تقدير عامل الغطاء النباتي (C) باستخدام موشر الاختلاف النباتي القياسي (NDVI) لمنطقة الحوض الاوسط والادنى لنهر الكبير الشمالي في محافظة اللاذقية/سورية

This research aims to determine the vegetation factor (C), one of the Revised Universal Soil Loss Equation indices using the Normalized Difference Vegetation Index which calculated by using satellite image in lower and middle Basin of Al-Kabeer Alshamali. The NDVI index was calculated with ERDAS Imagine by using Landsat TM image which was taken on 28 August 2011, with a spatial resolution of 30 meters. Then we obtained vegetation factor (C) from NDVI map of the study area by applying the relation which correlate NDVI index and vegetation factor (C). Results showed that NDVI index value of the study area was between -0.45 to 0.67, as well the vegetation factor (C) value was low in the eastern and northern parts of the study area where the forest is dominant, while the high value of vegetation factor (C) was about 0.8 to 1, was found in west parts which is representing by urban zones. The moderate values of factor (C) were concentrated in the middle and eastern parts of the study area, the regions of olive and citrus agriculture which permit to moderate protection of soil, the moderate values were 0.4 to 0.8.