PT  - JOURNAL ARTICLE
AU  - Watson, Gary W.
AU  - Kupkowski, Gary
TI  - Effects of a Deep Layer of Mulch on the Soil Environment and Tree Root Growth
AID  - 10.48044/jauf.1991.056
DP  - 1991 Sep 01
TA  - Arboriculture & Urban Forestry (AUF)
PG  - 242--245
VI  - 17
IP  - 9
4099  - http://auf.isa-arbor.com/content/17/9/242.short
4100  - http://auf.isa-arbor.com/content/17/9/242.full
AB  - After two years, no detrimental effects were found from application of 0.45 m (18 in) of wood chip mulch over soil in which the roots of trees were growing. Soil temperature, moisture and oxygen diffusion rate (ODR) were similar to soil without mulch. Root density in mulched soil was not different from unmulched soil; additional roots had proliferated into the mulch.