Individual and interactive responses of woody plants' biomass and leaf traits to drought and shade

Zhao-guo, Wang; Wang, Chuankuan

doi:10.1111/geb.13615

Cited by 11 publications

(9 citation statements)

References 75 publications

(109 reference statements)

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“…If standard errors (SE) were provided, the SD was computed using the following equation: SD = SE

\sqrt{n}

. The SDs that were difficult to collect from the figure were calculated as the mean value divided by the average ratio between the mean value and SD from the available data (Wang & Wang, 2023). The initial soil properties before incubation were recorded directly from the collected studies.…”

Section: Methodsmentioning

confidence: 99%

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Carbon emissions and priming effects derived from crop residues and their responses to nitrogen inputs

Qin,

Chen,

Scriber

et al. 2024

Global Change Biology

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Crop residue‐derived carbon (C) emissions and priming effects (PE) in cropland soils can influence the global C cycle. However, their corresponding generality, driving factors, and responses to nitrogen (N) inputs are poorly understood. As a result, the total C emissions and net C balance also remain mysterious. To address the above knowledge gaps, a meta‐analysis of 1123 observations, taken from 51 studies world‐wide, has been completed. The results showed that within 360 days, emission ratios of crop residues C (ER) ranged from 0.22% to 61.80%, and crop residues generally induced positive PE (+71.76%). Comparatively, the contribution of crop residue‐derived C emissions (52.82%) to total C emissions was generally higher than that of PE (12.08%), emphasizing the importance of reducing ER. The ER and PE differed among crop types, and both were low in the case of rice, which was attributed to its saturated water conditions. The ER and PE also varied with soil properties, as PE decreased with increasing C addition ratio in soils where soil organic carbon (SOC) was less than 10‰; in contrast, the opposite phenomenon was observed in soils with SOC exceeding 10‰. Moreover, N inputs increased ER and PE by 8.31% and 3.78%, respectively, which was predominantly attributed to (NH4)2SO4. The increased PE was verified to be dominated by microbial stoichiometric decomposition. In summary, after incorporating crop residues, the total C emissions and relative net C balance in the cropland soils ranged from 0.03 to 23.47 mg C g−1 soil and 0.21 to 0.97 mg C g−1 residue‐C g−1 soil, respectively, suggesting a significant impact on C cycle. These results clarify the value of incorporating crop residues into croplands to regulate global SOC dynamics and help to establish while managing site‐specific crop return systems that facilitate C sequestration.

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“…If standard errors (SE) were provided, the SD was computed using the following equation: SD = SE

\sqrt{n}

Section: Methodsmentioning

confidence: 99%

“…were calculated as the mean value divided by the average ratio between the mean value and SD from the available data (Wang & Wang, 2023). The initial soil properties before incubation were recorded directly from the collected studies.…”

Section: Data Collectionmentioning

confidence: 99%

Carbon emissions and priming effects derived from crop residues and their responses to nitrogen inputs

Qin,

Chen,

Scriber

et al. 2024

Global Change Biology

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“…If no SE or SD was reported, an average ratio between the mean value and SD was calculated for a specific trait from the available data; the SD was then calculated as the mean value divided by this average ratio (Wang & Wang, 2023).…”

Section: Data Collection and Extractionmentioning

confidence: 99%

Interactive effects of elevated temperature and drought on plant carbon metabolism: A meta‐analysis

Zhao-guo

Wang

2023

Global Change Biology

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Elevated temperature (Te) and drought often co‐occur and interactively affect plant carbon (C) metabolism and thus the ecosystem C cycling; however, the magnitude of their interaction is unclear, making the projection of global change impacts challenging. Here, we compiled 107 journal articles in which temperature and water availability were jointly manipulated, and we performed a meta‐analysis of interactive effects of Te and drought on leaf photosynthesis (Agrowth) and respiration (Rgrowth) at growth temperature, nonstructural carbohydrates and biomass of plants, and their dependencies on experimental and biological moderators (e.g., treatment intensity, plant functional type). Our results showed that, overall, there was no significant interaction of Te and drought on Agrowth. Te accelerated Rgrowth under well‐watered conditions rather than under drought conditions. The Te × drought interaction on leaf soluble sugar and starch concentrations were neutral and negative, respectively. The effect of Te and drought on plant biomass displayed a negative interaction, with Te deteriorating the drought impacts. Drought induced an increase in root to shoot ratio at ambient temperature but not at Te. The magnitudes of Te and drought negatively modulated the Te × drought interactions on Agrowth. Root biomass of woody plants was more vulnerable to drought than that of herbaceous plants at ambient temperature, but this difference diminished at Te. Perennial herbs exhibited a stronger amplifying effect of Te on plant biomass in response to drought than did annual herbs. Te exacerbated the responses of Agrowth and stomatal conductance to drought for evergreen broadleaf trees rather than for deciduous broadleaf and evergreen coniferous trees. A negative Te × drought interaction on plant biomass was observed on species‐level rather than on community‐level. Collectively, our findings provide a mechanistic understanding of the interactive effects of Te and drought on plant C metabolism, which would improve the prediction of climate change impacts.

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“…In summary, despite consistent evidence for trade‐offs among tolerance to multiple stressors (Laanisto & Niinemets, 2015; Niinemets & Valladares, 2006; Puglielli, Hutchings, et al. 2021), the functional basis of such trade‐offs in woody plants is not yet clarified (Grubb, 2016; Valladares et al., 2016; Valladares & Niinemets, 2008; Wang & Wang, 2023).…”

Section: Introductionmentioning

confidence: 99%

Trait dimensions of abiotic stress tolerance in woody plants of the Northern Hemisphere

Pavanetto,

Carmona,

Laanisto

et al. 2023

Global Ecol Biogeogr

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AimTrade‐offs among tolerances to different abiotic stressors limit polytolerance in woody plants. However, the general trait syndromes that underlie large‐scale tolerance patterns of woody plants remain controversial. Here, we tested if the leading trait dimensions that define the global spectrum of plant form and function capture the underlying trait trade‐offs limiting woody plant polytolerance.LocationNorthern Hemisphere.Time PeriodPresent.Major Taxa StudiedWoody plants.MethodsWe used a dataset of 779 species to link the trait dimensions defining the global spectrum of plant form and function with two dimensions summarizing tolerance syndromes to drought, shade, cold and waterlogging. Stress tolerance dimensions were a trade‐off between drought and cold/waterlogging tolerance strategies, and a shade tolerance spectrum. Relationships among trait and stress tolerance dimensions were evaluated using general additive models separately for deciduous and evergreen angiosperms, and evergreen gymnosperms.ResultsDrought‐tolerant angiosperms showed greater specific stem density (SSD) and seed mass (SM), and lower specific leaf area (SLA) and leaf nitrogen content per mass (LN), compared to the cold/waterlogging‐tolerant species. Shade‐tolerant angiosperms displayed greater SSD and SM and lower SLA and LN compared to intolerant angiosperms. Highly contrasting trait adaptations also distinguished drought‐ (greater SSD, SM and lower SLA, LN) from shade‐tolerant evergreen gymnosperms.Main ConclusionsThe ‘SSD–SM’ and the ‘SLA–LN’ dimensions mainly distinguish cold or drought‐tolerant woody angiosperms and shade‐ or drought‐tolerant gymnosperms. Our results also support a conservative trait strategy for shade‐tolerant compared to shade‐intolerant species, with some differences between plant functional types probably due to contrasting leaf lifespans. Overall, our findings identify some leading functional constraints on polytolerance in woody plants and provide a framework to integrate additional trait dimensions to fully elucidate such constraints.

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Individual and interactive responses of woody plants' biomass and leaf traits to drought and shade

Abstract: Aim: While drought and shade are critical factors that determine seedling survival and growth, whether the responses of woody seedlings to drought are facilitated, aggravated or unaffected by shade remains uncertain.

Cited by 11 publications

References 75 publications

Carbon emissions and priming effects derived from crop residues and their responses to nitrogen inputs

Carbon emissions and priming effects derived from crop residues and their responses to nitrogen inputs

Interactive effects of elevated temperature and drought on plant carbon metabolism: A meta‐analysis

Trait dimensions of abiotic stress tolerance in woody plants of the Northern Hemisphere

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