Production dynamics of intensively managed loblolly pine stands in the southern United States: a synthesis of seven long-term experiments

Jokela, Eric J.; Dougherty, Phillip M.; Martin, Timothy A.

doi:10.1016/j.foreco.2004.01.007

Cited by 154 publications

(104 citation statements)

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“…Significant differences among sites for wood density properties are reported for many species (Zobel and Sprague 1998, Larson et al 2001, Jokela et al 2004, Gundogan et al 2005. The ponderosa's pine plantation area in the Patagonian region is characterized by a strong west-east precipitation gradient.…”

Section: Discussionmentioning

confidence: 99%

Phenotypic variation of basic wood density in Pinus ponderosa plus trees

et al. 2011

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SUMMARYPhenotypic selection generally reduces the variability of both the selected trait and other associated characteristics. Some species show a negative strong relationship between growth traits and wood density. In the present study, basic wood density was assessed in a group of 23 control trees and 25 Pinus ponderosa plus trees, selected for growth and form traits in the Argentine Patagonia region. Trees were sampled in four different sites from the environmental and silvicultural point of view. We aim to study if the phenotypic variation in wood density is somehow influenced by the selection for productivity and form. The average wood density of plus trees was 0.37 g cm -3 , ranging from 0.29 to 0.46 g cm -3 . These values were not significantly different to control trees and were similar to those previously found in P. ponderosa plantations growing in the region. Wood density of the improved population, represented by plus trees did not differ from that of base population from which plus trees were selected. Significant differences were found in wood basic density among sites and age-classes. The phenotypic variation of the increment of wood density from pith to bark and among trees was different from zero. Not significant association was found between wood basic density and growth and form traits, except for stem straightness. It would be possible to identify high wood density trees at half of the rotation age.Key words: specific wood density, repeated measurements, genetic breeding, Patagonian, Argentine. RESUMENLa selección fenotípica generalmente reduce la variabilidad de los caracteres seleccionados y la de los caracteres asociados. Algunas especies muestran asociación negativa entre crecimiento y densidad de la madera. En este estudio, se evaluó la densidad básica de la madera en un grupo de 23 árboles control y 25 árboles plus de Pinus ponderosa seleccionados por criterios de crecimiento y forma en la región norpatagónica de Argentina. Las muestras provinieron de cuatro sitios con diferente clima y silvicultura. El objetivo fue determinar si la variación fenotípica de la densidad de la madera pudo haber sido afectada por la selección para productividad y forma. La densidad media de la madera de los arboles plus fue de 0,37 g cm -3 , variando desde 0,29 hasta 0,46 g cm -3 . Estos valores no fueron significativamente diferentes a los registrados en los árboles control y similares a los previamente registrados para P. ponderosa creciendo en la región. La densidad de la madera de la población de mejora (árboles plus) no difirió de la población base donde fue seleccionada. Diferencias significativas para la densidad de la madera se pudieron establecer entre sitios y clases de edad. El incremento de la densidad desde la médula hacia la corteza y la variación fenotípica entre árboles fue significativamente diferente de cero. La densidad no se encontró asociada a las características de crecimiento y forma, por las cuales los árboles plus fueron seleccionados, excepto con la rectitud de fuste. Sería posible...

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Section: Discussionmentioning

confidence: 99%

Phenotypic variation of basic wood density in Pinus ponderosa plus trees

et al. 2011

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“…To be an alternative to chemical fertilizers, poultry litter must be economically feasible, both in its application in plantations and in the resulting growth rates of loblolly pine. Many studies have investigated the composition of poultry litter [4][5][6][7][8], as well as application and vegetation response to various quantities and combinations [2,3,[9][10][11][12][13], and some management protocols on various soils have been established.…”

Section: Introductionmentioning

confidence: 99%

Response of East Texas Mid-Rotation Loblolly Pine Plantations to Poultry Litter and Chemical Fertilizer Amendments

Bp¹,

Mj²,

Kw³

et al. 2017

Forest Res

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“…However, production rates of loblolly pine outside its native range in favorable exotic environments indicate that full biological expression of growth potential in loblolly pine in its native range has not yet been attained (Jokela et al, 2004). For example, growth rates of loblolly pine plantations in Brazil and Argentina can be three times that for similar stands on the U.S. mainland (Schultz, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…For example, growth rates of loblolly pine plantations in Brazil and Argentina can be three times that for similar stands on the U.S. mainland (Schultz, 1999). Maximum carrying capacity for closed canopy loblolly pine stands is between 45 and 50 m 2 ha À1 (Jokela et al, 2004), but basal area in a loblolly pine study in Hawaii (HI), known as the Olinda Study (Debell et al, 1989;Harms et al, 1994Harms et al, , 2000, was 93 m 2 ha À1 at 48 years of age (Samuelson et al, 2010). Higher carrying capacity in the Olinda Study and other favorable exotic environments appears to be related to climate, specifically low evaporative demand, mild yearlong temperatures, and longer day lengths (Lanner, 1966) that promote year round carbon gain (Samuelson et al, 2010), support high leaf area (Harms et al, 1994) and reduce competition-related mortality (DeBell et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

“…For example, within a given region, cultivation of Pinus sylvestris L. at an elevated temperature impacted earlywood SG (Kilpeläinen et al, 2003) while Picea abies (L.) Karst latewood SG showed a greater response to summer temperature (Franceschini et al 2012) and drought (Bouriaud et al, 2005). Regional variation in wood properties for loblolly pine has been shown (Jordan et al, 2008), with the extended growing seasons in the southernmost latitudes affording greater ring SG as a function of greater latewood formation (Jokela et al, 2004). Antony et al (2010) determined that stands in the southern Atlantic Plain and Gulf Coastal Plan have the highest SG within the loblolly pine range because of higher summer precipitation, higher mean annual temperature and a longer growing season.…”

Section: Introductionmentioning

confidence: 99%

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