SPATIAL - TEMPORAL VARIATION FOR VEGETATION COVER INDEX IN AL- MUTHANA AGRICULTURAL PROJECT BY SPATIAL TECHNOLOGIES
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2018, Volume 16, Issue 1, Pages 797-807
AbstractThe current study carried out to know the spatial –temporal Variance for Normalized difference vegetation index in Al-Muthana agricultural project which locate on Al- Muthana governorate with total area 12,050.5 hectares. The climate data for governorate were collected through study periods. five satiate images Landset Tem for study region were cut out from Landsat reference which captured during 21-04-1972, 18-04-1992, 31-04-2002 and 17- 04-2017. The necessary corrections and improvements were made to the images by using Arc view 10.2 program. To evaluate the variation on Normalized vegetation index (NDVI) values for the project spatially and temporally, images classified to four classes depending on natural difference value.
The results showed no significant heterogeneity in NDVI during period 1972-1982 but it was become more clearly difference to appear in 1992, were the values of NDVI raised temporally for most locations, while the spatially difference showed at period 2002 a clearly variation, thus areas for most studied physiographic units were decreased, and this destruction in the areas were continued to the least levels at 2017.
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