What role do wetlands play in agricultural conservation?

Wetlands play a crucial role in agricultural conservation primarily by filtering pollutants and providing habitat. This vital ecosystem naturally absorbs and breaks down contaminants such as sediments, nutrients, and other pollutants from agricultural runoff, thereby improving water quality. By trapping these substances, wetlands prevent them from entering larger bodies of water, which can lead to issues like algal blooms and degradation of aquatic ecosystems.

Additionally, wetlands serve as habitats for a wide range of wildlife, including birds, amphibians, and invertebrates. This biodiversity is essential for maintaining the ecological balance and supporting agricultural practices by promoting pest control and pollination services. The presence of healthy wetlands also contributes to soil health and can enhance agricultural productivity by supporting the water cycle.

The other options do not accurately reflect the beneficial functions of wetlands. For instance, wetlands do not increase water runoff; instead, they help retain water, reducing surface runoff and promoting groundwater recharge.