生物炭对土壤新烟碱类农药环境行为的影响

Research Progress in the Effect of Biochar on Soil Environmental Behaviors of Neonicotinoids

当前大量施用的新烟碱类农药已对土壤环境造成了潜在危害,添加生物炭是一种阻控该类农药在土壤中流动,并降低其生态风险的有效方法,因此厘清生物炭对土壤中新烟碱类农药环境行为的影响具有重要的现实意义。该文梳理并总结了新烟碱类农药在生物炭土壤中的主要环境行为,重点阐释了不同制备材料和热解温度、不同添加量的生物炭及其他主控因子对土壤新烟碱类农药吸附、解吸及降解行为影响;进而分析现阶段研究中的不足,对未来的研究方向进行展望,可为土壤中生物炭调控技术的发展提供参考。

The excessive application of neonicotinoids has caused potential threat to the soil environment.It is an effective method to control the neonicotinoids mobility and their ecological risk by adding biochar into the soil.It has practical significance to clarify the impact of biochar on soil-environmental behaviors of neonicotinoids.This research summarized and discussed the effect of biochar on the main soil-environmental behaviors of neonicotinoids,including adsorption,desorption and degradation.The key influencing factors were emphatically discussed,including biochar preparation materials,biochar pyrolysis temperature,biochar quality fraction and so on.This research analyzed the disadvantage of the current study and proposed future research directions.This research was also expected to provide certain reference for biochar control technology in the soil environment.