Soil Properties, Heavy Metal Accumulation, and Ecological Risk in Vegetable Greenhouses of Different Planting Years

• Published in: Huanjing kexue Vol. 43; no. 2; p. 995
• Main Authors: Ren, Qiang, Sun, Rui-Ling, Zheng, Kai-Xuan, Liu, Yi-Dan, Ruan, Xin-Ling, Wang, Yang-Yang
• Format: Journal Article
• Language: Chinese
• Published: China 08.02.2022
• Subjects: China; Cities; Environmental Monitoring; Metals, Heavy - analysis; Risk Assessment; Soil; Soil Pollutants - analysis; Vegetables; China; Cities; greenhouse soil; risk assessment; heavy metals; fraction; planting years
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.202104248

The vegetable greenhouse soils in Yanglou Town, Ruzhou City, Henan Province were taken as the research object in the present study to explore the difference in soil physical and chemical properties and the total and fraction of heavy metals of different planting years. The potential ecological risks of heavy metals in greenhouse soils with different planting years were assessed by using single and comprehensive potential ecological risk index methods. The results showed that the soil pH of vegetable greenhouses increased, and fertility factors such as organic matter, available phosphorus, and alkali-hydrolyzable nitrogen accumulated to a certain extent compared to the control group, whereas catalase showed a decreasing trend. Correlation analysis showed that the planting years were significant positively correlated with pH ( <0.05) and organic matter ( <0.01) and significant negatively correlated with catalase ( <0.01). The amount of heavy metals in the vegetable greenhouse soils increased with the increase i