【摘要】 简述水体内源污染的形成机制、影响因素和研究技术.环保疏浚是应用广泛的水体内源污染控制措施.概述环保疏浚的作用、相关技术和评估手段.环保疏浚可对水体指标及水生动植物产生负面作用.选择合适的疏浚厚度、频率和季节可提高环保疏浚效果.综合考虑水体环境并改进水动力学模型、泥沙输移模型和污染物质量平衡模型可揭示底泥污染的释放机制,以制定有效的疏浚策略.更多还原

【Abstract】 The formation mechanism, influencing factors and research techniques of internal pollution has been described. Environmental dredging has become the most widely used measure to control the internal pollution of water body. The function,related technology and evaluation methods of environmental dredging has been summarized. It has been reported that environmental dredging has negative effect on the watery condition improvement and watery living organisms. Results showed that choosing appropriate dredging depths, frequency and seasons can largely improve environmental dredging effects. To aid in analyzing watery environments and improving hydrodynamic,mass balance,sediment particle transport and dispersion models, it is available to further reveal the transformation and migration mechanism of sediment pollution and establish effective environmental dredging strategy.更多还原