城市园林绿化用地土壤肥力诊断与综合评价rn——以广州市长虹苗圃为例

摘要

以广州市长虹苗圃为例，在实地调查与采样分析的基础上，首先对土壤肥力各单项指标进行诊断分析，然后采用修正的内梅罗指数对各地块进行土壤综合肥力评价。结果表明长虹苗圃土壤pH值偏低，有机质以及其它主要养分含量缺乏，各地块综合肥力系数大都属于贫瘠水平，其中南区、北区综合肥力明显低于东区。%With a case of Changhong nursery of Guangzhou city, urban garden soil fertility was diagnosed and evaluated with modified Nemoro Index. Selected soil attributes included pH, organic matter, total nitrogen, available nitrogen, phosphorus and potassium, density and texture. The result indicated the level of Changhong nursery soil fertility was very low, south plot and north plot were more infertile than east plot.