DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Quantifying the Impacts of Environmental Factors on Vegetation Dynamics over Climatic and Management Gradients of Central Asia

Dubovyk, Olena and Landmann, Tobias and Dietz, Andreas and Menz, Gunter (2016) Quantifying the Impacts of Environmental Factors on Vegetation Dynamics over Climatic and Management Gradients of Central Asia. Remote Sensing, 8 (600), pp. 1-16. Multidisciplinary Digital Publishing Institute (MDPI). doi: doi:10.3390/rs8070600. ISSN 2072-4292.

[img] PDF

Official URL: http://www.mdpi.com/2072-4292/8/7/600


Currently there is a lack of quantitative information regarding the driving factors of vegetation dynamics in post-Soviet Central Asia. Insufficient knowledge also exists concerning vegetation variability across sub-humid to arid climatic gradients as well as vegetation response to different land uses, from natural rangelands to intensively irrigated croplands. In this study, we analyzed the environmental drivers of vegetation dynamics in five Central Asian countries by coupling key vegetation parameter “overall greenness” derived from Moderate Resolution Imaging Spectroradiometer (MODIS) Normalized Difference Vegetation Index (NDVI time series data, with its possible factors across various management and climatic gradients. We developed nine generalized least-squares random effect (GLS-RE) models to analyze the relative impact of environmental factors on vegetation dynamics. The obtained results quantitatively indicated the extensive control of climatic factors on managed and unmanaged vegetation cover across Central Asia. The most diverse vegetation dynamics response to climatic variables was observed for “intensively managed irrigated croplands”. Almost no differences in response to these variables were detected for managed non-irrigated vegetation and unmanaged (natural) vegetation across all countries. Natural vegetation and rainfed non-irrigated crop dynamics were principally associated with temperature and precipitation parameters. Variables related to temperature had the greatest relative effect on irrigated croplands and on vegetation cover within the mountainous zone. Further research should focus on incorporating the socio-economic factors discussed here in a similar analysis

Item URL in elib:https://elib.dlr.de/107002/
Document Type:Article
Title:Quantifying the Impacts of Environmental Factors on Vegetation Dynamics over Climatic and Management Gradients of Central Asia
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Dubovyk, OlenaCenter for Remote Sensing of Land Surfaces (ZFL), University of Bonn,UNSPECIFIED
Landmann, Tobiastlandmann (at) icipe.orgUNSPECIFIED
Dietz, AndreasAndreas.Dietz (at) dlr.deUNSPECIFIED
Menz, Guntergmenz (at) uni-bonn.deUNSPECIFIED
Date:15 July 2016
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :doi:10.3390/rs8070600
Page Range:pp. 1-16
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:land surface dynamics; time-series data; vegetation patterns; Moderate Resolution Imaging Spectroradiometer (MODIS); linear regression modeling
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Fernerkundung der Landoberfläche (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center
Deposited By: Dietz, Andreas
Deposited On:14 Nov 2016 12:50
Last Modified:14 Dec 2019 04:26

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.