Elevated CO2 alters nitrogen cycle in global croplands DOI Creative Commons
Jinglan Cui, Xiuming Zhang, Stefan Reis

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Jan. 26, 2023

Abstract Croplands support global food security and human nutrition, representing the largest nitrogen flows globally. Elevated atmospheric carbon dioxide (CO2) level is a key driver of climate change with multiple impacts on security, environmental health. However, our understanding how cropland cycle will respond to elevated CO2, so far not well developed. We demonstrate that CO2 alone would induce synergistic intensification cycles, promote use efficiency by 19% (14-26%) biological fixation 55% (28-85%) in croplands. This lead increased crop harvest (+12 Tg), substantially lower fertilizer input requirements (-34 Tg) an overall decline reactive loss (-46 annually under future scenarios 2050. The impact altered amount 672 billion US dollars benefit terms avoiding damages ecosystem Regionally, alteration materialize China, India, North America, Europe. To improve policy design for sustainable development, it be paramount integrate effect rising into state-of-the-art Earth System Models.

Language: Английский

Evidence and attribution of the enhanced land carbon sink DOI Open Access
Sophie Ruehr, Trevor F. Keenan, C. A. Williams

et al.

Nature Reviews Earth & Environment, Journal Year: 2023, Volume and Issue: 4(8), P. 518 - 534

Published: July 25, 2023

Language: Английский

Citations

120
Elevated CO2 levels promote both carbon and nitrogen cycling in global forests DOI
Jinglan Cui, Miao Zheng, Zihao Bian

et al.

Nature Climate Change, Journal Year: 2024, Volume and Issue: 14(5), P. 511 - 517

Published: April 2, 2024

Language: Английский

Citations

29
Nitrogen cycles in global croplands altered by elevated CO2 DOI
Jinglan Cui, Xiuming Zhang, Stefan Reis

et al.

Nature Sustainability, Journal Year: 2023, Volume and Issue: 6(10), P. 1166 - 1176

Published: June 22, 2023

Language: Английский

Citations

30
Hotter drought and trade‐off between fast and slow growth strategies as major drivers of tree‐ring growth variability of global conifers DOI
Xuemei Wang, Xiangping Wang

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(5), P. 1123 - 1139

Published: March 18, 2024

Abstract Temporal growth variability is an important indicator of ecosystem function under climate change. However, we still lack a unified understanding how conditions, change (trends and variability), nitrogen (N) deposition, functional traits stand factors together affect radial variability. Using global conifer tree‐ring records (123 species from 1780 sites) during 1970–2010 to calculate variability, assessed abiotic directly indirectly via with boosted regression tree structural equation models, examined the differences among continents (North America, Asia Europe). We found: (a) was mainly affected by warm‐induced drought increased at lower latitudes. Climate warming in winter could decrease but this effect far not enough offset threat hotter drought; (b) there existed trade‐off between fast‐ slow‐growing (drought tolerance) strategies for species, traits. Contrary common conjecture, higher tolerance revealed due their occupation more xeric sites, may also because investment leads less remaining growth; (c) older trees conservative strategy, while large scales, taller showed occupying productive sites; (d) moderate N deposition reduce leading conifers adopt fast‐growing strategy (e.g. Asia), long‐term excessive led North America Synthesis . Our results suggest that coniferous forests water‐limited regions should be vulnerable drought, ‘fast–slow’ key regulating effects various on stability. Moreover, future will severely threaten growth, especially old

Language: Английский

Citations

10
Statistical power and the detection of global change responses: The case of leaf production in old‐growth forests DOI
S. Joseph Wright‬,

Osvaldo Calderón

Ecology, Journal Year: 2025, Volume and Issue: 106(1)

Published: Jan. 1, 2025

Abstract Forests sequester a substantial portion of anthropogenic carbon emissions. Many open questions concern how. We address two these questions. Has leaf and fine litter production changed? And what is the contribution old‐growth forests? with long‐term records (≥10 years) total, reproductive, especially foliar from 32 forests. expect increases in forest productivity associated rising atmospheric dioxide concentrations and, cold climates, temperatures. evaluate statistical power our analysis using simulations known temporal trends parameterized sample sizes (in number levels interannual variation observed for each record. Statistical inadequate to detect biologically plausible lasting less than 20 years. Modest characterizes production, more variable phenomena will require even longer global change responses sufficient power. Just four forests have years, provide no evidence increases. Three are central Panama, also wood both components aboveground unchanged over 21–38 The possibility that recent limited deserves attention.

Language: Английский

Citations

2
Modern pollen distribution in moss samples along an elevational gradient in southeast Tibet DOI Creative Commons
Qingfeng Ma, Liping Zhu, Ruimin Yang

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110867 - 110867

Published: Aug. 24, 2023

Modern pollen distribution and its relationship to vegetation climate in the lower Yarlung Zangbo River are investigated provide a reference for paleoenvironmental reconstructions improve understanding of dispersal patterns mountainous regions. Twenty-eight modern samples collected moss polsters from 800 5400 m a.s.l. used palynological analysis. Our results indicate that assemblages indicator species can reflect vertical belts. Abies, Picea Pinus upper forests shrub meadow elements (Ericaceae, Cyperaceae Polygonum) show strong abilities be transported upward, whereas (e.g. Macaranga, Alnus Rutaceae) spore Athyrium, Cyatheaceae, Dicranopteris, Pteris) taxa evergreen weak upward. An unusual finding is Tsuga coniferous forest tends downslope, probably due intense spring rainfall associated surface runoff study area. Due potential impact on geographic range shifts plants, may an additional factor considered studies change southeastern Tibetan Plateau, such as projection Abies or treeline under warming. Furthermore, redundancy analysis shows precipitation wind speed main factors influencing

Language: Английский

Citations

11
Dynamic structural evolution of lignin macromolecules and hemicelluloses during Chinese pine growth DOI
Qian Sun, Han-Min Wang, Cheng‐Ye Ma

et al.

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 235, P. 123688 - 123688

Published: Feb. 16, 2023

Language: Английский

Citations

10
The impact of Polylepis tarapacana on soil microbial communities in the Andean Dry Puna of Chile DOI
Ignacio Gutiérrez-Cortés, Stephen D. Simpson, Marlene Manzano

et al.

Journal of Arid Environments, Journal Year: 2025, Volume and Issue: 227, P. 105332 - 105332

Published: Feb. 1, 2025

Language: Английский

Citations

0
The Response of a Northeastern Temperate Forest to Future Scenarios of Climate Change and Energy Policies Through the 21st Century DOI
Linghui Meng,

Afshin Pourmokhtarian,

Pamela H. Templer

et al.

Environmental Modelling & Software, Journal Year: 2025, Volume and Issue: unknown, P. 106473 - 106473

Published: April 1, 2025

Language: Английский

Citations

0
Host tree impact on Lymantria species under CO2 and temperature changes DOI Creative Commons
Barbora Dvořáková, Jaroslav Holuša, David Musiolek

et al.

Frontiers in Forests and Global Change, Journal Year: 2025, Volume and Issue: 8

Published: May 20, 2025

Introduction Climate change has led to rising atmospheric CO 2 levels and temperatures, projected double concentrations increase temperatures by 2–5°C the end of 21 st century. These environmental changes influence plant primary secondary metabolism, potentially altering plant-insect interactions. Herbivore performance depends on nutritional quality host plants, which may decline with elevated due an increased carbon-to-nitrogen (C:N) ratio. To explore these effects, spongy moth larvae ( Lymantria dispar ) was assessed oak Quercus robur spruce Picea abies seedlings grown under varying climatic conditions. This approach compares a preferred non-preferred one in case L. , providing insight into how selection be influenced future climate scenarios. In addition, nun monacha ), conifer-feeding species, also studied experimental facilitate comparison specialist herbivore. Methods Three-year-old were reared for 1 year four scenarios combining two (ambient: 410 ppm elevated: 820 ppm) temperature regimes (20:15°C 25:20°C). Seedlings then processed leaf powder diets laboratory bioassays larvae. Secondary metabolites analyzed assess climate-induced tree composition their effects herbivores. Results Elevated C:N ratio both showing higher than oak. Higher nitrogen content, particularly seedlings. performed better despite metabolite concentrations, while exhibited minimal variation across treatments. Conclusion The combined impacted quality; however, there nearly no differences Despite trees, able thrive effectively, demonstrating resilience changes.

Language: Английский

Citations

0