Quantification of soil shrinkage in 2D by digital image processing of soil surface

Baumgartl, 2000, Internal and external stresses affecting the water retention curve, 3 Brasher, 1966, Use of Saran Resin to coat natural soil clods for bulk density and moisture retention measurements, Soil Sci., 101, 108, 10.1097/00010694-196602000-00006 Braudeau, 1999, New device and method for soil shrinkage curve measurement and characterization, Soil Sci. Soc. Am. J., 63, 525, 10.2136/sssaj1999.03615995006300030015x Bronswijk, 1990, Shrinkage geometry of a heavy clay soil at various stresses, Soil Sci. Soc. Am. J., 54, 1500, 10.2136/sssaj1990.03615995005400050048x Dasog, 1993, Dimension and volume of cracks in a Vertisol under different crop covers, Soil Sci., 156, 424, 10.1097/00010694-199312000-00007 Dowdy, 1998, Automated image analyses for separating plant roots from soil debris elutriated from soil cores, Plant Soil, 200, 91, 10.1023/A:1004370627069 Gantzer, 2002, Computed tomographic measurement of macroporosity in chisel-disk and no-tillage seedbeds, Soil Till. Res., 64, 101, 10.1016/S0167-1987(01)00248-3 Garnier, 1997, Determining the hydraulic properties of a swelling soil from a transient evaporation experiment, Soil Sci. Soc. Am. J., 61, 1555, 10.2136/sssaj1997.03615995006100060003x Hillel, 1998 Horn, 2003, Effect of repeated tractor wheeling on stress/strain properties and consequences on physical properties in structural arable soils, Soil Till. Res., 73, 101, 10.1016/S0167-1987(03)00103-X Kutílek, 1994 Liu, 2003, Water infiltration rate in cracked paddy soil, Geoderma, 117, 169, 10.1016/S0016-7061(03)00165-4 Ogawa, 1999, Surface fractal characteristics of preferential flow patterns in field soils: evaluation and effect of image processing, Geoderma, 88, 109, 10.1016/S0016-7061(98)00101-3 Peng, 2005, Modeling soil shrinkage curve across a wide range of soil types, Soil Sci. Soc. Am. J., 69, 584, 10.2136/sssaj2004.0146 Ringrose-Voase, 1996, A method for measuring the development of surface cracks in soils: application to crack development after lowland rice, Geoderma, 71, 245, 10.1016/0016-7061(96)00008-0 Scioncorp, 2000. Scion Image Manual. www.scioncorp.com Velde, 1999, Structure of surface cracks in soils and muds, Geoderma, 93, 101, 10.1016/S0016-7061(99)00047-6 Vogel, 1997, Morphological determination of pore connectivity as a function of pore size using serial sections, Eur. J. Soil Sci., 48, 365, 10.1046/j.1365-2389.1997.00096.x