Nitrogen and phosphorus concentration zoning control method of surface water in the Haihe River Basin

Abstract Various uncertain influencing factors and incomprehensible mechanisms have posed daunting challenges to the management treatment of regional surface water environment quality. The unified measures “one-size-fits-all” approach limit effectiveness. Therefore, considering natural human activities which are major affecting quality, present study proposed a set zoning control schemes for nitrogen phosphorus concentrations in based on its attributes. Selecting DEM, rainfall, vegetation type, soil land use, employing “grid transformation”, “data extraction”, “attribute superposition” GIS software “correlation analysis”, “cluster “principal component analysis” SPSS software, Haihe River Basin was divided into prevention zone, non-control zone with different attribute sets by correlation coefficient R2 pollution therein. Based data 276 quality monitoring sites, multiple nonlinear stepwise regression analysis conducted construct relationship between single indicator attributes three zones. results essential practical significance survey Basin. Meanwhile, it provides innovative insights environmental other regions.