Microbial competition for phosphorus limits the CO2 response of a mature forest

Nature, Journal Year: 2024, Volume and Issue: 630(8017), P. 660 - 665

Published: June 5, 2024

Abstract The capacity for terrestrial ecosystems to sequester additional carbon (C) with rising CO 2 concentrations depends on soil nutrient availability 1,2 . Previous evidence suggested that mature forests growing phosphorus (P)-deprived soils had limited extra biomass under elevated (refs. 3–6 ), but uncertainty about ecosystem P cycling and its response represents a crucial bottleneck mechanistic prediction of the land C sink climate change 7 Here, by compiling first comprehensive budget P-limited forest exposed , we show high likelihood captured microorganisms constrains recycling plant uptake. Trees used efficiently, microbial pre-emption mineralized seemed limit trees increased uptake assimilation and, therefore, their C. Plant strategies stimulate uptake, such as increasing rhizosphere release soil, will probably be necessary increase capture into new biomass. Our results identify key mechanisms which limits fertilization tree growth guide development Earth system models predict future long-term storage.

Language: Английский

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Strategies to acquire and use phosphorus in phosphorus-impoverished and fire-prone environments

Plant and Soil, Journal Year: 2022, Volume and Issue: 476(1-2), P. 133 - 160

Published: May 19, 2022

Abstract Background Unveiling the diversity of plant strategies to acquire and use phosphorus (P) is crucial understand factors promoting their coexistence in hyperdiverse P-impoverished communities within fire-prone landscapes such as cerrado (South America), fynbos Africa) kwongan (Australia). Scope We explore P-acquisition strategies, highlighting one that has received little attention: acquisition P following fires temporarily enrich soil with P. This strategy expressed by fire ephemerals well fast-resprouting perennial shrubs. A plant’s leaf manganese concentration ([Mn]) provides significant clues on strategies. High [Mn] indicates carboxylate-releasing but other exudates may play same role carboxylates acquisition. Intermediate suggests facilitation P-mobilising neighbours, through release or functionally similar compounds. Very low no immediate Release phosphatases also represents a P-mining strategy, mobilising organic Some species express multiple depending time since germination fire, position landscape. In severely landscapes, photosynthetic P-use efficiency converges among species. Efficient exhibit rapid rates photosynthesis at concentrations. high P-remobilisation from senescing organs another way efficiently, extended longevity organs. Conclusions Many coexist tend converge. Common which we know are those ephemeral first respond after fire. surmise far more widespread than envisaged so far, likely accumulate metals, exemplified Mn, metalloids, selenium, fluorine, form fluoroacetate, silicon. important consider when restoring sites biodiverse regions cropping systems strongly P-sorbing soils, because some only be able establish themselves next neighbours mobilise

Language: Английский

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Catalytically Active Carbon for Oxygen Reduction Reaction in Energy Conversion: Recent Advances and Future Perspectives

Advanced Science, Journal Year: 2024, Volume and Issue: 11(22)

Published: April 5, 2024

Abstract The shortage and unevenness of fossil energy sources are affecting the development progress human civilization. technology efficiently converting material resources into for utilization storage is attracting attention researchers. Environmentally friendly biomass materials a treasure to drive new‐generation sources. Electrochemical theory used convert chemical substances electrical energy. In recent years, significant has been made in green economical electrocatalysts oxygen reduction reaction (ORR). Although many reviews have reported around application biomass‐derived catalytically active carbon (CAC) catalysts ORR, these only selected single/partial topic (including synthesis preparation from different sources, structural optimization, or performance enhancement methods based on CAC catalysts, CACs) discussion. There no review that systematically addresses latest synthesis, enhancement, applications related CAC‐based synchronously. This fills gap by providing timely comprehensive summary following sections: exposition basic catalytic principles composition properties various types biomass, analysis traditional popular optimization strategies, practical oxidative electrocatalysts. provides advances provide research directions design ideas catalyst synthesis/optimization contributes industrialization electrocatalysis electric storage.

Language: Английский

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Toward a coordinated understanding of hydro‐biogeochemical root functions in tropical forests for application in vegetation models

New Phytologist, Journal Year: 2024, Volume and Issue: 242(2), P. 351 - 371

Published: Feb. 28, 2024

Summary Tropical forest root characteristics and resource acquisition strategies are underrepresented in vegetation global models, hampering the prediction of forest–climate feedbacks for these carbon‐rich ecosystems. Lowland tropical forests often have globally unique combinations high taxonomic functional biodiversity, rainfall seasonality, strongly weathered infertile soils, giving rise to distinct patterns traits functions compared with higher latitude We provide a roadmap integrating recent advances our understanding belowground function into focusing on water nutrient acquisition. offer comparisons empirical model that represent important processes forests. focus on: (1) fine‐root soil exploration, (2) coupling trade‐offs vs acquisition, (3) aboveground–belowground linkages plant use. suggest avenues representing extremely diverse communities computationally manageable ecologically meaningful groups models linked hydro‐nutrient functions. undergoing warming, shifting regimes, exacerbation scarcity caused by elevated atmospheric CO 2 . The accurate representation is crucial interactions this biome climate.

Language: Английский

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Placing cropping systems under suboptimal phosphorus conditions promotes plant nutrient acquisition and microbial carbon supply without compromising biomass

Soil Biology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109753 - 109753

Published: Feb. 1, 2025

Language: Английский

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Plant nutrient‐acquisition strategies contribute to species replacement during primary succession

Journal of Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Plant nutrient‐acquisition strategies (NAS) linking soil nutrients to plant growth are considered crucial species replacement during primary succession. However, empirical evidence from field studies remains scarce. We examined the of Hippophae tibetana (Elaeagnaceae) by Populus purdomii (Salicaceae) first three stages (S1–S3) succession along Hailuogou postglacial chronosequence in southwest China. investigated changes scavenging, mining and N 2 ‐fixing two with varying nutrient levels evaluated how these NAS influenced performance Bioavailable nitrogen phosphorus concentrations increased significantly near detection limits at S1 stage 60 41 mg kg −1 S3 stage, respectively. Despite this, H. maintained strategies, as indicated rhizothamnia, cluster roots lower pH, higher carboxylate concentration acid phosphatase activities surrounding compared those around P . all sites. Conversely, relied on scavenging evidenced ectomycorrhizal colonization specific root length, smaller diameter more negative leaf δ 13 C than Leaf concentration, relative abundance , were S1, but this reversed S3. Linear mixed models that positively correlated low levels, while can enhance relatively high levels. regression showed accounted for 13% 31% variation abundance, The residuals further reduced 35% 39% when accounting combined effects strategies. Results incubation experiments, functional gene enzymatic microbial mineralization solubilization similar rhizosphere both species. Synthesis Distinct investments changing efficiency response availability key drivers turnover These findings underscore importance belowground mechanisms shaping aboveground community dynamics early pedogenesis.

Language: Английский

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Negatively charged nano-hydroxyapatite can be used as a phosphorus fertilizer to increase the efficacy of wollastonite for soil cadmium immobilization

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 443, P. 130291 - 130291

Published: Oct. 30, 2022

Language: Английский

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Influence of paraments on the transformation behaviors and directional adjustment strategies of phosphorus forms during different thermochemical treatments of sludge

Fuel, Journal Year: 2022, Volume and Issue: 333, P. 126544 - 126544

Published: Nov. 5, 2022

Language: Английский

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Amazonian deforestation and its influence on soil biotic factors and abiotic properties

Pedobiologia, Journal Year: 2023, Volume and Issue: 97-98, P. 150865 - 150865

Published: Feb. 24, 2023

Language: Английский

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Root‐associated fungal communities are influenced more by soils than by plant‐host root traits in a Chinese tropical forest

New Phytologist, Journal Year: 2023, Volume and Issue: 238(5), P. 1849 - 1864

Published: Feb. 18, 2023

Forest fungal communities are shaped by the interactions between host tree root systems and associated soil conditions. We investigated how environment, morphological traits, chemistry influence root-inhabiting in three tropical forest sites of varying successional status Xishuangbanna, China. For 150 trees 66 species, we measured morphology tissue chemistry. Tree species identity was confirmed sequencing rbcL, root-associated (RAF) were determined using high-throughput ITS2 sequencing. Using distance-based redundancy analysis hierarchical variation partitioning, quantified relative importance two variables (site average total phosphorus available phosphorus), four traits (dry matter content, density, specific tip abundance, forks), elemental concentrations (nitrogen, calcium, manganese) on RAF community dissimilarity. The environment collectively explained 23% compositional variation. Soil 76% that Twenty taxa differentiated among sites. most strongly affects assemblages this forest. Variation calcium manganese hosts, principally an architectural trade-off dense, highly branched vs less-dense, herringbone-type systems, important secondary determinants.

Language: Английский

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