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Information - SSS30 Advances in 3-D quantification of the soil porous architecture using X-ray Computed Tomography and image analysis techniques
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Event Information |
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X-ray computed tomography is becoming increasingly popular in soil science offering the opportunity to investigate the intact physical properties and in particular soil structure which determines the operating environment for all physical, chemical and biological processes within the soil. Therefore, visualisation and quantification of the porous architecture in both 2-D and 3-D is of great importance for our understanding of many soil functions and can be achieved at different scales from the macro to micro using X-ray computed tomography. For instance, at the microscale, the topology and connectivity of the intra-aggregate pore network as part of soil structure is of crucial importance for microbial processes, the sequestration of organic carbon, water storage and preferential flow. This is greatly associated with processes evolving at the larger scale and there is a need to merge observations from different scales for understanding soil functioning. Linking 3-D quantified data to techniques such as electrical resistivity tomography (ERT) and ground penetrating radar (GPR) is also vital for advancing in modelling soil hydraulic processes in a multi-scale manner.
There is a prominent evolution in X-ray computed tomography equipment and image analysis software, particularly for 2-D analysis, although, volume data processing obtained from radiographs is becoming increasingly demanding for computing and programming resources. Therefore, it is a great opportunity to be informed on the progress of image analysis techniques and advances in software specifically for 3-D analysis that may provide solutions to present difficulties with volume processing.
Contributions to this session are welcomed and encouraged for presenters focusing on the use of X-ray computed tomography in soil science, advances in volume quantification of radiographs and image analysis techniques. Contributions from multi-scale studies and also integrating techniques such as ERT and GPR towards understanding soil functioning are also encouraged.
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