Morphological and physiological response of Acer catalpifolium Rehd. Seedlings to water and light stresses

Zhang, Yuyang; Yu, Tao; Ma, Wenqi; Tian, Cheng; Sha, Zhimin; Li, Junqing

doi:10.1016/j.gecco.2019.e00660

Cited by 14 publications

(12 citation statements)

References 30 publications

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“…Among the possible improvements, mortality representation could be enhanced by considering hydraulic failure during severe droughts (Martin-StPaul et al, 2017). Another model improvement would be to take the interaction between the water cycle and the phenology into account by integrating a drought effect on budburst, leaf yellowing and fall as reported in some observation studies (Sanz-Pérez and Castro-Díez, 2010; Xie et al, 2018).…”

Section: Simulating Phenology and Water Balance In Heterogeneous Standsmentioning

confidence: 99%

“…Positive interactions may also occur when the neighbouring trees improve the growing conditions of the target trees (facilitation;Pretzsch et al, 2013). Finally, trees adapt their morphology and physiological behaviour to the local environmental conditions by optimizing carbon allocation in order to maximize the acquisition of the limiting resource (Petritan et al, 2009;Yuang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Complementarity in water use can occur when trees of different size and species take up water from different soil layers (Schwendenmann et al, 2015). This can also result in facilitation through hydraulic lift (Zapater et al, 2011). Mixed and structured stands promote facilitation and complementarity in water use but can also lead to faster exploitation of soil water reserves (Schäfer et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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HETEROFOR 1.0: a spatially explicit model for exploring the response of structurally complex forests to uncertain future conditions – Part 2: Phenology and water cycle

Wergifosse

André²,

Beudez³

et al. 2020

Geosci. Model Dev.

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Abstract. Climate change affects forest growth in numerous and sometimes opposite ways, and the resulting trend is often difficult to predict for a given site. Integrating and structuring the knowledge gained from the monitoring and experimental studies into process-based models is an interesting approach to predict the response of forest ecosystems to climate change. While the first generation of models operates at stand level, one now needs spatially explicit individual-based approaches in order to account for individual variability, local environment modification and tree adaptive behaviour in mixed and uneven-aged forests that are supposed to be more resilient under stressful conditions. The local environment of a tree is strongly influenced by the neighbouring trees, which modify the resource level through positive and negative interactions with the target tree. Among other things, drought stress and vegetation period length vary with tree size and crown position within the canopy. In this paper, we describe the phenology and water balance modules integrated in the tree growth model HETEROFOR (HETEROgenous FORest) and evaluate them on six heterogeneous sessile oak and European beech stands with different levels of mixing and development stages and installed on various soil types. More precisely, we assess the ability of the model to reproduce key phenological processes (budburst, leaf development, yellowing and fall) as well as water fluxes. Two two-phase models differing regarding their response function to temperature during the chilling period (optimum and sigmoid functions) and a simplified one-phase model are used to predict budburst date. The two-phase model with the optimum function is the least biased (overestimation of 2.46 d), while the one-phase model best accounts for the interannual variability (Pearson's r=0.68). For the leaf development, yellowing and fall, predictions and observations are in accordance. Regarding the water balance module, the predicted throughfall is also in close agreement with the measurements (Pearson's r=0.856; bias =-1.3 %), and the soil water dynamics across the year are well reproduced for all the study sites (Pearson's r was between 0.893 and 0.950, and bias was between −1.81 and −9.33 %). The model also reproduced well the individual transpiration for sessile oak and European beech, with similar performances at the tree and stand scale (Pearson's r of 0.84–0.85 for sessile oak and 0.88–0.89 for European beech). The good results of the model assessment will allow us to use it reliably in projection studies to evaluate the impact of climate change on tree growth in structurally complex stands and test various management strategies to improve forest resilience.

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Section: Simulating Phenology and Water Balance In Heterogeneous Standsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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HETEROFOR 1.0: a spatially explicit model for exploring the response of structurally complex forests to uncertain future conditions – Part 2: Phenology and water cycle

Wergifosse

André²,

Beudez³

et al. 2020

Geosci. Model Dev.

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“…A . catalpifolium cannot adapt to cold, hot, or dry conditions or environments with strong solar radiation (Zhang et al., 2019), which limits them from spreading to the Chengdu Plain on the East, Qinghai‐Tibet Plateau on the West, or the cold, dry North. Only one arc corridor allows A .…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, the species remains extremely endangered with a very small population. At present, the only studies of this species have used seedlings to evaluate the effects of water and light stress (Zhang et al., 2019), leaf nutrients (Gao, Song, & Liu, 2019), and population structure and dynamics (Wu et al., 2018; Xu & Liu, 2019). These studies do not provide enough information to support the rescue and protection of A .…”

Section: Introductionmentioning

confidence: 99%

Survival strategy of the endangered tree Acer catalpifolium Rehd., based on ¹³C fractionation

Song

Liu

2020

Ecology and Evolution

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We conducted a field investigation and evaluation of 13C natural abundance to determine the growth habit and propagation strategy of Acer catalpifolium Rehd., a tree species native to China that is highly endangered. The results showed that A. catalpifolium is a K‐selected strategist and pioneer species. Its narrow ecological range limits its geographical distribution, and poor fecundity limits its population size. The analysis of 13C natural abundance showed that A. catalpifolium does not use organic matter for reproduction when its stand volume is less than 1.08 × 106 cm3 or it is less than 18.6 m tall, but it does use this strategy when it has a sufficient 1.08 × 106 cm3 stand volume or more or is taller than 18.6 m. If environmental conditions are not conducive (e.g., severe human disturbance, cliff edges, or fierce interspecific competition) to the continued growth of the tree, A. catalpifolium may allocate organic matter for reproduction. Human disturbance seems to promote the population expansion of A. catalpifolium. We provide our suggestions for the promotion and protection of A. catalpifolium as a species.

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Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

et al. 2022

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Morphological and physiological response of Acer catalpifolium Rehd. Seedlings to water and light stresses

Cited by 14 publications

References 30 publications

HETEROFOR 1.0: a spatially explicit model for exploring the response of structurally complex forests to uncertain future conditions – Part 2: Phenology and water cycle

HETEROFOR 1.0: a spatially explicit model for exploring the response of structurally complex forests to uncertain future conditions – Part 2: Phenology and water cycle

Survival strategy of the endangered tree Acer catalpifolium Rehd., based on ¹³C fractionation

Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

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Morphological and physiological response of Acer catalpifolium Rehd. Seedlings to water and light stresses

Cited by 14 publications

References 30 publications

HETEROFOR 1.0: a spatially explicit model for exploring the response of structurally complex forests to uncertain future conditions – Part 2: Phenology and water cycle

HETEROFOR 1.0: a spatially explicit model for exploring the response of structurally complex forests to uncertain future conditions – Part 2: Phenology and water cycle

Survival strategy of the endangered tree Acer catalpifolium Rehd., based on 13C fractionation

Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

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Product

Resources

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Survival strategy of the endangered tree Acer catalpifolium Rehd., based on ¹³C fractionation