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Updated: Jan 8, 2026
08:38
Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
Published on: February 15, 2019
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Dynamic Phosphorus Interactions at Soil Mineral-Organic Carbon Interfaces: A Critical Review
Xinfei Ge1,2, Wenjun Zhang1, Lijun Wang1
1College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
Environmental Science & Technology
|December 11, 2025
Summary
Soil organic carbon (SOC) transforms mineral-associated phosphorus (P) compounds, influencing P availability in farmland. Understanding these interactions is key for sustainable agriculture and environmental P management.
Area of Science:
- Soil Science
- Environmental Chemistry
- Agricultural Science
Background:
- Phosphorus (P) is a vital agricultural macronutrient, but its availability is limited by mineral-P associations (MPAs) at soil-mineral interfaces.
- Soil organic carbon (SOC) plays a crucial role in transforming these MPAs, thereby mobilizing P.
Purpose of the Study:
- To synthesize interface processes and mechanisms governing MPA formation and transformation.
- To link these processes to farmland P availability.
- To introduce a novel conceptual framework for SOC-driven MPA transformation.
Main Methods:
- Literature review synthesizing existing research on soil-mineral-organic carbon interactions.
- Development of a conceptual framework detailing SOC's role in MPA transformation.
- Analysis of MPA properties influencing P mobilization efficacy.
Main Results:
- MPA formation occurs via adsorption and precipitation, influenced by mineral and P phase characteristics.
- Reactive SOC compounds drive MPA transformation through desorption and dissolution.
- A trade-off exists between MPA formation and transformation dynamics, affecting legacy P availability.
Conclusions:
- Understanding mineral-organic carbon interfaces is crucial for predicting long-term P fertility.
- Innovative SOC-based P management strategies can enhance sustainable agriculture and environmental quality.
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