河道近自然恢复措施及其生态作用

Near-natural Control Restoring Measurements of Rivers and Their Ecological Functions

由于传统水利工程措施的种种弊端,河道近自然恢复措施已开始被大量应用到具体实践中,其主要遵循:①表面孔隙化②高坝低矮化③坡度缓坡化④材质自然化⑤施工经济化这五条原则,能够基本弥补传统措施对河流生态系统所造成的损害。介绍了多种河流近自然恢复措施及其生态作用,并以位于北京怀柔区的怀九河河道的综合整治为例,详细说明了各种恢复措施的具体操作,以期为其它河流的近自然恢复提供参考。

For the defaults of classical engineering measurements, near-natural control restoring measurements have been commonly used in managements of river channels, which can mostly restore damages caused by classical engineering measurements to river ecosystem, it follows such five principles： ①poring trend of surface②low trend of high dam ③graded trend of slope ④natural trend of materials ⑤economic trend of execution. The authors introduce lots of near-natural control restoring measurements of rivers and their ecological functions, and take the synthesis management of Huaijiu River located in Huairou district of Beijing for example to explain the detailed execution of those restoring measurements, the final object is offering references to near-natural control restoration of other rivers.