Notice of RetractionEffects of configuration types on the litter nutrient storage of protective greenbelts in Karamay City, Xinjiang, China

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

In this paper, nutrients concentrations and storage of floor litter were measured at protective greenbelt in Karamay, China, in sites that contained 14 different combinations of planting configurations and species composition. The results show that the nutrients of the forest floor differ greatly among the configuration types. The nutrient contents (g·kg^-1) of the forest floor ranged from 229.26 to 363.87 for organic C, 5.84 to 15.59 for N, 0.49 to 1.39 for P, 2.55 to 4.19 for K, 25.23 to 38.62 for Ca and 1.48 to 5.42 for Mg. According to the study, we suggest that the mode of the woodlands containing both trees and shrubs that are mixed by rows should be used in the construction of artificial protective forests, especially in windy, arid areas.