What is desertification explain?

Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid.

What is an example of desertification?

What is Desertification? … Additional savannas, grasslands, and woodlands are common indications of desertification in arid and semi-arid areas. Well-known examples of this occurrence include, Europe’s Adriatic Sea, the Middle-East’s Saharan desert, and China’s Taklamakhan Desert.

What is desertification caused by?

‘Climatic variations’ and ‘Human activities’ can be regarded as the two main causes of desertification. removal of the natural vegetation cover（by taking too much fuel wood）, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.

What is desertification Class 9?

Desertification is a process of degradation of the land. Desertification is the degradation process by which a fertile land changes itself into a desert by losing its flora and fauna, this can be caused by drought, deforestation, climate change, human activities, or improper agriculture.

What is desertification BYJU’s?

Desertification is a type of land degradation in which a relatively dry area of land becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife .[ It is caused by a variety of factors, such as through climate change (particularly the current global warming)and through the …

Is desertification a bad thing?

CONSEQUENCES OF DESERTIFICATION

Loss of biodiversity by worsening the living conditions of many species. Food insecurity due to crop failure or reduced yields. The loss of vegetation cover and therefore of food for livestock and humans. Increased risk of zoonotic diseases, such as COVID-19.

What are the effects of desertification on humans?

higher threats of malnutrition from reduced food and water supplies; more water- and food-borne diseases that result from poor hygiene and a lack of clean water; respiratory diseases caused by atmospheric dust from wind erosion and other air pollutants; the spread of infectious diseases as populations migrate.

What are the effects of desertification in Africa?

The degradation of drylands in Africa is forcing people who can no longer make a living off the land to move to urban areas. According to the UN Population Division, the population of Lagos, Nigeria, will grow from 13.4 million in 2000 to 23.2 million in 2015, partly due to an influx of displaced rural communities.

Where is desertification in Africa?

Practically every country of Africa is prone to desertification, but the Sahelian countries at the southern fringe of the Sahara are particularly vulnerable. Only about 19% of Niger is non-desert and of this 17% belongs to high and very high vulnerability classes.

Which countries are most affected by desertification?

Africa is the continent most affected by desertification, and one of the most obvious natural borders on the landmass is the southern edge of the Sahara desert. The countries that lie on the edge of the Sahara are among the poorest in the world, and they are subject to periodic droughts that devastate their peoples.

Where is desertification occurring today?

A recently published JRC study identified the following geographic regions as prone to desertification: north-eastern Brazil, south-western Argentina, the southern Sahel, Zambia and Zimbabwe, Sub-Himalayan India, and north-eastern China.

What is Nigeria doing about desertification?

Nigeria, where about 35 per cent of the total land area was affected by desertification by 2015, has rehabilitated over 1,558.62 hectare (ha) of degraded land and lifted more than 8,000 people out of poverty, through a World Bank project aimed at reducing vulnerability to soil erosion.

Why is farming so difficult in the Sahel?

The Sahel is a semi-arid transition zone in the agro-climatic zone south of the Sahara Desert and north of the wetter North Sudanian region. … Rainfall—or more specifically, the absence of significant rainfall—is a significant challenge for farmers in the Sahel. Droughts periodically cause severely reduced crop yields.

What is the difference between Sahel and Sahara?

Distinguish between Sahel and Sahara.
…
Solution.
Sahel Sahara
The Sahel means border or margin Largest hot desert in the world.

What countries are affected by desertification in Africa?

This situation is acute in Somalia, Ethiopia, Djibouti and Kenya, where the combination of weak governments and a lack of annual rains linked to climate change are driving desertification levels.

What has no countries no currency and no population?

Antarctica is the only continent that lacks any countries.

Which one is the biggest country in Africa?

Algeria
Algeria is the biggest country in Africa. Exceeding 2.38 million square kilometers as of 2020, Algeria is the African country with the largest area.
…
Countries in Africa as of 2020, by area (in square kilometers)
Characteristic Area in square kilometers
Algeria 2,381,741
Democratic Republic of the Congo 2,344,858

What continent has no countries or cities?

Antarctica
Antarctica is a unique continent in that it does not have a native population. There are no countries in Antarctica, although seven nations claim different parts of it: New Zealand, Australia, France, Norway, the United Kingdom, Chile, and Argentina.

Is India bigger than Europe?

Europe is 3.10 times as big as India.

Which is richest continent in the world?

Asia
List by the International Monetary Fund (2021 estimate)
Rank Continent GDP (billions of current Int$)
World 144,636
1 Asia 68,584
2 Europe 31,443
3 North America 28,724

Which country is smallest in the world?

Vatican City
Based on landmass, Vatican City is the smallest country in the world, measuring just 0.2 square miles, almost 120 times smaller than the island of Manhattan. Situated on the western bank of the Tiber River, Vatican City’s 2-mile border is landlocked by Italy.

Is China bigger than India?

China is about 2.9 times bigger than India.

India is approximately 3,287,263 sq km, while China is approximately 9,596,960 sq km, making China 192% larger than India. Meanwhile, the population of India is ~1.3 billion people (67.9 million more people live in China).