Research on Ecological Landscape Facility Design and Runoff Reduction and Control Technologies

National Key R&D Programme ‘Water Pollution Control and Treatment’, Sub-project on Urban Surface Runoff Reduction and Control and Non-point Source Pollution Mitigation Technologies, 2013.01 - 2016.06

Introduction: Selecting ecological landscape facilities such as river buffer zones, ponds, and wetlands that integrate surface runoff reduction and control with non-point source pollution management, this research employs a combined approach of model testing, field trials, and mathematical simulation. It investigates and clarifies the rainfall runoff and pollution characteristics of surface spatial types within ecological landscape facilities. Based on the analysis of rainfall process characteristics and surface spatial features, it establishes comprehensive methods for regulating water quality and quantity under the influence of different ecological landscape facility planning and design. A computational model will be developed to predict output parameters—including runoff volume, runoff processes, characteristic pollutant loads, and pollution processes—under rainfall events and external water system inputs. This will involve proposing calculation methods for dynamic runoff coefficients and pollutant reduction coefficients based on rainfall processes, thereby providing fundamental technical methodologies and parameters for constructing integrated urban stormwater runoff management platforms.