. Bulletin (Pennsylvania Abteilung der Wälder und Gewässer), No. 35. Die Wälder und die Forstwirtschaft. Â f. Â f. 5 00 n a: c c< o; 5 X ein Glas^' oder in unserer Nahrung wegen seiner iririuenee auf die Feuchtigkeit der Luft und des Bodens, der Landwirtschaft vorteilhaft ist. Die Vögel des Waldes in das Insekt Horden, die Würde de Check-stroy alle Nutzpflanzen, wenn unkontrollierte. Holz wird in die Zäune der Felder verwendet, die Maschinen und ecpiipment der Farm und Garten. Kulturpflanzen werden gesammelt, transportiert und in Holzkisten gelagert. Der Wald ist Reservoir der Natur und Filter System uns wi

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. Bulletin (Pennsylvania Department of Forests and Waters), no. 35. Forests and forestry. â f. â f. 5 00 n a: c c < o ;5 X a Jar^'or part in our food supply because of its iririuenee on the mois- ture supply of air and soil, which is beneficial to agriculture. The birds of the forest hold in check the insect hordes which would de- stroy all food crops if uncontrolled. Wood is used in the fences of the fields, the machinery and ecpiipment of the farm and garden. Crops are gathered, transported and stored in wooden containers. The forest is nature's reservoir and filter system to supply us with a constant and ])ure sui)ply of water not only to drink but to fill our streams for powei- and navigation. The forest also furnislies us Avith clothing. First came the skins of animals, and the fur industry is still of considerable importance. Now all sorts of clothing, sucli as artificial silk, are made from wood fibres. Likewise wood enters largely into the harvesting, marketing, and manufacturing of clothing made from wool and cotton. The forest furnishes dyes, wood buttons, wooden lasts for shoes, shapes for liats. and the tanning materials for the leather of" our shoes, gloves, coats and other leather goods. Needless to state that the forest has furnished ns our shelter. Wooden houses are still most common in our country. Where brick and stone have been used for outside walls wood has entered most largely into the interior finish and e(iui])ment of our homes. Our fuel comes directly or indirectly from the forest. Wood is a direct product of the forest. Coal is mined by using large quantities of wood for mine tii)d)ering. Electricity, developed from water power kept constant by forested hills, is transmitted over wires on wooden poles. The forests of any state furnish a large demand for labor. Eighty I)er cent of wood prices is made up of labor values. Likewise the forest areas with streams and game, beautiful quiet spots, trees and floAvers are constantly calling

Stockbilder mithilfe von Tags suchen

• bookcentury1900
• bookdecade1920
• booksubjectforests
• bookyear1923