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湖泊科学  2007 

河道坡岸生态修复的土壤生物工程应用

DOI: 10.18307/2007.0510

Keywords: 上海市机场镇,土壤生物工程,河道坡岸,生态修复

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Abstract:

土壤生物工程是一项利用存活植物构筑边坡,以实现河道坡岸稳定和生态修复等生态功能的集成工程技术。本文给出了我国第一个大规模采用土壤生物工程修复河道坡岸的工程实例,工程选取本土植被,采用活枝扦插、活枝柴笼和灌丛垫三种主要的土壤生物工程技术构筑河道边坡。考察了工程实施前后河道坡岸植物新生根生物量、植物多样性、土壤剪切力、土壤紧实度和土壤湿度等生态参数,结果表明,工程实施10个月后,与裸露坡岸相比,施加土壤生物工程技术的河道坡岸稳定性大大提高,土壤抗侵蚀能力增强,物种增加,生物栖息环境和人居环境得到改善。该工程及研究为上海市浦东新区河道整治和坡岸生态修复提供了示范,也为我国各类边坡的侵蚀控制和生态修复提供了新的工程技术和方法。

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