Кстати, цвет меняется потому, что дерево высасывает из листьев ферментированные сахара перед сбросом листвы осенью, в преддверие снегопадов способных поломать ветки деревьям, не сбросившим листву. Так, что процесс по своему драматизму соизмерим со стрижкой волос у людей. :)
http://www.sciencedaily.com/releases/2007/10/071025112042.htm "By taking careful stock and laboratory analyses of the autumn foliage of sweetgum and red maple trees along transects from floodplains to ridge-tops in a nature preserve in Charlotte, N.C., former University of North Carolina at Charlotte graduate student Emily M. Habinck found that in places where the soil was relatively low in nitrogen and other essential elements, trees produced more red pigments known as anthocyanins."
Comments 7
Так, что процесс по своему драматизму соизмерим со стрижкой волос у людей. :)
Reply
Reply
Reply
"By taking careful stock and laboratory analyses of the autumn foliage of sweetgum and red maple trees along transects from floodplains to ridge-tops in a nature preserve in Charlotte, N.C., former University of North Carolina at Charlotte graduate student Emily M. Habinck found that in places where the soil was relatively low in nitrogen and other essential elements, trees produced more red pigments known as anthocyanins."
Reply
Leave a comment