Drivers of individual tree growth and mortality in an uneven-aged, mixed-species conifer forest

Fien, Erin; Fraver, Shawn; Teets, Aaron; Weiskittel, Aaron R.; Hollinger, David Y.

doi:10.1016/j.foreco.2019.06.043

Cited by 25 publications

(25 citation statements)

References 79 publications

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“…Understanding the factors that should be included into growth models to explain patterns in mixed-species forest with high species richness is critical for modeling ecological dynamics in such stands [16]. In uneven-aged, mixed-species natural forests, tree-to-tree variation in growth can be considerable within and among species, as well as spatially within a stand (e.g., [17]). This variability results from the structural and compositional complexity that often characterize these forests (e.g., [13,[17][18][19]).…”

Section: Introductionmentioning

confidence: 99%

“…In uneven-aged, mixed-species natural forests, tree-to-tree variation in growth can be considerable within and among species, as well as spatially within a stand (e.g., [17]). This variability results from the structural and compositional complexity that often characterize these forests (e.g., [13,[17][18][19]). In this context, an improved understanding of the factors regulating variability in growth rates can lead to better anticipation of individual tree success and community dynamics [17].…”

Section: Introductionmentioning

confidence: 99%

“…This variability results from the structural and compositional complexity that often characterize these forests (e.g., [13,[17][18][19]). In this context, an improved understanding of the factors regulating variability in growth rates can lead to better anticipation of individual tree success and community dynamics [17]. Such understanding can help in developing biometric tools to support forest management decision-making in mixed-species stands, including the development of management strategies based on natural stand dynamics (e.g., [18,20,21]).…”

Section: Introductionmentioning

confidence: 99%

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Individual Tree Diameter and Height Growth Models for 30 Tree Species in Mixed-Species and Uneven-Aged Forests of Mexico

Briseño-Reyes

Corral-Rivas

Solís-Moreno

et al. 2020

Forests

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Lack of knowledge of individual tree growth in species-rich, mixed forest ecosystems impedes their sustainable management. In this study, species-specific models for predicting individual diameter at breast height (dbh) and total tree height (h) growth were developed for 30 tree species growing in mixed and uneven-aged forest stands in Durango, Mexico. Growth models were also developed for all pine, all oaks, and all other species of the genus Arbutus (strawberry trees). A database of 55,158 trees with remeasurements of dbh and h of a 5-year growth period was used to develop the models. The data were collected from 217 stem-mapped plots located in the Sierra Madre Occidental (Mexico). Weighted regression was used to remove heteroscedasticity from the species-specific dbh and h growth models using a power function of the tree size independent variables. The final models developed in the present study to predict dbh and total tree height growth included size variables, site factors, and competition variables in their formulation. The developed models fitted the data well and explained between 98 and 99% and of the observed variation of dbh, and between 77 and 98% of the observed variation of total tree height for the studied species and groups of species. The developed models can be used for estimating the individual dbh and h growth for the analyzed species and can be integrated in decision support tools for management planning in these mixed forest ecosystems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Individual Tree Diameter and Height Growth Models for 30 Tree Species in Mixed-Species and Uneven-Aged Forests of Mexico

Briseño-Reyes

Corral-Rivas

Solís-Moreno

et al. 2020

Forests

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“…The idea that soil attributes, especially soil texture, are critical for the partitioning of water in the soil-plant system and the balance between transpiration and evaporation is not new. Noy-Meir [18] suggested the "inverse texture hypothesis" to account for higher productivity on coarse-textured soils compared to fine-textured ones under conditions of low rainfall and vice versa.Since survival and growth are known to be related [19], the working hypothesis was that survival and growth are similarly affected by the same intrinsic and extrinsic factors, namely initial height at planting and age, as well as site characteristics complemented by rainfall. Since Greek fir is an understudied species and the planting material originates from a natural population (Mainalo, Peloponnese), this work also provides insights into the natural variability of early growth and survival patterns of the species, apart from its focus on reforestation.…”

mentioning

confidence: 99%

“…Since survival and growth are known to be related [19], the working hypothesis was that survival and growth are similarly affected by the same intrinsic and extrinsic factors, namely initial height at planting and age, as well as site characteristics complemented by rainfall. Since Greek fir is an understudied species and the planting material originates from a natural population (Mainalo, Peloponnese), this work also provides insights into the natural variability of early growth and survival patterns of the species, apart from its focus on reforestation.…”

mentioning

confidence: 99%

Determination of the Environmental Factors that Affect the Growth and Survival of Greek Fir Seedlings

Detsis

Efthimiou

Theodoropoulou

et al. 2020

Land

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Forests in the montane-Mediterranean zone have only recently began to be affected by wildfires, therefore the knowledge necessary for restoration projects is missing. The aim of the study was to assess the effects of factors related to seedling attributes, weather conditions and site suitability on seedling performance. The characterisation of sites was based on bedrock and soil clay content as well as pre-fire vegetation. Apical growth and survival of seedlings was monitored for four years in Parnitha National Park. The parameters of a linear mixed model were estimated using annual apical growth of seedlings surviving in the end of the study as the dependent variable and type of site, rainfall, initial seedling height and age as explanatory ones. A quantile regression model using all the data available was estimated for each year of study, taking into account only initial height and site type as well as a logistic regression model of survival. The findings indicate that the growth of Greek fir seedlings depends on May rainfall mediated by soil clay content, which in turn depends on bedrock, which is consistent with the “inverse texture hypothesis”. Sites with low soil clay content were always more beneficial for survival, which was stronger affected by summer–autumn rainfall. In both contexts, drought stress due to soil clay content fades with increasing age. Sites that were not fir dominated prior to fire proved unsuitable also for planting fir seedlings. A minor part of the observed variability could be associated with the initial height of seedlings, especially for seedlings showing high rates of apical growth.

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Scale‐dependent effects of neighborhood biodiversity on individual tree productivity in a coniferous and broad‐leaved mixed forest in China

Fan

Tan

Zhang

et al. 2020

Ecology and Evolution

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The relationship between biodiversity and productivity has stimulated an increasing body of research over the past decades, and this topic still occupies a central place in ecology. While most studies have focused on biomass production in quadrats or plots, few have investigated the scale‐dependent relationship from an individual plant perspective. We present an analysis of the effects of biodiversity (species diversity and functional diversity) on individual tree growth with a data set of 16,060 growth records from a 30‐ha temperate forest plot using spatially explicit individual tree‐based methods. A significant relationship between species diversity and tree growth was found at the individual tree level in our study. The magnitude and direction of biodiversity effects varies with the spatial scale. We found positive effects of species diversity on tree growth at scales exceeding 9 m. Individual tree growth rates increased when there was a greater diversity of species in the neighborhood of the focal tree, which provides evidence of a niche complementarity effect. At small scales (3–5 m), species diversity had negative effects on tree growth, suggesting that competition is more prevalent than complementarity or facilitation in these close neighborhoods. The results also revealed many confounding factors which influence tree growth, such as elevation and available sun light. We conclude that the use of individual tree‐based methods may lead to a better understanding of the biodiversity‐productivity relationship in forest communities.

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Drivers of individual tree growth and mortality in an uneven-aged, mixed-species conifer forest

Cited by 25 publications

References 79 publications

Individual Tree Diameter and Height Growth Models for 30 Tree Species in Mixed-Species and Uneven-Aged Forests of Mexico

Individual Tree Diameter and Height Growth Models for 30 Tree Species in Mixed-Species and Uneven-Aged Forests of Mexico

Determination of the Environmental Factors that Affect the Growth and Survival of Greek Fir Seedlings

Scale‐dependent effects of neighborhood biodiversity on individual tree productivity in a coniferous and broad‐leaved mixed forest in China

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