Stones and wood
Tufa moss rock
Tufa is a soft, pitted limestone that soaks up water, and moss grows on it well.
What the simulation uses
- Holds water
- 22.5 % by volume
- Water it keeps after draining; the rest runs down to the drainage.
- Pore space
- 40 % by volume
- Room for air and water between grains; low means roots suffocate when wet.
- Weight
- 1400 g/L
- How heavy a litre is.
- pH
- 7.5 to 8.2 pH
- How acid it keeps the soil.
Description
Tufa is a soft, pitted limestone that soaks up water, and moss grows on it well. Being limestone, it nudges pH up toward alkaline.
Also called tufa.
Estimated, where sources were thin: look authored for the app; physical values estimated.