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Updated: Jul 18, 2026
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Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment
Published on: July 22, 2019
[Substance flow analysis on phosphorus cycle in Dianchi basin, China]
1Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China. yi.liu@tsinghua.edu.cn
Huan Jing Ke Xue= Huanjing Kexue
|November 23, 2006
Summary
This study used substance flow analysis (SFA) to track phosphorus in the Dianchi basin, revealing key areas of use and loss. The findings offer insights for managing phosphorus to combat lake eutrophication.
Area of Science:
- Environmental Science
- Ecology
- Biogeochemistry
Context:
- Eutrophication is a major environmental issue in aquatic ecosystems.
- Understanding nutrient dynamics within socio-economic systems is crucial for mitigation.
- The Dianchi basin in southwest China faces significant eutrophication challenges.
Purpose:
- To apply a substance flow analysis (SFA) method to quantify phosphorus flows within the Dianchi basin.
- To establish a regional static SFA model (PHOSFAD) for phosphorus flow analysis.
- To identify aggregate characteristics of phosphorus throughput and use efficiencies.
Summary:
- A regional static substance flow analysis (SFA) model, PHOSFAD, was developed for the Dianchi basin in 2000.
- The model balanced societal phosphorus flows, analyzing sectors including mining, processing, farming, livestock, and household consumption.
- Key findings include the overall phosphorus throughput and the physical efficiencies of phosphorus utilization across different economic activities.
Impact:
- Provides a quantitative understanding of phosphorus dynamics in a socio-economic system.
- Offers valuable data for informed decision-making to mitigate lake eutrophication.
- Demonstrates the applicability of SFA for environmental management and policy development.
