JSM 2004 - Toronto

Abstract #301998

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Activity Number: 314
Type: Contributed
Date/Time: Wednesday, August 11, 2004 : 9:00 AM to 10:50 AM
Sponsor: Section on Statistics and the Environment
Abstract - #301998
Title: Spatial Interpolation of Soil Properties by Incorporating Topographic Attributes
Author(s): Xuewen Huang*+ and Alexandra Kravchenko
Companies: Michigan State University and Michigan State University
Address: Plant and Soil Science Bldg 175C , East Lansing, MI , MI, 48824 ,
Keywords: multivariate geostatistics ; kriging ; spatial prediction ; soil properties ; DEM
Abstract:

Topography is a major factor of soil formation and soil properties are related to landscape positions. Precision farming requires detailed soil property maps for successful site-specific management. Because measurements of soil properties are expensive and time-consuming, lack of soil observations limits potential benefits of precision farming. In contrast, field elevation data are easy to obtain. This paper will compare multivariate geostatistical methods for incorporating topographic attributes into spatial prediction of soil properties. The techniques will be illustrated using 33 soil sample sites and 5 x 10 m elevation measurements in a 50 hectare field. The analysis procedures will involve integration between statistical methods of data analysis and GIS.

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