Risk assessment method and system for environmental pollution after livestock farm manure returning to field

• Main Authors: DENG BING, WEN JIANGHUI, PU ZHENYU, ZHAN XIAOMEI
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a risk assessment method and system for environmental pollution after livestock and poultry manure returning, which are used for assessing the risk that nitrogen and phosphorus nutrient elements pollute the water environment around the farmland after livestock and poultry manure returning, and constructing a risk assessment index model in combination with the source of a manure returning farm and the nitrogen and phosphorus loss process of manure returning. For nominal and quantitative double-attribute index values, indexes of different attributes are converted by adopting binary semantics, a weight single-target planning model is established, a fireworks algorithm is used for solving weights, and a weighted average OWA operator is used for fusing the indexes of the farm to obtain a comprehensive binary semantic value, and the comprehensive binary semantic value is set as a risk level of the farm. And the subjectivity of manually dividing risk levels is avoided. 本发明公开了一种养殖场粪污还田后环境污染的风险