Notice of RetractionDependences of Soil Physical Properties on Altitudes in Pinus armandii Forest Ecosystem

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.

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This work was focused on soil physical properties between 1722~2162m under Pinus armandii forest in Qinling Moutains, China. The soil physical properties were measured in three depth layers, 0-20cm, 20-50cm and 50-80cm. Results showed soil physical properties varied with altitudes. The Soil density was fluctuated with altitudes, water holding capacity and total porosity was declined with altitudes. The soil properties were also changed with soil depth. Soil density was increased with soil depth, soil water holding capacity and soil porosity were decreased with depth. Soil physical properties were at appropriate values when the altitude between 1734~1842m, it would provide good environment to Pinus armandii growth. This altitude range should be considered as main part to get new plantation and reproduction in Qinling Moutains in the future.