The concrete steps of EMD method were introduced briefly.The EMD method was applied to the fluctuation of land quantity in china and the analyses of multiple time scale in driving force since from 1949,and the fluctuated rules of land quantity were revealed.Meanwhile,according to the fluctuation from different time scale which was decomposed,the qualitative forecast of fluctuated tendency on future land quantity in china was analyzed,and the modeling basis was offered for building prediction model of land q...
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