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| 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 | |
| 引用本文： | 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. |
| 作者姓名： | 郭熙 黄俊 谢文 陶丹丹 鲁敏 赵小敏 |
| 作者单位： | 1. 江西农业大学,土地科学研究所,江西,南昌,330045 2. 江西省土地开发整理中心,江西,南昌,330002 3. 南昌师范高等专科学校,江西,南昌,330029 |
| 基金项目： | 中国科学院知识创新工程重大项目 |
| 摘 要： | 以江西省渝水区水北镇为研究区,利用823个采样点的耕地土壤养分数据,分析区内耕地土壤养分含量与海拔、坡度的相关性,采用协同克里格插值方法,结合海拔、坡度进行插值,并把经交叉检验后的结果与逆距离权重法、普通克里格法的结果进行比较.结果表明,结合海拔、坡度进行插值后,精度有明显提高.插值精度排序为协同克里格法>普通克里格法... |
| 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 |
The Best Interpolation to Evaluate Soil Nutrient in the Mountainous Farmland——A Case Study of Shuibei Town, Yushui Country,Jiangxi Province |
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| GUO Xi,HUANG Jun,XIE Wen,TAO Dan-dan,LU Min,ZHAO Xiao-min.The Best Interpolation to Evaluate Soil Nutrient in the Mountainous Farmland——A Case Study of Shuibei Town, Yushui Country,Jiangxi Province[J].Journal of Henan Agricultural Sciences,2011,40(2):76-80. | |
| Authors: | GUO Xi HUANG Jun XIE Wen TAO Dan-dan LU Min ZHAO Xiao-min |
| Institution: | 1.Research Institute of Land Science,Jiangxi Agricultural University,Nanchang 330045,China;2.Nanchang Teachers College,Nanchang 330029,China;3.Jiangxi Land Development ReorganizationCenter,Nanchang 330002,China) |
| 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. |
| Keywords: | Soil nutrient Interpolation method Inverse distance weight Ordinary kriging Co-kriging |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |