Anyị niile maara na osisi mara mma na ọtụtụ n'ime anyị nọ n'ime ime obodo na obodo ọhịa nwere ike inye ndepụta ịsa ákwà nke osisi ndị ọzọ na-erite uru. Ugbua, Alliance for Community Trees emewo ka ọ dịrị anyị mfe ịtu aka ndị mmadụ na nyocha nke kwadoro ndepụta uru ahụ.
ACTrees achịkọtala ndepụta akụrụngwa nke ọtụtụ uru ndị sayensị gosipụtara na osisi n'otu akwụkwọ. N'ịbụ nke agbakọtara na otu, uru na ọmụmụ ihe kwekọrọ na-ekwu maka uru dị ukwuu nke osisi obodo mepere emepe na obodo. Pịa ebe a ka ịhụ akwụkwọ.