Nav: Home

Global erosivity map shows differences between climatic regions

July 05, 2017

Soil is our most important source of food. And yet, much of the world's soils are being eroded faster than they are formed.

The capacity of rain to cause soil erosion is known as erosivity. Soil erosion by water is the most serious cause of soil degradation globally. Heavy rainfall and extreme weather events aggravated by climate change increase soil erosion, which ultimately impacts on economies and people's lives.

Lack of data on rainfall erosivity patterns across the planet hampers the implementation of effective soil degradation mitigation and restoration strategies.

Responding to this shortcoming, the JRC has collected data on rainfall erosivity from 3 625 meteorological stations in 63 countries to establish the first ever Global Rainfall Erosivity Database (GloReDa) and a global erosivity map which illustrates the differences between climatic regions.

The highest rainfall erosivity is found in South America (especially around the Amazon Basin) and the Caribbean countries, Central Africa and parts of Western Africa and South East Asia. The lowest values are in mid- and high-latitude regions such as Canada, the Russian Federation, northern Europe, northern Africa, the Middle East and southern Australia.

It should be noted that high rainfall erosivity does not necessarily mean high levels of erosion, as factors such as soil characteristics, vegetative cover and land use also have an important impact on soil erosion.

The new global erosivity map is a critical input to global and continental assessments of soil erosion by water, flood risk and natural hazard prevention. It provides an important dataset for soil experts and policy makers for raising awareness on the importance of healthy soil for healthy life and for achieving the UN's Sustainable Development Goals.

The map is publicly available and can also be used by other research groups to perform national, continental and global soil erosion modelling.
-end-
The Global Rainfall Erosivity Database (GloREDa) can be downloaded for free from the European Soil Data Centre (ESDAC) website.

Links:

Global rainfall erosivity assessment based on high-temporal resolution rainfall records

http://www.nature.com/articles/s41598-017-04282-8

Global Rainfall Erosivity Database (GloREDa) http://esdac.jrc.ec.europa.eu/content/global-rainfall-erosivity

European Commission Joint Research Centre

Related Erosion Articles:

Landscape-scale erosion instabilities in the northern Gabilan Mesa, California
If you ever fly from L.A. to San Francisco, California, you may notice the Gabilan Mesa off to the east as you begin your descent into San Francisco International Airport.
Pasture management and riparian buffers reduce erosion
A 12-year study was completed in Arkansas watersheds.
More than 100 years of flooding and erosion in 1 event
Sara Rathburn of Colorado State University and colleagues have developed an integrated sediment, wood, and organic carbon budget for North St.
Studying midwest soil production, erosion and human impacts
Larsen and colleagues will study Midwest soils where remnants of the native prairie still exist, specifically in Iowa, Illinois, Minnesota, Nebraska and South Dakota.
Research assesses impact of soil erosion on land and communities in East Africa
The impact of soil erosion on both the environmental and social well-being of communities in East Africa is to be explored in new research led by the University of Plymouth.
New study shows ocean acidification accelerates erosion of coral reefs
Scientists studying naturally high carbon dioxide coral reefs in Papua New Guinea found that erosion of essential habitat is accelerated in these highly acidified waters, even as coral growth continues to slow.
Deepwater Horizon oil spill caused widespread marsh erosion
Marsh erosion caused by the 2010 Deepwater Horizon oil spill was widespread, a new study of 103 Gulf Coast sites reveals.
New insights on the relationship between erosion and tectonics in the Himalayas
Can processes unfolding at the Earth's surface be strong enough to influence tectonics?
Huge time-lag between erosion and mountain building
An unprecedented record of erosion rates dating back millions of years shows a significant time-lag between tectonic uplift and maximum erosion rates in the Argentine Precordillera mountains.
Beach replenishment helps protect against storm erosion during El Niño
Sand added to three San Diego County beaches in 2012 has partially remained, surviving the large waves of the El Niño winter of 2015-16.

Related Erosion Reading:

Erosion: Changing Earth's Surface (Amazing Science)
by Robin Koontz (Author), Matthew Harrad (Illustrator)

Did you know that rain, waves, wind, snow, and ice can change the shape of Earth’s surface? They can create valleys, sea stacks, caves, and rock arches. Learn about the natural forces of erosion and how they shape the land. View Details


Cracking Up: A Story About Erosion (Science Works)
by Jacqui Bailey (Author), Matthew Lilly (Illustrator)

Describes the process of erosion and how water, ice, wind, and sun wear away at Earth's surface. View Details


Weathering and Erosion (Science Readers: Content and Literacy)
by Torrey Maloof (Author)

The Earth's surface is always changing. Learn how weathering and erosion constantly reshapes the earth through wind, water, and more! Even people can drastically change the earth's surface. With the help of easy-to-read text and bright, colorful images, this reader simplifies challenging scientific topics while keeping students engaged from cover to cover. This reader also includes instructions for an engaging science activity where students can see what happens when land erodes. A helpful glossary and index are also included for additional support. View Details


Erosion (Reading Essentials in Science)
by Virginia Castleman (Author)

Earth is changing every day as a result of erosion, and weather plays a major part. View Details


Erosion and Weathering (Rocks: The Hard Facts)
by Willa Dee (Author)

Discusses the different causes of erosion and weathering, how these phenomena create problems for people, and their role in the rock cycle. View Details


Erosion (Let's Explore Science)
by Shirley Duke (Author)

Examines the different forces of erosion, such as wind, waves, acid rain, and glaciers and explains how those forces affect the topography of the earth. View Details


Dirt: The Erosion of Civilizations
by David R. Montgomery (Author)

Dirt, soil, call it what you want―it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are―and have long been―using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough... View Details


Soil Erosion and How to Prevent It (Everybody Digs Soil)
by Natalie Hyde (Author)

Looks at the processes of weathering, erosion, and deposition, and how they affect plant and animal life. View Details


Erosion: The Psychopathology of Self-Criticism
by Golan Shahar (Author)

Self-criticism is a personality trait that has been implicated in a wide range of psychopathologies and developmental arrests. Defined as the tendency to set unrealistically high standards for one's self and to adopt a punitive stance towards the self once these standards are not met, self-criticism is both active and cyclical. Self-critics actively create the social-interpersonal conditions that generate their distress, and their distress itself exacerbates self-criticism.

Erosion offers a comprehensive treatment of self-criticism based in philosophy, developmental science,... View Details


Erosion (Princeton Series of Contemporary Poets)
by Jorie Graham (Author)

From Erosion:
SAN SEPOLCRO


Jorie Graham
?


. . . . How clean
the mind is,
holy grave. It is this girl
by Piero
della Francesca, unbuttoning
her blue dress,
her mantle of weather,
to go into
labor. Come, we can go in.
It is before
the birth of god. No-one
has risen yet
to the museums, to the assembly
line bodies
and wings to the open air
market. This is
what the living do: go in.
It's a long way.
And the dress keeps opening
from eternity
to privacy, quickening.
Inside, at... View Details

Best Science Podcasts 2018

We have hand picked the best science podcasts for 2018. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Attention Please
In an age of constant information and infinite distractions, how can we pay more attention to our ... attention? This hour, TED speakers explore the battle for our awareness during the digital age. Guests include sociologist Zeynep Tufekci, podcast host Manoush Zomorodi, neuroscientist Amishi Jha, designer Tristan Harris, and computer scientist Jaron Lanier.
Now Playing: Science for the People

#475 Mother Nature is Trying to Kill You (Rebroadcast)
This week, we're learning how deadly and delightful our planet and its ecosystem can be. We're joined by biologist Dan Riskin, co-host of Discovery Canada's Daily Planet, to talk about his book "Mother Nature Is Trying to Kill You: a Lively Tour Through the Dark Side of the Natural World." And we'll talk to astronomer and author Phil Plait about Science Getaways, his company that offers educational vacation experiences for science lovers.