70 CIRCULAR 3 3 3, U.S. DEPARTMENT OF AGRICULTURE 



RS Form 279 



PHYSICAL SURVEY 



DESCRIPTION OF : Observation Point Q Limited Area □, Tree Environ- 

 ment □. 



Purpose of plot 



Station No Area involved 



Forest type Absolute elevation 



Permanent sample plot No Block No 



Forest Nearest P.O 



County State Drainage 



Legal Loc Exact Loc. 1 



TOPOGRAPHIC FEATURES 



Gen. char 



Aspect Gradient 



Distance from ridge Distance from channel 



Elevation above water Wind exposure 



Air drainage conditions .__. 



Elevation of horizon to east ; west ; north ; south. 



FOREST ENVIRONMENT 



History , 



Distance of nearest trees to north : east ; south ; west. 



Age of trees 2 



Height 2 , 



Diameter 3 



Trees per acre 2 



Stand, ft. B.M. 3 



Stand, cu. ft 



Basal area, sq. ft 



Growth rate in height, diam., or cu. ft. per A 



Site quality 



Shading, amount From trees on 



Light at the ground, percent Determined by 



Summary of conditions affecting reproduction, 4 not elsewhere mentioned 



Size, growth, vigor, and reproductive capacity, injuries, etc. 



SOIL CHARACTER AND MOISTURE SUPPLY 



Depth of litter Character 



Depth of humus Surface moisture 



Penetration of humus in mineral soil as shown by color, inches 



Char, subsoil, distinguished from soil 



Total depth of soil permeable to roots, inches 



Amount and kind of rock fragments in soil 



Char, impermeable substratum 



Origin (in situ, colluvial, alluvial, or eolian, and from what rocks). 



Composition and class (after analysis) 



Drainage Present moisture. 



Observer. 

 Date 



1 Sketch on back of sheet. 4 Give complete list of vegetation on back 



2 Describe separately for each species or of sheet. 



crown class, or both. s Description of special tree only. 



3 Give also volume table or scale used, 

 and top diameter utilization. 



(OVER) 



