What is one of the main protections for wetlands?

Buffers and label restrictions are essential protections for wetlands because they help to maintain the ecological integrity of these sensitive ecosystems. Buffers typically involve the establishment of vegetative zones around wetlands that prevent pollutants and runoff from entering the wetland areas. These zones not only act as filters for harmful substances but also provide habitat for wildlife. Label restrictions can be implemented on products that may negatively impact wetlands, controlling what can be used in proximity to these areas to minimize harmful interactions.

The other options, while important in a broader context, do not serve directly as the main protections for wetlands. Periodic assessments of water quality monitor the health of wetlands but do not provide direct safeguards. Regular maintenance of natural habitats helps sustain ecosystems, but does not inherently protect wetlands from external threats. The removal of invasive plant species is beneficial for maintaining the biodiversity of natural habitats, including wetlands, yet it does not encompass the protective measures that buffer zones and regulations enforce.