Short-term responses of Picea asperata seedlings of different ages grown in two contrasting forest ecosystems to experimental warming

Xu, Zhenfeng; Yin, Huajun; Xiong, Pan; Wan, Chuan; Liu, Qing

doi:10.1016/j.envexpbot.2011.10.011

Cited by 39 publications

(41 citation statements)

References 43 publications

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“…These response ratios were higher than the normalized mean response ratio (12 %) of R S derived from experimental warming of 2°C in temperate forests (Wang et al 2014), supporting the observation that young tree seedlings in early development stages are more responsive to increasing temperature than are mature or old growth stands (Xu et al 2012).…”

Section: Discussionsupporting

confidence: 72%

“…To understand possible changes in the eco-physiological traits and biogeochemical properties of forest ecosystems, a growing number of warming manipulation studies have been conducted using tree seedlings Fisichelli et al 2014). Previous warming studies have suggested that elevated temperatures stimulate tree growth and photosynthesis, and extend the growing season of coniferous (Xu et al 2012;Yin et al 2008) and deciduous tree seedlings (e.g., Danyagri and Dang 2014;Kaye and Wagner 2014;Morin et al 2010). However, the magnitude of these warming effects may differ according to plant functional group and biome (Lin et al 2010;Way and Oren 2010).…”

Section: Introductionmentioning

confidence: 99%

“…For example, a few recent studies have reported warming-induced soil respiration in silver birch, Norway spruce, and Scots pine seedlings growing in similar boreal ecosystems (Pumpanen et al 2012), and in a dragon spruce plantation and natural forests (Xu et al 2012;Yin et al 2013). Soil respiration (R S , soil CO 2 efflux) is an important natural source of CO 2 atmospheric emissions, as well as a representative indicator of soil biological activity (Schlesinger and Andrews 2000).…”

Section: Introductionmentioning

confidence: 99%

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Effects of experimental warming on soil respiration and biomass in Quercus variabilis Blume and Pinus densiflora Sieb. et Zucc. seedlings

Noh

Lee

et al. 2016

Annals of Forest Science

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Section: Discussionsupporting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of experimental warming on soil respiration and biomass in Quercus variabilis Blume and Pinus densiflora Sieb. et Zucc. seedlings

Noh

Lee

et al. 2016

Annals of Forest Science

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“…Responses of the net photosynthetic rate to warming also varied among species, ontogenetic stage, density, and light conditions (Wang et al, 1995;Bronson and Gower, 2010;Wertin et al, 2011;Xu et al, 2012;Chung et al, 2013). In addition to the effect of physiological characteristics, the net photosynthetic rate is affected by the autotrophic respiration rate, water stress, and acclimation (Saxe et al, 2001;Way and Oren, 2010).…”

Section: Photosynthetic Responsesmentioning

confidence: 99%

Species-specific growth and photosynthetic responses of first-year seedlingsof four coniferous species to open-field experimental warming

Han¹,

Lee²,

Yoon³

et al. 2015

Turk J Agric For

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Temperature increase due to climate change may affect the growth and physiological traits of trees. To cope with climate change, it is important to understand the responses of trees to these changes, as well as how these responses vary among species, functional groups, and biomes. In this study, we aimed to examine the species-specific growth and photosynthetic responses of firstyear seedlings of 4 coniferous species to future temperature increase by conducting an open-field experimental warming study. The air temperature in the warmed plots was maintained at 3.02 °C higher than that in the control plots with an open-field experimental warming system. The seeds of Pinus densiflora, Pinus koraiensis, Abies holophylla, and Abies koreana were planted in 2012, and the effects on growth, biomass allocation, leaf area, net photosynthetic rate, and chlorophyll contents of first-year seedlings were measured. Compared to the other species, P. densiflora showed pronounced responses to warming after the growing period, including increase in root collar diameter (RCD) and seedling height respectively by 10% and 6%, total biomass by 45%, net photosynthetic rate by 61%, and total chlorophyll content by 45%. For P. koraiensis, RCD, seedling height, and total chlorophyll contents increased by 7%, 5%, and 20% in warmed plots, respectively. A. holophylla showed an increase in RCD by 7%, whereas A. koreana responded inconsistently to warming. Changes in the seedling height to diameter ratio, organ-specific biomass, leaf area, and specific leaf area were also species-dependent. In addition, altered growth throughout the observation period was due to acclimation and phenological change. This suggests that speciesspecific growth responses to warming are affected by altered net photosynthetic rate, chlorophyll contents, and leaf area. Species-specific responses of first-year seedlings of 4 coniferous species to warming and the relationship between growth and photosynthesis might be applied to estimate the growth and distribution of coniferous species after future temperature rises.

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“…L'inclusion de plantes de différents âges dans un nouveau design expérimental permettrait de vérifier si la réponse aux traitements (ex. chauffage du sol et de l'air) reste la même à plusieurs stades de développement (Xu et al 2012). De plus, à l'intérieur du même peuplement, des arbres qui appartiennent à différentes classes sociales (dominant, supprimé ou intermédiaire) présenteraient aussi des différences dans la phénologie de la xylogenèse (Rathgeber et al 2011).…”

Section: Perspectives De Rechercheunclassified

Wood formation in black spruce :

Lupi¹

2012

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Remerciements"The thing the ecologically illiterate don't realize about an ecosystem is that it's a system. A system! A system maintains a certain fluid stability that can be destroyed by a misstep in just one niche. A system has order, a flowing from point to point. If something dams the flow, order, collapses. The untrained might miss that collapse until it was too late. That's why the highest function of ecology is the understanding of consequences."Parclot Kynes in "Appendix I: The Ecology of Dune", in the science fiction novel "Dune", written by Frank Herbert Per ultimo, ma non per importanza, La miafamiglia. Voglio in particolare ricordare mia nonna Anna, i miei genitori, Leonello e Nives, e mio fratello Roby, che mi hanno sostenuto e consigliato. RésuméLa croissance des arbres dans la forêt boréale est souvent considérée limitée par les basses températures et par la disponibilité en azote (N). Avec le réchauffement climatique, la disponibilité en azote pourrait augmenter grâce à l'effet positif d'une augmentation de la température du sol sur la minéralisation et la décomposition de la matière organique. De plus, les dépôts azotés d'origine anthropique ont grandement altéré le cycle de l'azote et la nutrition des plantes dans les deux derniers siècles et ils devraient augmenter dans le futur. Il est donc primordial de comprendre si, et dans quelle mesure, les perturbations d'origine anthropique (réchauffement climatique et augmentation de dépôts azotés) peuvent influencer la croissance de la forêt boréale. Le but de cette thèse a été de comprendre de quelle manière la formation du cerne ligneux et la productivité en termes de bois chez Pépinette noire (Picea mariana (Mill.) BSP) pourraient varier dans le futur sous l'influence des perturbations d'origine anthropique évoquées ci-dessus. La recherche a eu lieu en forêt boréale dans deux peuplements équiennes constitués d'épinettes noires adultes, dans la région du Saguenay-Lac-St-Jean, au Québec (Canada). Premièrement, nous avons déterminé les dynamiques actuelles de formation du cerne de croissance chez l'épinette noire, afin de pouvoir décrire d'éventuelles différences entre les deux sites et connaître l'impact de la variabilité climatique interannuelle (Chapitre II). Ces résultats nous ont permis de développer un modèle qui analyse la relation entre la phénologie et la productivité du cerne de croissance dans les conditions actuelles. Ce modèle, en plus de fournir une nouvelle clé d'interprétation de la xylogenèse dans les conditions actuelles, a permis d'interpréter de façon plus approfondie les résultats d'une expérience de manipulation de la température du sol et des dépôts azotés (Chapitres III et IV) simulant les conditions attendues pour le futur.Dans les deux sites étudiés la dynamique de formation du cerne de croissance était similaire. Toutefois, la différence entre les sites, d'environ deux à trois semaines, dans la date de fonte de la neige, se reflétait par un délai d'une à deux semaines dans le début de l'activité cambiale observé dans...

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Short-term responses of Picea asperata seedlings of different ages grown in two contrasting forest ecosystems to experimental warming

Cited by 39 publications

References 43 publications

Effects of experimental warming on soil respiration and biomass in Quercus variabilis Blume and Pinus densiflora Sieb. et Zucc. seedlings

Effects of experimental warming on soil respiration and biomass in Quercus variabilis Blume and Pinus densiflora Sieb. et Zucc. seedlings

Species-specific growth and photosynthetic responses of first-year seedlingsof four coniferous species to open-field experimental warming

Wood formation in black spruce :

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