Development of a surface modeling method for mapping soil properties
文献类型：SCI/SSCI论文
| 作者 | Shi W. J. ; Liu J. Y. ; Du Z. P. ; Yue T. X. |
| 发表日期 | 2012 |
| 关键词 | high accuracy surface modeling (HASM) spatial interpolation accuracy geostatistics soil properties red soil hilly region in South China spatial prediction dem construction high-accuracy information |
| 英文摘要 | High accuracy surface modeling (HASM) is a method which can be applied to soil property interpolation. In this paper, we present a method of HASM combined geographic information for soil property interpolation (HASM-SP) to improve the accuracy. Based on soil types, land use types and parent rocks, HASM-SP was applied to interpolate soil available P, Li, pH, alkali-hydrolyzable N, total K and Cr in a typical red soil hilly region. To evaluate the performance of HASM-SP, we compared its performance with that of ordinary kriging (OK), ordinary kriging combined geographic information (OK-Geo) and stratified kriging (SK). The results showed that the methods combined with geographic information including HASM-SP and OK-Geo obtained a lower estimation bias. HASM-SP also showed less MAEs and RMSEs when it was compared with the other three methods (OK-Geo, OK and SK). Much more details were presented in the HASM-SP maps for soil properties due to the combination of different types of geographic information which gave abrupt boundary for the spatial variation of soil properties. Therefore, HASM-SP can not only reduce prediction errors but also can be accordant with the distribution of geographic information, which make the spatial simulation of soil property more reasonable. HASM-SP has not only enriched the theory of high accuracy surface modeling of soil property, but also provided a scientific method for the application in resource management and environment planning. |
| 出处 | Journal of Geographical Sciences |
| 卷 | 22 |
| 期 | 4 |
| 页 | 752-760 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1009-637X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/26804]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Shi W. J.,Liu J. Y.,Du Z. P.,et al. Development of a surface modeling method for mapping soil properties. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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