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Title: Interim Site-index Curves for Longleaf Pine Plantations
Author: Boyer, William D.;
Source: Res. Note SO-261. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 5 p.
Publication Series: Research Note (RN)
Description: No single set of site-index curves can be uniformly applied to young longleaf pine plantations without a sacrifice in reliability. A recent study using plantation remeasurement data indicated that planting-site condition (old fields and mechanically prepared or unprepared cutover forest sites) has a major impact on early plantation height growth. Stand density (surviving trees per acre) also affected form of height-over-age curves. On both prepared and unprepared forest sites, site quality affected curve form, so polymorphic site-index curves resulted for these two conditions. Longleaf pine plantation site-index curves for these three planting-site conditions were derived from 660 plots remeasured through ages 15 to 17 or 20 to 22 years. Modification of the curves may be necessary as more data become available.
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Boyer, William D. 1980. Interim Site-index Curves for Longleaf Pine Plantations. Res. Note SO-261. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 5 p.
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