Research With Soil Environmental Quality Assessment Model And The Evaluation System In Yunnan Province

Soil environmental pollution is related to residential safety and food safety,and is a very important content in the field of national environmental protection.In recent years,my country has paid more and more attention to soil environmental safety,continuously revised various standards,and paid particular attention to the pollution and treatment of land deeply involved in people’s lives,such as agricultural land and construction land.In the monitoring of soil environmental quality,the analysis and discrimination of soil pollution data is of great significance as an important basis for pollution disposal.The current local soil pollution level assessment work has problems such as single judgment method,inability to reflect the comprehensive situation of multiple levels and multiple pollution factors,and difficult data visualization.Aiming at the current problems in soil environmental quality monitoring in Yunnan Province,this paper sorts out a large amount of soil environmental quality monitoring data,clarifies the data structure,and uses the sorted data for follow-up work.At the same time,in order to evaluate the soil environmental quality in Yunnan Province according to the characteristics of the soil environment in Yunnan Province,this paper summarizes and proposes an analytic hierarchy process based on the national standard and Nemerow index method,which can be widely used in Yunnan Province.Comprehensive index soil environmental quality assessment model and assessment method.Starting from the toxicological properties of heavy metal elements,this method uses the analytic hierarchy process to model and evaluate the toxicological properties of eight heavy metal elements,calculates the weights,and proposes a model result based on the actual situation.Expert scoring method consistent with national standard evaluation results.Next,this article uses national standards and Nemerow method to assess the soil environmental quality risk of a certain place in Yunnan Province,focusing on scoring the sampling points that have exceeded the standard according to the degree of excess,and the sampling points are divided into low risk,medium risk,and The four risk levels of high risk and ultra-high risk are given and the evaluation results of the three methods are given and compared to provide a reference result for subsequent soil pollution control work.Finally,this paper uses WebGIS combined with html+css+vue.js+php+mysql technology to design a visual software front-end and back-end development plan that can be used to select the analysis scope and display the evaluation results of multiple models of soil environmental quality monitoring data.And developed a soil environmental quality assessment system adapted to the characteristics of environmental monitoring in Yunnan Province.The system is a visual display system for soil environmental quality monitoring data and evaluation results.It has been deployed and operated in the data center of Yunnan Environmental Monitoring Station,which has realized the informatization and automated evaluation of soil environmental quality data in Yunnan Province.