. Bulletin (Pennsylvania Department of Forests and Waters), no. 35. Forests and forestry. 02 ^^ -/: X < o i:-« 22 H r H 9 H O 1-4 H LESSON THREE WHAT tup: forest does The more we know about the forest and what it does for our wel- fare, the more we appreciate its and the more we will do to protect and perpetuate it. The forest is a soil saver. Every acre of land should be kept pro- ductive. The forest utilizes soil too poor to produce food crops. There are at least thirteen million acres of such land in Pennsylvania. A forest increases the value of bare soil bv the production of a
. Bulletin (Pennsylvania Department of Forests and Waters), no. 35. Forests and forestry. 02 ^^ -/: X < o i:-« 22 H r H 9 H O 1-4 H LESSON THREE WHAT tup: forest does The more we know about the forest and what it does for our wel- fare, the more we appreciate its and the more we will do to protect and perpetuate it. The forest is a soil saver. Every acre of land should be kept pro- ductive. The forest utilizes soil too poor to produce food crops. There are at least thirteen million acres of such land in Pennsylvania. A forest increases the value of bare soil bv the production of a crop with very little labor, and thus bears its just share of taxation, tending by so much to reduce the taxes on farm lands. A forest increases tlie fertility of the soil on which it grows and prepares it for agricultural use when needed for tliat purpose. A forest prevents erosion of the soil. The leaf litter covers the surface of the soil and makes it difficult for rains to carry away the small particles of soil. Likewise the roots bind the earth so that even though the surface soil might be disturbed to some extent, the cutting out of the soil by flowing water prevented by tlie nuiss of roots. The forest is a renewahle natural resource. By this is meant that the forest is a crop of the soil and that one crop of trees after another may be raised on the same area, just as successive crops of corn are raised, except that the forest crop requires more time from seed to harvest. A forest may also be a continuous cro]), if it contains trees of all ages from seedlings to trees ready to be used. Onlv the scattered usable trees are harvested and their space is immediately taken by new seedlings. The soil is never completely bare. The forest trees use the productive powers of Nature, sun, wind, rain, and soil, and transform them into wood. These forces of Nature are always available and as long as there are tree leaves present to use them the wood crop will be ])rodueed. When t
Size: 1248px × 2002px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectforests, bookyear1923
