Soil air permeability is an important parameter which governs the aeration in soils that significantly promotes the root growth of field and grassland species and leads, in turn, to higher levels of evapotranspiration. The German Landfill Directive (2009) requires a rigid or a minimal shrinking capping system that ensures a high evapotranspiration rate to decrease the infiltration rate through the underlying waste body and therefore the leachate generation. This research is focussed on the questions if compacted glacial till can ensure the required rigidity and if and how air permeability is affected by soil compaction.

中文翻译：

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填埋场封顶系统中人工土壤压实对透气度各向异性的影响

土壤的透气性是控制土壤通气的重要参数，可显着促进田地和草原物种的根系生长，进而导致更高的蒸散量。在德国填埋指令（2009）需要一个刚性的或最小的收缩封盖系统，该系统保证了高的蒸散速度降低通过底层废物体和渗透速率因此浸出液产生。这项研究集中在以下问题上：压实的冰盖能否确保所需的刚度以及土壤压实是否以及如何影响透气性。