论文部分内容阅读
采用野外调查与室内分析相结合的方式,对郑州市绿博园(枫湖区、展园区、湿地区、背景森林区、绿色生活体验区、休闲娱乐区6个功能区)土壤质量进行综合评价。结果表明,郑州市绿博园土壤,0~20 cm土层土壤容重、水解性氮、速效磷、速效钾、有机质和pH平均值分别为1.28 g·cm-3、28.45 mg·kg-1、3.41 mg·kg-1、162.23 mg·kg-1、8.22 g·kg-1、7.7;20~40 cm土层土壤容重、水解性氮、速效磷、速效钾、有机质和pH平均值分别为1.24 g·cm-3、21.26 mg·kg-1、2.07mg·kg-1、138.84 mg·kg-1、6.71 g·kg-1、7.5。0~20 cm土层土壤肥力除了休闲娱乐区处于较差水平外(P<1.0),其他功能区土壤肥力属于中等水平(1.0≤P<1.5);20~40 cm土层各个功能区土壤肥力均处于较差水平(P<1.0)。
The soil quality of Zhengzhou Green Expo Garden (Fenghu District, Zhanyuan Park, wetland area, background forest area, green living experience area and recreation area) was comprehensively evaluated by means of field investigation and indoor analysis. The results showed that soil bulk density, hydrolyzable nitrogen, available phosphorus, available potassium, organic matter and pH in 0 ~ 20 cm soil layer of Zhengzhou Green Garden were 1.28 g · cm-3 and 28.45 mg · kg-1, 3.41 mg · kg-1, 162.23 mg · kg-1,8.22 g · kg-1,7.7. The average soil bulk density, hydrolyzable nitrogen, available phosphorus, available potassium, organic matter and pH in 20-40 cm soil layer were 1.24 g · cm -3, 21.26 mg · kg -1, 2.07 mg · kg -1, 138.84 mg · kg -1, 6.71 g · kg -1, 7.5.0 ~ 20 cm soil fertility except for recreational areas (P <1.0). The soil fertility of other functional areas belonged to medium level (1.0≤P <1.5). The soil fertility of each functional zone in 20 ~ 40 cm soil layer was at a poor level (P <1.0).