上海市浦东公路绿地土壤肥力质量评价

采集了上海市浦东新区主要公路绿地0～30 cm及>30 cm土壤,测定分析了土壤质地、容重、通气孔隙度、阳离子交换量(CEC)、pH、电导率(EC)、有机质、碱解氮、有效磷、速效钾等理化性质。结果表明:上海市公路绿地土壤以粉砂质粘壤土和粉砂壤土为主;土壤容重大,通气性差;土壤pH高,属于碱性或强碱性土壤;有机质、阳离子交换量较低,土壤EC值大小适中;速效养分中,碱解氮和有效磷含量属中等偏下水平,速效钾含量较高。根据上海市浦东新区公路绿地土壤质量状况,提出了加强上海市公路绿地土壤科学管理的措施和建议。

Soil Fertility Quality Assessment of Road Green Space in Pudong Area, Shanghai

Soil samples with 0~30 cm and >30 cm depths of main road green spaces in Pudong Area,Shanghai were collected,and soil texture,bulk density,porosity,CEC,pH,EC,organic matter,hydrolysable nitrogen,available phosphorus,available potassium were studied in this paper.The result indicated that soil texture was dominated by silty clay loam and silty loam.The soils tend to be high in bulk density,poor in aeration,moderate in EC value and generally low in CEC and organic matter.The pH value of soils in road green space is very high,and falls into alkaline or high alkaline.Available nitrogen and phosphorus were under medium,available potassium was high.According to soil quality situation of road green space in Shanghai City,some measures and suggestions were put forward for soil scientific management.