Vegetation succession of arable old land after being abandoned in Loess Plateau hilly region & ascertaining dominant native herbages in the process, analyzing their chemical nutrient composition
A 2-year experiment was carried out in the Loess Plateau to better understand vegetation succession of arable old land after being abandoned in Loess hilly region. Based on 2 kinds of ways, one was quantitative classification using system clustering, the other was abandoned year. Again with the overall understood of 25 sample plots research, the result showed that: from 1 to 6 years, annual weeds community →annual weeds + tuft grass community →annual weeds + perennial herbage community or rhizome grass →fro...
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