Monitoring of surface ecological change using remote sensing technique over Al-Hawizeh Marsh, Southern Iraq
2022
Alwan, Imzahim A. | Aziz, Nadia A.
A remote sensing-based ecological index (RSEI) is implemented specifically to monitor and assess ecological changes. In this study, RSEI is used to monitor ecological changes, which is a collective of four important indicators namely: Normalized Differential Vegetation Index (NDVI), Normalized Differential Built-up Index (NDBI), Wetness, and Land Surface Temperature (LST). The Fuzzy membership transformation is employed to standardize the four indicators. Fuzzy And overlay faction is utilized to compress the four indicators into one to assess overall regional ecological status using ArcGIS 10.5. The application of RSEI in Al-Hawizeh Marsh area, Southern Iraq, showed that the RSEI could quantitatively reveal regional ecological changes from 1990 to 2020. The case study showed that Al-Hawizeh Marsh area is observed ecological improvement during the study period, with increases in the RSEI value from 0.8293 in 2000 to 0.85 in 2020 to 0.866 in 1990. The ecological degradation was attributed to the rapid change in the water area that fluctuated between 23%, 6%, and 30% in 1990, 2000, and 2020, respectively, while there is a noteworthy increase in the value of the soil area from 55%, 70% and 42% in 1990, 2000 and 2020 respectively.
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