Development of a surface modeling method for mapping soil properties

Auteur(s) et Affiliation(s)

SHI, W.

Inst. of Geographic Sciences and Natural Resources Research, Beijing, Chine

LIU, J.

Inst. of Geographic Sciences and Natural Resources Research, Beijing, Chine

DU, Z.

Inst. of Geographic Sciences and Natural Resources Research, Beijing, Chine

YUE, T.

Inst. of Geographic Sciences and Natural Resources Research, Beijing, Chine

Description :
The AA. present a method of high accuracy surface modeling (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, they compared its performance with that of ordinary kriging (OK), ordinary kriging combined geographic information (OK-Geo) and stratified kriging (SK). The results show that 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.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2012, vol. 22, n°. 4, p. 752-760, nombre de pages : 9, Références bibliographiques : 22 ref.

Date :
2012

Editeur :
Pays édition : Chine

Langue :
Anglais