Heavy metal risk evaluation method for woodland utilization of sludge product

• Main Authors: LIU DONGSHENG, ZHANG QI, LI SEN, ZHANG XIU, ZHANG GUANSHI, FANG RUYING
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides a sludge product forest land utilization heavy metal risk evaluation method, and relates to the technical field of heavy metal risk evaluation. The method comprises the following steps: firstly, dividing the soil utilized by the forest land into a plurality of areas, collecting soil and plant samples in the plurality of areas, detecting and analyzing the concentrations of the heavy metal pollutants, constructing a relational graph of the concentrations of the heavy metal pollutants in the plurality of areas, and calculating the quantity and variety of the heavy metal in the soil in the collection areas to obtain an evaluation threshold; obtaining an evaluation threshold of the comprehensive potential ecological hazard index of heavy metal type and quantity adjustment, and evaluating the potential risk condition of heavy metal pollution in the research area; according to the heavy metal risk evaluation method disclosed by the invention, the content of heavy metals in soil and plants in a