Fill-soil effects on soil aeration status

This study seeks to quantify the effect of a fill soil, with and without an aeration system, on the aeration status of an underlying field soil. [UMN]

"The effect of a fill soil on soil aeration and the efficacy of a subsurface aeration system were investigated. Fill was applied to a depth of 30 cm (11.8 in) over the root zone (319 m² [381.5 yd²]) of six-year-old cherry trees (Prunus mahaleb). Treatments included fill soil with and without an aeration system, and a control (no fill). Oxygen diffusion rate (ODR) and soil moisture content were measured at three depths over a two-year period. Results indicate that fill soil caused a reduction in ODER in underlying soil, but variation within treatment plots did occur. In most cases, the subsurface aeration system did not improve ODR in the underlying soil. These findings lead to the consideration of factors that may contribute to the injury of established trees by fill soils." [Abstract]

 

[San Francisco, Mar. 5-6, 1998]

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