Contents of 13 trace elements in soils. from 36 locations in Tianjin plain area were determined. Values of Morans l of the trace element contents in soils of the area were calculated. The spatial auto
This article inquires into theoretical and practical problems on compilation of an atlas of regional natural disasters. (1) The basic theory of compiling an atlas of regional disasters has been founde
Hainan Island is located in the northern periphery of the tropical world.The environment is suitable for a number of tropical economic crops.The content of soil organic matter under rubber plantation