农田养分空间变异研究——以江西省泰和县苏溪镇为例

A Study on Spatial Variability of Red SoilNutrient Status in Hill Field

以江西省泰和县苏溪镇苏溪村120hm2为研究区域,运用地统计学和GIS手段,对丘陵红壤地区农田土壤中的速效磷(P)、钾(K)、铜(Cu)、铁(Fe)、锰(Mn)、锌(Zn)、速效硼(B)和硫(S)、铵态氮(N)、速效钙(Ca)、镁(Mg)进行了变异系数分析、半方差分析、分数维分析并以K为例,利用插值模型做出了较合理的土壤养分空间分布图。

Variability coefficient analysis, semi-variance analysis and fractal analysis were made by geostatistics and GIS on the red soil nutrients of Olsen-P, K, Fe, Mn, Zn, Olsen-B, S, NH_4-N, Olsen-Ca, and Mg in the study area covering Suxi Village, Suxi Town, Taihe County, Jiangxi Province. Taking K as an example, a relatively reasonable spatial distribution map of soil nutrients was made by the inter-value model.