The objectives of this study are to determine the spatial and temporal land use/cover changes in a semi-arid agricultural basin (Develi Basin) after the implementation of an irrigation project and to understand how these changes affected the wetlands (Sultan Marshes) located in the basin. The changes were determined using multitemporal Landsat Thematic Mapper and Landsat 8 Operational Land Imager imagery taken in 1987, 1998, 2007, and 2013. The images were classified into six information classes (grasslands/shrublands, croplands, permanent wetlands, water bodies, barren, and urban/built-up) using a hybrid classification method. Post-classification change detection was applied to determine the changes between different years. Overall, the accuracy of the classified images ranged from 85 to 94%. Grasslands/shrublands covered the largest area in the basin (63% in 2013), followed by croplands (32% in 2013). The area covered by water bodies, permanent wetlands, barren, and urban/built-up was 5% (in 2013). From 1987 to 2013, croplands expanded by 56%, while grasslands/shrublands declined by 15%. The areas occupied by water bodies decreased by 88% and permanent wetlands decreased by 4%. Urban/built-up areas expanded by 140%. The hydrologic regime of the Sultan Marshes wetland changed, which resulted in declines in water volumes by 85% and in water inflows by 55% from 2000 to 2015. Climatic variations during the 1987–2013 period were low and there was no apparent trend in precipitation and air temperature, which ruled out climatic conditions as one of the drivers of wetland changes. Economic and institutional factors supported the expansion of irrigated agriculture and animal husbandry in the basin and accelerated the expansion of croplands and conversion to industrial and fodder crops and orchards from traditional non-irrigated crops. Expansion of croplands and irrigated agriculture were the major drivers of the changes in the Sultan Marshes.

这项研究的目的是确定灌溉工程实施后半干旱农业盆地（德维利盆地）的土地利用时空变化/盖层变化，并了解这些变化如何影响位于该地区的湿地（苏丹沼泽）。盆地。这些变化是使用1987、1998、2007和2013年拍摄的多时态Landsat专题制图仪和Landsat 8实用土地成像仪图像确定的。图像分为六类信息（草地/灌木丛，耕地，永久湿地，水体，贫瘠，以及城市/城市建筑）。分类后更改检测用于确定不同年份之间的更改。总体而言，分类图像的准确性介于85％至94％之间。草原/灌木丛覆盖了该盆地最大的区域（2013年为63％），其次是农田（2013年为32％）。2013年，水体，永久性湿地，贫瘠和城市/建成区的面积为5％。从1987年到2013年，耕地面积增加了56％，而草原/灌木丛减少了15％。水体占据的面积减少了88％，永久湿地减少了4％。城市/建成区面积增长了140％。苏丹沼泽湿地的水文状况发生了变化，导致2000年至2015年的水量减少了85％，水的流入减少了55％。1987-2013年期间的气候变化很小，没有明显的降水趋势空气温度，这排除了作为湿地变化驱动因素之一的气候条件。经济和体制因素支持流域内灌溉农业和畜牧业的发展，并加速了耕地的扩张，并从传统的非灌溉作物转变为工业和饲料作物以及果园。扩大耕地和灌溉农业是苏丹沼泽改变的主要驱动力。