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Abstract
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Article Information:
Vegetation Cover Change Monitoring Applying Satellite Data During 1972 to 2007
V. Radari, F. Amiri and S. Meleki
Corresponding Author: Fazel Amiri
Submitted: 2009 December, 28
Accepted: 2010 February, 17
Published: 2010 July, 10 |
Abstract:
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One of the influential tools in the study field of pasture and vegetation cover science is technology
of remote sensing and satellite data. Satellite data have essential role in preparing needed information for
different vegetation aspects studying. One of the applications of satellite data is to prepare the vegetation cover
percentage map. In this studying order to prepare the vegetation cover crown percentage maps of Mouteh
wildlife refuge between 1972 and 2007, the satellite data were used. Vegetation indices were produced using
MSS sensors for 1972, TM for 1987, TM for 1998 and image of LISS III sensor for 2007. In this study cover
crown percentage Map was provided by using indices, which could decrease the soil reflectance. At first
corrections was performed on each images. To make correlation between cover crown percentage and satellite
data, 290 plot data with appropriate distribution across the region were collected. By using data and several
image processing cover crown percentage was estimated for previous years. For each image cover crown
percentage models were produced by simple linear regression between produced vegetation indices from each
image and field data calculated. Regarding to data analysis SAVI plant index had the highest correlation with
cover crown percentage and selected for producing vegetation crown cover percentage. Using produced model
from SAVI index vegetation crown, cover percentage maps were produced in four classes percentage for each
year. Results showed that cover crown percentage had decreasing trend in this period.
Key words: Mouteh wildlife refuge, percentage of vegetation cover, satellite data, soil coefficient, vegetation indices, ,
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Cite this Reference:
V. Radari, F. Amiri and S. Meleki, . Vegetation Cover Change Monitoring Applying Satellite Data During 1972 to 2007. Research Journal of Environmental and Earth Sciences, (3): Page No: 118-127.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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