Relationships between breast-height and whole-stem growth indices for red spruce on Whiteface Mountain, New York

LeBlanc, David C.

doi:10.1139/x90-185

Cited by 107 publications

(75 citation statements)

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“…Similar to our analysis, standardized ring-width growth series at breast height and standardized whole-tree growth series of volume increment were highly correlated for high-elevation red spruce (Picea rubens) forests [11]. For European beech (Fagus sylvatica), the breast-height growth series were also highly correlated to whole-tree volume or biomass-increment series [13], but the breast-height series showed higher sensitivity to weather variation.…”

Section: Discussionsupporting

confidence: 81%

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Evaluation of Whole Tree Growth Increment Derived from Tree-Ring Series for Use in Assessments of Changes in Forest Productivity across Various Spatial Scales

Metsaranta

Bhatti

2016

Forests

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Abstract:The inherent predictability of inter-annual variation in forest productivity remains unknown. Available field-based data sources for understanding this variability differ in their spatial resolution, temporal resolution, and typical units of measure. Nearly all other tree and forest characteristics are in practice derived from measurements of diameter at breast height (DBH). Therefore, diameter increment reconstructed annually from tree-ring data can be used to estimate annual growth increments of wood volume, but the accuracy and precision of these estimates requires assessment. Annual growth estimates for n = 170 trees sampled for whole stem analysis from five tree species (jack pine, lodgepole pine, black spruce, white spruce, and trembling aspen) in Western Canada were compared against increments derived from breast height measurements only. Inter-annual variability of breast height and whole tree growth increments was highly correlated for most trees. Relative errors varied by species, diameter class, and the equation used to estimate volume (regional vs. national). A simple example of the possible effect of this error when propagated to the stand level is provided.

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Section: Discussionsupporting

confidence: 81%

“…An issue remains in that relatively little effort has been put into evaluating the accuracy of estimates derived from breast height, relative to actual whole tree growth increments [11][12][13]. For example, stem growth at breast height can over-or underestimate whole-tree annual increments under warm and dry climate [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Whole Tree Growth Increment Derived from Tree-Ring Series for Use in Assessments of Changes in Forest Productivity across Various Spatial Scales

Metsaranta

Bhatti

2016

Forests

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“…However, ring width in mature trees declines with age, thus, if a declining growth trend is suspected, it may be impossible to investigate it on the basis of changes in ring width alone (Phipps & Whiton, 1988). The conversion of radial increment (ring width) into basal area increment (BAI) overcomes this problem (Phipps & Whiton, 1988;LeBlanc, 1990b;Pedersen, 1998). Unlike ring width, age-related trends in unstandardized BAI are generally positive, culminating in a linear phase of high mature BAI that can be maintained for many decades (Phipps & Whiton, 1988;LeBlanc, 1990b).…”

Section: Introductionmentioning

confidence: 99%

“…The conversion of radial increment (ring width) into basal area increment (BAI) overcomes this problem (Phipps & Whiton, 1988;LeBlanc, 1990b;Pedersen, 1998). Unlike ring width, age-related trends in unstandardized BAI are generally positive, culminating in a linear phase of high mature BAI that can be maintained for many decades (Phipps & Whiton, 1988;LeBlanc, 1990b). Therefore, a negative trend in BAI is a strong indication of a true decline in tree growth (LeBlanc, 1990b;Pedersen, 1998).…”

Section: Introductionmentioning

confidence: 99%

Rapid climate change‐related growth decline at the southern range edge of Fagus sylvatica

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Hunt

Peñuelas

2006

Global Change Biology

599

422

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Studies on Fagus sylvatica show that growth in populations toward the southern limit of this species' distribution is limited strongly by drought. Warming temperatures in the Mediterranean region are expected to exacerbate drought where they are not accompanied by increases in precipitation. We studied levels of annual growth in mature F. sylvatica trees over the last half-century in the Montseny Mountains in Catalonia (northeast Spain). Our results show significantly lower growth of mature trees at the lower limit of this species' distribution when compared with trees at higher altitudes. Growth at the lower Fagus limit is characterized by a rapid recent decline starting in approximately 1975. By 2003, growth of mature trees had fallen by 49% when compared with predecline levels. This is not an age-related phenomenon, nor is it seen in comparable populations at higher altitudes. Analysis of climate-growth relationships suggests that the observed decline in growth is a result of warming temperatures and that, as precipitation in the region has not increased, precipitation is now insufficient to ameliorate the negative effects of increased temperatures on tree growth. As the climateresponse of the studied forest is comparable with that of F. sylvatica forests in other southern European regions, it is possible that this growth decline is a more widespread phenomenon. Warming temperatures may lead to a rapid decline in the growth of rangeedge populations and a consequent retreat of the species distribution in southern Europe. Assessment of long-term growth trends across the southern range edge of F. sylvatica therefore merits further attention.

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“…The BAI positively culminates in a linear phase based on the maturity stage in general [35] and a negative trend in the BAI is a clear indication of decline in tree growth [36]. To calculate the effective length (accelerated growth), these two periods of tree-ring measures must be transformed to time-to-event binary data by setting a threshold as the following: effective (1): smoothed BAI > threshold, or failure (0): smoothed BAI < threshold.…”

Section: Tree-ring Data Pre-processingmentioning

confidence: 99%

Determining Ideal Timing of Row Thinning for a Cryptomeria japonica Plantation Using Event History Analysis

Chung

Lin

et al. 2017

Forests

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Effective time of thinning is essential for determining a silvicultural operation schedule. One of the most commonly used methods is the percentage of radial increase to assess the effect of thinning. However, it is difficult to determine the ideal time point due to variation in tree growth rates. Event history analysis was used to quantify the optimal timings for different row thinning types for a 45-year-old Cryptomeria japonica plantation in the mountainous region of Taiwan. The increase in tree-ring size was measured and converted to the basal area increment (BAI) to estimate annual tree growth; derived time-series data were entered into event history analysis to calculate the time to 50% probability of survival. Additionally, an accelerated failure time regression was applied to test the effects of thinning and its timing; model validation was carried out to examine the influence of thinning time variation on plant growth through time. Results showed that thinning modified the temporal dynamics of the BAI, and, in general, a positive trend was observed between strip-width and time of thinning. Simulated tree growth in the model validation corroborated that accurate timing may optimize thinning effects. Combining tree-ring measurement and event history analysis may facilitate determining the timing of row thinning, which can improve carbon sequestration of forest stands.

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Relationships between breast-height and whole-stem growth indices for red spruce on Whiteface Mountain, New York

Cited by 107 publications

References 0 publications

Evaluation of Whole Tree Growth Increment Derived from Tree-Ring Series for Use in Assessments of Changes in Forest Productivity across Various Spatial Scales

Evaluation of Whole Tree Growth Increment Derived from Tree-Ring Series for Use in Assessments of Changes in Forest Productivity across Various Spatial Scales

Rapid climate change‐related growth decline at the southern range edge of Fagus sylvatica

Determining Ideal Timing of Row Thinning for a Cryptomeria japonica Plantation Using Event History Analysis

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