Remote sensing and transect-based retrieval of spatial soil and terrain (SOTER) information in semi-arid Niger

被引：8

作者：

Graef, F ^{[1
]}

van Duivenbooden, N

Stahr, K

机构：

[1] Univ Hohenheim, Inst Soil Sci & Land Evaluat 310, D-70593 Stuttgart, Germany

[2] Int Crops Res Inst Semi Arid Trop, Sahelian Ctr, Niamey, Niger

来源：

JOURNAL OF ARID ENVIRONMENTS | 1998年 / 39卷 / 04期

关键词：

SOTER; soil transects; remote sensing; Niger; GIS; degradation; multiple scales;

D O I：

10.1006/jare.1998.0423

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

A methodology for retrieval and mapping of spatial soil and. terrain data based on the SOTER approach has been developed for semi-ai:id Niger. Remote sensing technics and detailed ground transect investigations are used, and the collected data are integrated into a SOTER database and a Geographic Information System. Transect selection, their realization and the related problems with transect-based calculations are discussed. The method permits estimations of soil type coverages, present land use and soil degradation at different scale levels. The significant dynamics of soil redistribution are pointed out and attributed to present and past erosion events. (C) 1998 Academic Press.

引用

页码：631 / 644

页数：14

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