논픽션
Trees have held an important place in man's way of life since he has been on the earth. Trees provided early man with weapons to defend himself and helped provide him with food, shelter and fuel.
Trees have played an important role in the history of the United States. Timber was our nation's first export. The forest also provided our forefathers with their homes, farm implements, rifle stocks and wagons. The forest, by furnishing ties and utility poles, made possible the expansion of railroad systems, electric power and telephone networks. Every industry depends upon forest products in one way or another.
Trees are more important today than ever before. More than 10,000 products are reportedly made from trees. Through chemistry, the humble woodpile is yielding chemicals, plastics and fabrics that were beyond comprehension when an axe first felled a Texas tree.
The American standard of living depends to no small extent on the care with which we use our forest resource. Fortunately, trees are a renewable resource. They can be grown as a crop and harvested in such a way that the stand is kept productive, and a steady supply of forest products is assured...
© 2016 anboco (전자책 ): 9783736415720
출시일
전자책 : 2016년 9월 28일
논픽션
Trees have held an important place in man's way of life since he has been on the earth. Trees provided early man with weapons to defend himself and helped provide him with food, shelter and fuel.
Trees have played an important role in the history of the United States. Timber was our nation's first export. The forest also provided our forefathers with their homes, farm implements, rifle stocks and wagons. The forest, by furnishing ties and utility poles, made possible the expansion of railroad systems, electric power and telephone networks. Every industry depends upon forest products in one way or another.
Trees are more important today than ever before. More than 10,000 products are reportedly made from trees. Through chemistry, the humble woodpile is yielding chemicals, plastics and fabrics that were beyond comprehension when an axe first felled a Texas tree.
The American standard of living depends to no small extent on the care with which we use our forest resource. Fortunately, trees are a renewable resource. They can be grown as a crop and harvested in such a way that the stand is kept productive, and a steady supply of forest products is assured...
© 2016 anboco (전자책 ): 9783736415720
출시일
전자책 : 2016년 9월 28일
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