks their profound hydrological importance. Wetlands are, in fact, nature’s highly efficient water management systems. Functioning like immense natural sponges, they absorb, store, and slowly release vast quantities of water from rainfall and river overflow. The systematic destruction of these vital ecosystems across the globe has inadvertently stripped landscapes of their natural flood defences, leading to an increase in the frequency and severity of flooding events. This passage will explore the mechanisms by which wetland restoration serves as a critical strategy for flood prevention, examining historical evidence and modern case studies that underscore its effectiveness and economic viability. B. The primary flood mitigation function of a wetland lies in its unique physical and biological characteristics. The dense vegetation, such as reeds and grasses, combined with the typically flat topography, acts as a natural barrier, slowing the velocity of water flowing…
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