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Interim Site-index Curves for Longleaf Pine Plantations

Informally Refereed

Abstract

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.

Citation

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.
Citations
https://www.fs.usda.gov/research/treesearch/1898