Aboveground biomass and nutrient accumulation in an age sequence of paper birch (Betula papyrifera) in the Interior Cedar Hemlock zone, British Columbia

Wang, J.R.; Zhong, A.L.; Simard, Suzanne W.; Kimmins, J. P.

doi:10.1016/0378-1127(96)03703-6

Cited by 60 publications

(45 citation statements)

References 7 publications

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“…It has also been reported that the contents of these nutrients are generally highest in the actively growing parts of the trees (e.g., leaves) and lowest in the structural and not actively growing parts (e.g., stem wood) (Wang et al 1996;Wang and Klinka 1997;Laclau et al 2001). C/N has been used to estimate the long-term NUE (Livingston et al 1999), as this ratio indicates the amount of carbon fixed per unit nitrogen (Patterson et al 1997;Chen et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Duan

et al. 2009

Trees

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Quercus aquifolioides Rehder & E.H. Wilson, an evergreen alpine and subalpine species, occupies a wide range of habitats in the Wolong Nature Reserve, southwestern China. We measured age-related carbon (C) and nutrient (N, P, K, Mg and Ca) contents, C/N, carbon isotope composition (d 13 C) and specific leaf area (SLA) in the leaves and branches of Q. aquifolioides trees along an altitudinal gradient ranging from 2,000 to 3,600 m. The results showed that both age and altitude significantly affected the morphological and physiological properties of Q. aquifolioides. Young tissues possessed higher contents of N, P, K and Mg, lower Ca contents, both on a dry mass basis (subscript ''M'') and on a unit area basis (subscript ''A''), and lower C/N and d13 C values than did the old ones. The levels of N M and d 13 C increased with increasing altitude above 2,800 m, but decreased with increasing altitude below 2,800 m. In contrast, C/N and SLA showed opposite patterns, and other nutrient contents, including P M , K M , Ca M and Mg M , exhibited irregular changes with elevation. On the other hand, d13 C was positively correlated with N M in both leaves and branches, and negatively correlated with SLA in leaves along the altitudinal gradient. Our results also showed that both the Mg M level of leaves and the Ca M level of branches, besides the functional correlations between the N M level and the structure of leaves, are responsible for or accompanied by variation in d 13 C. In addition, d 13 C was negatively correlated with C/N in both leaves and branches along an altitudinal gradient. It follows that high-altitude plants achieve higher water use efficiency (WUE) at the expense of decreasing nitrogen use efficiency (NUE, derived from C/N), whereas plants at 2,800 m can maintain relatively higher NUE but lower WUE. These characteristics probably reflect the physiological potential of Q. aquifolioides for vigorous growth and metabolism at the optimum altitude (around 2,800 m). With increasing distance from the optimum altitude, NUE decreases. The observed intraspecific variation in the trade-off between WUE and NUE may partially explain the altitudinal distribution of Q. aquifolioides in relation to moisture and nutrient availability.

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Section: Discussionmentioning

confidence: 99%

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Duan

et al. 2009

Trees

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“…DBH appeared to be the best predictor of root system biomass and biomass increment, as is commonly found for the biomass of aerial tree compartments [2,14,16,25,32,37] and also for the few studies dealing with root systems [9,30]. Generally, linear relationships can be adjusted after a two-sided logarithmic transformation [2,4,30,35].…”

Section: Biomass and Biomass Increment Of Root Systemsmentioning

confidence: 90%

Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North-East France

Goff

Ottorini

2001

Ann. For. Sci.

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-This study is part of a larger project aimed at quantifying the biomass and biomass increment of an experimental beech stand aged 30 years, and comparing the carbon sequestration in trees to carbon fluxes. The below ground part of trees is expected to play an important role in carbon sequestration. A method has been developed to estimate the biomass and biomass increment of coarse, small and fine roots of trees from root system excavations of sampled trees of different crown classes. The biomass and biomass increment of broken root ends during excavation was estimated from the diameter of the roots at the broken points. Equations were then established relating the biomass and biomass increment of the different root categories to tree DBH. These equations were then used to estimate the root biomass and biomass increment of the experimental stand from stem inventory, for the different root categories. Trees from dominant and codominant crown classes contribute for more than 80% to below ground biomass and biomass increment of the stand. root system / biomass / biomass increment / biomass distribution / Fagus sylvatica Résumé -Biomasse et accroissement en biomasse du système racinaire dans un peuplement de hêtre du Nord-Est de la France. Cette étude fait partie d'un projet plus vaste ayant pour objectif l'estimation de la biomasse aérienne et souterraine d'un peuplement expérimental de hêtre de 30 ans et de son accroissement, pour comparer la quantité de carbone séquestrée annuellement dans les arbres aux flux de carbone mesurés par les échanges gazeux. La partie souterraine des arbres paraît jouer un rôle important dans la séquestration du carbone. Une méthode a été développée pour estimer la biomasse et l'accroissement en biomasse des racines de différentes catégories de grosseur grâce à l'extraction du sol de systèmes racinaires d'un échantillon d'arbres représentatif des diffé-rentes classes de statut social du peuplement. La biomasse et l'accroissement en biomasse des parties de racines cassées lors de l'extraction du sol ont pu être estimés, pour chaque catégorie de racine, à partir du diamètre des racines au niveau de la cassure. Des relations ont ensuite été établies entre la biomasse racinaire et son accroissement, pour chaque catégorie de racines, et le diamètre de l'arbre à 1,30 m. Ces équations ont été utilisées pour estimer les biomasses au niveau du peuplement à partir de l'inventaire des arbres. Les arbres dominants et codominants du peuplement contribuent pour plus de 80 % à la biomasse souterraine du peuplement et à son accroissement. système racinaire / biomasse / accroissement de la biomasse / répartition de la biomasse / Fagus sylvatica

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“…Bark usually has higher nutrient concentrations than the rest of the stem [13,40,44,52], while differences between heartwood and sapwood seem to be more variable depending on species and nutrient elements [31].…”

Section: Nutrients In the Stem Woodmentioning

confidence: 99%

“…Stem biomass usually has the lowest concentrations of elements compared with other aboveground biomass compartments [6,38,44,52]. The distribution of nutrients between different compartments can, however, also be species dependent, reflecting ecological differences between species.…”

Section: Introductionmentioning

confidence: 99%

Macronutrients in tree stems and foliage: a comparative study of six temperate forest species planted at the same sites

Hagen-Thorn

Armolaitis

Callesen³

et al. 2004

Ann. For. Sci.

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-Common European tree species (oak, ash, beech, birch, lime and spruce) planted in adjacent stands on six sites were compared in terms of macronutrient concentrations in foliar and stem wood (including bark) biomass. The nutrient concentrations in both biomass compartments were much more dependent on species than on site although soil conditions differed between the sites. Differences between species regarding stem wood nutrient concentrations only partly corresponded to the differences in species foliage. The concentrations in spruce were considerably lower than in deciduous species, except P in foliage, and Ca in both stem wood and foliar biomass. Differences were also observed between the deciduous species both regarding foliar and stem wood nutrient concentrations. The differences should be considered when modelling nutrient circulation in forest stands and when evaluating the long-term sustainability of forest management. nutrient / hardwood / Norway spruce / stemwood / foliage Résumé -Éléments minéraux dans le tronc et le feuillage : une étude comparative de six essences tempérées plantées sur les mêmes sites. Les essences européennes communes (chêne, frêne, hêtre, bouleau, tilleul et épicéa commun) plantées dans des parcelles adjacentes sur six sites ont été comparées en termes de concentrations en macro-éléments minéraux dans la biomasse foliaire et dans le tronc (écorce y compris). Ces concentrations dépendaient plus de l'espèce que du site, bien que les conditions de sol étaient différentes entre les sites. Les différences entre les espèces observées dans le bois de tige ne correspondaient que partiellement à celles observées dans le feuillage. L'épicéa commun était plus pauvre en éléments minéraux que les feuillus excepté concernant le P dans le feuillage, et le Ca dans le tronc ainsi que dans la biomasse foliaire. Des différences de concentrations minérales ont également été observées entre les espèces de feuillus dans le bois ainsi que dans le feuillage. Ces différences devraient être considérées pour la modélisation de la circulation des éléments minéraux dans les peuplements forestiers et dans l'évaluation des aménagements forestiers dans le cadre d'une gestion durable. nutriment / feuillu / épicéa commun / bois de tige / feuillage e

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Aboveground biomass and nutrient accumulation in an age sequence of paper birch (Betula papyrifera) in the Interior Cedar Hemlock zone, British Columbia

Cited by 60 publications

References 7 publications

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Age-related nutrient content and carbon isotope composition in the leaves and branches of Quercus aquifolioides along an altitudinal gradient

Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North-East France

Macronutrients in tree stems and foliage: a comparative study of six temperate forest species planted at the same sites

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