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bio-drilling, Compaction Alleviation, and Fate of Storm-Water Management

Journal of Civil Engineering and Architecture 2020年第10期14卷 525-531页

作者： Yogendra Y.Raut Warren A.Dick The Air Force Institute of Technology(AFIT) 2950 Hobson WayWright-Patterson AFBOH 45433USA School of Environment and Natural Resources The Ohio State UniversityColumbusOH 43210USA

Compaction due to urbanization and farm operations disrupt natural soil profiles,increase impervious surface areas and decrease vegetative *** disruptions increase storm-water runoff at the expense of ground water recharge,degrading water quality and impairing aquatic habitats.A completely randomized experiment was conducted at the OSU/South Centers,Piketon,OH to assess the effect of Daikon radish(Raphanus sativus ***)on alleviating *** included long-term tillage,long-term no-till(NT)and a fallow soil compacted with farm equipment with and without Daikon *** was sown in mid-August and plants were winter-killed at the onset of first frost when the temperature dropped to-2.22°C(28°F).To assess progress in compaction alleviation,a model was developed to extrapolate information on soil porosity as an indicator of hydrological properties of *** population dynamics were also considered as a bio-indicator of compaction *** adoption of radish used as bio-drilling,alleviated overall compaction by 40%with reductions ranging from 90%at 0-13 cm to 30%at 56-64 cm *** fallow compacted soil with radish had the highest population of earthworm with total body mass of 3.6 kg·m-3,followed by NT at 0.8 kg·m^-3,and till at 0.4 kg·m^-3(pbio-drilling has potential to synergistically alleviate the effect of compaction,minimize flash-flooding and improve water quality.

关键词： bio-drilling bio-indicator decomposition compaction porosity Daikon Radish(Raphanus sativus L.var.oleiferus) earthworm population dynamics NT conventionally tilled(CT) penetration resistance

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