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Conference Proceeding

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Stem analysis was used to obtain age and height data for loblolly pine (Pinus taeda L.) stands growing on Bowie, Fuquay, Sacul, and TroupxlsTnortheastern Texas. The soil profiles were described and bulk soil samples were taken in each sample stand. Selected physical and chemical soil properties were measured for each soil horizon. Stepwise regression analysis was used to correlate average stand height at ages 5, 10, 20, and 30 years with soil properties. Strong associations were found between stand height and properties which relate to available soil moisture holding capacity, soil permeability, and soil aeration. For Bowie, Fww , and Troup soils, average stand height increased with increasing moisture holding capacity of the surface soil and with increasing subsoil permeability and aeration. On Sacul soils, height increased with better permeability and aeration of the solum. Average annual height growth on the four soils differed significantly only in the first 5 years, peaked between ages five and 10, and then declined. Average cumulative stand heights differed significantly between series until age 10. Differences in attained height at age 25 seemed more related to rapid early growth than to differences in later growth rates.


Willett, R. L., and Bilan, M. V. (1991). Soil properties relating to height growth of loblolly pine on four major soil series in East Texas, pp. 458-469. IN: Coleman, Sandra S.; Neary, Daniel G.; [Compilers and editors] 1991. Proceedings of the Sixth Biennial Southern Silvicultural Research Conference. Gen. Tech. Rep. SE-70. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 904 p.



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