The effect of site, stand density, and sapwood permeability on the relationship between leaf area and sapwood area in loblolly pine (Pinus taeda L.)

Shelburne, Victor B.; Hedden, Roy L.; Allen, Robert M.

doi:10.1016/0378-1127(93)90145-d

Cited by 70 publications

(43 citation statements)

References 13 publications

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“…Allometric relationships between tree components have been shown to vary with species (Kaufmann and Troendle 1981), age (Albrektson 1984) and site conditions (Espinosa Bancalari et al 1987;Shelbourne et al 1993;Berninger and Nikinmaa 1997). Nevertheless, in some cases, consistent relationships have been found for some species across a range of sites (e.g.…”

Section: Introductionmentioning

confidence: 96%

Allometric relationships for Eucalyptus nitens (Deane and Maiden) Maiden plantations

Medhurst¹,

Cherry²,

Hunt³

et al. 1999

Trees

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Allometric relationships between stem, leaf area and crown dimensions were determined for Eucalyptus nitens (Deane and Maiden) Maiden using 81 trees sampled from 13 post-canopy closure sites and 34 trees sampled from 6 pre-canopy closure sites. These sites differed in site quality, stand age, fertiliser treatment, stand density and levels of weed infestation. Overall, tree age ranged from 2 to 13 years, tree height from 1.4 to 26.1 m and diameter at breast height from 0.6 to 38.7 cm. Pre-canopy closure trees exhibited sitespecific relationships which were to some extent confounded with tree age. However, post-canopy closure trees had relationships which were independent of site, age and silvicultural treatments. Strong relationships between structural components were found for both stem and crown. Stem diameter at breast height was non-linearly related to tree height and crown length. Stem sapwood area (breast height or crown base) could be predicted from stem cross-sectional area. For postcanopy closure trees, a functional relationship between sapwood area (breast height and crown base) and leaf area was site-independent. The lack of specificity in terms of both site and management techniques enables these relationships to be applied generally to E. nitens plantations in Tasmania.

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Section: Introductionmentioning

confidence: 96%

Allometric relationships for Eucalyptus nitens (Deane and Maiden) Maiden plantations

Medhurst¹,

Cherry²,

Hunt³

et al. 1999

Trees

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“…The relationship between leaf area and conductive area of xylem may also vary with the genetic origin (St.Clair 1993), age, morphology (Coyea and Margolis 1992) and dominance class of trees (Shelburne et al 1993), and with position in the crown (Oren et al 1986a) and foliage age (Dvorak et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Estimating the needle area from geometric measurements: application of different calculation methods to Norway spruce

Sellin

2000

Trees

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Different calculation methods, based on needle geometry, for estimating both projected area (PLA) and total surface area (TLA) of foliage in Norway spruce [Picea abies (L.) Karst.] were compared. Seventy-eight shoots of four age classes were sampled from both the basal and top thirds of crowns. Three dimensions (the length, minor and major diameters) of needles were taken, and the needle shape was approximated to a parallelepiped or ellipsoid. There was a perfect coincidence of the measured and estimated values of PLA calculated as the width of the needle projection multiplied by needle length, and corrected for needle taper (method III), or when the needle projection was treated as a rectangle joined with half-ellipses at both ends (method IV). The most reliable estimations of TLA resulted from treating the needle sides as faces of the parallelepiped tapering at their ends in the form of half-ellipses. The ratio of TLA to PLA ranged from 2.2 to 4.0 depending on the needle morphology. Needle minor diameter (anatomical width; D 1 ) was found to be a better morphological index of the spruce foliage than needle flatness, i.e. the ratio of major to minor diameter. Expressing the factor for converting PLA to TLA as a function of D 1 considerably improved the precision of the estimates. Close relationships were established between specific leaf area, expressed on both a projected area (SLA P ) and total surface area basis (SLA T ), needle dry weight (R 2 was 0.799 and 0.852, respectively) and minor diameter of needles (R 2 was 0.701 and 0.554, respectively).

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“…There is a good body of work demonstrating the allometric correlation between sapwood area and leaf area [1][2][3][4][24][25][26][27][28][29][30][31][32]. However, one of the biggest problems in using these allometric correlations is the species-specific physio-and morphological variations that influence the tree's allometry.…”

Section: Introductionmentioning

confidence: 99%

Allometry of Sapwood Depth in Five Boreal Trees

Quiñonez-Piñón

Valeo

2017

Forests

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This paper analyzes sapwood variability and allometry within individuals of Populus tremuloides, Pinus contorta, Pinus banksiana, Picea mariana, and Picea glauca. Outside bark diameter at breast height (DBH) and sapwood depth (sd) in four cardinal directions were measured in individuals in stands in Alberta and Saskatchewan, Canada. The microscopical analysis of wood anatomy was used to measure sd, and the error associated with the measures was observed. Sapwood allometry analyses examined the influence of DBH on sd and on sapwood area (SA). All species were observed to have varying sapwood depths around the trunk with statistical analyses showing that Pinus banksiana has a well defined preference to grow thicker in the North-East side. The largest sd values were observed for the Populus tremuloides set. Unlike Populus tremuloides and Picea glauca, for the species Pinus contorta, Pinus banksiana, and Picea mariana, incremental growth in DBH does not directly drive sapwood growth in any direction. For these three species, SA increases only because of increases in DBH as sd remains nearly constant. These results show that sapwood depth and sapwood area seem to behave differently in each studied species and are not always proportional to the tree size as is normally assumed.

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The effect of site, stand density, and sapwood permeability on the relationship between leaf area and sapwood area in loblolly pine (Pinus taeda L.)

Cited by 70 publications

References 13 publications

Allometric relationships for Eucalyptus nitens (Deane and Maiden) Maiden plantations

Allometric relationships for Eucalyptus nitens (Deane and Maiden) Maiden plantations

Estimating the needle area from geometric measurements: application of different calculation methods to Norway spruce

Allometry of Sapwood Depth in Five Boreal Trees

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