城市河流生态系统修复刍议

新时期水土保持发展要求水土保持试验示范工作必须走综合发展的道路。对此,北京市延庆县水资源局拟在原水土保持科技示范区的基础上建设综合型水土保持科技示范园,建设内容包括水土保持综合实验室和水土保持示范基地两大功能区及黄土地貌侵蚀沟道原始侵蚀类型展示区、侵蚀沟道治理与维护措施示范区、坡面径流监测区、北方植物引种实验示范区、节水灌溉示范区、生态治理区、生态能源应用示范区和生态修复区8个小区。

Brief Discussion on Ecosystem Restoration of Urban River

The concept and its connotation of ecosystem restoration of urban rivers were defined.The restoration should be a kind of reconstruction or alternation,including river restoration and the optimization of a socio-economic system.The integrative multi-object restoration,aiming at ecosystem health of urban river was proposed,and the principles for ecosystem restoration of urban rivers were given.Furthermore,ecosystem restoration mode of urban rivers described as "pollution source controlling,discharge detaining,silt cleaning,capacity increasing,greening,bank widening,landscape constructing,habitat building" was established.Finally,restoration technologies,including channel restoration technology outside and inside rivers habitat and fishway restoration technology,physical form restoration technology were summarized.