Life form and vegetative expansion of white poplar (Populus alba L.) on the iron ore dumps of Kriviy Rig

Abstract

Diversity of life forms of white poplar (Populus alba L.) on the iron ore dumps of Kriviy Rig is studied. Monocormic P. alba plants developing from anemo chorous seeds upon reaching the age of 5–7 years express a high vegetative motility and form coppice shoot yearly. As a result, a simple individuum becomes a complex one that is a clump forming tree. The tree can occupy the area about 490 m2. P. alba is a highly ecologically patient plant on the iron ore dumps.