徐州市城区绿地土壤的理化特性

以徐州市不同功能区的绿地土壤为研究对象,通过对徐州市三环路内4个城区土壤的理化性质与养分状况等指标进行分析,并与该地区自然土壤进行了对比,研究其变化的趋势。结果表明:该城区绿地土壤的容重较大,孔隙度和田间持水量少,有机质缺乏,养分含量不均,pH值呈上升趋势。另外从绿地类型上加以比较、分析,其各样区土壤理化性质优劣顺序为:生产绿地〉公园广场绿地〉居民小区绿地〉道路交通绿地。

Physicochemistry Properties of Greenbelt Soils in Xuzhou

The subject of the paper is the greenbelt soils in the different functional areas in Xuzhou.The variational tendencies of greenbelt soils in 4 urban areas within the third rings were studied by analyzing the physicochemistry property and the nutrient status of the soil in these functional areas and comparing with the natural cinnamon soil in these functional areas.The results were as follows:The soil bulk density was higher,total porosity and field capacity of preserving water were small,organic materials were scant,the content of nutrients distributed uniformly,and the trend of pH value was upward.The order of excellence of physicochemistry properties in every area was productive plantation area>park square greenbelt>residential area greenbelt>road traffic greenbelt.