QuesHub > 20% > 20% > 20% > ASK DETAIL

How much of the earth is covered by tundra?

Scarlett Lee | 2023-06-05 17:53:18 | page views:1647
I'll answer
Earn 20 gold coins for an accepted answer.20 Earn 20 gold coins for an accepted answer.
40more

Amelia Thomas

Studied at the University of Vienna, Lives in Vienna, Austria.
As an expert in environmental geography, I can provide you with an insightful analysis of the tundra biome and its coverage on Earth. The tundra is a fascinating ecosystem characterized by its cold climate, sparse vegetation, and unique wildlife. It is a critical component of our planet's biodiversity and plays a significant role in global climate regulation.

Step 1: English Answer

The tundra is a unique biome predominantly found in the high latitudes of the Northern Hemisphere, particularly within the Arctic Circle. It is defined by its cold, harsh climate, with short, cool summers and long, severe winters. The vegetation in this region is typically low-growing due to the limited growing season and the perpetually frozen subsoil known as permafrost.

The coverage of the tundra is substantial, as it encompasses a significant portion of the Earth's surface. According to various scientific assessments, the tundra biome covers approximately 20% of the Earth's land area. This vast expanse stretches across the northern parts of North America, Europe, and Asia, forming a nearly continuous belt around the North Pole.

One of the key features of the tundra is its treeless nature. The extreme cold and the presence of permafrost make it difficult for trees to take root and thrive. Instead, the landscape is dominated by grasses, mosses, lichens, and low-lying shrubs that are adapted to the harsh conditions.

The climate of the tundra is another defining characteristic. The average temperature in the warmest month remains below 10°C (50°F), and the winters can drop to well below -30°C (-22°F). These conditions limit the types of organisms that can survive in the tundra, leading to a unique set of flora and fauna that are specially adapted to the cold.

The wildlife in the tundra is also adapted to the extreme conditions. Animals such as the Arctic fox, polar bear, caribou, and musk ox are well-known inhabitants of the tundra. These species have developed unique survival strategies, such as hibernation, migration, or specialized body structures, to cope with the harsh environment.

The importance of the tundra extends beyond its ecological significance. It plays a crucial role in the global carbon cycle, as the permafrost acts as a massive storehouse for carbon. There are concerns that with global warming, the permafrost may begin to thaw, releasing large amounts of carbon dioxide and methane into the atmosphere, which could accelerate climate change.

Conservation efforts are vital in the tundra, as this biome is particularly vulnerable to the impacts of climate change. The preservation of the tundra is not only important for the species that live there but also for the global climate system and the well-being of the planet as a whole.

In conclusion, the tundra is a vast and important biome that covers about 20% of the Earth's surface. Its unique characteristics and the challenges it faces due to climate change make it a subject of significant interest and concern for environmental scientists and conservationists worldwide.

**

2024-05-23 06:30:49

Ethan Cook

Works at the International Labour Organization, Lives in Geneva, Switzerland.
Located at latitudes 55-- to 70-- North, the tundra is a vast and treeless land which covers about 20% of the Earth's surface, circumnavigating the North pole. It is usually very cold, and the land is pretty stark. Almost all tundras are located in the Northern Hemisphere.
2023-06-08 17:53:18

Scarlett Lee

QuesHub.com delivers expert answers and knowledge to you.
Located at latitudes 55-- to 70-- North, the tundra is a vast and treeless land which covers about 20% of the Earth's surface, circumnavigating the North pole. It is usually very cold, and the land is pretty stark. Almost all tundras are located in the Northern Hemisphere.
ask:3,asku:1,askr:137,askz:21,askd:152,RedisW:0askR:3,askD:0 mz:hit,askU:0,askT:0askA:4