Erosion
The word erosion indicates the slow disintegration of the soil due to the action of agents such as the rain, run-off water (rain water that runs on the land surface), and the wind. Erosion is a natural process that depends on several factors like the topographic configuration of the interested area, the soil composition and structure (in particular, its granulometry), the climate (in particular as far as precipitations are concerned), and the state of its vegetation cover. Some human activities, such as intensive agriculture, deforestation, intensive animal farming, and the use of inefficient or inadequate irrigation systems, accelerate or intensify the erosive process.
Special reports
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13 May 2013
Small steps, great footprints
Have you ever wondered how much space is taken up by an apple or a steak?...
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28 August 2020
The Earth seen from above: signs of fires
This image was taken by the ASTER sensor installed on the NASA TERRA satellite platform. The image was taken on…
15 July 2020
Earth viewed from above
Remote satellite sensing: what it is and what it is used for In the scientific field, the images produced by…
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30 April 2019
Urban woods
When walking along a tree-lined avenue in a crowded and traffic-congested city, wrapped up in our daily commitments, we do…
12 April 2019
Easter with extinct friends
Easter Island is shaped like a triangle with three extinct volcanoes placed at the vertices, and has a total area…
26 September 2018
Citizen science, research conducted by ordinary citizens
When we think of scientists, we often imagine people wearing white coats, shut up in a laboratory working with test…
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13 May 2013
Small steps, great footprints
Have you ever wondered how much space is taken up by an apple or a steak?...
-
28 August 2020
The Earth seen from above: signs of fires
This image was taken by the ASTER sensor installed on the NASA TERRA satellite platform. The image was taken on…
15 July 2020
Earth viewed from above
Remote satellite sensing: what it is and what it is used for In the scientific field, the images produced by…
-
13 May 2013
Small steps, great footprints
Have you ever wondered how much space is taken up by an apple or a steak?...
From the Multimedia section
Facts
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Laterite and bauxite deposits
These deposits can be observed in those tropical areas that are characterized by...
And in underground tunnels?
There are groups of terrestrial animals that eat insects, worms and other invertebrates...
What about the permafrost?
In Sub Arctic Swedish regions, some scientists studied the changes of permafrost...
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The most populated cities in the world
In the last 50 years the world population has passed from 2.5 billion to 6 billion...
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Mountains on the Earth
The different landscapes that we analysed in the previous section are distributed...
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24 February 2011
Laterite and bauxite deposits
These deposits can be observed in those tropical areas that are characterized by...
And in underground tunnels?
There are groups of terrestrial animals that eat insects, worms and other invertebrates...
-
What about the permafrost?
In Sub Arctic Swedish regions, some scientists studied the changes of permafrost...
-
The most populated cities in the world
In the last 50 years the world population has passed from 2.5 billion to 6 billion...
-
24 February 2011
Laterite and bauxite deposits
These deposits can be observed in those tropical areas that are characterized by...
-
And in underground tunnels?
There are groups of terrestrial animals that eat insects, worms and other invertebrates...
-
What about the permafrost?
In Sub Arctic Swedish regions, some scientists studied the changes of permafrost...