Influence of seedbed, light environment, and elevated night temperature on growth and carbon allocation in pitch pine (Pinus rigida) and jack pine (Pinus banksiana) seedlings

Day, Michael E.; Schedlbauer, Jessica L.; Livingston, William H.; Greenwood, Michael S.; White, Alan S.; Brissette, John C.

doi:10.1016/j.foreco.2004.10.004

Cited by 15 publications

(13 citation statements)

References 35 publications

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“…Photosynthetic capacity of foliage, reflected here as lightsaturated photosynthesis, is only one component of a complex carbon balance system that results in biomass production, with equally important roles being played by foliar area and display arrangement, allocation patterns, and seasonal foliar phenology (Boltz et al, 1986;Luxmoore, 1991;McCrady and Jokela, 1998;Day et al, 2005). In this study we focused our available resources on sampling photosynthesis of fully developed foliage in mid-growing season, with the assumption that it would provide the best metric of change in photosynthetic capacity.…”

Section: Photosynthetic Response To Fertilizationmentioning

confidence: 99%

Effects of enhanced nitrogen deposition on foliar chemistry and physiological processes of forest trees at the Bear Brook Watershed in Maine

Elvir

Wiersma

Day

et al. 2006

Forest Ecology and Management

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Section: Photosynthetic Response To Fertilizationmentioning

confidence: 99%

Effects of enhanced nitrogen deposition on foliar chemistry and physiological processes of forest trees at the Bear Brook Watershed in Maine

Elvir

Wiersma

Day

et al. 2006

Forest Ecology and Management

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“…to different light conditions (Day et al 2005). In particular, it has been reported that light requirements may differ between seed germination and the subsequent seedling growth.…”

Section: Introductionmentioning

confidence: 99%

Optimum light transmittance for seed germination and early seedling recruitment of Pinus koraiensis: implications for natural regeneration

Zhang¹,

Yan²,

Zhu³

2015

iForest

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(1-2) Light transmittance regulated by canopy openness influences the microsite conditions for natural regeneration. The successful transition from seed germination to subsequent seedling recruitment (i.e., early seedling survival and growth) determines the natural regeneration potential. However, there is little information on the effect of varying light transmittance on seed germination and seedling recruitment of Pinus koraiensis Siebold & Zucc. (Korean pine). We aimed to determine the optimum light requirements for this transition process in P. koraiensis to propose practical measures for improving its natural regeneration. The transition process was studied under five light transmittance regimes (100%, 60%, 30%, 15% and 5% of full light) over two consecutive years (2010 and 2011). The highest germination percentage in both years occurred at 30% light transmittance. Generally, mean germination time (MGT) declined with increased light transmittance. Seedling survival exhibited no significant differences between treatments for 1-year-old seedlings, but was higher at 30% than at 5% light transmittance for the 2-year-old seedlings. In contrast, seedling height, root collar diameter and total biomass were highest at 60%-100% light transmittance for both 1-and 2-year-old seedlings. Furthermore, the light transmittance also influenced the growth characteristics of P. koraiensis seedlings through regulating MGT. These results suggest that growth of P. koraiensis seedling requires a higher light transmittance (60-100%) than that required for seed germination, even though 30% light transmittance was favorable to the earlier emergence with larger specific leaf area. Silvicultural measures such as thinning are recommended to increase light irradiance in the forest understorey with the aim of improving the natural regeneration of P. koraiensis.

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“…where the variables are as defined in formulas [5,6]. The efficiency statistic has a theoretical upper bound of 1 indicating a perfect model fit, with a value of 0 indicating the model is no better than the mean.…”

Section: Validation Methods and Metricsmentioning

confidence: 99%

“…where Prob survival ijk is the probability of survival of the jth tree at kth measurement in the ith plot; β 0 , 6 , β 7 are the fixed effects coefficients; b i is the plot level random effect and ε ij is the residual error. The random effects were assumed to be normally distributed as b i~N (0,Ψ 1 ), where Ψ 1 is the variance-covariance matrix associated with the tree level random effect.…”

Section: Mortality Model Specificationmentioning

confidence: 99%

“…The establishment of natural regeneration is best on bare mineral soil, present often after stand replacing disturbances such as fire or harvesting [2]. Water availability, adequate temperatures and herbaceous competition strongly influence initial survival [3][4][5][6]. Early growth is slow, but increases rapidly after the third year, with trees reaching 1.4 m height in 5 to 8 years.…”

Section: Introductionmentioning

confidence: 99%

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Deterministic Models of Growth and Mortality for Jack Pine in Boreal Forests of Western Canada

Strimbu

Bokalo

Comeau

2017

Forests

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Abstract:We developed individual tree deterministic growth and mortality models for jack pine (Pinus banksiana Lamb.) using data from permanent sample plots in Alberta, Saskatchewan and Manitoba, Canada. Height and diameter increment equations were fitted using nonlinear mixed effects models. Logistic mixed models were used to estimate jack pine survival probability based on tree and stand characteristics. The resulting models showed that (1) jack pine growth is significantly influenced by competition; (2) competitive effects differ between species groups; and (3) survival probability is affected by tree size and growth, stand composition, and stand density. The estimated coefficients of selected growth and mortality functions were implemented into the Mixedwood Growth Model (MGM) and the simulated predictions were evaluated against independently measured data. The validation showed that the MGM can effectively model jack pine trees and stands, providing support for its use in management planning.

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Influence of seedbed, light environment, and elevated night temperature on growth and carbon allocation in pitch pine (Pinus rigida) and jack pine (Pinus banksiana) seedlings

Cited by 15 publications

References 35 publications

Effects of enhanced nitrogen deposition on foliar chemistry and physiological processes of forest trees at the Bear Brook Watershed in Maine

Effects of enhanced nitrogen deposition on foliar chemistry and physiological processes of forest trees at the Bear Brook Watershed in Maine

Optimum light transmittance for seed germination and early seedling recruitment of Pinus koraiensis: implications for natural regeneration

Deterministic Models of Growth and Mortality for Jack Pine in Boreal Forests of Western Canada

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