قييم عامل إدارة غطاء الأراضي (C)‎ المعرضة للانجراف المائي في حوض وادي الطفيلة خلال الفترة (2019-2000)‎ باستخدام التقنيات الجيومكانية

الملخص EN

This study aimed at evaluating the factor of managing the land cover (C) exposed to water erosion in Tafila Valley basin during (2000-2019) using the geospatial techniques, where the factor of managing the land cover (C) within the formula of soil erosion (RUSLE) is considered as one of the important variables in evaluating soil erosion and a critical element in determining it.

The researcher found the values of the factor of managing the land cover (C) by means of normalized difference vegetation index (NDVI), and the variation in the values of these two variables was identified in 2000,2007,2013, and 2019 using the analysis of satellite images for Landsat 8 and 5within the interfaces of (ENVI 5.3) and the model (GISus-M), one of the extensions for (Arcmap 10.3).

The results showed that there is a strong positive relationship (R=0.95) between the amount of rain and the mean values of (NDVI) that range between (0.21 – 0.40) in the study area.

The results revealed that the relationship between the (NDVI) for the low values (less than 0.20) and the factor of managing land cover (C) for crops and grasslands was negatively significant (R= - 0.98) after the lands of the study area were classified into three main areas: dense trees, crops and grasslands, as well as building and arid areas.