you should be gracefull that you could take down allot of trees and avoid having to spend the time and energy cutting down each of them ;-)
PS. if you cut the trees a few times so they do not fall, then you can use the trees as defence against the enemys that attack your base now and then.. Just run over the tree while in combat and hit it 1 time and it will make other trees fall and roll down a hill or similar.. ;-)