保定市不同绿地土壤动物群落与土壤理化性质的关系

The relationship between soil animals and soil physical and chemical properties in different greenlands of Baoding

对保定市4种绿地类型：苗圃绿地（Nursery Greenland）、道路绿地（Road Greenland）、防护林绿地（Shelterforest Greenland）、公园绿地（Park Greenland）中的土壤动物群落组成和数量进行了调查，并分析了4种绿地的环境要素与土壤动物群落的关系。结果表明：4种绿地类型中的土壤动物个体数表现为苗圃绿地（526头）〉公园绿地（431头）〉道路绿地（326头）〉防护林绿地（179头），但土壤动物类群数相差不大。土壤理化性质对土壤动物的影响不同。土壤动物群落的个体数在一定范围内与土壤含水量的变化呈正相关关系；pH值对土壤动物的分布关系不密切；0～10cm土层和10～15cm土层的土壤动物的数量与有机质都呈正相关关系。

Four categories of primary greenlands （including Nursery Greenland, Road Greenland, Shelter- forest Greenland and Park Greenland） were chosen in Baoding city. The composition and numbers of soil animals communities were investigated, and the relationship between the soil physical and chemical properties and soil animals communities were analyzed. The results are as follows： Among the individual numbers of soil animal, the order is Nursery Greenland （526） 〉 Park Greenland （431） 〉 Road Greenland （326） 〉 Shelter-forest Greenland （179）. The soil physical and chemical properties have different impacts on soil animals. The relativity between soil animal individuals and water content of soil was positive in some scale. The pH value of soil impacted significantly on soil animals＇ distribution, and soil animals tended to enjoy neutral and alkaline soil. The relativity between number of soil animals and nitrogen was absolutely positive in 0 - 10 cm and 10 15 cm soil layer.