To study climate variation for the period from 1980 to 2022 in the ecosystem on the Ramadi Island Plateau with gypsiferious desert soil, the current ecosystem was analyzed by measuring the plant community using quantitative methods and its relationship to the prevailing physical environment (soil and climate) and comparing it with what it was in 1980, the study area is located at Ramadi District within the center of Anbar Governorate in terms of location, and coordinates between latitudes 3,704,000 and 3,739,000 N, and between longitudes 300,000 and 360,000, with an area of 116,491.61 hectares. Climatic data were obtained from the Iraqi General Authority for Meteorology and Seismic Monitoring. Drought values in the study area were measured using the SPI analysis and the M–K testis Sen’s slope method was used to determine statistically significant trends in time series of climate and hydrological data. After conducting a cartographic analysis of the DEM for area, number of squares for the study was chosen based on the area of each elevation range above sea level. It amounted to 61 modeling sites. The natural vegetation was characterized, determining its type, density, and frequency to identify the nature of the variations occurring in it using random quadrate method with dimensions of 2 m × 2 m. Then the plant species in the area were compared with the Iraqi fluorescence results for each of the identified plant species. Use analysis of the percentage of vegetation on the Earth’s surface using satellite image to determine the NDVI of the area. It was observed that there was a linear decline with a highly significant correlation in the average temperature of the region, by 2 °C for the period from 1980 to 2022. This increase in temperature was accompanied by a clear linear decrease in the amount of rainfall falling annually, which decreased from 150 to 90 mm.