[Relationship Between Source-Sink Landscape Pattern and Antibiotics in Surface Water in Peri-urban Watershed]
Min Li1,2, Jian-Feng Tang3, Li-Ding Chen1,2
1State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environment Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Huan Jing Ke Xue= Huanjing Kexue
|July 2, 2020
Summary
Land use patterns significantly impact surface water antibiotics. Optimizing "source" and "sink" landscapes in a watershed can reduce antibiotic contamination, protecting water quality and health.
Area of Science:
- Environmental Science
- Water Quality Management
- Ecotoxicology
Context:
- Peri-urban watersheds in the Yangtze River Delta face antibiotic contamination.
- Understanding land use impacts is crucial for water quality and public health.
Purpose:
- To quantitatively identify the effect of land use patterns on antibiotics in surface water.
- To analyze antibiotic distribution and identify the influence of source-sink landscape patterns.
Summary:
- Antibiotic concentrations varied significantly across sub-watersheds (1.12–53.74 ng·L⁻¹).
- Source-sink landscape patterns correlated with antibiotic types and concentrations.
- Land use composition, distance, elevation, slope, and location-weighted landscape index (LWLI) impacted antibiotic levels.
Impact:
- Optimizing source and sink landscapes can decrease antibiotic contamination in surface water.
- Source-Sink Landscape Model (SSLM) is an effective tool for watershed-scale landscape optimization.
- Findings support strategies for maintaining water quality and protecting resident health.
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