Abstract

Title:  Forage produced by clearcutting and site preparation in east Texas
Author(s): Stransky, J. J.
Year: 1980
Abstract: Total forage yield (TFY) on three pine-hardwood forest sites in east Texas was sampled before and one growing season after clearcutting (1972 and 1973); also one, three, and five growing seasons after planting site preparation by burning, chopping, or KG blading. All sites were planted with loblolly pine seedling at 2.4 x 3 m spacing. One of the sites had once been cleared for agricultural cultivations, the other two had always been forested, though grazed by livestock in years past. Total forage yield averaged only 345 kg/ha in the uncut forests, but 1713 kg/ha after clearcutting. On control plots (no site preparation) of site 3, TFY peaked immediately in the first growing season after clearcutting with 2917 kg/ha, but gradually decreased to 1103 kg/ha by the 5th growing season. On the control plots of sites 1 and 2, TFY peaked one growing season after site preparation (3548 kg/ha). On burned plots TFY peaked the first growing season after burning (3719 kg/ha) and decreased to 1434 hg/ha by the 5th growing season. On chopped plots TFY peaked with 3416 kg/ha in the first growing season after site preparation, and decreased to 1796 kg/ha by the 5th growing season. On KG bladed plots TFY peaked with 2892 kg/ha in the first growing season. Mechanical site preparation retarded the growth of woody plants (browse), but initially encouraged herbage growth. The formerly cultivated site produced consistently more herbage than browse

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