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在艾比湖湿地自然保护区东大桥和鸭子湾附近选取38个样地,对17个植物群落内的21种植物进行了土壤酶、有机质、盐分、pH值等的测量。结果表明:与湿润地区相比,干旱区的土壤酶含量很低,在土壤剖面上土壤酶活性随深度的增加而降低。聚类分析中,土壤酶是影响聚类分析最重要的因子,分到同一类别中的植物在酶和土壤理化性质之间有密切的关系,适应环境胁迫的机理极其相似。聚类分析可作为植物分类的方法,和经典的植物分类方法结合,为植物分类提供更合理的依据。相关分析表明,干旱区土壤有机质作为土壤酶底物的重要补给源与土壤酶活性呈极显著相关。
Thirty eight plots were selected near the Dongdaqiao and Duck Bay of the Aibi Wetland Nature Reserve to measure the soil enzymes, organic matter, salinity and pH of 21 species in 17 plant communities. The results showed that compared with wetland, the soil enzyme content in the arid area was very low, and the soil enzyme activity decreased with the depth increasing in the soil profile. In the cluster analysis, soil enzyme is the most important factor that affects cluster analysis. The plants classified into the same category have close relationship between the enzyme and soil physical and chemical properties, and the mechanism of adaptation to environmental stress is very similar. Clustering analysis can be used as a method of plant classification, combined with classical plant classification methods, to provide a more reasonable basis for plant classification. Correlation analysis showed that soil organic matter as an important supply source of soil enzyme substrate was significantly correlated with soil enzyme activity in arid area.