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土工合成材料植被生长基质高陡硬地边坡生态修复可行性研究

杨庚 鑫1, 朱忠 平1, 刘 钊1, 张 旭1, 廖嘉 俊2

摘要

基础设施的兴建产生了大量的高陡岩石、混凝土(硬地)边坡,此类边坡表面缺乏合适的基质,难以维持植被的生长。由此,本文通过实验验证了一种以土工合成材料替代土壤的高陡硬地边坡生态修复方法(GVS)。为评估该方法在高陡硬地边坡生态修复的可行性,并为后续GVS高陡硬地边坡生态修复研究提供数据支撑。对种植于土工合成材料植被生长基质的植被进行65天的连续监测,以植被的茎叶长度作为植被健康状况的指标,对在不同实验条件下的植被生长情况进行分析。结果表明:1. GVS具有高陡硬地边坡生态修复的可行性。2. 适宜的灌溉量和可降解覆盖层可为植被创造充分湿润和避免阳光暴晒的环境,促进植被的萌芽和生长。3. 提出GVS生态修复机理,改变传统修复技术依赖土壤的情况。研究结果可为高陡硬地边坡生态修复提供新的生态修复方法,也为后续GVS高陡硬地边坡生态修复研究提供数据支撑。

关键词

边坡生态修复;土工合成材料;植被生长;植被复合基质

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