•  
  •  
 

عنوان المقال عربي

تباين قابلية التربة للتعرية الريحية في المنطقة الواقعة بين محافظات القادسية والمثنى وذي قار

اسم الباحث عربي

سحر صاحب كاظم، سفير جاسم حسين، فاتنه ياسين الشعال

Abstract

The study area is located within the governorates of Qadisiyah, Muthanna and Dhi Qar, and it is under an area of ​​(5430.7) km2 with a percentage (5.83%) of the total sediment area (93,000) km2, and astronomically the study area is located between two display circles (8 10-31º - 0 17 - 32º) to the north, and two longitude (4-445º - 475-46º) to the east. As for the time limits, they were determined by the period of monitoring the climate data for the study stations (Diwaniyah, Samawah and Nasiriyah) for the period (1988-2018). Through this research, it was concluded that the wind deflation of soils in sand dune areas is more severe than that of soils of abandoned lands, as sand dune soils recorded the highest quantities of minutes transported from the surface layer, which amounted to (564.45, 188.09, 990.3 tons / hectare / year) according to the climatic capacity of the stations of Samawa, Diwaniyah and Nasiriyah respectively, and they all formed a percentage (57.1%) of the total number of soils blown by the winds in the study area, with an increase of (140.03, 46.68, 245.67 tons / hectare / year) over the amount of minutes transferred from soil The abandoned lands which amounted to (424.42, 141.41, 744.67 tons / ha / year) respectively, which all constituted (42.9%) of the total number of soil samples. It is also evident that wind atomization in the south of the study area is more severe than in the north and center of the region, and this is due to the difference in the climate susceptibility values ​​of wind atomization between stations in the study area due to the different rates of wind velocity and the amount of rain falling as well as the difference in temperature rates that in turn affect the amount of evaporation. / Transpiration, and this is also reflected in the variation in the frequency of dusty weather phenomena between the parts of the study area. The relationship between the two variables of soil susceptibility to ablation and the proportion of granules with a size less than 1 mm was tested by adopting the simple linear correlation coefficient (Pearson), and it was found that it is a strong inverse relationship between the two variables, reaching (-0.96).

Keywords

climatic susceptibility to erosion, wind erosion, sand dunes, abandoned lands, wind pressure force, climatic susceptibility to erosion.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.