面向人与自然和谐共生的水灾害和谐防控评价OA

[Objective]The scientific identification and improvement of deficiencies in regional harmonious water disaster prevention and control are vital for achieving harmonious coexistence between human and nature.[Methods]This study,based on the concept of harmonious coexistence between human and nature,elucidated the definition and connotation of har-monious prevention and control of water disasters.Four discriminant criteria were proposed:controllable disaster risk,ecosys-tem health,stable disaster-bearing resilience,and prevention and control carrying capacity.An assessment system for harmo-nious prevention and control of water disasters was constructed,comprising modules such as evaluation indicators,evaluation methods,and factor identification.On this basis,the SMI-P comprehensive evaluation method was employed to quantify the water disaster harmonious prevention and control index(WPI).Methods such as the standardized precipitation evapotranspi-ration index(SPEI),run theory,and the InVEST model were used to quantify the evaluation indicators,while obstacle de-gree analysis was applied to identify the influence degree of each indicator.A case study was conducted in Henan Province with regional zoning.[Results](1)From 2008 to 2023,the WPI of 18 prefecture-level cities in Henan Province showed an overall steady upward trend,with Jiaozuo City exhibiting the highest multi-year average WPI(WPI=0.640).(2)During the study period,significant spatial disparities in WPI were observed,with western and northern Henan outperforming eastern and southern regions,while central Henan lagged behind in harmonious prevention and control of water disasters.(3)The proportion of investment in water conservancy facilities was the primary obstacle factor affecting WPI,and ecosystem health was the key criterion driving WPI changes.[Conclusions]The constructed assessment system for harmonious water disaster prevention and control can effectively quantify and evaluate regional water disaster prevention and control levels,revealing its spatiotemporal evolution patterns and core constraints,with theoretical rationality and practical operability.The research find-ings can provide data support and decision-making references for water disaster prevention and control in Henan Province's prefecture-level cities.