河道整治中的生态环境问题与生态协调的河道整治

发布时间：2018-06-18 09:25

本文选题：环境 + 河道整治　；参考：《水利水电技术》2017年05期

【摘要】：以维护河流生态环境、使河道整治与河流生态需求相协调为目标,以分析河流形态与生态系统的关系为重点,研究滩、槽边界改变对河流生境产生的影响、传统河道整治对河床演变的干扰及对河流生物多样性的胁迫。探讨了基于生态协调的河道整治原则、整治理念、综合整治模式,提出现代河道整治规划应考虑河流系统的生态平衡需求,掌控对河道边界干扰的"适宜度",同时采用生态工程措施。两个典型治理案例表明,基于生态协调的河道整治理念与方法,采用透水生态型护坡、在河漫滩建设湿地保护区、在河道水陆交错带设置过渡缓冲区、沿河道两岸建立绿色廊道景观等措施,使治理河段的辛普森多样性指数、河流结构和功能评价值均有明显改善。新型生态工程材料具有良好的生态恢复能力、结构柔性及整体稳定性,是实现生态协调河道整治的重要技术基础。
[Abstract]:In order to maintain the ecological environment of rivers, coordinate the regulation of rivers with the ecological demands of rivers, and analyze the relationship between river forms and ecosystems, the effects of the changes of beach and channel boundaries on the habitats of rivers are studied. Traditional river regulation interferes with river bed evolution and stresses river biodiversity. This paper discusses the principles, ideas and modes of river regulation based on ecological coordination, and puts forward that the ecological balance needs of river system should be taken into account in modern river course regulation planning. Control the "suitability" of the river boundary disturbance, and adopt ecological engineering measures. Two typical treatment cases show that, based on the ecological coordination of the idea and method of river regulation, using permeable ecological slope protection, constructed wetland reserve in the floodplain, and set up a transitional buffer zone in the river channel interlacing zone. The establishment of green corridor landscape along the river channel can improve the Simpson diversity index and the evaluation value of river structure and function. New ecological engineering materials have good ecological restoration ability, flexible structure and overall stability, which is an important technical basis for ecological coordinated river regulation.
【作者单位】：华北水利水电大学水利学院;郑州澍青医学高等专科学校;
【基金】：国家自然科学基金项目(51579013)
【分类号】：TV85;X52

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