Acquisition, Use, and Loss of Nutrients

Berendse, F.; Kroon, de H.; Braakhekke, W.G.

doi:10.1201/9781420007626-8

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…Thus, photosynthetic capacity (A max , the photosynthetic rate per unit leaf mass) correlates linearly with LNC (Field & Mooney, 1986). Nutrient rich environments favour the allocation of an important fraction of leaf N to the photosynthetic machinery, instead of to defensive compounds or supporting tissue, which is more typical in poor environments (Berendsen et al., 2007). LCC is the structural basis and constitutes a rather stable 50% of plant dry mass, and its usefulness lies in its relationship with other nutrients (leaf stoichiometry) that can be indicative of life history strategies, such as responses to stress (Zhang et al., 2017).…”

Section: Methodsmentioning

confidence: 99%

The GenTree Leaf Collection: Inter‐ and intraspecific leaf variation in seven forest tree species in Europe

Benavides

Carvalho

Bastías

et al. 2021

Global Ecol. Biogeogr.

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Motivation Trait variation within species can reveal plastic and/or genetic responses to environmental gradients, and may indicate where local adaptation has occurred. Here, we present a dataset of rangewide variation in leaf traits from seven of the most ecologically and economically important tree species in Europe. Sample collection and trait assessment are embedded in the GenTree project (EU‐Horizon 2020), which aims at characterizing the genetic and phenotypic variability of forest tree species to optimize the management and sustainable use of forest genetic resources. Our dataset captures substantial intra‐ and interspecific leaf phenotypic variability, and provides valuable information for studying the relationship between ecosystem functioning and trait variability of individuals, and the response and resilience of species to environmental changes. Main types of variable contained We chose morphological and chemical characters linked to trade‐offs between acquisition and conservation of resources and water use, namely specific leaf area, leaf size, carbon and nitrogen content and their ratio, and the isotopic signature of stable isotope 13C and 15N in leaves. Spatial location and grain We surveyed between 18 and 22 populations per species, 141 in total, across Europe. Time period Leaf sampling took place between 2016 and 2017. Major taxa and level of measurement We sampled at least 25 individuals in each population, 3,569 trees in total, and measured traits in 35,755 leaves from seven European tree species, i.e. the conifers Picea abies, Pinus pinaster and Pinus sylvestris, and the broadleaves Betula pendula, Fagus sylvatica, Populus nigra and Quercus petraea. Software format The data files are in ASCII text, tab delimited, not compressed.

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Section: Methodsmentioning

confidence: 99%

The GenTree Leaf Collection: Inter‐ and intraspecific leaf variation in seven forest tree species in Europe

Benavides

Carvalho

Bastías

et al. 2021

Global Ecol. Biogeogr.

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“…When comparing with pruned trees, it was found that fertilization stimulated growth in the non-pruned ones, because they conserved the nutrients and compounds related to the branches and foliage that are eliminated when pruning. Under natural conditions, foliage loss due to herbivory or another disturbing factor means important nutrient loss, which cannot be reabsorbed and retranslocated to other tissues for plant growth (Berendse et al, 2007;Turner, 2004). In Cedrela odorata L., foliage loss caused by the meliaceae borer (Hypsipyla grandella Zeller) generates a nutritional imbalance in the plants which affects their growth, an effect that is partially counteracted by fertilization (Calixto et al, 2015).…”

Section: La Soledad Canatlán Durango Statementioning

confidence: 99%

Pruning and fertilization in young Pinus greggii plantations established at Durango, Mexico

Serna

Villalobos

Saucedo

et al. 2022

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Objective: To evaluate the effects of pruning and fertilization on the growth of Pinus greggii plantationsestablished at Durango state, Mexico.Design/methodology/approach: In a plantation (Durango), pruning was applied in three intensities (0, 50,and 75%) in a randomized complete block design. Four years later, the basal diameter (Db), normal diameter(ND), total plant height (PH), and stem height (SH) were evaluated. In another plantation (La Soledad), twopruning levels (0 and 50%) and foliar fertilization (with and without application) were applied in a completelyrandomized factorial design. Seven months later, Db, PH, and crown diameter (CD) were assessed. Theanalysis of their variance and means comparison test (Tukey, 0.05) were performed.Results: In Durango, pruning diminished the Db and PH, but increased the SH (p0.01). In La Soledad,pruning also affected growth. The Db, PH, and CD were lower (p0.01) when trees were pruned. Fertilizationaffected the PH (p0.05) and CD (p0.01) as well. The PH and the CD for both pruned and unpruned treesincreased with fertilization.Limitations/implications: Pruning at 50 and 75% intensities are not suitable for P. greggii because it reducestheir growth.Findings/conclusions: Fertilization favors the growth of P. greggii planted on low fertility soils for both prunedand unpruned trees, but the pruning and fertilization interaction should be examined in detail for a longerperiod

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Early Differentiation of the Phenotypic Space and Performance of Juniperus thurifera Across Woodland-Expanding Areas

2022

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Forest expansion after rural abandonment is changing landscapes, bringing new challenges and opportunities. Juvenile performance has an effect in the establishment of new forests and the subsequent acclimation of adult trees. However, most studies have focused on the performance of adult trees. Here, we analysed differences in the phenotypic trait space of juveniles across gradients of Juniperus thurifera woodland expansion and explored which traits shape juveniles’ performance, seeking specific drivers of such differentiation and the role of the ontogeny. Thus, we surveyed functional leaf and plant-size traits in 180 juveniles growing in 18 plots at three different tree density stages (mature woodland, recently established area and a transition zone between both) and recorded local environmental conditions around each individual. We also estimated their radial growth and resilience to drought (in terms of resistance, recovery and resilience) as performance indicators. We found no relevant effects of the study environmental variables, but we did find a shift in the phenotypic space among juveniles across the gradient, with taller crowns and higher amount of leaf N and δ13C at the expanding edge. This trait differentiation across the gradient implied higher performance of young trees growing in old agricultural fields, both in growth rate and drought resilience terms. Our results showed a relevant land-use legacy on early trait differentiation that shapes more efficient phenotypes in the expanding edge compared to those in mature woodlands, suggesting that the future of these new forests is not compromised under current conditions.

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Acquisition, Use, and Loss of Nutrients

Cited by 8 publications

References 1 publication

The GenTree Leaf Collection: Inter‐ and intraspecific leaf variation in seven forest tree species in Europe

The GenTree Leaf Collection: Inter‐ and intraspecific leaf variation in seven forest tree species in Europe

Pruning and fertilization in young Pinus greggii plantations established at Durango, Mexico

Early Differentiation of the Phenotypic Space and Performance of Juniperus thurifera Across Woodland-Expanding Areas

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