Talk:Desert

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Semi-protected edit request on 24 August 2016[edit]


In the article Desert / Biogeography <https://en.wikipedia.org/wiki/Desert#Biogeography> it is stated that "Cacti are restricted to North America", which is not correct as they are also present in South America <https://en.wikipedia.org/wiki/Cactus#Distribution>.

I would suggest something like "Cacti are present in both North and South America, with a post-Gondwana origin". I am not a cactus specialist, but the error is evident. 200.199.130.68 (talk) 18:20, 24 August 2016 (UTC)

 Done Updated. -- Dane2007 talk 21:29, 26 August 2016 (UTC)

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Edit request: Expansion of one sentence for clarity.[edit]

Regarding the first clause of the last sentence under Human Relations --> History:

Overgrazing is still considered a cause of desertification. The reference is a TED Talk whose presenter is distinguishing between that and "adequate" grazing. He argues that undergrazing is also a problem (though he doesn't say it in those words) because herds are needed to flatten tall grasses, which encourages "biological decay" (as opposed to oxidative decomposition) and creates a microclimate underneath, regulating temperature and retaining moisture. This results in new grassland growth next season, as opposed to favoring woody plants and leaving soil bare. (This was all in the TED Talk.)

All that to suggest my edit: "Although overgrazing is still considered to be a cause of desertification, there is some evidence that "planned grazing", actively managed with livestock, actually improves vegetation cover and land fertility and production. Livestock reduction or removal may actually encourage erosive processes."

2001:569:7466:DA00:CD28:BED8:7121:5F66 (talk) 03:34, 22 November 2017 (UTC)

Many thanks. You'd be right, but we shouldn't really be using TED talks as sources anyway, they're just people's opinions, and this one is certainly controversial and would need far more solid evidence, so I've removed it. Better sources are already used just above that passage giving the main points. Chiswick Chap (talk) 12:39, 9 December 2017 (UTC)