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> As a result, Iceland is a case study in desertification, with little or no vegetation, though the problem is not heat or drought. About 40 percent of the country is desert, Dr. Halldorsson said. “But there’s plenty of rainfall — we call it ‘wet desert.’”

At first I thought it was an error to call an area that gets plenty of rain a desert. I thought desert was strictly defined by the amount of rainfall. But maybe that's not correct. The wikipedia article on desert states...

"Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location." [1]

I wonder if there's a stricter definition used in a specific scientific context.

[1] https://en.wikipedia.org/wiki/Desert



The soil type in iceland has volcanic parent material with very high carbon content that results in a low nitrogen to carbon ratio so has little nutrients available to support biomass production without adjustments.


The etymology of the word (think deserted island) would imply it has more to do with the lack of life than the reason for a lack of life.


Etymology of desert:

from Latin desertus, from desero (“abandon”)

From dē- (“away, from”) +‎ serō (“I bind, join”).

From Proto-Italic sizō, from Proto-Indo-European si-sh₁-, the reduplicated present of *seh₁- (“to sow”).

https://en.wiktionary.org/wiki/desert#Etymology_3

https://en.wiktionary.org/wiki/desero#Latin

https://en.wiktionary.org/wiki/sero#Latin


Right. That's the sense (solitude) of "desert" in Tacitus's famous quip about the Romans: "they make a desert and call it peace".


In verb and adjective form anything can be deserted, a husband deserting his wife, a deserted village.

In noun form I've heard of things like food deserts to describe urban area without grocery or restaurants. Also places like Antartica are sometimes described as deserts. Also ocean deserts to describe areas without fish.


Antarctica is a desert by the strict "low precipitation" definition. The Dry Valleys are some of the driest places on Earth.


There is a very famous race series for runners called the 4 Deserts. One race, called the Last Desert, takes place in Antarctica. It may surprise you, like it did me - in fact blew my mind - to learn Antarctica is the largest desert in the World.


Antarctica also has the McMurdo dry valleys with no snow or ice.

https://www.atlasobscura.com/places/mcmurdo-dry-valleys


But Antarctica is dry, while Iceland is wet.


So I suppose almost every planet in the galaxy is a desert planet.




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