Near infrared spectroscopy techniques for soil contamination assessment in the Nile Delta


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Heavy metals concentration is considered one of the factors directly affecting soil and crop quality and, thus, human health. The objective of the current work was to critically examine the suitability of Vis- NIR (350–2500 nm) measurements for calibration procedures and methods to predict contaminated soil. 25 different sites were selected adjacent to drain Bahr El-Baqar east of Nile Delta. Spectroradiometer ASD was used to measure the spectral reflectance profile of each soil site. The concentrations of three heavy metals (Cr, Mn and Cu) were determined in the studied samples. Stepwise multiple linear regression (SMLR) was used to construct calibration models subjected to the independent validation. The obtained regression models were of good quality (R2 = 0.82, 0.75, and 0.65 for Cr, Mn, and Cu, respectively). Thus, Visible and Nearinfrared (Vis-NIR) reflection spectroscopy is cost- and time-effective procedure that can be used as an alternative to the traditional methods of determination of heavy metals in soils.

Sobre autores

E. Mohamed

National Authority for Remote Sensing and Space Sciences

Email: salama55_55@yahoo.com
Egito, Cairo

A. Ali

National Authority for Remote Sensing and Space Sciences

Email: salama55_55@yahoo.com
Egito, Cairo

M. El Shirbeny

National Authority for Remote Sensing and Space Sciences

Email: salama55_55@yahoo.com
Egito, Cairo

Afaf Abd El Razek

Faculty of Agriculture

Email: salama55_55@yahoo.com
Egito, Cairo

I. Savin

Dokuchaev Soil Science Institute; Agrarian-Technological Institute of the Peoples’ Friendship University of Russia

Autor responsável pela correspondência
Email: salama55_55@yahoo.com
Rússia, Pyzhevskii per. 7, Moscow, 119017; ul. Miklukho-Maklaya 6, Moscow, 117198

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