A scaled physical model approach to simulate nonpoint source pollution in sloping landscapes for designed ecology.

ABSTRACT: Designed ecology aims to proactively create sustainable ecosystems, yet quantifying the ecological effects of design parameters remains challenging due to the complexity of mathematical models and the high cost of long-term field observations. This study presents a scaled physical model system simulating nonpoint source pollution processes in sloping landscapes, enabling rapid and controlled analysis of key design parameters in designed ecology. The results indicate that (1) through 24 laboratory experiments (slope length 0.25-1 m), runoff pollutant concentrations consistently follow a power-law decay over time, with 17 groups achieving a goodness-of-fit above 0.90. (2) Orthogonal analysis identified slope material and soil thickness as the most influential factors, while slope length and

SUBMITTER: Zhang H 

PROVIDER: S-EPMC12663560 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature