7Be, as a tracer for atmosphere transmission, seasonal transfer of surface soils and for particulate mixing, has been applied widely. Its concentration distribu
In recent years, the concentrations of heavy metals in Chinese herb of Ligusticum chuanxong Hort are overranging the standard of national port of green herbs in
The Nyiragongo volcano is located in the Virunga volcanic chain (Western Branch Rift, Eastern African Rift System). On January 17-18, 2002 a NS-oriented fractur
Soil organic matter (SOM) is the important phase for sorption of hydrophobic organic contaminants (HOCs) by soils and sediments. A linear partition model was in
Law of the propagation of errors caused by the inconsistency of the boundary scale similitude in river model experiment is presented in this paper.The fluctuat