4Behera N, Sahani U. Soil microbial biomass and activity in response to Eucalyptus plantation and natural regeneration on tropical soil [ J ]. Forest Ecology and Management, 2003, (174) .1-11.
5Lemenith M, Olsson M, Karltun E. Comparison of soil attributes under Cupressus lusitanica and Eucalyptus saligna established on abandoned farmlands with continuously cropped farmland sand natural forest in Ethiopia[J]. Forest Ecology and Management, 2004, ( 195 ) : 57-67.
