. Bulletin (Pennsylvania Department of Forests and Waters), no. 35. Forests and forestry. X I. z. â r. < < - ^ < 3 w X J. 5 LESSON THREE WHAT THI^ FORKST DOKS The more wc know ahout the forest and what it does for our wel- fare, the more we ai)i)reciatc its presence and the more we will d(j to ])rotect and perpetuate it. 77/r j or est is a soil saver, lu'erv acre of land should he kept pro- ductive. The forest utilizes soil too poor to produce food crops. There are at least thirteen million acres of such land in I Pennsylvania. A forest increases the value of hare soil hy the producti
. Bulletin (Pennsylvania Department of Forests and Waters), no. 35. Forests and forestry. X I. z. â r. < < - ^ < 3 w X J. 5 LESSON THREE WHAT THI^ FORKST DOKS The more wc know ahout the forest and what it does for our wel- fare, the more we ai)i)reciatc its presence and the more we will d(j to ])rotect and perpetuate it. 77/r j or est is a soil saver, lu'erv acre of land should he kept pro- ductive. The forest utilizes soil too poor to produce food crops. There are at least thirteen million acres of such land in I Pennsylvania. A forest increases the value of hare soil hy the production of a crop with very little lahor. and thus enahles it to hear its just share of taxation, tendin<( hy so much to reduce the taxes on farm lands. A forest increases the fertility of the soil on which it grows and pre- pares it for agricultural use when needed for that purpose. A forest prevents erosion of the soil. The leaf litter covers the sur- face of the soil and makes it diriicult for rains to carry awav the small l)articles of .^oil. Likewise the roots hind the earth so that even though the .surface soil nnght he disturhed to some extent, the cutting out of tlie soil 1))- flowing water is prevented hy the mass of roots. The forest is a rci\c7ablc natural resource. By this is meant :hat the forest is a crop of the soil and that one crop of trees after another may he raised on the same area, just as successive crops of corn are raised, except that the forest crop re(|uires more time from seed to harvest. A forest ma\' also l)e a continuous cro]), if it contains trees of all ages fmm .seedlings to trees ready to he Only the scattered usahle trees are harvested and their si)ace is immediately taken hy new seedlings. The soil is never completely hare. 'J'he forest trees use the productive i)()wers of Nature, sun, wind. rain, and soil, and transform them into wood. forces of Nature are always available and as long as there are tree leaves ])resent to use the
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