Since the first colonists arrived in Pennsylvania, there has been a profound transformation in the health and dynamics of streams and rivers in the Little Lehigh watershed. Human actions include deforestation for agriculture and settlement, industrialization, urbanization, and the construction of dams, all of which have altered the waterways.  Intensive land use practices have led to increased erosion, sedimentation, and pollution which have disrupted the natural balance of stream ecosystems.

One of the most impactful actions we can take to restore the ecosystem of the Little Lehigh watershed is to plant trees alongside streams to create riparian buffer areas.  These are vegetated areas of trees, shrubs, and plants that help protect water quality by acting as natural filters, trapping sediments and pollutants from stormwater runoff. They prevent soil erosion by stabilizing riverbanks with their intricate root systems, and they provide shade which keeps the stream water at a cooler temperature which is essential for biodiversity.

Our volunteers participate in tree planting projects in spring and fall. Once trees are planted, they also need to be maintained for several years to ensure that they are protected from deer and rodents.