Tree-planting efforts get a boost from drones.
Foresters in Canada are using drones to help replant forests devasted by wildfire. Manual tree planting is done in groups and is hard work: individuals carry a long-handled spade and a 40-pound sack of infant trees and alternate spearing the soil and setting the baby tree in the hole. The process is often started in the early morning when the soil is moist. Following strict quality and density guidelines, manually planting trees can yield between 1,000 and 3,000 trees a day. Drones provide a technological alternative to these manual techniques. Click here to read more.