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Article for 30 July 2007:Humphreys GS, Wilkinson MT. 2007. The soil production function: A brief history and its rediscovery. Geoderma, 139:73-78. Humphreys and Wilkinson are Australian physical geographers who, in this paper, review the history of an idea which should be central to soil science - what are the controls on soil production? In the ...

Article for 12 March:Dietrich WE & Perron JT 2006. The search for a topographic signature of life. Nature 439:411-419. Dietrich and Perron's article is based on a fascinating thesis - that the existence of life on Earth may imprint a characteristic signature on its landscapes which would not be the same as those seen in life's absence. The ...