Study the Trend of Temporal- Spatial Variation in Mesopotamian Marshlands and Effective Factors
Subject Areas : Water and EnvironmentAmir hossein Halabian 1 , Mehran Shabankari 2
1 - Associate professor, Geography Department, Payame- Noor University, Tehran, Iran *(Corresponding Author).
2 - - PhD in Climatology, Geography Department, Islamic Azad University, Ahwaz branch, Iran.
Keywords: Marshland, Mesopotamian, Ecosystem, dust, Variation, satellite images,
Abstract :
The 21 century encounter with many challenges which the most important challenges are environmental topics such as deforestation and marshlands destruction and it’s consequences( flood, drought and dust). The Mesopotamian marshlands as the biggest middle- east aquatic ecosystem has been placed as exoreac basin in south of Iraq and small part of south-western of Iran. These marshlands have been make one of the most dynamic fresh water ecosystems in the world in regional- local scale because of their great area, moist stability and adjancent with permanet rivers. These ecosystems have very important role and position in environmental refining and economical life of region, because of their valuable ecological hydro- climatic potentials. In recent decades, the qualitative changes resulting from undesiable human- natural processes have had the important effects on construction and function of this complex, and the role of marshlands has been coverted from dust stabilization and environmental refining in to origin and center of regional dust. This investigation with analytic- documentary statistical method, study the degradation and instability trend of Mesopotamian marshlands as one of the factors increasing dust in Iran. The result indicated that marshlands have been experienced many gradual and sudden changes. The most important factors foe these changes consist of hydro- climatic changes, infrostructure affairs development( dams and drainage), environmental threats( political and military tensions and drought) and human pollutants types( agricultural, industrial and domestic) which should be consider in regional- local hydropolitic management and planning for improvenental stability of marshlands and consequently, decreasing dust phenomena occurrence. This research indicated that satellite images have capability to reveal and describe the temporal- spatial variation of Mesopotamian marshlands.
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