Fenology of a birch leafFenology of a birch leafhttps://www.globe.gov/c/message_boards/find_thread?p_l_id=18703103&threadId=874423842026-05-21T16:57:27Z2026-05-21T16:57:27ZFenology of a birch leafMarina Gojkovićhttps://www.globe.gov/c/message_boards/find_message?p_l_id=18703103&messageId=874423832022-05-03T08:08:59Z2022-05-03T08:05:31ZWe have been monitoring 4 leaves on a birch tree in our scoolyard. We measure their lenght and then calculate it's growth from the last measuring.Marina Gojković2022-05-03T08:05:31Z