Show simple item record

dc.contributor.authorWiesmair, Martin
dc.contributor.authorFeilhauer, Hannes
dc.contributor.authorMagiera, Anja
dc.contributor.authorOtte, Annette
dc.contributor.authorWaldhardt, Rainer
dc.date.accessioned2022-11-18T09:51:25Z
dc.date.available2016-12-15T08:06:56Z
dc.date.available2022-11-18T09:51:25Z
dc.date.issued2016
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:hebis:26-opus-123928
dc.identifier.urihttps://jlupub.ub.uni-giessen.de//handle/jlupub/9232
dc.identifier.urihttp://dx.doi.org/10.22029/jlupub-8620
dc.description.abstractIn the Georgian Caucasus, unregulated grazing has damaged grassland vegetation cover and caused erosion. Methods for monitoring and control of affected territories are urgently needed. Focusing on the high-montane and subalpine grasslands of the upper Aragvi Valley, we sampled grassland for soil, rock, and vegetation cover to test the applicability of a site-specific remote-sensing approach to observing grassland degradation. We used random-forest regression to separately estimate vegetation cover from 2 vegetation indices, the Normalized Difference Vegetation Index (NDVI) and the Modified Soil Adjusted Vegetation Index (MSAVI2), derived from multispectral WorldView-2 data (1.8 m). The good model fit of R2 = 0.79 indicates the great potential of a remote-sensing approach for the observation of grassland cover. We used the modeled relationship to produce a vegetation cover map, which showed large areas of grassland degradation.en
dc.language.isoende_DE
dc.rightsNamensnennung 3.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/*
dc.subjectgrassland degradationen
dc.subjecterosionen
dc.subjectovergrazingen
dc.subjectNDVIen
dc.subjectMSAVI2en
dc.subject.ddcddc:630de_DE
dc.titleEstimating vegetation cover from high-resolution satellite data to assess grassland degradation in the Georgian Caucasusen
dc.typearticlede_DE
local.affiliationZentrende_DE
local.opus.id12392
local.opus.instituteInstitut für Landschaftsökologie und Ressourcenmanagementde_DE
local.opus.fachgebietZentrum für internationale Entwicklungs- und Umweltforschungde_DE
local.source.urihttps://doi.org/10.1659/mrd-journal-d-15-00064.1
local.source.freetextMountain Research and Development 36(1):56-65de_DE


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record