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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.
Based on the theories of landscape ecology, the meanings of coarsescale pattern of plant diversity conservation (including point/line/face) were summarized. A finescale pattern of plant diversity conservation combined with point/line/face was suggested and the meanings were clearly described. Then the point/line/face theory was applied to the urban plant diversity conservation program of Xianning city, Hubei, China; the short and long term conservation projects were set and how to combine different levels (including point/line/face) of conservation projects were analyzed. The research can provide guidance for urban plant diversity conservation in other cities.