Notice of RetractionDynamic analysis of forest biomass in Changbai Mountain

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.

Spectral information of remote sensing images have a good comprehensive and current situation, the research of using remote sensing and GIS information technology for forest biomass estimate and carbon process study has become a new means. By the analysis of remote sensing data from 1970s to 1990s in Changbai Mountain combined with GIS technology, we systematically studied the forest biomass changing trend, from number changes, time changes, multi-angel, multi-level reflection the changing trend of forest biomass in this area from 1970s to 1990s, it revealed the major environmental problems. The results show that the average biomass of middle and northern Changbai Mountain in 1970s is between 120t/hm2-140t/hm2, the average biomass of southern and western parts is between 60t/hm2-80t/hm2. The over-harvesting of forest in early 1980s in this region led to biomass decreased rapidly, the average biomass in this region is between 40t/hm2-80t/hm2, from 1970s to 1980s the biomass per hectare in middle and northeast is reduced more than 20t/hm2, while south-west increased about 20t/hm2. With the implementation of natural forest protection and other projects in 1990s the average biomass began to increase, compared with 1980s the biomass increased about 10t/hm2-30t/hm2 except southwest part which biomass reduced about 10t/hm2.