Land Use Changes in Dust Sources of South and South-East Ahwaz

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NOROUZI A.; Ansari M. R.; MOAZAMI M.; Asgharipour Dasht Bozorg N.

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Journal: Journal of Water and Soil Science Year:2019 | Volume:23 | Issue:3 Page(s): 341-354

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Title

Land Use Changes in Dust Sources of South and South-East Ahwaz

Author(s)

NOROUZI A. | Ansari M. R. | MOAZAMI M. | Asgharipour Dasht Bozorg N. | Issue Writer Certificate

Keywords

Change DetectionQ1

Land UseQ2

SPI indexQ2

Dust SourcesQ1

AhwazQ1

Abstract

In recent decades, Land Use changes have been one of the most important environmental issues worldwide. This study was carried out to investigate and analyse Land Use changes in Dust Sources of south and south-east Ahwaz and surrounding lands using remote sensing technique. Firstly, based on the standard precipitation index (SPI), the years 1986, 2002 and 2016 were selected as years with near normal situation. In the next step, Land Use maps of the study area were extracted using a Landsat satellite images and supervised classification methods. MNDWI index was used to increase the accuracy of image classification. In order to evaluate the efficiency of each method, the overall accuracy and kappa coefficient were used. Finally, to investigate Land Use change a post-classification comparison method was employed. According to research findings, in the first period (1986-2002), the area of vegetation, wet land with vegetation and water bodies have increased by 419%, 219% and 40. 7%, respectively, in contrast, the area of barren and poor range has reduced by 36. 6%. One of the major causes of these changes is human factors such as population growth and climate variables such as proper amounts of precipitation. In the second period (2002-2016), the area of wet land with vegetation, water bodies and vegetation has been decreased by 94%, 49. 3% and 46. 7%, respectively; in contrast, barren and poor range land has been increased by 45. 4%. Recent droughts increase the temperature and incorrect and non-principled management of water resources has been effective in reducing green cover and water bodies and increasing in bare land. The results show that, during the three decades, built-up land has been increased by 157%, while River bed has decreased by 28. 8%. These results indicate a total degradation in the region due to climate change and human activities.

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APA: Copy

NOROUZI, A., Ansari, M. R., MOAZAMI, M., & Asgharipour Dasht Bozorg, N.. (2019). Land Use Changes in Dust Sources of South and South-East Ahwaz. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 23(3 ), 341-354. SID. https://sid.ir/paper/367385/en

Vancouver: Copy

NOROUZI A., Ansari M. R., MOAZAMI M., Asgharipour Dasht Bozorg N.. Land Use Changes in Dust Sources of South and South-East Ahwaz. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2019;23(3 ):341-354. Available from: https://sid.ir/paper/367385/en

IEEE: Copy

A. NOROUZI, M. R. Ansari, M. MOAZAMI, and N. Asgharipour Dasht Bozorg, “Land Use Changes in Dust Sources of South and South-East Ahwaz,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 23, no. 3 , pp. 341–354, 2019, [Online]. Available: https://sid.ir/paper/367385/en

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