. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. M^^' '^%tvX .• r^ »^ I-w-\'^^ ^^^^^^^ Fig. 3. ACRES OF DESOLATION. More than 5, acres of such barren land are found in Pennsylvania. Much valuable timber lost through reckless exploitation of the original 1 Fig. 4. ACRES OF SCRUB OAK. Scrub Oak has no timber value. Large areas in our forests contain many weed six^cies which uften prevent other valuable trees from establishing themselves. 15 (lestiiutive work of Ininbermen, and the advent of forestry present a picture of cliaiijie and progress,
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. M^^' '^%tvX .• r^ »^ I-w-\'^^ ^^^^^^^ Fig. 3. ACRES OF DESOLATION. More than 5, acres of such barren land are found in Pennsylvania. Much valuable timber lost through reckless exploitation of the original 1 Fig. 4. ACRES OF SCRUB OAK. Scrub Oak has no timber value. Large areas in our forests contain many weed six^cies which uften prevent other valuable trees from establishing themselves. 15 (lestiiutive work of Ininbermen, and the advent of forestry present a picture of cliaiijie and progress, whicli enables us in part to com- prehend the ini])ortant role that man played in transforming the (>i'iiiial forest into the present forest. I'ennsylvania originally contained large, dense, and extremely pro- ductive forests. The large have become small, the dense have be- come open, the ])roductive have become uni)roductive. Each genera- lion of maiddiid has seen a smaller, more open, and less productive generation of forests. The march of forest destruction has been rapid and severe and yet inevitable on account of existing economic c(mditions. While originally almost the total area of the State was covered with tree-growth, to-day less than 50 per cent, is covered by woody growth and over 5,000,000 acres of this is barren or un- productive, while many more acres are poorly stocked with trees. Most of our woodland areas are at present in a very unproductive unsanitary, unattractive, and unregulated condition. Pkonomic conditions have changed and the old order of things need not continue. We must substitute conservative lumbering for the wasteful exi)]oitation of the past. We must do constructive work in our forests now to recompense for the destructive work carried on during the last few centuries. We should aim to show our social and civic worth by handing down to future generations a heritage equivalent to that which we received from our forefathers In order to do i)
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforests, bookyear1901
