BIG pores and LITTLE pores and medium--size pores!
Water tables! Capillary fringe!
http://www.earthdrx.org/poresi...
Grading! Trenching! Raised beds and sunken beds!
Diffusion in air and diffusion in water!
Coarse mixes and slumping, flowing, sticky clay!
Concentration gradients and tortuosity!
Clay plus 10% sand MIGHT be concrete instead of Loamy Sand, but clay plus 40% sand is Sandy Clay!
Blah, blah, blah!!
I was thinking recently that I should bite the bullet and write up an article or three full of opinions. Then I could just post a link instead of consuming electrons and server space. But every few weeks my drainage enthusiasms and focus change.