Carbon isotope compositions (δ<sup>13</sup>C) of leaf, wood and holocellulose differ among genotypes of poplar and between previous land uses in a short‐rotation biomass plantation

Verlinden, Melanie S.; Fichot, Régis; Broeckx, L.S.; Vanholme, Bartel; Boerjan, Wout; Ceulemans, R.

doi:10.1111/pce.12383

Cited by 20 publications

(17 citation statements)

References 80 publications

(177 reference statements)

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“…Skado had lower F s than the other genotypes, while it was the highest yielding genotype of those considered in our study (Broeckx et al ., ). This was consistent with previous measurements of leaf gas exchange and intrinsic leaf water use efficiency (Broeckx et al ., ) and of carbon isotope discrimination (Verlinden et al ., ) performed during the same period in 2011. Therefore, at our site, Skado had the highest water use efficiency as compared to Oudenberg and Grimminge.…”

Section: Discussionmentioning

confidence: 99%

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Water use of a multigenotype poplar short‐rotation coppice from tree to stand scale

et al. 2016

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Short‐rotation coppice (SRC) has great potential for supplying biomass‐based heat and energy, but little is known about SRC's ecological footprint, particularly its impact on the water cycle. To this end, we quantified the water use of a commercial scale poplar (Populus) SRC plantation in East Flanders (Belgium) at tree and stand level, focusing primarily on the transpiration component. First, we used the AquaCrop model and eddy covariance flux data to analyse the different components of the stand‐level water balance for one entire growing season. Transpiration represented 59% of evapotranspiration (ET) at stand scale over the whole year. Measured ET and modelled ET were lower as compared to the ET of reference grassland, suggesting that the SRC only used a limited amount of water. Secondly, we compared leaf area scaled and sapwood area scaled sap flow (F s) measurements on individual plants vs. stand scale eddy covariance flux data during a 39‐day intensive field campaign in late summer 2011. Daily stem diameter variation (∆D) was monitored simultaneously with F s to understand water use strategies for three poplar genotypes. Canopy transpiration based on sapwood area or leaf area scaling was 43.5 and 50.3 mm, respectively, and accounted for 74%, respectively, 86%, of total ecosystem ET measured during the intensive field campaign. Besides differences in growth, the significant intergenotypic differences in daily ∆D (due to stem shrinkage and swelling) suggested different water use strategies among the three genotypes which were confirmed by the sap flow measurements. Future studies on the prediction of SRC water use, or efforts to enhance the biomass yield of SRC genotypes, should consider intergenotypic differences in transpiration water losses at tree level as well as the SRC water balance at stand level.

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Section: Discussionmentioning

confidence: 99%

“…The site was neither fertilized, nor irrigated. More information on the site, on the management and on soil characteristics is provided by Broeckx et al (2012) and Verlinden et al (2015).…”

Section: Study Site and Plant Materialsmentioning

confidence: 99%

Water use of a multigenotype poplar short‐rotation coppice from tree to stand scale

et al. 2016

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“…However, they may not be the best candidates for similar studies. The leaf carbon isotope ratio (δ 13 C) of C 3 plants is inversely related to the drawdown of CO 2 during photosynthesis 43 , and leaf δ 13 C shows a close relationship with water use efficiency (WUE) 44 . The ratio between the leaf-internal (C i ) and ambient (C a ) molar fractions of CO 2 (C i /C a ) regulates the balance between carbon gain and water loss, which is lower in dry or cold conditions than in wet or hot conditions 26 .…”

Section: Discussionmentioning

confidence: 99%

A novel approach for modelling vegetation distributions and analysing vegetation sensitivity through trait-climate relationships in China

Yang

Zhu

Peng

et al. 2016

Sci Rep

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Increasing evidence indicates that current dynamic global vegetation models (DGVMs) have suffered from insufficient realism and are difficult to improve, particularly because they are built on plant functional type (PFT) schemes. Therefore, new approaches, such as plant trait-based methods, are urgently needed to replace PFT schemes when predicting the distribution of vegetation and investigating vegetation sensitivity. As an important direction towards constructing next-generation DGVMs based on plant functional traits, we propose a novel approach for modelling vegetation distributions and analysing vegetation sensitivity through trait-climate relationships in China. The results demonstrated that a Gaussian mixture model (GMM) trained with a LMA-Nmass-LAI data combination yielded an accuracy of 72.82% in simulating vegetation distribution, providing more detailed parameter information regarding community structures and ecosystem functions. The new approach also performed well in analyses of vegetation sensitivity to different climatic scenarios. Although the trait-climate relationship is not the only candidate useful for predicting vegetation distributions and analysing climatic sensitivity, it sheds new light on the development of next-generation trait-based DGVMs.

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“…These positive correlations between biomass production and ∆ suggested that high productivity and low WUE characterized ‘DN34′ and ‘NM6′, which were likely driven by variations in stomatal conductance, resulting in high BIOMASS MAI at the expense of water use [ 56 ]. Therefore, despite being beyond the scope of the current study, ∆-assisted, multi-trait selection of productive clones should be carefully considered in future efforts, focusing on both growth and high WUE [ 51 , 57 ]. Such efforts are important, as they take into account linkages between WUE and phytoremediation that are associated with potential stress impacts from landfill soil properties and contamination sources [ 10 , 31 , 32 , 33 , 34 , 35 ].…”

Section: Discussionmentioning

confidence: 99%

Ecosystem Services, Physiology, and Biofuels Recalcitrance of Poplars Grown for Landfill Phytoremediation

Zalesny

Zhu

Headlee

et al. 2020

Plants

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Long-term poplar phytoremediation data are lacking, especially for ecosystem services throughout rotations. We tested for rotation-age differences in biomass productivity and carbon storage of clones Populus deltoides Bartr. ex Marsh × P. nigra L. ‘DN34′ and P. nigra × P. maximowiczii A. Henry ‘NM6′ grown for landfill phytoremediation in Rhinelander, WI, USA (45.6° N, 89.4° W). We evaluated tree height and diameter, carbon isotope discrimination (Δ), and phytoaccumulation and phytoextraction of carbon, nitrogen, and inorganic pollutants in leaves, boles, and branches. We measured specific gravity and fiber composition, and determined biofuels recalcitrance of the Rhinelander landfill trees versus these genotypes that were grown for biomass production on an agricultural site in Escanaba, MI, USA (45.8° N, 87.2° W). ‘NM6′ exhibited 3.4 times greater biomass productivity and carbon storage than ‘DN34′, yet both of the clones had similar Δ, which differed for tree age rather than genotype. Phytoaccumulation and phytoextraction were clone- and tissue-specific. ‘DN34′ generally had higher pollutant concentrations. Across contaminants, stand-level mean annual uptake was 28 to 657% greater for ‘NM6′, which indicated its phytoremediation superiority. Site-related factors (not genotypic effects) governed bioconversion potential. Rhinelander phytoremediation trees exhibited 15% greater lignin than Escanaba biomass trees, contributing to 46% lower glucose yield for Rhinelander trees.

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Carbon isotope compositions (δ¹³C) of leaf, wood and holocellulose differ among genotypes of poplar and between previous land uses in a short‐rotation biomass plantation

Cited by 20 publications

References 80 publications

Water use of a multigenotype poplar short‐rotation coppice from tree to stand scale

Water use of a multigenotype poplar short‐rotation coppice from tree to stand scale

A novel approach for modelling vegetation distributions and analysing vegetation sensitivity through trait-climate relationships in China

Ecosystem Services, Physiology, and Biofuels Recalcitrance of Poplars Grown for Landfill Phytoremediation

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Carbon isotope compositions (δ13C) of leaf, wood and holocellulose differ among genotypes of poplar and between previous land uses in a short‐rotation biomass plantation

Cited by 20 publications

References 80 publications

Water use of a multigenotype poplar short‐rotation coppice from tree to stand scale

Water use of a multigenotype poplar short‐rotation coppice from tree to stand scale

A novel approach for modelling vegetation distributions and analysing vegetation sensitivity through trait-climate relationships in China

Ecosystem Services, Physiology, and Biofuels Recalcitrance of Poplars Grown for Landfill Phytoremediation

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Carbon isotope compositions (δ¹³C) of leaf, wood and holocellulose differ among genotypes of poplar and between previous land uses in a short‐rotation biomass plantation