DENDROLOGY

Detailed explanation-1: -In high mountains, tundra-like ecosystems occur above the alpine treeline and are generally called alpine tundra .

Detailed explanation-2: -Alpine tundra are located at very high elevations atop mountains, where overnight temperatures fall below freezing. Tundra regions typically get less than 25 centimeters (10 inches) of precipitation annually, which means these areas are also considered deserts.

Detailed explanation-3: -Tundra is found in the regions just below the ice caps of the Arctic, extending across North America, to Europe, and Siberia in Asia. Much of Alaska and about half of Canada are in the tundra biome.

Detailed explanation-4: -Alpine tundra is located on mountains throughout the world at high altitude where trees cannot grow. The growing season is approximately 180 days. The nighttime temperature is usually below freezing. Unlike the arctic tundra, the soil in the alpine is well drained.