关键词: 生态恢复, 土壤微生物多样性, BIOLOG鉴定系统 , 细菌

Abstract: The cultivable heterotrophic bacterial diversities under different vegetations were characterized by the traditional method from number, category and configuration aspects. Plate counts and some dominant bacterials were identified by BIOLOG microplate. The results show that the microbes under different vegetations have dissimilar diversities. The amounts and species of microbes changein different vegetation soil. In early spring, the variety of quantities and species of cultivable heterotrophic bacterial communities under different vegetation soil are not of prominent linear correlation, while becoming more and more prominent,with the climate changing. Between the cultivable microorganism and the soil microbial biomass significant linear correlation does not exist, while the CFU and species of preponderant microbes under different vegetations are of good relevance in the category of 95% credible interval (P<0.05). The percentages under different vegetations are different with different shapes and communities structures of the preponderant bacterias, even if in different time under the same vegetation. For some preponderant bacteria identification, Alcaligenes faecalis is found in farmland, Rhizobium radiobacter is found under Robinia pseudoacacia forest, and the remaining ones are identified to genus.

Key words: BIOLOG , bacteria, soil microbial diversity, ecorestoration