Connectivity and percolation of structural pore networks in a cultivated silt loam soil quantified by X-ray tomography
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- 作者：Nicholas Jarvis ; nicholas.jarvis@slu.se ; Mats Larsbo ; John Koestel
- 关键词：Percolation ; Connectivity ; Macropore ; X-ray tomography ; Tilled soil
- 刊名：Geoderma
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：287
- 期：Complete
- 页码：71-79
- 全文大小：1686 K
- 卷排序：287
文摘
Percolation concepts describe the connectivity of X-ray imaged macropore networks. A percolation threshold of 4-6% was found for imaged porosity in harrowed soil. The homogenizing effect of harrowing on the structural pore space was quantified. Effects of the finite sample size were noted in the more structured ploughed layer.