季节性冻融期土壤微生物的数量影响因素Meta分析OA北大核心CSTPCD

[Objective]To investigate the factors influencing soil bacterial and fungal populations during the seasonal freeze-thaw period.[Methods]The experimental data of relevant soil seasonal freeze-thaw pe-riods were collected through the databases of China Knowledge Network and Web of Science,and the quality of the extracted literature was evaluated according to the exclusion and inclusion criteria and using the Newcastle-Ottawa Scale(NOS)evaluation criteria,and those with scores≥6 and high quality were included in the study,and RevMan 5.4 was used for Meta-analysis.[Results]The final 42 papers met the inclusion crite-ria,among which,7 were SCI articles and 27 were CSCD articles.The analysis showed that soil water content had the most significant effect on soil bacteria during the seasonal freeze-thaw period;soil pH had the most significant effect on soil fungi,and soil organic matter had the least significant effect on soil bacteria and fun-gi.During the seasonal freeze-thaw period,soil organic nitrogen had the most dominant effect on soil bacteria soil water content had the most dominant effect on soil fungi.[Conclusion]Soil pH and soil water content play a decisive role in soil bacteria and fungi during the seasonal freeze-thaw period.