EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > MONTANE HABITATS
The zone in mountainous regions where the influence of altitude
(vertical relief) results in local climatic regimes that are sufficiently
different from those in the adjacent lowlands as to cause a complex
vertical climate-vegetation-soil zonation.
The Nature Conservancy
Glossary of Terms Used in the US National Vegetation
Classificaion Hierarchy, 1998