Reforestation can strengthen existing forest areas so that new forests are created or deforestation measures are offset. Trees absorb CO2 from the atmosphere as they grow and store it in their biomass - this process is known as carbon sequestration. Forests created through reforestation can become so-called carbon sinks if their growth exceeds the losses caused by deforestation and forest fires, for example.

Forests harbor immense biodiversity. By creating new habitats and connecting existing forest areas, ecosystems can be strengthened, and the livelihood of many species can be secured. If the resulting forests are then managed sustainably, reforestation can generate both ecological and economic value.

Forests also play an important role in erosion control. They stabilize the soil with their root systems and prevent it from being carried away by wind or water, thus maintaining soil fertility. Precipitation is stored, evaporation is reduced, and water flow is regulated – all of which has a positive effect on the water balance of a region. Reforested areas can thus bring significant benefits for climate and environmental protection if they are managed sustainably or preserved in the long term.