SAMPLE PLOTS IN SILVICULTURAL RESEARCH 



75 



Injury — Continued. Abbrevi- 



Fungus — as for Disease. ation 



Insects — abbreviations for specific names of insects or 

 numerical code. 



Logging L 



Bark raked *_ Lbk 



Basal scar Ls 



Girdled Lg 



Limbs broken Lb 



Top broken out Ltp 



Tree bent over Lo 



Tree uprooted Lx 



Light, see Density of stand. 

 Litter: 



None 



Scant, but uniform cover 



Scant, irregularly distributed 



Complete: 



Less than }{ inch deep 



Yz to 1 inch deep 



1 to 1 x /% inches deep 



V/i to 2 inches deep 



2 to 4 inches deep 



4 to 12 inches deep 



More than 12 inches deep 



Seed crop: 



None 



Scanty 



Moderate (fair) 



Good 



Abundant 



Slash: 



Absent SI 



Scattered Slo 



Light, uniformly distributed Sll 



Light, unevenly distributed Sid 



Medium, uniformly distributed Sim 



Medium, unevenly distributed Slmd 



Heavy, uniformly distributed Slh 



Heavy, unevenly distributed Slhd 



Very heavy, uniformly distributed Slk 



Very heavy, unevenly distributed Slkd 



Piled Sip 



Compact piles: 



Unburned Sip 



Burned Slpb 



Windrows: 



Unburned Slw 



Burned Slwb 



Lopped and scattered Sc 



Swamper burned Swb 



Slope — express in percentage. Record as numeral 1 to 10. 

 Species. Use symbol (as #, °, f), letter, or coded numeral. 

 On a map diameters are shown following the symbol, as #7.3. 

 In most regions, it may be necessary to code all tree species 

 found. Separate lists should be made up for tree species, 

 brush species, and herbaceous cover. 



Thrift T 



Vigorous V 



Medium M 



Poor P 



Very poor PP 



Volume V 



Board feet V-BM 



Cords V-CD 



Cubic feet V-CF 



Table Vt 



Numerical 

 code 







1 



2 

 3 



4 



00 

 10 



11 



12 

 13 

 14 

 15 

 16 

 17 

 18 

 20 



21 

 22 



23 



24 

 25 

 26 



