Constructed wetlands are sometimes used to mitigate the loss of wetlands destroyed through development and road building. In the past, these constructed wetlands have not provided the ecosystem services provided by natural wetlands, due to issues such as low organic carbon and soil compaction. Organic matter amendments may help constructed wetlands achieve the functions of natural wetlands more rapidly. This study will be conducted to describe the effects of compost loading rates 14 years after application on root biomass, litter accumulation, and soil carbon. The experiment site is a loamy wetland in the Coastal Plain of Virginia, first constructed in 1996. The wetland was originally created by excavating about 45-60 cm of surface, which left a silty lower E or clayey Bt or Btg horizon exposed at the surface over most of the site. Five different rates of yard waste compost were applied 2002 (treatment 1 = 0 Mg ha-1, treatment 2 = 56 Mg ha-1, treatment 3 = 112 Mg ha-1, treatment 4 = 224 Mg ha-1, and treatment 5 = 336 Mg ha-1 on a dry weight basis). In the summer of 2016, root samples to 30 cm and soil samples for carbon analysis will be taken. Litter will be taken in late summer. Regression analyses will be used to determine lasting treatment effect 14 years after application.