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以城市绿地微缩景观的上海市植物园为研究对象,在调查典型植物群落土壤物理化学性质、养分的基础上,还分析了其土壤的微生物特性。研究结果表明,对于城市绿地土壤而言,上层土壤有机质、碱解N、速效K、有效P的含量均比下层高,但土壤理化性质和养分与土壤微生物特性(微生物数量、微生物量碳、微生物量氮、酶活性等)之间并不具有较好的相关性。分析其原因,可能一方面与其自肥作用有关,另一方面可能由于管理方式不同所引起的。
Based on the miniature landscape urban greenbelt of Shanghai City, the botanical garden of Shanghai was studied. Based on the investigation of soil physico-chemical properties and nutrients of typical plant communities, the characteristics of soil microbes were also analyzed. The results showed that the contents of soil organic matter, alkali N, available K and available P in the upper soil were higher than those in the lower layer, but the soil physical and chemical properties and soil microbial characteristics (microbial biomass, microbial biomass carbon, microorganism Amount of nitrogen, enzyme activity, etc.) does not have a good correlation between. Analysis of the reasons may be related to its own role on the one hand, on the other hand may be due to different management methods.