Unforeseen plant phenotypic diversity in a dry and grazed world

Nature, Год журнала: 2024, Номер 632(8026), С. 808 - 814

Опубликована: Авг. 7, 2024

Язык: Английский

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Legume abundance along successional and rainfall gradients in Neotropical forests

Nature Ecology & Evolution, Год журнала: 2018, Номер 2(7), С. 1104 - 1111

Опубликована: Май 25, 2018

Язык: Английский

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Future global productivity will be affected by plant trait response to climate

Scientific Reports, Год журнала: 2018, Номер 8(1)

Опубликована: Фев. 6, 2018

Abstract Plant traits are both responsive to local climate and strong predictors of primary productivity. We hypothesized that future change might promote a shift in global plant resulting changes Gross Primary Productivity (GPP). characterized the relationship between key traits, namely Specific Leaf Area (SLA), height, seed mass, found by 2070, tropical arid ecosystems will be more suitable for plants with relatively lower canopy SLA while far northern latitudes favor woody taller than at present. Using network tower eddy covariance CO2 flux measurements extrapolated trait maps, we estimated distribution annual GPP under current projected community distribution. predict biomes (≥45 °N) increase 31% (+8.1 ± 0.5 Pg C), but this offset 17.9% decline tropics (−11.8 0.84 C). These findings suggest regional affect distributions, which may turn productivity patterns.

Язык: Английский

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Leaf Fresh Weight Versus Dry Weight: Which is Better for Describing the Scaling Relationship between Leaf Biomass and Leaf Area for Broad-Leaved Plants?

Forests, Год журнала: 2019, Номер 10(3), С. 256 - 256

Опубликована: Март 13, 2019

Leaf dry mass per unit area (LMA) is considered to represent the photosynthetic capacity, which actually implies a hypothesis that foliar water (leaf fresh weight minus leaf weight) proportional during growth. However, relevant studies demonstrated disproportionately increases with increasing weight. Although scaling relationships of vs. for many plants were investigated, few compared relationship based on In this study, we used data three families (Lauraceae, Oleaceae, and Poaceae, subfamily Bambusoideae) five broad-leaved species each family examine whether using different measures biomass (i.e., can result in fitted results between area. Reduced major axis regression was fit log-transformed area, bootstrap percentile method test significance difference estimate exponent We found there across (Phoebe sheareri (Hemsl.) Gamble, Forsythia viridissima Lindl., Osmanthus fragrans Lour., Chimonobambusa sichuanensis (T.P. Yi) T.H. Wen, Hibanobambusa tranquillans f. shiroshima H. Okamura) whose estimates not significantly different, whereas, remaining ten species, both different. For same shape narrow low ratio width length) two exponents are prone having significant difference. There also an allometric weight, means increased addition, goodness better than suggests might be more able reflect physiological functions leaves associated photosynthesis respiration mass. The above conclusions 15 although believe those may potentially extended other broad flat leaves.

Язык: Английский

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Leaf economics and plant hydraulics drive leaf : wood area ratios

New Phytologist, Год журнала: 2019, Номер 224(4), С. 1544 - 1556

Опубликована: Июнь 19, 2019

Biomass and area ratios between leaves, stems roots regulate many physiological ecological processes. The Huber value Hv (sapwood area/leaf ratio) is central to plant water balance drought responses. However, its coordination with key functional traits poorly understood, prevents developing trait-based prediction models. Based on theoretical arguments, we hypothesise that global patterns in of terminal woody branches can be predicted from variables related trait spectra, hydraulics size leaf economics. Using a compilation 1135 species-averaged , show varies over three orders magnitude. Higher are seen short small-leaved low-specific (SLA) shrubs low Ks arid relative tall large-leaved high-SLA trees high moist environments. All depend climate but climatic correlations stronger for explanatory than . Negative isometry found suggesting compensation maintain hydraulic supply leaves across species. This work identifies the major drivers branch sapwood/leaf ratios. Our approach based widely available facilitates development accurate models above-ground biomass allocation helps predict vegetation responses drought.

Язык: Английский

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