Spatial Variability of Nutrient Properties in Soil of Jilin Middle Plain

摘要：

　　Spatial distribution of soil middle-elements and microelements in the middle plain of Jilin province were investigated using geostatistics and geographic information system (GIS)techniques.With various processing methods,including logarithmic transformation,excluding outliers and Box-Cox transformation,the available Ca,Mg,B,Cu,and Zn contents were evaluated with normal distribution.The result shows that Box-Cox transformation is applied in order to achieve normality in the data sets of available Ca,Mg,Cu,and Zn while excluding outliers were employed in the data set of available B to dampen the effect of outliers.Geostatistical analyses were carried out,including calculation of experimental variograms and model fitting,and then the distribution patterns of these soil nutrients elements were plotted.Semivariogram analysis showed that these soil nutrient elements were moderately spatially dependent in a given range.

关键词： Soil properties Spatial variability Geostatistics GIS Northeast China

作者: LI Zhibin CHEN Youqi YAO Yanmin SHI Shuqin

作者单位: Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,B Tianjin Polytechnic University,Tianjin 30087,P.R.China

会议类型: 国际会议

会议名称: Woekshop on Agricultural Land Use and its Effect in APEC Member Economies(APEC地区农业土地利用及其影响国际研讨会)

会议地点: 北京

会议语种:英文

页码: 89-99

在线出版日期: 2009-10-19（万方平台首次上网日期，不代表论文的发表时间）