Biomass allometric equations for 10 co-occurring tree species in Chinese temperate forests

Wang, Chuankuan

doi:10.1016/j.foreco.2005.10.074

Cited by 382 publications

(354 citation statements)

References 14 publications

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“…Existing allometric equations for larch were developed for mature stands (Wang 2006) and thus cannot be applied to young saplings. Therefore, new allometric models are needed.…”

Section: Field Samplingsmentioning

confidence: 99%

Quantifying ecological drivers of ecosystem productivity of the early‐successional boreal Larix gmelinii forest

Liu

Yang

2014

Ecosphere

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Citation: Liu, Z., and J. Yang. 2014. Quantifying ecological drivers of ecosystem productivity of the early-successional boreal Larix gmelinii forest. Ecosphere 5(7):84. http://dx.doi.org/10.1890/ES13-00372.1Abstract. Wildfire area and severity are projected to increase in Eurasian larch (Larix spp.) forest, potentially altering ecosystem dynamics and carbon balance under warming climate. However, the ecological drivers that influence post-fire ecosystem productivity in larch forest are poorly understood. Here we assess the influence of several factors controlling plant aboveground net primary productivity (ANPP) on the early successional stage of Dahurian larch (Larix gmelinii ) forests following fire. We quantified the relative importance of fire severity, competition, topography, and soil inorganic N [NH 4 þ and NO 3 À ] availability on ecosystem productivity 11 years post-fire in a Dahurian larch forest of Northeast China using a boosted regression trees technique. Results showed that fire severity had the strongest negative influence on ANPP of saplings, followed by a positive influence of soil inorganic N availability and negative influence of elevation. Sapling density had the strongest negative influence on ANPP of understory (shrub and grass), followed by positive influence of aspect and inorganic N availability. N may limit ANPP of sapling, but not of understory vegetation. Fire severity had a dominant influence on the proportion of total ANPP contributed by the understory. Fire severity was positively correlated to understory productivity and proportion of total ANPP contributed by understory, but negatively correlated to sapling productivity. Our analysis suggests that increasing fire severity may increase understory productivity, while decreasing the sapling productivity, which may contribute to the potential changes of vegetation type and carbon cycling in Dahurian larch forests of Northeast China under warming climate.

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“…Existing allometric equations for larch were developed for mature stands (Wang 2006) and thus cannot be applied to young saplings. Therefore, new allometric models are needed.…”

Section: Field Samplingsmentioning

confidence: 99%

Quantifying ecological drivers of ecosystem productivity of the early‐successional boreal Larix gmelinii forest

Liu

Yang

2014

Ecosphere

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“…The parent material is granite bedrock and the soil is Haplumbrepts or Eutroboralfs. The climate is continental monsoon climate with mean annual values: 700 mm precipitation, 884 mm evaporation , and 2.8 • C air temperature (Wang, 2006).…”

Section: Study Area Descriptionmentioning

confidence: 99%

“…In this study, we sampled trees from stands with 50−60 years old age, 1800−3100 trees ha −1 density, 12−22 cm mean diameter at breast height (DBH), and 27−40 m 2 ha −1 basal area. Refer to Wang (2006) for details.…”

Section: Study Area Descriptionmentioning

confidence: 99%

Allométrie du bois de cœur et de l’aubier pour sept espèces d’arbres tempérées chinoises

Wang

Zhang

et al. 2010

Ann. For. Sci.

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Abstract• Allometry of sapwood/heartwood is essential for understanding tree growth, water transport and carbon allocation, timber production and use, but such an allometry is lacking for Chinese temperate tree species.• We studied the allometry and development of heartwood and sapwood for seven Chinese temperate tree species: Korean pine (Pinus koraiensis Sieb. et Zucc), Dahurian larch (Larix gmelinii Rupr.), Japanese elm (Ulmus davidiana Planch var. japonica (Rehd.) Nakai), Manchurian ash (Fraxinus mandshurica Rupr.), Manchurian walnut (Juglans mandshurica Maxim.), Amur cork-tree (Phellodendron amurense Rupr.), and Mongolian oak (Quercus mongolica Fisch.).• All heartwood parameters investigated, including heartwood radius (HR), heartwood formation rate (HFR), heartwood ring number (HRN), heartwood initiation age (HIA), and heartwood volume ratio (HVR), were positively correlated with tree cambial age (CA). The HR, sapwood width (SW), sapwood area (SA), heartwood and sapwood volumes were significantly related to stem diameter at breast height (DBH) or xylem diameter. There was a polynomial relationship between the sapwood ring longevity (SRL) and sapwood ring number (SRN). However, most of the allometric relationships were species-dependent. The hardwood formation patterns were different between coniferous and broadleaved tree species. A power function was suitable to scale SA from DBH, but the exponent varied from 1.32 for the larch to 2.19 for the cork-tree.• Our allometry provided a practical means to assess wood development and related physiology for the temperate tree species. • L'allométrie de l'aubier/bois de coeur est essentielle pour comprendre la croissance de l'arbre, le transport de l'eau et l'allocation, la production et l'usage du bois, mais cette allométrie est manquante pour les espèces d'arbres chinoises de milieu tempéré. Mots• Nous avons étudié l'allométrie et le développement du bois de coeur et de l'aubier pour sept espèces d'arbres tempérées chinoises : le pin de Corée (Pinus koraiensis Sieb. et Zucc), le mélèze de Dahurie (Larix gmelinii Rupr.), l'orme du Japon (Ulmus davidiana Planch var. japonica (Rehd.) Nakai), le frêne de Mandchourie (Fraxinus mandshurica Rupr.), le noyer de Mandchourie (Juglans mandshurica Maxim.), le phellodendron de l'Amur (Phellodendron amurense Rupr.), et le chêne de Mongolie (Quercus mongolica Fisch.).• Les paramètres du bois de coeur étudiés sont le rayon (HR), le taux de formation (HFR), l'âge d'initiation (HIA) et le ratio du volume (HVR) : ils sont corrélés positivement à l'âge cambial (CA). Le rayon du bois de coeur (HR), la largeur d'aubier (SW), la surface d'aubier (SA), les volumes de bois de coeur et d'aubier sont significativement liés au diamètre à hauteur de poitrine (DBH). Il y a une relation polynomiale entre la durée de vie des cernes d'aubier (SRL) et le nombre de cernes (SRN). Cependant la plus part des relations allométriques dépendent des espèces. Le patron de formation du bois de coeur diffère entre résineux et feuillus. Une fonction puissanc...

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“…Regarding root mean squared errors calculated for aboveground woody biomass estimates of aspen trees, the allometric biomass equations provided by Ruark & Bockheim (1988) [46] and Wang (2006) [49] performed closest to the allometric biomass equations developed in this study (Figure 6). Their relative root mean squared error ranged between 19% and 21%, and was thus 40% to 50% higher compared to the root mean squared error produced by allometric biomass equations developed in this study.…”

Section: Comparison With Other Studiesmentioning

confidence: 56%

“…Their relative root mean squared error ranged between 19% and 21%, and was thus 40% to 50% higher compared to the root mean squared error produced by allometric biomass equations developed in this study. With respect to branch biomass all equations from the literature produced at least 18 kg and thus 150% larger root mean squared errors than equations developed in this study [49].…”

Section: Comparison With Other Studiesmentioning

confidence: 63%

Allometries for Widely Spaced Populus ssp. and Betula ssp. in Nurse Crop Systems

Stark

Nothdurft²,

Bauhus

2013

Forests

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Nurse crops of widely spaced pioneer trees are a silvicultural approach to protect the regeneration of frost sensitive target tree species. If overstorey nurse crops are harvested, they can provide additional short-term benefits through increased biomass production, e.g., for bioenergy. However, the intensification of biomass exports from forests might impact negatively on ecosystem nutrient pools. Thus, precise allometric biomass equations are required to quantify biomass and nutrient removals. Since an analysis of published allometric equations developed for typical, dense aspen or birch forests showed that the tree height-to-diameter ratio correlated positively and the proportion of branch biomass negatively with stand density, we developed new allometric biomass equations for widely spaced aspen and birch growing at 4 × 4 m spacing. These equations yielded a root mean squared error of 13% when predicting total aboveground woody biomass for our sample trees. In contrast, the corresponding root mean squared error produced by allometric biomass equations from the literature ranged between 17% to 106% of actual dry biomass. Our results show that specific allometric biomass equations are needed for widely spaced pioneer trees both for accurate estimates of biomass and the nutrients contained within.

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Biomass allometric equations for 10 co-occurring tree species in Chinese temperate forests

Cited by 382 publications

References 14 publications

Quantifying ecological drivers of ecosystem productivity of the early‐successional boreal Larix gmelinii forest

Quantifying ecological drivers of ecosystem productivity of the early‐successional boreal Larix gmelinii forest

Allométrie du bois de cœur et de l’aubier pour sept espèces d’arbres tempérées chinoises

Allometries for Widely Spaced Populus ssp. and Betula ssp. in Nurse Crop Systems

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