Abstract:Watershed is a complex socio-economic and ecological interaction system. With the urbanization development, flood magnitude, frequency and pathway have been altered; it in turn, has posted impacted on economics, society and ecosystem. To address the problems, watershed flood-society interaction modeling and flood risk dynamics were developed, which provided calculation and analysis methods for flood management and decision support systems. In this paper, flood risk on waterway and waterlogging are discussed. An equation-based formal modeling approach for multiple factors interaction system is proposed. The representations of the equations and their characteristics are discussed. Considering urbanization in watershed, levee flood defense and drainage, a framework of watershed flood-society multiple factors interaction is developed. The dynamic interaction equations and watershed dynamic flood risk are discussed.
[1] Baldassarre G Di,Viglione A,Carr G,etal.Socio-hydrology:conceptualising human-flood interactions[J]. Hydrol. Earth Syst. Sci., 2013(17):3295-3303.
[2] 张冬冬, 严登华, 王义成, 等. 城市内涝灾害风险评估及综合应对研究进展[J]. 灾害学, 2014, 29(1):144-149.
[3] Chen Y, Zhou H, Zhang H, etal. Urban flood risk warning under rapid urbanization[J].Environmental Research, 2015(139):3-10.
[4] Sterman J D. Business Dynamics Systems Thinking and Modeling for a Complex world[M].New York:Irwin McGraw-Hill, 2000:139-140.
[5] Westphal J A,Thompson D B, Stevens G T, etal.Stage-discharge relations on the middle Mississippi river[J].Journal of Water Resources Planning and Management, 1999, 125(1):48-53.
[6] Maidment D R. Handbook of Hydrology[M]. New York,USA:McGraw-Hill, 1993.
[7] Mishra S k, Singh V P.Another look at SCS-CN method[J].Journal of Hydrologic Engineering, 1999, 6(5):451-452.
[8] Mishra S K, Singh V P.Long-term hydrological simulation based on the soil conservation service curve number[J].Hydrological Processes, 2004(18):1291-1313.
[9] Chu X F, Steinman A. Event and continuous hydrologic modeling with HEC-HMS.[J]. Journal of Irrigation and Drainage Engineering, 2009, 135(1):119-124.