武汉市区绿地土壤养分空间变异性分析

采用GIS与地统计学相结合的方法,对武汉市区绿地土壤中pH值、有机质、全氮、速效磷、速效钾的空间分布进行了研究。结果表明,武汉市区绿地大部分土壤为碱性或中性;土壤养分空间变异性较大,在0.46~0.88,有机质的变异系数最大为0.88;各区域养分含量不均等,绿地养分等级处于中等水平。并绘制了武汉市区绿地养分等级分布图。从而为城市绿地土壤养分管理及绿地建设规划提供指导。

Spatial Variability Analysis on Urban Green Space's Soil Nutrients in Wuhan City

In this paper,geostatistics combined with GIS were applied to analyze the spatial vailability of urban green space's soil nutrients;such as pH value,organic matter,total nitrogen,available phosphorus and available potassium in Wuhan City.The result showed that most of the urban green space's soil was alkaline and the spatial variability of soil nutrients was large,all of soil nutrients in the coefficient of variation ranged from 0.46 to 0.88,and the largest variation coefficient of organic matter was 0.88.W...