The meteorological factors inside two different ages of Eucalyptus exserta shelter forests and in open area were contrasted at fixed positions in Shankou Forest Farm in the north torrid zone,Guangxi.

et Champ,as the shief selected tree species for fire prevention forest belt along tropical north border of Guangdong,are carefully chosen from the six tree species,by plantation comparative experiments of six fire prevention tree species.

Studies on ecological models of limestone hill in north subtropical zone.;

The vertical variations of soil compositions, properties, types according to genetic classification and taxonomic classification, and the north boundary of subtropical zone on the southern slope of Funiu Mountain were discussed in this paper based on soil survey in field and soil physical and chemical analysis in laboratory.