澄城县小麦地土壤全氮含量空间分布的ArcGIS模拟  

Distribution simulation of total nitrogen at wheat field in Chengcheng County based on ArcGIS

作　　者：李庚飞 韩晨[3,2] 王婷[3] 赵亚兰[3] 

机构地区：[1]广西交通科学研究院,广西南宁530007 [2]陕西省多河流湿地生态环境重点实验室,陕西渭南714000 [3]渭南师范学院,陕西渭南714000

出　　处：《甘肃农业大学学报》2014年第4期154-157,共4页Journal of Gansu Agricultural University

基　　金：陕西省多河流湿地生态环境重点实验室开放基金"渭河湿地生态修复中湿生植物对Cd污染的净化研究"(SXSD1403);陕西省教育厅项目"基于NDVI的黄渭洛交汇区域湿地动态监测研究"(12JK0485)

摘　　要：采用试验分析与地统计学方法对陕西省澄城县91个样区小麦土壤全氮含量进行了空间结构分析.结果表明:样点原始全氮值不符合正态分布,经Cox-box变换后符合正态分布;普通克里格插值法半变异函数符合圆型模型,函数块金值为3.79×10-3,偏基台值为4.15×10-3,变程为4 856m;澄城县调查样区96.7%的小麦地土壤全氮含量处于不同的缺乏状态.To explore the distribution of soil total nitrogen in the spatial of Chengcheng County and to devise reasonable fertilization scheme,the author investigated total nitrogen structure of wheat soil in space for 9 1 sample region chose in Chengcheng County of Shanxi Province,with applying the experimental anal-ysis and statistical methods.The results showed that the distribution to original total nitrogen value was not the normal distribution in the sample area,but it was norma by Cox-box transform;Half variant func-tion was fit for the circular model,the Nugget was 3.79×215;10-3,the Partial Sill was 4.15×215;10-3,and the range was 4 856 m;96.7% wheat soil among the county-wide surveyed sample region were of lack in total nitrogen content.

关 键 词：土壤 全氮 地统计学 空间分布 

分 类 号：S153.61[农业科学—土壤学]