Sydney Institute of Agriculture & School of Life & Environmental Sciences, The University of Sydney, NSW 2006, Australia; Corresponding author.
Alfred E. Hartemink
Department of Soil Science, University of Wisconsin-Madison, 1525, Observatory Dr, Madison, WI, 53706, USA
Two new brief definitions of soil are proposed to improve soil understanding among the general populous and to enhance soil connectivity. One definition is “The layered material at the earth's surface, which has resulted from chemical and biological processes and physical organisation of minerals and organic matter, and which supports terrestrial ecosystems and humanity.”