摘要
本文按照生态学原理,从分子生物学的角度,论证了化学肥料对土壤的污染及其对生态系统产生的潜在威胁.施用的化学肥料有一部分被农作物吸收,另一部分被冲失掉或挥发到大气中,从而污染了土壤、水源和大气.过量施用或滥用化学肥料,不但影响了农作物的生理生化过程,还降低了农产品的生物学质量,使人畜出现多种疾病.本文在强调了施用化学肥料会取得农作物高产的重要手段的同时,又提出了关于土壤—植物系统生态污染防治的措施,从而对化肥的合理施用,具有一定的指导性意义.
According to the ecological principle, and in the view of molecular biology, this essay gives the proof of the pollution of the soil and of the latent menace to the ecosystem by chemical fertilizers. Part of chemical fertilizer is absorbed by the crops, while the rest is washed away or volatilized into the air. As a result, water, soil and atmosphere are polluted. Excessive using or abusing of chemical fertilizer will not only effect the physiological and biochemical duration of the crops but also reduce its biological quality and cause mankind and animals many diseases. The essay puts forwards the measure of the prevention and control of ecopollution of soil-plant system as well as emphasizes that using chemical fertilizer is important to the high yield of the crops. Therefore, the article would be a guide to the rational use of agricultural chemical fertilizer.
关键词
化学肥料
生态环境
关系
ecosystem
pollution of the soil
chemical fertilizer
physiological and biochemical duration
