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. 2014 Sep 5;4:122. doi: 10.3389/fcimb.2014.00122

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Copyright © 2014 Ibekwe, Ma, Crowley, Yang, Johnson, Petrossian and Lum.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Network colored by soil physical property concentrations-(A) sand, (B) clay, (C) silt, (D) pH, (E) bulk density. The legend below the figures shows ranges in concentrations of some of the soil physical properties. The distance metric and filters are as shown in the legend of Figure 1.