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Table 6 Physical indicators of sites sensitive to forest biomass harvesting

From: Sustainable forest biomass: a review of current residue harvesting guidelines

Jurisdiction Slope (% gradient)b Soil texture Soil depth (cm)
Codea Name
NB New Brunswick   R  < 30
AL Alabama   S  
IN Indiana  > 20%   
MA Massachusetts  > 30% S  < 51
MD Maryland  > 20%, > 40% S  < 51
ME Maine   CoS  < 30
MN Minnesota  > 35% S  < 51
MO Missouri  > 35%    < 51
MS Mississippi  > 35% S (> 60%)  < 60 (A hrzn < 8)
PA Pennsylvania  > 40%   
SC South Carolina  > 30% S (> 80%); R  < 50
VT Vermont  > 20%   
WI Wisconsin   S  < 51
NE-USA Northeast USA   S  
PNW-USAc Pacific Northwest USA Steep   
UK UK   S, skeletal  < 35–45
FR France   S-LS, SL  
NL Netherlands   S  
DK Denmark   S  
FI Finland   R  
LTd Lithuania  > 100%   
  1. aJurisdictions in same order as in Additional file 1: Table ST-1
  2. bSlopes typically reported as gradient (i.e. x/y, or rise-over-run, expressed as x as a percentage of y); no gradient given for PNW-USA (Pacific Northwest USA)
  3. S sand, CoS coarse sand, R rocky or stony, LS loamy sand, SL sandy loam
  4. IN (Indiana) inferred from associated document
  5. cPNW-USA (Pacific Northwest USA): retain >30% of harvest residue on slopes suitable for ground-based harvesting; retain >50% on steeper slopes in the Douglas-fir region
  6. dClearcutting not permitted in LT (Lithuania) on slopes > 45° (= 100% slope)