NORTH AMERICA FROMAN ECOLOGICAL PER

NORTH AMERICA FROM
AN ECOLOGICAL PERSPECTIVE
North America is a continent rich in diversity. Climatic types
range from the polar arctic to tropical forests. Topographically,
the continent contains a valley with the lowest elevation on
earth and also extensive chains of tall mountains. It is blessed
with rich natural resources as well as an unmatched variety of
scenic natural beauty. Possessed of great variety among its
populations of native animals and plants, since before recorded
history it has also seen the development of a rich diversity
in human cultures.
Ecologically, North America is a mosaic. Many of its ecosystems
possess unique natural features of worldwide significance
and of great individuality. Traditionally, humans in
Western society have viewed themselves and their activities as
separate and isolated from these ecosystems but it is ever more
apparent that human activities and the environment are highly

Results (English) 3:

从美国到北美国是一个多样性的大陆。气候类型的范围从极地北极到热带森林。地形，
大陆包含谷与
地球海拔最低也广泛链高大的山脉。拥有丰富的自然资源，丰富的自然资源，有丰富的自然资源。它的各种各样的动物和植物，因为在它的人类文化中的丰富多样性的发展。它的许多生态系统具有世界性的意义，具有独特的自然特征，具有很好的个性。传统上，人类在西方社会已经把自己和他们的活动看作是独立和孤立于这些生态系统的，但它更是明显的人类活动和环境是高度的