再生水灌溉滨海高盐土壤环境雌激素累积及迁移转化规律

再生水灌溉是滨海地区重要的节水举措，但再生水中所含环境雌激素对滨海常见土壤（高盐土壤）的污染不可忽视。滨海高盐土壤特殊的理化性质和特有的盐胁迫逆境均会对环境雌激素的累积及迁移转化产生影响，而目前鲜见相关研究报道。本项目以典型环境雌激素为目标污染物，拟探讨再生水灌溉滨海高盐土壤环境雌激素的累积规律，考察滨海高盐土壤中环境雌激素的吸附解吸规律，研究滨海高盐土壤中环境雌激素的生物降解去除规律，探讨植物对高盐土壤中环境雌激素的吸收去除规律，设定不同的盐渍环境、灌溉、土壤组分、生源要素（肥料）添加及外源微生物添加处理，探讨多种因素对再生水灌溉滨海高盐土壤环境雌激素累积、吸附解吸及生物去除过程的影响机制，旨在揭示再生水灌溉滨海高盐土壤环境雌激素累积及迁移转化规律。通过开展本研究可为促进滨海地区合理利用再生水资源, 保障土壤质量安全提供重要理论依据和技术支撑。

Although reclaimed water irrigation is an important practice in the coastal region due to shortage of water resource, the environmental hormone pollution of the coastal saline soil caused by reclaimed water irrigation should not be neglected. The coastal saline soil, with its special physical-chemical properties and salt stress, might have great influence on the accumulation, fate and transport of environmental hormones. However, rare information on this topic is available. In this study, environmental hormones were chosen as the target contaminants. The accumulation of environmental hormones in the coastal saline soil during reclaimed water irrigation will be evaluated. The sorption-desorption process of environmental hormones in the coastal saline soil will be investigated. The biodegradation of environmental hormones in the coastal saline soil, as well as the plant uptake of environmental hormones under saline environment will also be investigated. The influence of many factors including saline environment, irrigation approaches, soil components, fertilizers, and microorganisms on the processes of accumulation, sorption-desorption, and bioremoval of environmental hormones in the coastal saline soil will be evaluated. The final goal of this study is to obtain initial information on the accumulation, fate and transport of environmental hormones in the coastal saline soil during reclaimed water irrigation. These findings will subsequently provide theoretical and technical support for the sustainable use of reclaimed water for irrigation, soil quality, and soil safety in the coastal zone.