. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. 939 FORESTRY INVESTIGATIONS U. S. DEPARTMENT OP AGRICULTURE. The State forests of 480,000 acres occupy parts of all four provinces of the country. About 92 per cent lie between 000 and 2,400 feet altitude; 42 per cent are stocked on level ground, 20 per cent on gentle slopes, and about the same amount on steep declines. Over 40 per cent of these forests are situated on sandy soils, and the rest are largely on the poor limestone soils of the Jura, and only a small part on the diift
. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. 939 FORESTRY INVESTIGATIONS U. S. DEPARTMENT OP AGRICULTURE. The State forests of 480,000 acres occupy parts of all four provinces of the country. About 92 per cent lie between 000 and 2,400 feet altitude; 42 per cent are stocked on level ground, 20 per cent on gentle slopes, and about the same amount on steep declines. Over 40 per cent of these forests are situated on sandy soils, and the rest are largely on the poor limestone soils of the Jura, and only a small part on the diift formation skirting the north side of the Alps. Of the State forest area there is covered by a pine growth of spruce, 28 per cent; beech, 20 per cent; fir, 0 per cent; pine, 7 per cent; mixed growth of conifers, 14 per cent; conifers and hardwoods, 9 per cent; mixed hardwoods with oak, 7 per cent; mixed hardwoods without oak, 2 per cent. Thus about 60 per cent is coniferous growth and only 30 per cent hardwoods, with about 9 per cent mixed timber. Fully 97 per cent of the State forests are managed by the timber forest system. The rotation is for timber forest, 100 years for 74 per cent of the area; 80 years for 24 per cent of the area, and 120 years for 2 per cent of the area. At the present (1894) the areas containing timber over 100 years old cover 11 per cent of the area; 81 to 100 years old cover 15 per cent of the area; Gl to 80 years old, 15 per cent; 41 to 60 years old, 17 per cent; 21 to 40 years old, 19 per cent; 1 to 20 years old, 23 per cent; so that a fairly regular distribution for a 100-year rotation exists. These timber forests yield about 5G} cubic feet per acre of timber from the main cut or harvest and 11 cubic feet; per acre from thinnings, making in all 67 cubic feet per acre and year for the entire area. The 3 per cent managed in coppice and standard coppice cut only about 14 cubic feet per acre and year. The total cut for 1894 was, for wood over 3 inches t
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
