Big data integration and management system for agricultural non-point source pollution based on SWAT+WebGIS service

Abstract

The invention relates to a big data integration and management system for agricultural non-point source pollution based on SWAT+WebGIS service. The big data integration and management system comprisesa user registration module, a non-point source pollution simulation module, a non-point source pollution information database module, a non-point source pollution information-sharing module, a non-point source pollution information analysis module and a non-point source pollution information display module, all of which are orderly connected. The big data integration and management system has thefollowing beneficial effects: by creating a nationwide non-point source pollution information management platform, basic geographic information data and space information of nationwide drainage non-point source pollution can be stored, searched, analyzed and shared; functions of updating, maintaining, searching, counting and making thematic pictures of resources data are provided; rapid and effective non-point source pollution information service is provided for users or management departments; most complete resources are provided for non-point source pollution discharge rules; and a controlcapacity of non-point source pollution risks is improved.

Description

technical field [0001] The invention belongs to the technical field of non-point source pollution management, and relates to a fast integration and sharing of agricultural non-point source pollution information, in particular to a big data integration and management system of agricultural non-point source pollution based on "SWAT+WebGIS" service. Background technique [0002] Agricultural non-point source pollution refers to that in agricultural production activities such as farmland farming, chemical fertilizers, pesticides and heavy metals, etc. carry pollutants into water bodies along with surface runoff and underground seepage, and then cause eutrophication of water bodies or other forms of toxic and harmful pollution. . Agricultural non-point source pollution has the characteristics of extensiveness, lag, uncertainty, and large temporal and spatial variability. To set up long-term observation points for non-point source nitrogen and phosphorus loss in agricultural syste...

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Problems solved by technology

However, this method requires a lot of manpower, financial and material resources, and it is difficult to implement it under the characteristics of large spatial heterogeneity in climate, soil physical and chemical properties and agricultural management measures across the country.

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