调水引流工程生态与环境效应研究进展

调水引流工程不仅是水资源空间再分配的有效措施,也是生态环境的有效修复手段。本文在调水引流工程生态修复和环境整治等研究成果评述的基础上,回顾性分析了调水引流工程的生态与环境效应及其潜在影响;阐明了调水引流工程改善水环境的作用机理包括:引入清水的稀释作用;对水动力条件的直接改善,从而间接提高水体的自净能力。最后,指出水源的限制、工程的建设和运行费用、水质改善的非长期性、下游水体污染负荷的增加以及抑制藻类水华的机制尚不完全清楚等是目前调水引流工程应用的制约因素和面临的问题。

Progress of ecology and environment effect of water diversion project

Water diversion is not only an effective measure for the redistribution of water resources, but also an effective restoration means of ecology environment. On the basis of evaluation on research result of ecology restoration and environment renovation of water diversion project.This paper reviewed the effects of ecology and environment of water diversion project and its potential impact;it also elucidated the environment improvement mechanism of water diversion project which included dilution role and direct improvement of hydraulic conditions so as to indirectly enhance the self purification of water body.Finally,the current limiting factors for application of water diversion project and problems are limitation of water sources, costs for projects construction and operation, non long-term of water quality improvement,potential increase of pollution loading in lower reaches and unclear inhibition mechanism for algae bloom.