Open AccessFill Soil Effects on Soil Aeration and Tree Growth
Author(s) -
J. D. MacDonald,
Laurence R. Costello,
John Lichter,
D. Quickert
Publication year - 2004
Publication title -
arboriculture and urban forestry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.222
H-Index - 47
eISSN - 2155-0778
pISSN - 1935-5297
DOI - 10.48044/jauf.2004.003
Subject(s) - aeration , soil compaction , environmental science , water content , soil water , agronomy , soil science , biology , geology , geotechnical engineering , ecology
A 4-year study was conducted to evaluate the effects of fill soil on tree growth and soil aeration. Cherry trees (Prunus ´ yedoensis 'Afterglow') were grown for 3 years in a test plot in Davis, California, U.S., after which the block of trees was divided into three subplots. In one subplot, 30 cm (12 in.) of compacted fill soil was installed over the root zone, while in a second subplot, aeration piping was installed prior to fill installation. A third subplot was left without fill (control). Oxygen diffusion rate (ODR) and moisture levels were measured in the base soil before and after addition of fill. Trunk diameter was measured at fill installation and 1 year later, while stem water potential was measured after 1 year. Fill soil neither reduced soil aeration levels nor had a negative impact on tree growth. Tree growth in fill subplots was equivalent to or greater than controls. Aeration piping did not enhance oxygen diffusion rates in the underlying field soil. Roots developed in the fill but did not grow preferentially around aeration pipes. Although aeration deficit may play a role in fill-induced plant injury, other factors may play an equal or greater role. These factors include soil compaction and root injury during fill installation, and water deficit following fill installation. All factors should be considered in pre- and post-fill tree management plans.