Mean nighttime (1900 to 0600 HR) long wave radiation over landscape tree trimmings (LTT), ponderosa pine residue (PPR), decomposing granite (DG), or bare soil without a mulch cover (control) during August 2004 and July 2005.
↵yMean values within the same column followed by the same letter were not significantly different using Tukey’s honestly significant difference test (α = 0.05).