Stand development and growth responses of 1- and 3-year-old natural upland hardwoods to silvicultural treatments

Schuler, Jamie L.; Robison, Daniel J.

doi:10.1016/j.foreco.2006.05.063

Cited by 12 publications

(17 citation statements)

References 15 publications

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“…There are about 55 million hectares of natural hardwood stands already growing, available, and accessible for collection [39] if the market for the relatively low density of heterogeneous products justified the costs of harvest, handling and transport. These forests could be much more productive and valuable with small investments in silviculture [40,41]. For bioenergy feedstock, questions about composition from mixed species remain to be answered; but if processes do not require homogenous feedstock, natural forests offer an option to increase biomass supplies more quickly and with lower costs than by establishing new hardwood plantations and waiting a period of years before harvest.…”

Section: Natural Hardwoods and Mixed-stand Managementmentioning

confidence: 99%

Woody energy crops in the southeastern United States: Two centuries of practitioner experience☆

Kline

Coleman

2010

Biomass and Bioenergy

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Hardwood plantations Productivity Southern pine plantationsCommercial production costs Bioenergy feedstocks a b s t r a c t Forest industry experts were consulted on the potential for hardwood tree species to serve as feedstock for bioenergy in the southeastern United States. Hardwoods are of interest for bioenergy because of desirable physical qualities, genetic research advances, and growth potential. Yet little data is available regarding potential productivity and costs. This paper describes required operations and provides a realistic estimate of the costs of producing bioenergy feedstock based on commercial experiences. Forestry practitioners reported that high productivity rates in southeastern hardwood plantations are confined to narrow site conditions or require costly inputs. Eastern cottonwood and American sycamore grow quickly on rich bottomlands, but are also prone to pests and disease. Sweetgum is frost hardy, has few pest or disease problems, and grows across a broad range of sites, yet growth rates are relatively low. Eucalypts require fewer inputs than do other species and offer high potential productivity but are limited by frost to the lower Coastal Plain and Florida. Further research is required to study naturally regenerated hardwood biomass resources. Loblolly pine has robust site requirements, growth rates rivaling hardwoods, and lower costs of production. More time and investment in silviculture, selection, and breeding will be needed to develop hardwoods as competitive biofuel feedstock species.Because of existing stands and fully developed operations, the forestry community considers loblolly pine to be a prime candidate for plantation bioenergy in the Southeast. ª 2010 Elsevier Ltd. All rights reserved. Backgroundi o m a s s a n d b i o e n e r g y x x x ( 2 0 1 0 ) 1 e1 2

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Section: Natural Hardwoods and Mixed-stand Managementmentioning

confidence: 99%

Woody energy crops in the southeastern United States: Two centuries of practitioner experience☆

Kline

Coleman

2010

Biomass and Bioenergy

View full text Add to dashboard Cite

show abstract

“…Previous measurements and additional stand and species-specific responses to treatments can be found in Schuler and Robison (2006).…”

Section: Experimental Designmentioning

confidence: 99%

“…Recent research has demonstrated that intensive practices are effective in promoting accelerated growth and development in very young naturally regenerated hardwood stands (Schuler and Robison, 2006). Competing vegetation, animal herbivory, disease, soil fertility and overstocking have been identified as constraints on stand development and the growth of select stems in young even-aged hardwood stands in the North Carolina Piedmont and upper Coastal Plain physiographic regions (Newton et al, 2002;Schuler and Robison, 2006;Romagosa and Robison, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Competing vegetation, animal herbivory, disease, soil fertility and overstocking have been identified as constraints on stand development and the growth of select stems in young even-aged hardwood stands in the North Carolina Piedmont and upper Coastal Plain physiographic regions (Newton et al, 2002;Schuler and Robison, 2006;Romagosa and Robison, 2003). Intensive silvicultural treatments to manage competing vegetation and herbivory have resulted in five-fold increases in volume production compared to nonmanaged hardwood stands at ages 1-3 (Romagosa and Robison, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Intensive silvicultural treatments to manage competing vegetation and herbivory have resulted in five-fold increases in volume production compared to nonmanaged hardwood stands at ages 1-3 (Romagosa and Robison, 2003). Broadcast fertilization-alone has produced three-fold gains in volume in young stands on similar sites (Newton et al, 2002;Schuler and Robison, 2006). This paper seeks to elucidate the mechanisms that foster significant growth responses by naturally regenerated yellow-poplar (Liriodendron tulipifera L.).…”

Section: Introductionmentioning

confidence: 99%

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