the Mae Sa Mai area was taken on November 6th 2006, the image for Huai Bong
was taken on February 22nd 2007 and the image for Bor Krai was taken on
December 1st 2006. The LANDSAT 7 image consists of 8 different bands, while
the SPOT 5 image consists of 4 different bands. During the field trips, a hand-held
Garmin GPS III was used to obtain coordinates of the observation points. The
evaluation of the field and laboratory data was carried out with the following
software: MS Access 2003, ArcView 3.3 and ArcGIS 9.1.
Soil data base: Point data containing soil information were transferred into a
database (Soil Database Thailand, see excerpt in Table 2.2). The database structure
followed mainly the SOTER manual (FAO 1995), including site descriptions of
investigation points in the profile table. This table was linked with the horizon table,
Fig. 2.6 Soil map of north-western Thailand classifying most of the mountainous areas as “slope
complex” (Vijarnsorn and Eswaran 2002) and showing the state-of-the-art situation prior to this
study
50
K. Stahr et al.
was taken on February 22nd 2007 and the image for Bor Krai was taken on
December 1st 2006. The LANDSAT 7 image consists of 8 different bands, while
the SPOT 5 image consists of 4 different bands. During the field trips, a hand-held
Garmin GPS III was used to obtain coordinates of the observation points. The
evaluation of the field and laboratory data was carried out with the following
software: MS Access 2003, ArcView 3.3 and ArcGIS 9.1.
Soil data base: Point data containing soil information were transferred into a
database (Soil Database Thailand, see excerpt in Table 2.2). The database structure
followed mainly the SOTER manual (FAO 1995), including site descriptions of
investigation points in the profile table. This table was linked with the horizon table,
Fig. 2.6 Soil map of north-western Thailand classifying most of the mountainous areas as “slope
complex” (Vijarnsorn and Eswaran 2002) and showing the state-of-the-art situation prior to this
study
50
K. Stahr et al.