Photos Illustrating Expected Thinning Results:

Residual basal area for the remaining stand after thinning should average around 60 sq. ft. of basal area per acre.

60 square foot basal area per acre: that number of trees that's cross sectional trunk area covers 60 square feet. Therefore, if a property has trees with a trunk cross sectional area of about 1 square foot per tree, then about 60 trees will remain after the treatment per acre. If the property has trees with an average of 2 square foot cross sectional area per tree, then about 30 trees will remain after treatment per acre. The number of trees is dependent upon the size of the trees - bigger trees need more space and are more valuable, - smaller trees need less space, are less valuable, and can contribute to hazardous fuel loading and ladder fuels, but the land can support more of them.

The following three photos are of Pinon areas thinned to 60 sq. ft. of basal area per acre.

 

Mixed Coniferr 210 sq. ft. of basal area per acre.                     60 sq. ft. of basal area per acre.

 

Pinon and Juniper              Before Thinning                                    50 sq. ft. of basal area per acre.

 

40 sq. ft. of basal area per acre.                    50 sq. ft. of basal area per acre. Ponderosa Pine 100 sq. ft. of basal area per acre.                  200 sq. ft. of basal area per acre.

 

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