河南农业科学2011，Vol.40Issue(2)：76-80,5.
山地丘陵耕地土壤养分最优插值方法研究——以江西省渝水区水北镇为例
The Best Interpolation to Evaluate Soil Nutrient in the Mountainous Farmland -A Case Study of Shuibei Town,Yushui Country,Jiangxi Province
摘要
Abstract
The relationship between soil nutrient content and elevation and slope was evaluated based on the farmland soil nutrient data of 823 sampling sites in Shuibei town, Yushui country,Jiangxi province. The method of co-Kriging was used with elevation and slope considered, and the result of cross-examination were compared with that by inverse distance weight (IDW) and ordinary Kriging. Results revealed that the accuracy of interpolation was obviously improved when elevation and slope were combined. Among the three interpolation methods, co-Kriging was the best one and followed by ordinary Kriging.关键词
土壤养分/空间插值/逆距离权重法/普通克里格法/协同克里格法Key words
Soil nutrient/ Interpolation method/ Inverse distance weight/ Ordinary kriging/ Co-kriging分类
农业科技引用本文复制引用
郭熙,黄俊,谢文,陶丹丹,鲁敏,赵小敏..山地丘陵耕地土壤养分最优插值方法研究——以江西省渝水区水北镇为例[J].河南农业科学,2011,40(2):76-80,5.基金项目
中国科学院知识创新工程重大项目(KSCX1-YW-09) （KSCX1-YW-09）
