< p > < a href = " https://space.stackexchange.com/a/38999/12102 " >这个答案< / >指出我的维基百科页面< a href = " https://en.wikipedia.org/wiki/Farouk_El-Baz " rel = " nofollow noreferrer " >的Farouk el - baz < / > < a href = " https://en.wikipedia.org/wiki/Farouk_El-Baz # Desert_research_and_theories”rel = " nofollow noreferrer " > < / >沙漠研究和理论分段说:< / p > < blockquote > < p >在过去20年在他波士顿大学的研究中,<强> el - baz已经使用卫星图像更好地理解沙漠地形的起源和演化。他提供证据表明了沙漠不是人造的,但是主要的气候变化的结果。< / >强他的研究发现了大量的黄沙在撒哈拉地区的河流和小溪基于雷达图像的解释。< / p > < p >这些前河道地形导致萧条,他的理论必须包含地下水。他对这些数据的分析导致了地下水的位置和地形的埃及、阿曼、阿拉伯联合酋长国(阿联酋),也许在苏丹达尔富尔(除非它枯竭)。 I was surprised to read that the "origin and evolution of desert landforms" was ever considered to have an anthropocenic component.
Question: When was it ever considered that the desert might be "man-made", or otherwise anthropocenically-induced? Is it possible to know which desert was thought to be man-made that El-Baz proved wasn't? Or does the passage refer to all deserts?