不同生态护坡下水土保持效果动态变化研究

发布时间：2018-06-17 12:49

本文选题：生态护坡 + 植物演替　；参考：《人民长江》2017年17期

【摘要】：为研究不同生态护坡措施实施后其护坡效果随时间的变化情况,选取北京市昌平区朱辛庄水土保持示范基地内的4组不同护坡类型径流小区为研究对象,通过连续5 a的植被调查和人工模拟降雨实验研究,对各个护坡径流小区的植被状况以及产流和产沙数据进行了分析。结果显示:4种生态护坡实施后,随着时间推移,护坡植物种类会朝着当地土生植物种类发生演替,从而导致护坡的水土保持效果发生变化,每种生态护坡的效果各不相同;单一植物护坡容易受到植物演替规律的影响,而采用工程与植物措施相结合的护坡形式,水土保持效果则更为持久有效。研究成果可为今后生态护坡技术的推广应用提供借鉴。
[Abstract]:In order to study the change of slope protection effect with time after the implementation of different ecological slope protection measures, four groups of runoff plots of different slope protection types in Zhuxinzhuang soil and water conservation demonstration base in Changping District of Beijing were selected as the research objects. The vegetation status, runoff and sediment yield data of each slope protection runoff plot were analyzed by means of vegetation investigation and artificial simulated rainfall experiment for 5 consecutive years. The results showed that after the implementation of the four kinds of ecological slope protection, with the passage of time, the species of slope protection plants would succession to the native species, which resulted in the change of soil and water conservation effect of slope protection, and the effects of each ecological slope protection were different. Single plant slope protection is easy to be affected by plant succession law, but the soil and water conservation effect is more lasting and effective by the combination of engineering and plant measures. The research results can be used for reference for the application of ecological slope protection technology in the future.
【作者单位】：环境保护部华南环境科学研究所;中国能源建设集团广东省电力设计研究院;
【分类号】：S157

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