Based on the investigation of herbasa of different positions and aspects of slope in the Dafanjiagou and Guaigou of Zhifanggou watershed on the Loess Plateau,the indices of coverage,above-ground biomass and species diversity were analyzed.The results showed that the number of species reach to twenty in the shady slope,thirty percent more than that of sunny slope.The biomass and coverage of herbosa is decreasing from upper slope to the lower slope both on the sunny and shady slope.The shrubs appears in the b...
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