The Succession of the Vegetation on the loess District Northward to Qinling
Zhu Zhicheng
Since the quanternary occured, the vegetations of this district have
appeared several serious variations. They sheav that the mold and cold asi-
culisilvae and bush-wood meadow, tundra vegetation theropeucedrymion, forest
steppe and dry steppe have occurred simultaneously. All of these variations
are generally belonged to the succession of climatogenic exadynamies. Rece-
ntly, through the occurrence of anthropogenic influences, the north parts
of this district are developing to the deriction of the steppe.
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