地理漫步·世界地理英语30篇（1）
1 / 30
正在校验访问权限...
Vertical Zones on the Hengduan Mountains
横断山区垂直带谱
-
The Hengduan Mountains stretch across southwest China, where elevation changes exceed 6,000 meters within short horizontal distances.
-
Because of this steep rise, temperature and moisture shift rapidly, creating distinct vegetation belts stacked like layers on a cake.
-
At the base lie subtropical evergreen forests, while alpine meadows appear above 4,000 meters where cold winds limit tree growth.
-
Glaciers cap the highest peaks, and snowmelt feeds rivers that flow south into Southeast Asia.
-
Local ethnic communities have adapted farming practices to each zone, growing rice in valleys and barley on high slopes.
-
Scientists monitor these bands closely, as climate warming pushes treelines upward and shrinks alpine habitats.
-
Soil types also vary sharply—deep red earths dominate lowlands, whereas thin, rocky soils cover upper slopes.
-
This vertical diversity supports over 6,000 plant species, more than all of Europe combined.
-
Unlike gradual transitions elsewhere, here one can hike through five climate zones in under 20 kilometers.
-
Such dramatic layering makes the Hengduan region a global natural laboratory for studying altitude-driven ecology.