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首页> 外文期刊>Scientific reports. >Topographic aspect affects the vegetation restoration and artificial soil quality of rock-cut slopes restored by external-soil spray seeding
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Topographic aspect affects the vegetation restoration and artificial soil quality of rock-cut slopes restored by external-soil spray seeding

机译：地形方面影响外土壤喷雾播种修复的岩质边坡植被恢复和人工土壤质量

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摘要

External-soil spray seeding (ESSS), a technique of spraying artificial soil materials onto bare slopes for vegetation cover construction, has been widely used to restore rock-cut slopes. However, studies on the effect of the practical application of this technique on different topographic aspects have been rarely performed. In this study, two topographic aspects, namely, north-facing versus south-facing, were investigated under two railway lines, and two local natural slopes (north-facing versus south-facing) were selected as references. Vegetation and soil conditions, which are paramount aspects of ecological restoration assessment, were characterized in terms of the richness and diversity indices, vegetation canopy cover, basic soil physico-chemical properties, and structural characteristics of these slopes. Results showed that (1) the topographic aspect significantly affected the vegetation restoration and artificial soil quality of rock-cut slopes restored by ESSS; (2) the ecological restoration effect of north-facing slopes were better than that of south-facing slopes; and (3) the vegetation and soil conditions of natural slopes were better than those of rock-cut slopes. Therefore, additional scientific management measures should be implemented to promote the ecological restoration of rock-cut slopes, especially for south-facing slopes.
机译：外土壤喷播播种（ESSS）是一种在裸露的斜坡上喷洒人工土壤材料以进行植被覆盖的技术，已广泛用于修复岩石切割的斜坡。然而，很少对该技术在不同地形方面的实际应用的效果进行研究。在这项研究中，在两条铁路线下调查了两个地形方面，即朝北与朝南，并选择了两个局部自然坡度（朝北与朝南）作为参考。植被和土壤条件是生态恢复评估的重要方面，其特征在于丰富度和多样性指数，植被冠层覆盖，基本土壤理化特性以及这些斜坡的结构特征。结果表明：（1）地形对ESSS修复的岩质边坡植被恢复和人工土壤质量有明显影响; （2）北坡的生态修复效果好于南坡; （3）自然坡的植被和土壤条件要好于挖石坡。因此，应采取其他科学管理措施，以促进切石坡的生态恢复，特别是向南坡。

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