A working plan for forest lands near Pine Bluff, Arkansas . rom the curve, the height increases very rapidly withdiameters up to 5 or 6 inches. The rate then diminishes in a veryuniform manner until the largest diameters are reached. (See fig. -i.) Relation of afft to (Jinmeter.—The relation between age and diameterbreasthigh is here shown for both Shortleaf and Loblolly Pine. The diameter of the Shortleaf increases very regularly for the firsthundred years, after which the rate of increase begins gradually tofall off. For the first hundred years the average time required togrow 1 inch in diam
A working plan for forest lands near Pine Bluff, Arkansas . rom the curve, the height increases very rapidly withdiameters up to 5 or 6 inches. The rate then diminishes in a veryuniform manner until the largest diameters are reached. (See fig. -i.) Relation of afft to (Jinmeter.—The relation between age and diameterbreasthigh is here shown for both Shortleaf and Loblolly Pine. The diameter of the Shortleaf increases very regularly for the firsthundred years, after which the rate of increase begins gradually tofall off. For the first hundred years the average time required togrow 1 inch in diameter is five and one-half years. It will be seenfrom the curve that if IJ, inches be taken as the cutting limit, Shortleaf Pine first becomes merchantable after sixty-two years. (See fig. 5.) Relation of age to height.—The height growth for both Shortleafand Loblolly Pine is represented in this diagram. For Shortleaf theheight growth is exceedingly uniform and quite rapid for the firsttwenty years, after which period the rate gradually diminishes. For. HE/e/fr-FFET. Fig. 4.—Diagram showing the height growth of Shortleaf and Loblolly line on the basis of diameter breasthigh. 30 WORKING PLAN FOR FOREST LANDS NEAR PINE BLUFF, ARK. the first one hundred years the yearly average growth in height foot, and for the first twenty years feet. (See tig. 8.) Relation of aye to merchantable contents.—The curve here given
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Keywords: ., bookcentury1900, bookdecade1900, bookidworkingplanf, bookyear1902
