山东农业科学2012，Vol.44Issue(3)：58-62,67,6.
基于时空特征的有效磷与速效钾变异分析——以陕西省陈仓区为例
Variation Analysis of Available Phosphorus and Available Potassium Based on Temporal and Spatial Features——Taking Chencang District of Shanxi Province for Example
摘要
Abstract
In order to improve the field management and increase the water and fertilizer use efficiency, the ArcGIS geostatistical analysis model and three - dimensional analysis model were adopted to study the distribution and variation trend of available phosphorus and available potassium in soil of Chencang District between 1980 and 2003. The results showed that, the content of available phosphorus and available potassium showed rising trend in temporal variability, which mainly related with human factors. On spatial variability, the third grade of available phosphorus and the second grade of available potassium were the main in every elevation. Because of many landforms and climate, the order of the dominate grades in elevation and their area distribution was 1 000 ~ 1 500 m >600 ~ 1 000 m > ( > 1 500 m) > ( <600 m).关键词
有效磷/速效钾/时空特征/ArcGIS/普通克里格/转移矩阵Key words
Available phosphorus/ Available potassium/ Temporal and spatial features/ ArcGIS/ Ordinary Kriging/ Matrix of conversion分类
农业科技引用本文复制引用
舒彦军,张立亭..基于时空特征的有效磷与速效钾变异分析——以陕西省陈仓区为例[J].山东农业科学,2012,44(3):58-62,67,6.基金项目
东华理工大学研究生创新资金项目(DYCA11019)“基于时空特征的土壤养分变异分析研究——以陕西省陈仓区为例”资助. （DYCA11019）
