累积在农田土壤中的重金属，一方面，会影响土壤的理化性质，导致土壤养分损

Accumulation of heavy metals in farmland soils, on the one hand, will affect the physical and chemical properties of the soil, resulting in the loss of soil nutrients and functional degradation, which affects crop growth. For example, when the content is higher Cd inhibit the growth of rice; on the other hand, heavy metals in the soil can be exposed by direct route (hand - oral ingestion, inhalation and skin contact respiratory) routes or food chain (soil - crop - human) of potential hazard to human health.

Heavy metals accumulated in farmland soil, on the one hand, will affect the physical and chemical properties of soil, resulting in soil nutrient loss and functional degradation, thereby affecting crop growth. For example, rice growth is inhibited when the Cd content is high; On the other hand, heavy metals in soil can pose a potential hazard to human health through direct exposure (hand-mouth intake, respiratory inhalation and skin contact) or food chain pathways (soil-crops-humans).

Heavy metals accumulated in farmland soil, on the one hand, will affect the physical and chemical properties of soil, lead to the loss of soil nutrients and functional degradation, thus affecting crop growth. For example, when the CD content is high, it will inhibit the growth of rice; on the other hand, the heavy metals in the soil can cause potential harm to human health through direct exposure pathway (hand mouth intake, respiratory inhalation and skin contact) or food chain pathway (soil crop human body)