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Growth and Photosynthesis Characteristics of an Artificially Regenerated Mixed Hardwood Stand in the Southern USAAuthor(s): Shi-Jean S. Sung; Paul P. Kormanik; Stanley J. Zarnoch; Charles Possee
Source: In: Gardiner, Emile S.; Breland, Lynn J. eds.. Proceedings of the IUFRO conference on restoration of boreal and temperate forests; 2002 April 29-May 02; Vejle, DK.; Frederiksberg, DK: Rep. 11. Danish Centre for Forest Landscape and Planning: 145-146.
Publication Series: Miscellaneous Publication
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DescriptionThe hardwood forests of the southern U.S. are not naturally composed of singe predominant species. The diversity of tree species within these stands is one of the qualities that make them so valuable for multiple use stand management. While many of the best hardwood sites have been planted to pines since the 1950's, some proportion of these pine stands now being harvested may need to be reforested to mixed hardwood stands to achieve desired biological diversity. In February 1994 a mixed hardwood stand consisting 200 seedlings each of Carya aquatica (WH), Fraxinus pennsylvanica (GA), Liquidambar styracifIua (SG), Quercus michauxii (SCO), and Q. pagoda (CBO) was established on Savannah River Site, New Ellenton, South Carolina, USA, Sweetgum had 14% mortality after one year. Mortality for CBO (16%) occurred during year 2 and year 3. No mortality occurred for any species after four years. All GA and about 92% of SC0 and WH lived. Height (Table 1) and diameter (Table 2) growth of SG was most active among all species. At the end of eight years, SG had the greatest mean stem volume with that of GA, SC0 and similar to each other (Table 2). Maximal assimilation rate (A) ranged between 7.9 and 14.8 µmol m-2 s-1 for these species (Table 3). In December, CBO and SC0 maintained an A of 7.6 and 4.5 pmol rns2 s-`, respectively, whereas other three species had abscised completely. In 1999,33% of SG and 8% of GA trees produced seeds. Acomets were spotted on 3 CBO trees during 2001. Factors contributing to growth variations among species will be discussed.
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CitationSung, Shi-Jean S.; Kormanik, Paul P.; Zarnoch, Stanley J.; Possee, Charles. 2002. Growth and Photosynthesis Characteristics of an Artificially Regenerated Mixed Hardwood Stand in the Southern USA. In: Gardiner, Emile S.; Breland, Lynn J. eds.. Proceedings of the IUFRO conference on restoration of boreal and temperate forests; 2002 April 29-May 02; Vejle, DK.; Frederiksberg, DK: Rep. 11. Danish Centre for Forest Landscape and Planning: 145-146.
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