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We have a HYPROP and WP4C. What challenges can we expect with analyzing high-clay vertisol soils?

 

This is a really good question. One of the main issues you will see with the high clay vertisols will be the shrinking of the samples during the measurements. You shouldn’t have too much of an issue with contact during the measurement. Due to the volume change during the measurement, the VWC measured by the HYPROP won’t correlate well with the actual change in volume. The VWC and bulk density will be based on the saturated volume and density of the soil samples. One way to approach this is to convert to gravimetric water contents.

 

 

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