Soil Vocab Flashcards
1
Q
humus
A
sticky, brown, insoluble residue from partially decomposed organisms
2
Q
topsoil
A
A horizon, mineral particles mixed with organic material, under surface litter
3
Q
subsoil
A
B horizon, accumulated clays and nutrients, sometimes develops hardpan layer
4
Q
sheet eroision
A
thin layer taken off land surface
5
Q
rill erosion
A
little rivulets of running water cut small channels in soil
6
Q
water logging
A
soil saturated with water, kills plants from lack of oxygen
7
Q
salinization
A
mineral salts accumulate in soil, saline irrigation
8
Q
soil fertility
A
capacity to supply nutrients for plant growth
9
Q
infiltration
A
water through soil
