College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China.
Jiangxi Provincial Ganfu Plain Hydraulic Engineering Administration, Nanchang 330096, China.
Ecotoxicol Environ Saf. 2024 Oct 15;285:117026. doi: 10.1016/j.ecoenv.2024.117026. Epub 2024 Sep 12.
Utilizing infrared spectroscopy coupled with batch equilibrium methods, the adsorption and desorption characteristics of the novel Insecticide fluchlordiniliprole were assessed in four different soil types. It was found that fluchlordiniliprole's adsorption and desorption in these soils were consistent with the Freundlich isotherm, exhibiting adsorption capacities (K) ranging from 8.436 to 36.269. Temperature fluctuations, encompassing both high and low extremes, impaired the ability of soil to adsorb fluchlordiniliprole. In addition, adsorption dynamics were modulated by several other factors, including soil pH, ionic strength, amendments (e.g., biochar and humic substances), and the presence of various surfactants and microplastics. Although capable of leaching, fluchlordiniliprole exhibited weak mobility in most soils. Therefore, it appears that fluchlordiniliprole seems to pose a threat to surface soil and aquatic biota, but a minimal threat to groundwater. SYNOPSIS STATEMENT: This research examines the dynamics of fluchlordiniliprole in soil, an will aid in maintaining ecological safety and managing agricultural pesticides. The study's comprehensive analysis of adsorption, desorption, and soil migration patterns significantly contributes to our understanding of pesticide interactions with diverse soil types. The results of this study will enable the development of environmentally responsible agricultural practices.
利用红外光谱结合批量平衡方法，评估了新型杀虫剂氟氯虫双酰胺在四种不同土壤类型中的吸附和解吸特性。结果表明，氟氯虫双酰胺在这些土壤中的吸附和解吸均符合弗伦德利希等温线，吸附容量（K）范围为 8.436 至 36.269。温度波动，包括高温和低温极端情况，会降低土壤吸附氟氯虫双酰胺的能力。此外，吸附动力学还受到其他几个因素的调节，包括土壤 pH 值、离子强度、改良剂（如生物炭和腐殖质）以及各种表面活性剂和微塑料的存在。尽管氟氯虫双酰胺具有淋溶能力，但在大多数土壤中移动性较弱。因此，氟氯虫双酰胺似乎对表层土壤和水生生物群构成威胁，但对地下水的威胁较小。概要陈述：本研究考察了氟氯虫双酰胺在土壤中的动态，这将有助于维护生态安全和管理农业农药。该研究对吸附、解吸和土壤迁移模式的综合分析，极大地促进了我们对不同土壤类型中农药相互作用的理解。本研究的结果将有助于制定对环境负责的农业实践。
