Soil phosphorus partitioning and bacterial communities vary with prolonged

Yukun Lu, Zipei Luo, Jing Yang, Lichao Wu, Sheng Lu

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Article in Frontiers in microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Yukun LuKey Laboratory of Soil and Water Conservation and Desertification Combating in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China.

Zipei LuoNational Engineering Laboratory of Applied Technology for Forestry & Ecology in Southern China, Central South University of Forestry and Technology, Changsha, China.

Jing YangKey Laboratory of Soil and Water Conservation and Desertification Combating in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China.

Lichao WuKey Laboratory of Soil and Water Conservation and Desertification Combating in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China.

Sheng LuKey Laboratory of Soil and Water Conservation and Desertification Combating in Hunan Province, College of Forestry, Central South University of Forestry and Technology, Changsha, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Methods: This study examined soil samples from Results: Soil P availability and its fractions changed significantly with cultivation period and aggregate size. Generally, as the cultivation period extended, soil available P (AP) declined by approximately 78.3%, while the root P accumulation factor increased by 657.91%, 687.01%, and 283.16% in large macroaggregates (LM), small macroaggregates (SM), and microaggregates (Mi), respectively. Maximum P adsorption capacity was highest in SM in the 2-year plantation but shifted to the Mi fraction in the 10- and 40-year plantations. Iron-bound phosphorus (Fe-P) was the predominant inorganic P fraction and showed a consistent distribution pattern across aggregate sizes. With increasing cultivation time, calcium-bound phosphorus (Ca-P) and occluded phosphorus (O-P) decreased, whereas aluminum-bound phosphorus (Al-P) increased in larger aggregates. AP and P fractions were negatively associated with bulk soil organic matter (SOM) content, while individual P fractions showed contrasting relationships with non-hydrophilic and hydrophilic SOM functional groups. Additionally, O-P, Al-P and Fe-P were positively correlated with bacterial ɑ-diversity in LM but negatively correlated in SM and Mi. Specific bacterial taxa were associated with different P forms. Discussion: Overall, the results show that aggregate specific P partitioning, SOM composition, P adsorption characteristics and bacterial community patterns are closely associated with soil P availability during prolonged

Indexed as

bacterial communityCamellia oleiferaorganic matterphosphorus adsorptionphosphorus fractionssoil aggregates

Identifiers

PMID42876676

DOI10.3389/fmicb.2026.1944090

PMCPMC13661960

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