Spatial Distribution Pattern of Aromia bungii Within China and Its Potential Distribution Under Climate Change and Human Activity

Ecology and Evolution, Год журнала: 2024, Номер 14(11)

Опубликована: Ноя. 1, 2024

ABSTRACT Aromia bungii is a pest that interferes with the health of forests and hinders development fruit tree industry, its spread influenced by changes in abiotic factors human activities. Therefore, exploring their spatial distribution patterns potential areas under such conditions crucial for maintaining forest ecosystem security. This study analyzed differentiation characteristics geographic pattern A. China using Moran's I Getis‐Ord General G index. Hot spot were identified Gi*. An optimized MaxEnt model was used to predict within four shared economic pathways combining multivariate environmental data: (1) prediction natural variables predicted current climate models; (2) + activities (3) future models (2050s 2070s). Meanwhile, MigClim simulate unoccupied suitable area presence obstacles change. The results showed activities, minimum temperature coldest month, precipitation wettest month had positive effects on . However, period, drastically reduced survival , mainly concentrated eastern central regions China. Under influence change future, habitat will gradually increase. Additionally, indicates has been continuous increasing trend. provides reference prevention control maintenance security, important theoretical guidance researchers, policymakers, governments.

Язык: Английский

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Driving mechanisms of soil bacterial α and β diversity under long-term nitrogen addition: Subtractive heterogenization based on the environment selection

Geoderma, Год журнала: 2024, Номер 445, С. 116886 - 116886

Опубликована: Апрель 15, 2024

Soil bacterial α and β diversity patterns under nitrogen (N) addition have been intensively examined, but γ remain largely unknown, especially, the mechanisms that concurrently control changes in α, elusive. Therefore, we formulated a conceptual framework simultaneously considers candidate drivers including ubiquitous species, rare community assembly processes to elucidate driving of N addition. The was tested by compiling sequence data seven studies published from January 1997 May 2022 following same analysis as our own two long-term multilevel experiments. We demonstrate subtractive heterogenization based on environment selection predicts That is, led decline species (subtractive processes) through low soil pH, promoted strength heterogeneous (heterogeneous via enhancing environmental heterogeneity, subsequently causing lower higher diversity. These results mean may lead significant loss around world. Together, these findings offer way predict responses ongoing atmospheric deposition.

Язык: Английский

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Canopy and understory nitrogen additions differently affect soil microbial residual carbon in a temperate forest

Global Change Biology, Год журнала: 2024, Номер 30(7)

Опубликована: Июль 1, 2024

Abstract Atmospheric nitrogen (N) deposition in forests can affect soil microbial growth and turnover directly through increasing N availability indirectly altering plant‐derived carbon (C) for microbes. This impacts residues (i.e., amino sugars), a major component of organic (SOC). Previous studies have so far focused on the impact understory addition microbes residues, but effect plant canopy, pathway nature, has not been explicitly explored. In this study, we investigated whether how quantities (25 50 kg ha −1 year ) modes (canopy understory) temperate broadleaf forest under 10‐year additions. Our results showed that enhanced concentrations sugars residual C (MRC) their relative contributions to SOC, MRC was closely related addition. topsoil, high‐N significantly increased MRC, regardless mode. subsoil, only canopy positively affected implying indirect via plants plays more important role. Neither nor biomass (as represented by phospholipid fatty acids), community composition activity, suggesting likely stem from turnover. These findings indicate may underestimate highlighting processes uptake should be taken into consideration when predicting sequestration forests.

Язык: Английский

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Differential contribution of microbial and plant-derived organic matter to soil organic carbon sequestration over two decades of natural revegetation and cropping

The Science of The Total Environment, Год журнала: 2024, Номер 949, С. 174960 - 174960

Опубликована: Июль 30, 2024

Язык: Английский

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Microaggregates regulate the soil organic carbon sequestration and carbon flow of windproof sand fixation forests in desert ecosystems

CATENA, Год журнала: 2024, Номер 245, С. 108320 - 108320

Опубликована: Авг. 19, 2024

Язык: Английский

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Impacts of the Ecosystem Transformation in Red Jujube Commercial Forests on the Soil Organic Carbon Sources and Stability in the Lvliang Mountains

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

ABSTRACT Soil organic carbon (SOC) stabilization is vital for the mitigation of global climate change and retention soil stocks. The Loess Plateau a crucial ecological zone in China even worldwide major ecosystem protection. However, Plateau, there are knowledge gaps about response SOC sources to different transitions jujube economic forests. Therefore, our study used clean‐cultivated orchards as control (CK) selected five main transformation models abandoned on Lvliang Mountain: farmland (AF), replanted with Astragalus‐Bupleurum (AB), alfalfa (AL), Chinese pine (CP), arborvitae (PO). properties, physical fractions their correlations 0‐ 20‐cm layer at each sample site were analyzed. results show that significantly increased by affecting plant‐ microbe‐derived altering its components. Different treatments have varying impacts content. lignin phenol (VSC) content soils was greater than CK had following ranking: CP > AL PO AF AB ( p < 0.05). also total amino sugar (TAS) content, microbial residue (MRC), contribution carbon. Additionally, it promoted accumulation particulate (POC) mineral‐associated (MAOC) positively impacted stability. Among models, greatest impact phenols, sugars, stability, whereas contributed least SOC. this provide scientific basis assess select optimal modes commercial

Язык: Английский

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Long-term phosphorus addition enhances the contributions of plant lignin and microbial necromass to soil organic carbon in a rice–wheat rotation

Applied Soil Ecology, Год журнала: 2025, Номер 209, С. 106010 - 106010

Опубликована: Март 10, 2025

Язык: Английский

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Long-Term Effect of Lime Application on Quantity and Quality of Soil Organic Carbon in Double Rice Cropping System

Agriculture, Год журнала: 2025, Номер 15(6), С. 650 - 650

Опубликована: Март 19, 2025

Lime application is an effective measure for improving rice yield and alleviating soil acidity, whereas its long-term effects on the sequestration stability of organic carbon (SOC) remain unclear in paddy fields. Here, we report first 10-year experiment to examine impact lime quantity quality SOC acidic field with double cropping. was applied every 4 years without straw incorporation. Size density fractionation solid-state 13C nuclear magnetic resonance spectroscopy were employed physical fractions chemical composition SOC, respectively. The results showed that had no significant effect either total concentration or stocks. Compared non-lime control, led a 60.0% decrease free particulate (fPOC) but 17.9% increase occluded (oPOC) while reducing mineral-associated (MAOC) by 5.3%. Chemical analyses revealed 5.1% reduction content alkyl (C) 6.8% ratio Alkyl C O-Alkyl C. retention interactive SOC. Under removal, increased oPOC 56.6%, observed under return. MAOC it reduced this 9.8% proportion 9.5%, Therefore, conclude although stocks are not altered, reduces soil, suggesting liming may reduce stability.

Язык: Английский

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Response of the Stabilization of Organic Carbon to Straw Incorporation and Nitrogen Application: Evidence from Carbon Fractions and Bacterial Survival Strategies

Agronomy, Год журнала: 2025, Номер 15(5), С. 1034 - 1034

Опубликована: Апрель 25, 2025

Despite the global imperative to enhance carbon sequestration in agricultural landscapes, saline–alkali soils present distinctive soil–microbe constraints that limit our understanding of optimal management strategies. This study addresses critical knowledge gaps regarding mechanistic relationships between bacterial community structure and stabilization processes soil. A three-year field experiment was conducted Yellow River Delta, China, with two N levels (N1, 270 kg ha−1; N2, 210 ha−1) three C treatments (S0, 0 S1, 5000 S2, 10,000 ha−1). SOC by straw incorporation increased 16.34–22.86% 8.18–11.91%, no significant difference S1 S2 treatments, because specific mineralization rate (SCMR) treatment 13.80–41.61% higher than treatment. The reduced nitrogen application (N2) enhanced efficiency 3.40–12.97% compared conventional rates, particularly when combined half incorporation. Furthermore, N1S1 treatment, N2S1 induced qualitative transformations chemistry, increasing aromatic compounds (28.79%) while reducing carboxylic fractions (10.06%), resulting structural stability sequestered carbon. Bacterial analysis revealed shifts composition under different treatments. Half (S1) abundance oligotrophic strategists (Verrucomicrobiae Acidimicrobiia) decreasing copiotrophic bacteria (Bacteroidia), indicating a transition from r-strategy k-strategy microbial communities fundamentally altered cycling. were beneficial stabilize composition, reduce optimize survival strategy, thus achieve sequestration.

Язык: Английский

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Effect of chronic N deposition on soil carbon composition along a subtropical urbanization gradient: Underlying microbial taxa with ecological roles

Geoderma, Год журнала: 2025, Номер 458, С. 117328 - 117328

Опубликована: Май 2, 2025

Язык: Английский

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