In this paper, the influence factors of the process of the land sandifica-
tion in the given area are discussed with Markov Analysis and Graph Theo-
ry, in accordance with the principles of Systems Ecology. A mechanism of
self-protection from wind erosion is revealed about the natrual soil. A gra-
ph theory model is proposed to analyse the cause of sandification. It is pr-
oved that the sandification in the studied area is a process caused by human
being...
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