The Effect of Timber Management on Stream Water Quality 



Table C-1. Wilcoxon's signed-rank comparison of mean total suspended solids (TSS), 



three forms of nitrogen (NH3, NO2/3, and total persulfate nitrogen — TPN), 



and two forms of phosphorus (soluble reactive phosphorus — SRP and total 



phosphorus — TP) between no to low activity watershed sites paired to moderate to high 



activity watershed sites. 



Level of Significance 



*** 



ns 

 ns 



ns 



ns = not significant 



* = significant (p < 0.10) 



** = highly significant (p < 0.05 



*** = very highly significant (p < 0.01) 



Flathead Basin Cooperative Program Final Report 



Page 45 



