Upper Ground

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈəpər graʊnd/

The tritium concentration in rice root was lower than those in upper ground portion.
Within a life period of B. pilosa, content of heavy metal in upper ground parts and roots gradually increases with the growing of plants, which consistent with biomass.
The content of N, P and K of the upper ground part was higher than that of the underground part.
The results shown that the differences among different provenance and family in seedling heigth, biomass of upper ground and underground, stem size, the number of branches, shoot height, the fresh and dry weight are significant.
The problems of environmental protection and energy reservation is more and more serious, while the increasing scarcity of architectural area at upper ground makes the transverse development ratio of urban usable space less and less.

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