Height estimation in complete stem analysis using annual radial growth measurements

Kariuki, Maina

doi:10.1093/forestry/75.1.63

Cited by 22 publications

(20 citation statements)

References 9 publications

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“…The presence of distinct terminal latewood bands in numerous montane species (Banks 1982(Banks , 1987deBeuzeville 1919;Glasby et al 1988;Horne and Robinson 1990;Ingle and Dadswell 1953;Kariuki 2002;Keith 1982;Mazanec 1966Mazanec , 1968Morrow and LaMarche 1978;Readshaw and Mazanec 1968;Smith 1997;Strasser 1992) supports this assertion. Furthermore, the deterioration in clarity of terminal latewood with decreasing elevation (Banks 1982;Glasby et al 1988) may be overcome by identifying tree rings in eucalypts based on 'reverse latewood' (Brookhouse 2006).…”

Section: Introductionmentioning

confidence: 95%

Crossdating and analysis of eucalypt tree rings exhibiting terminal and reverse latewood

Brookhouse

Brack

2006

Trees

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We investigated crossdating and climate sensitivity in tree-ring series from Eucalyptus delegatensis Baker, R.T. and E. obliqua L'Herit. We first visually crossdated the measured ring width series and then independently verified this crossdating using Xmatch and cross-correlation significance tests. Crossdating was verified in 28 of the 32 study trees. Crossdating success differed between E. delegatensis and E. obliqua. In E. delegatensis crossdating success appears to be related to tree dominance and elevation. In E. obliqua radial azimuth appears to affect crossdating success. We developed two chronologies for each of the species studied. The first of these chronologies was based on all visually crossdated radii and the other on radii for which crossdating had been independently verified. Signal strength was higher in the verified chronologies. Correlation analysis between the verified chronologies and climate data revealed no significant correlation between precipitation and ring width for either species. E. obliqua ring width was significantly correlated with mean minimum and maximum air temperature and vapour pressure deficit during summer of the growing season. The E. delegatensis chronology was significantly correlated with air temperature and frequency of frost during the preceding winter. Ring width in both species was significantly correlated with air temperature during the preceding summer. Potential physiological explanations for these results are discussed. Further study is required to verify the results of climatological analysis and to explore the causes of variation in signal strength within and between trees. Communicated by M. Adams M. Brookhouse ( ) · C. Brack

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Section: Introductionmentioning

confidence: 95%

Crossdating and analysis of eucalypt tree rings exhibiting terminal and reverse latewood

Brookhouse

Brack

2006

Trees

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“…One tree at each DBH group was selected for stem analysis, age determination, and growth analysis (Kariuki 2002). We tried to select trees from diverse DBH classes assuming trees with a small DBH were younger.…”

Section: Data Collectionmentioning

confidence: 99%

Development processes and growth pattern of Pinus densiflora stands in central eastern Korea

et al. 2010

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Stand growth and developmental processes were investigated in Pinus densiflora Siebold et Zucc. stands of different ages in the central eastern region of Korea. Stands were inventoried and five trees per stand were sampled for stem analysis, age estimation, and growth analysis. More than 80% of sampled trees in a stand were established within 3-5 years, and most stands had a single cohort structure. The initial growth of pine seedlings was slow, but the height growth accelerated beyond 2-3 m height, 5-10 years after establishment. Linear growth was maintained until 10-12 m height, at which suppressed trees fell behind and might die out. The young stand was composed of pure pines, while few pine seedlings and saplings were found in the understory of older stands. The peak of diameter growth rate occurred around 5-15 years after tree establishment, implying that competition begins during that period. The pine stand development follows four stages: (1) the young stage when the growth rate increases and peaks; (2) the height competition stage when trees focus on height growth for light while maintaining a narrow DBH and height distribution; (3) the differentiation stage when suppressed trees die out, and the DBH distribution becomes wider; and (4) the mature stage when stands have a multi-canopy structure with a wide DBH and height distribution, while the understory is dominated by other tree species. The changes in growth rates and stand structure through forest development would be implemented to predict alterations of above-ground carbon sequestration rates.

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“…The height versus age curves for the nine sampled trees per plot were examined for uniformity and the presence of suppression or damage. Height-age data were averaged by plot in yearly basis up to the youngest sample tree in the plot and according to the chronological-biological age (Kariuki, 2002). Chronological-biological age is considered as the age measured at the stump of the dominant trees.…”

Section: Height Stem Analysis Datamentioning

confidence: 99%

Growth trends and relationships with environmental factors for scots pine [Pinus sylvestris (L.)] in Brandemburg

2005

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Scots pine growth trends have been determined in Brandenburg (eastern Germany) since the early 1960s. We investigated the interactions between recognized causal factors such temperature, precipitation and foliage nutrient contents in Scots pine and radial and height growth. We performed height stem analysis on 63 Scots pine (Pinus sylvestris L.) trees on seven sites from long-term research plots.Variations in the nutritional condition of the seven stands have been recorded by means of needle analysis. The relationship between thermal, mean monthly temperature, and pluvial conditions, total monthly precipitation, and tree radial increments was analysed, using methods of correlation, response function and principal components analysis. Temporal trends of height growth changes in relation to levels of foliar nitrogen and phosphorous contents were analysed.Evapotranspiration index was correlated with height growth deviation values, with indications of different stands behaviour. A distinct rise in N-levels and in the dry weight of needles has become evident. N and P ratio from declining plots was found to have significantly higher values as compared to that from non-declining plots.Key words: climate, foliar nutrition, productivity, stem analysis. ResumenTendencias en el crecimiento y relaciones con los factores medioambientales para siete lugares de pino silvestre [Pinus Sylvestris (L.)] en BrandenburgoEn este estudio se han calculado las tendencias en el crecimiento del pino silvestre (Pinus sylvestris L.), desde comienzos de los años 60, en el Estado de Brandenburgo (Este de Alemania). Del mismo modo se han investigado las interacciones entre los factores que causan el crecimiento radial y en altura, como son la temperatura, la precipitación y el contenido foliar en nutrientes. Con el fin de conseguir ésto realizamos análisis de troncos sobre 63 pinos en siete lugares con parcelas permanentes de investigación.Las variaciones en las condiciones nutricionales de los siete rodales fueron registradas por medio de análisis de acículas.La relación entre las condiciones térmicas, temperatura mensual media, y pluviales, precipitación mensual total y los incrementos radiales fue analizada, utilizando métodos de correlación, función respuesta y análisis de componentes principales.Las tendencias temporales de los cambios en el crecimiento en altura en relación con los niveles foliares de nitró-geno y fósforo fueron analizadas.El índice de evapotranspiración estuvo correlacionado con los valores de los cambios en el crecimiento en altura, indicando un comportamiento diferenciado entre los diferentes rodales. Un incremento diferenciado de los niveles de N y del peso seco de las acículas ha resultado evidente. El ratio de N y P de las parcelas en declive tenía valores significativamente más altos comparado con las parcelas que no presentaban declive.Palabras clave: clima, nutrición foliar, productividad, análisis de troncos.

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Height estimation in complete stem analysis using annual radial growth measurements

Cited by 22 publications

References 9 publications

Crossdating and analysis of eucalypt tree rings exhibiting terminal and reverse latewood

Crossdating and analysis of eucalypt tree rings exhibiting terminal and reverse latewood

Development processes and growth pattern of Pinus densiflora stands in central eastern Korea

Growth trends and relationships with environmental factors for scots pine [Pinus sylvestris (L.)] in Brandemburg

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