eprintid: 11542
rev_number: 9
eprint_status: archive
userid: 3170
dir: disk0/00/01/15/42
datestamp: 2020-08-08 11:16:45
lastmod: 2020-08-08 11:16:45
status_changed: 2020-08-08 11:16:45
type: article
metadata_visibility: show
creators_name: Reddy, G P A
creators_name: Kumar, N
creators_name: Sahu, N
creators_name: Srivastava, R
creators_name: Singh, S K
creators_name: Naidu, LG K
creators_name: Chary, G R
creators_name: Biradar, C M
creators_name: Gumma, M K
creators_name: Reddy, B S
creators_name: Kumar, J N
creators_gender: Female
icrisatcreators_name: Gumma, M K
affiliation: ICAR—National Bureau of Soil Survey and Land Use Planning, Amravati Road, Nagpur
affiliation: ICAR—National Bureau of Soil Survey and Land Use Planning,  Regional Centre, Bengaluru
affiliation: ICAR—Central Research Institute for Dryland Agriculture, Santhosh Nagar, Hyderabad
affiliation: International Centre for Agricultural Research in the Dry Areas (ICARDA), Cairo
affiliation: ICRISAT (Patancheru)
affiliation: ICAR—All India Coordinated Research Project for Dryland Agriculture (CRIDA), Anantapuramu
affiliation: Minor Irrigation, Department of Command Area Development, Anantapuramu
country: India
country: Egypt
title: Assessment of spatio-temporal vegetation dynamics in tropical arid ecosystem of India using MODIS time-series vegetation indices
ispublished: pub
subjects: S100
subjects: S21
divisions: CRPS4
full_text_status: public
keywords: SPI, MODIS, NDVI, VCI, VAI, Vegetation stress zones, Tropical arid ecosystem
note: We acknowledge the US Geological Survey (USGS)
for providing the temporal MODIS 250m products (https://earthexplorer.usgs.gov/) through the Earth Explorer Data Gateway. The authors are thankful to all India Coordinated Research Project for Dryland
Agriculture (CRIDA), Anantapuramu and Minor Irrigation, Department of Command Area Development, Anantapuramu, for their support in providing the climatic data for the study area. The support of Shri K.C.Arun Kumar, Young Professional—II in data processing and GIS mapping
is duly acknowledged. We sincerely thank anonymous reviewers whose constructive comments and suggestions greatly improved the manuscript.
abstract: In the present study, we analyzed spatio-temporal vegetation dynamics to identify and delineate the vegetation stress zones in
tropical arid ecosystem of Anantapuramu district, Andhra Pradesh, India, using Normalized Difference Vegetation Index
(NDVI), Vegetation Condition Index (VCI), and Vegetation Anomaly Index (VAI) derived from time-series Moderate
Resolution Imaging Spectroradiometer (MODIS) 16-day products (MOD13Q1) at 250 m spatial resolution for the growing
season (June to September) of 19 years during 2000 to 2018. The 1-month Standardized Precipitation Index (SPI) was computed
for 30 years (1989 to 2018) to quantify the precipitation deficit/surplus regions and assess its influence on vegetation dynamics.
The growing season mean NDVI and VCI were correlated with growing season mean 1-month SPI of dry (2003) and wet (2007)
years to analyze the spatio-temporal vegetation dynamics. The correlation analysis between SPI and NDVI for dry year (2003)
showed strong positive correlation (r = 0.89). Analysis of VAI for dry year (2003) indicates that the central, western, and southwestern
parts of the district reported high vegetation stress with VAI of less than − 2.0. This might be due to the fact that central
and south-western parts of the district are more prone to droughts than the other parts of the district. The correlation analysis of
SPI, NDVI, and VCI distinctly shows the impact of rainfall on vegetation dynamics. The study clearly demonstrates the
robustness of NDVI, VCI, and VAI derived from time-series MODIS data in monitoring the spatio-temporal vegetation dynamics
and delineate vegetation stress zones in tropical arid ecosystem of India.
date: 2020-06
date_type: published
publication: Arabian Journal of Geosciences (TSI)
volume: 13
number: 15
publisher: Springer, Saudi Society for Geosciences
pagerange: 1-13
id_number: doi:10.1007/s12517-020-05611-4
refereed: TRUE
issn: 1866-7511
official_url: https://doi.org/10.1007/s12517-020-05611-4
related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.1007%2Fs12517-020-05611-4&btnG=
related_url_type: pub
citation:   Reddy, G P A and Kumar, N and Sahu, N and Srivastava, R and Singh, S K and Naidu, LG K and Chary, G R and Biradar, C M and Gumma, M K and Reddy, B S and Kumar, J N  (2020) Assessment of spatio-temporal vegetation dynamics in tropical arid ecosystem of India using MODIS time-series vegetation indices.  Arabian Journal of Geosciences (TSI), 13 (15).  pp. 1-13.  ISSN 1866-7511     
document_url: http://oar.icrisat.org/11542/1/06_Spatio-temporal%20dynamics-arid%20ecosystems_AJG.pdf