摘要
以上海某搬迁地土壤为研究对象,通过室内模拟实验和田间实证实验相结合的方式,研究不同土壤调理剂对搬迁地土壤pH值的影响,并分析评价了施用土壤调理剂的经济成本。结果表明:添加硫酸亚铁、硫酸铵、磷酸二氢钾等土壤调理剂能显著降低搬迁地土壤pH值,且混施较撒施更有助于降低土壤pH值;若以改良1 m^(3)土壤为例,混施4 kg/m^(3)硫酸亚铁对土壤pH值降低效果较好。研究可为城市搬迁地园林绿化土壤改良提供技术支撑和指导。
Taking the soil of a relocation site in Shanghai as the research object,the effects of different soil conditioners on soil pH of the relocation site were studied through the combination of indoor simulation experiment and field empirical experiment,and the economic cost of soil conditioners was analyzed and evaluated.The results showed that the addition of soil conditioners such as ferrous sulfate,ammonium sulfate and potassium dihydrogen phosphate could reduce the soil pH in the relocation area,and the mixed application was more helpful to reduce the soil pH than the scattered application.Taking improved 1 m^(3) soil as an example,mixed application of 4 kg/m^(3) ferrous sulfate has a better effect on soil pH reduction.This study can provide technical support and guidance for landscape soil improvement in urban relocation sites.
作者
徐冰
张峰
梁晶
XU Bing;ZHANG Feng;LIANG Jing
出处
《园林》
2021年第5期94-99,共6页
Landscape Architecture Academic Journal
基金
上海市绿化和市容管理局科技攻关项目“城市污染土壤生态修复关键技术研发与集成应用”(编号:G190202)。
