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Delineation of Soil Parameters to assess Ecosystem Degradation using Spectral Mixture Analysis

Bayer, Anita and Bachmann, Martin and Müller, Andreas (2011) Delineation of Soil Parameters to assess Ecosystem Degradation using Spectral Mixture Analysis. 34th International Symposium on Remote Sensing of Environment, 10-15 April 2011, Sydney, Australia.

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Official URL: http://www.isprs.org/proceedings/2011/ISRSE-34/211104015Final00586.pdf

Abstract

Land degradation processes in the subtropical Thicket Biome in the Eastern Cape Province, South Africa, are observed and monitored. As a result, a significant loss of soil quality on such sites has been recorded. This study focuses on the determination of fundamental soil parameters like organic carbon, iron, and clay in order to assess ecosystem degradation. The test site in South Africa is surveyed for ground truth and hyperspectral image data are obtained. We take advantage of spectral mixture analysis to approximate the ‘pure’ soil signal from mixing pixel signatures. For a subsequent quantification of soil parameters, spectral feature analysis is linked with multiple linear regression techniques. For organic carbon and iron, calibrations of high accuracy are used for the prediction of image data. The results highly correlate with measured contents. In contrast, the quantification of clay content is still problematic mostly due to the existence of soil structural crusts.

Document Type:Conference or Workshop Item (UNSPECIFIED)
Title:Delineation of Soil Parameters to assess Ecosystem Degradation using Spectral Mixture Analysis
Authors:
AuthorsInstitution or Email of Authors
Bayer, Anitaanita.bayer@dlr.de
Bachmann, Martinmartin.bachmann@dlr.de
Müller, Andreasandreas.mueller@dlr.de
Date:April 2011
Refereed publication:No
In ISI Web of Science:No
Number of Pages:4
Status:Published
Keywords:Land degradation, soil organic carbon, imaging spectroscopy, spectral feature analysis, multiple endmember spectral mixture analysis
Event Title:34th International Symposium on Remote Sensing of Environment
Event Location:Sydney, Australia
Event Type:international Conference
Event Dates:10-15 April 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Fernerkundung der Landoberfläche
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
Deposited By: Anita Daniela Bayer
Deposited On:28 Nov 2012 10:56
Last Modified:12 Dec 2013 21:50

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