Ecological restoration involves returning an ecosystem to a certain condition or state, such as its original condition or a state of proper functioning. It can be difficult to fully restore the original structure of an ecosystem, but restoring its functions is more important. The success of restoration efforts can be influenced by geographical and climatic factors as well as the specific conditions of the site. A study in the Kumaun Himalaya region of India examined the recovery of forested ecosystems following landslide damage at seven sites of different ages since the disturbance. The researchers studied the plant species composition, plant biomass, and soil properties at the sites. They found that the plant species composition and biomass increased over time since the disturbance, and that the soil properties improved as well. These results suggest that restoration of forested ecosystems following disturbance is possible, but it takes time for the ecosystems to fully recover.