PERMFILE104484

• Permit No: M1991078
• IBM Index Class Name: Permit File
• Doc Date: 7/1/1991
• Doc Name: LIMITED IMPACT OPERATION 110 2 RECLAMATION PERMIT APPLICATION FORM
• Media Type: D
• Archive: No

CO-CPA-1
4/82 • ~ EXH~T B1(2 of 4)
(180-12-11) -7-
CAPABILITY GROUPS OF SOILS
Capability classification is the grouping of soils to show, in a
general way, their suitability for moat kinds of farming. It is a
practical classification based on limitations of the soils, the risk
of damage when they are used, and the way they respond to treatment.
The soils are classified according to, degree and kind of permanent
limitation, but without consideration of major and generally expensive
landformfng that would change the .slope, depth, or other oharaoteris-
tics of the soils; .and without consideration ,of possible but unlikely
major reclamation projeota.
Roman numerals are used to show the 8 broad Capability Claesea and
letters follow .the.olasa numeral.to indioate the principal problem or
hazard. Classes and sub-olassea.used are as follows:
Class I - Few or no limitations that restriot choice of Fropa or
re.Quire conservation measures.
Class II - Some limitations that reduce the choice oY crops or require
moderate conservation measures.
Class III - Severe limitations that reduce choice of crops, require
special conservation practices, or both.
Class IV - Very severe limitations that restrict the choice of crops,
require very careful management, or both.
Class V - Not suited for cultivation but has few or no hazards when
used for pasture, range, woodland or wildlife.
Class VI - Not suited for cultivation. Severe limitations. Suited
for range, pasture, woodland or wildlife with careful management and
needed conservation practices.
Class VII - Not suited Yor cultivation. Very severe limitations.
Suited for range, woodland or wildlife urea if carefully managed.
Usually cannot apply physical praotices such as pitting, furrowing,
seeding, etc.
Class VIII - Not suited 'f or cultivation, range, pasture or woodland.
Suited only..for recreation, wildlife, water supply or aesthetic
purposes. ..
e - Erosion by wind or water is the major problem.
w - Excessive water such as wetness, overflow, or high water table.
s - Major problem is in the soil. It may be too shallow, too heavy,
stony, low in fertility, salty, alkaline or have low moisture
capacity.
c - Climate is the major hazard. Growing season may be very short,
there is a shortage of rainfall, or both.
Examples:
IIIe - Class III land where erosion ie the major hazard.
IVc - Class IV land where the olimate is the major hazard.