Markov properties transition probability and forecasting for generalized Brownian Sheet;

Research of transition probability computation method for grid workflow;

The relationship between the meteorological factors and the drought and flood disasters has been established,and three methods for forecasting the trends of floods and droughts,which are the transition probability,the phase of the sun activities and El Nino,are proposed.

A method to compute transfer probability in the forecast model and to forecast quality of forecast model are discussed.

The random distribution of Pinus yunnanensis stand system in the spacetime conforms to the description of‘the symmetry of probability’,while the decrease progressively in the number of trees and the increase progressively in the volume of stand conform to the description of‘the non symmetry transfer probability’.

The succession of broad-leaved forest by decreasing tree number and increasing storage was in accordance with the characteristics of transfer probability.