دراسة العلاقة بين معامل المحصول (Kc)‎ لمحصول القمح المحدد حقليا و القرينة النباتية المعدلة (NDVI)‎ المستنتجة من بيانات الاستشعار عن بعد

الملخص EN

This research implemented to evaluate the crop coefficient (Kc) using Remote Sensing Data.

The experimment carried out in Homs City, Syria during the agricultural season 2008 -2009.

The Kc values estimated for the first season using water balance method.

The Normalized Difference Vegetation Index (NDVI) meassured using spectroradiometer (Field Specpro) through different growth stages of the crop.

A linear relationsship found between the Kc and NDVI.

The obtained equation was evaluated using the measured (Kc) values during the second season.

The ressults of this study confirm that crop coefficient (Kc) derived from Normalized Difference Vegetation Index (NDVI) is a good and valid tool for the assessment of (Kc).

The Root Mean Square Error (RMSE), and Mean Bias Error (MBE) and Efficiency (E) were 0.12, -0.12, and 0.68 respectively.