What do humans do to freshwater marshes?

Humans impact freshwater marshes primarily through agricultural expansion, urban development, and water management practices, which can lead to habitat loss and degradation. Pollution from runoff often introduces harmful chemicals and nutrients, disrupting the delicate ecosystem balance. Additionally, water diversion for irrigation and flood control alters natural hydrology, further threatening the health and biodiversity of these critical habitats. Conservation efforts are essential to mitigate these impacts and restore marsh ecosystems.