Soil Micro Morphology Flashcards
1
Q
Dynamic soil properties
A
Soil moisture, soil temperature. Require direct measurements, seasonal and diurinal.. Soil taxonomy uses climatic data
2
Q
Soil temperature regime/mean annual soil temperature
A
MAST>22C citrus
>15C cotton
>8C corn and grain
3
Q
USA MAST
A
Mean annual air tenp+1
4
Q
Tropics MAST
A
Maat+2.5
5
Q
A
Iso
6
Q
Uses
A
Soil genesis studies, contaminants, soil-plant relationships, effect of no till, animals, soil structure
7
Q
A
Frigid
8
Q
8-15C seasonal variattion
A
Mesic
9
Q
15-22 C seasonal variation
A
Thermic
10
Q
22 or higher C seasonal variatin
A
Hyperthermic
11
Q
Same dor iso’s
A
Gelic is lower than 1 C
