﻿34 
  WORKING 
  PLAN 
  FOR 
  FOREST 
  LANDS 
  NEAR 
  PINE 
  BLUFF, 
  ARK. 
  

  

  that 
  under 
  certain 
  conditions 
  it 
  can 
  tolerate 
  a 
  greater 
  amount 
  of 
  shade 
  

   during 
  youth; 
  where 
  the 
  soil 
  conditions 
  are 
  favorable, 
  Loblolly 
  seed- 
  

   lings 
  will 
  come 
  up 
  under 
  an 
  amount 
  of 
  shade 
  from 
  the 
  hardwoods 
  

   which 
  Shortleaf 
  seedlings 
  would 
  not 
  be 
  able 
  to 
  withstand. 
  Neverthe- 
  

   less, 
  the 
  Loblolly, 
  like 
  the 
  Shortleaf, 
  develops 
  to 
  best 
  advantage 
  under 
  

   direct, 
  open 
  sunlight. 
  

  

  When 
  25 
  or 
  30 
  years 
  of 
  age 
  this 
  species 
  begins 
  to 
  produce 
  seed 
  

   abundantly, 
  and, 
  when 
  conditions 
  are 
  favorable, 
  the 
  reproduction 
  is 
  

   equal 
  if 
  not 
  superior 
  to 
  that 
  of 
  the 
  Shortleaf. 
  Here, 
  again, 
  the 
  young 
  

   growth 
  nourishes 
  best 
  in 
  old 
  fields, 
  and 
  the 
  thickets 
  and 
  pole 
  forests 
  

   of 
  Lobloll} 
  T 
  on 
  such 
  ground 
  are 
  similar 
  in 
  every 
  respect 
  to 
  those 
  

   described 
  for 
  Shortleaf 
  Pine. 
  The 
  question 
  as 
  to 
  whether 
  Loblolly 
  or 
  

   Shortleaf 
  will 
  predominate 
  on 
  old 
  fields 
  depends 
  largely 
  on 
  which 
  

   species 
  the 
  locality 
  is 
  best 
  adapted 
  to. 
  When 
  conditions 
  of 
  soil 
  are 
  

   equally 
  favorable 
  to 
  both 
  species 
  the 
  Loblolly 
  will 
  generally 
  win 
  on 
  

   account 
  of 
  its 
  faster 
  growth. 
  But 
  on 
  very 
  poor, 
  dry 
  ridge 
  land 
  the 
  

   Shortleaf 
  has 
  the 
  best 
  of 
  it. 
  Very 
  rarely 
  indeed 
  do 
  the 
  two 
  species 
  

   grow 
  up 
  into 
  a 
  forest 
  where 
  each 
  is 
  equally 
  represented; 
  one 
  or 
  the 
  

   other 
  will 
  generally 
  predominate 
  largely 
  in 
  the 
  end. 
  

  

  In 
  the 
  forest 
  the 
  best 
  reproduction 
  of 
  Loblolly 
  Pine 
  is 
  on 
  the 
  pine 
  

   flats, 
  because 
  on 
  them 
  the 
  mature 
  trees 
  are 
  much 
  more 
  numerous. 
  

   Here 
  the 
  young 
  growth 
  is 
  usually 
  found 
  in 
  large 
  or 
  small 
  groups, 
  

   always 
  making 
  for 
  the 
  open 
  spaces, 
  where 
  there 
  are 
  any. 
  The 
  repro- 
  

   duction 
  is 
  in 
  general 
  much 
  better 
  than 
  that 
  of 
  Shortleaf, 
  on 
  account 
  of 
  

   the 
  greater 
  tolerance 
  of 
  the 
  Loblolly, 
  and 
  because 
  of 
  the 
  smaller 
  per- 
  

   centage 
  of 
  hardwoods 
  in 
  mixture 
  where 
  the 
  reproduction 
  of 
  this 
  species 
  

   occurs. 
  As 
  might 
  be 
  expected 
  from 
  its 
  greater 
  tolerance, 
  Loblolly 
  

   gradually 
  gains 
  the 
  upper 
  hand 
  over 
  Shortleaf 
  where 
  the 
  former 
  has 
  

   an 
  equal 
  chance. 
  It 
  must 
  be 
  remembered, 
  however, 
  that 
  the 
  number 
  

   of 
  seed-bearing 
  Shortleaf 
  Pine 
  is 
  far 
  greater 
  than 
  that 
  of 
  the 
  Loblolly, 
  

   and 
  hence 
  the 
  latter 
  species 
  is 
  at 
  a 
  great 
  disadvantage. 
  Nevertheless, 
  

   the 
  percentage 
  of 
  Loblolly 
  is 
  gradually 
  increasing. 
  

  

  Occurrence. 
  — 
  Loblolly 
  occurs 
  mostly 
  in 
  large 
  groups, 
  although 
  

   occurrence 
  by 
  single 
  trees 
  is 
  not 
  at 
  all 
  uncommon. 
  These 
  large 
  groups 
  

   often 
  have 
  the 
  appearance 
  of 
  miniature 
  pure 
  forests, 
  as 
  the 
  percentage 
  

   of 
  hardwoods 
  in 
  mixture 
  is 
  small. 
  If 
  fire 
  is 
  kept 
  out. 
  the 
  forest 
  of 
  the 
  

   future 
  should 
  consist 
  of 
  much 
  larger 
  groups, 
  and 
  it 
  can 
  even 
  be 
  

   expected 
  that 
  over 
  considerable 
  areas 
  the 
  Loblolly 
  will 
  completely 
  

   supplant 
  the 
  hardwoods 
  and 
  form 
  very 
  valuable 
  stands 
  of 
  pure 
  pine. 
  

  

  Development. 
  — 
  Under 
  favorable 
  conditions 
  this 
  species 
  produces 
  a 
  

   long, 
  straight 
  bole, 
  free 
  from 
  branches 
  to 
  a 
  height 
  of 
  50 
  or 
  60 
  feet 
  

   from 
  the 
  ground, 
  and 
  has 
  a 
  thin 
  and 
  irregular 
  crown. 
  Its 
  percentage 
  

   of 
  sapwood 
  is 
  greater 
  than 
  that 
  of 
  the 
  latter 
  species, 
  as 
  the 
  table 
  

   following 
  shows. 
  

  

  