. Bulletin (Pennsylvania Department of Forests and Waters), no. 46-50. Forests and forestry. 40 TiiK Bi:i:(Ii-P)IH(ii-Mai'lk Fokkst Type in I^exnsviaaxia si(lora})lv iiicTCiisiMl. The volume in cubic feet for fullv-stoeked staii Is of M <j:iv('Ji a<i(' Jind site varies eoiisiderahly with the proportion of m\\- tui-e. 11. The principal products supplied by these forests are lunihcr. chemical- and j)ulp-\vo()d, fuel-wood, maple syrup and su<r{ir. To a lessei- exteiil natural birch oil is ])roduced. Chemical- and pulp-wood products produce such imi)ortant articles as alcohol, dru«»:s for
. Bulletin (Pennsylvania Department of Forests and Waters), no. 46-50. Forests and forestry. 40 TiiK Bi:i:(Ii-P)IH(ii-Mai'lk Fokkst Type in I^exnsviaaxia si(lora})lv iiicTCiisiMl. The volume in cubic feet for fullv-stoeked staii Is of M <j:iv('Ji a<i(' Jind site varies eoiisiderahly with the proportion of m\\- tui-e. 11. The principal products supplied by these forests are lunihcr. chemical- and j)ulp-\vo()d, fuel-wood, maple syrup and su<r{ir. To a lessei- exteiil natural birch oil is ])roduced. Chemical- and pulp-wood products produce such imi)ortant articles as alcohol, dru«»:s for the l)harmaeist, j)aj)er, ;ind other products. 12. Stauds of see(lliu«»s or seedlin«»-s})rout ori<iin are necessary to pr( (luce hi«rh-(piality wood. The beecli-birch-maple type produces tlu'ifty and vi^'^orous si)routs only when cut wliile younji'. At times I)asswoo(l and wild black clierry j)roduce from lar(' stumi)s sprouts that «ir()w to tree size. Stands of s[)r()ut origin break up at au enily aji'c 1^5. iu ohl-j^rowth foi'ests of tiiis ty[)e ai'c to be found dense stands of seedliuji' trees, often inimbei'ing- 1(1(1,00(1 to tiie acre, tiifd are ready lo shoot U|) pi'(miptly after tlie mature trees iiave been cut. In oii',* instaiU'C more tiiau (S0(»,()0() snudl trees were present per acre. In cle;ir- cuttinji' operations the small trees or seedliuiis are often cut or broken otf near the jiround. These small ti'ces send up sprouts almost imme- diati'ly and foi-m dense natural even-a<ied stands. 14. The beech-birch-maple t\pe emplo\s thi'ee imiJoiMaul metiiods of i-epi-oduetion. In oi'dei* of their relative importance tliey are: seedinii, ^proutinjr, and I'oot-suckering. Maple and bird! seed freely and sprout viji'orously. The beech seeds less fre(|uently and s|)routs less vi«i'or- ously, a compensating factor being its j)roduction of large numbers nf vigorous root-suckei's. Associated species—wild l)lack (diei-ry, white ash, and basswood—also seed frcf
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforests, bookyear1923
